table of contents - DodgeIntrepid.Net

table of contents - DodgeIntrepid.Net
TABLE OF CONTENTS
1.0
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.1
1.2
1.3
System Coverage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Six Step Troubleshooting Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
FUSES AND LIGHT BULBS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
2.0
IDENTIFICATION OF SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
3.0
SYSTEM DESCRIPTION AND FUNCTIONAL OPERATION . . . . . . . . . . . . . . . . . . . . . .1
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
3.12
3.13
3.14
3.15
3.16
3.17
Airbag System/Occupant Restraint controller System . . . . . . . . . . . . . . . . . . . . . . .2
3.1.1 Driver Airbag Module (DAB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
3.1.2 Clockspring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
3.1.3 Passenger Airbag Module (PAB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
3.1.4 Seat Airbag Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
3.1.5 ACM/ORC/SIACM Diagnostic Trouble Codes . . . . . . . . . . . . . . . . . . . . . .4
3.1.5.1 Active Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
3.1.5.2 Stored Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Audio System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Body Control Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Chime System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Climate Control System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.5.1 Automatic Temperature Control (ATC) . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.5.2 Manual Temperature Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.5.3 HVAC Blend, Mode, and Recirculation Door Operation . . . . . . . . . . . . . .8
3.5.4 Rear Window Defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Exterior Lighting System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.6.1 Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.6.2 Headlamp Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.6.3 Headlamp Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.6.4 Fog Lamp Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Interior Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.7.1 Courtesy Lamp Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.7.2 Illuminated Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Mechanical Instrument Cluster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Memory System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.9.1 Power Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.9.2 Memory Seat Glide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.9.3 Guard Bands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.9.4 Memory Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.9.5 Heated Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Overhead Travel Information System (OTIS)/Homelink. . . . . . . . . . . . . . . . . . . . .11
3.10.1 Setting the Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
3.10.2 Setting the Compass Variance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Power Door Lock System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Sentry Key Immobilizer System (SKIS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Speed Proportional Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Vehicle Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3.14.1 Bus Failure Message. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Vehicle Theft Security System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Wiper System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
3.16.1 System Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Diagnostic Trouble Codes Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
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3.18
3.19
3.20
3.21
4.0
3.17.1 Occupant Restraint Controller Trouble Codes . . . . . . . . . . . . . . . . . . . . .16
3.17.2 Audio Trouble Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
3.17.3 Body Control Module Diagnostic Trouble Codes . . . . . . . . . . . . . . . . . . .16
3.17.4 Instrument Cluster DTC’s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
3.17.5 Memory Heated Seat Mirror Module . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Using the DRB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
DRBIII Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
DRBIII Does Not Power Up (Blank Screen). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Display is Not Visible. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
DISCLAIMERS, SAFETY, WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
4.1
4.2
4.3
DISCLAIMERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
4.2.1 TECHNICIAN SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . .18
4.2.2 VEHICLE PREPARATION FOR TESTING. . . . . . . . . . . . . . . . . . . . . . . .19
4.2.3 SERVICING SUB-ASSEMBLIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
4.2.4 DRBIIIT SAFETY INFORMATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
4.3.1 VEHICLE DAMAGE WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
4.3.2 ROAD TESTING A COMPLAINT VEHICLE . . . . . . . . . . . . . . . . . . . . . . .19
5.0
REQUIRED TOOLS AND EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
6.0
GLOSSARY OF TERMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
7.0
DIAGNOSTIC INFORMATION AND PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . .21
AIRBAG
LEFT SIACM ACCELEROMETER # 1 (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
LEFT SIACM ACCELEROMETER # 1 (STORED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
LEFT SIACM ACCELEROMETER # 2 (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
LEFT SIACM ACCELEROMETER # 2 (STORED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
LEFT SIACM INTERNAL # 1 (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
LEFT SIACM INTERNAL # 1 (STORED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
LEFT SIACM OUTPUT DRIVER # 1 (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
LEFT SIACM OUTPUT DRIVER # 1 (STORED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
LEFT SIACM, LOSS OF IGNITION RUN/START (ACTIVE) . . . . . . . . . . . . . . . . . . . . . .22
LEFT SIACM, NO PCI TRANSMISSION (ACTIVE). . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
LEFT SIACM, NO PCI TRANSMISSION (STORED). . . . . . . . . . . . . . . . . . . . . . . . . . . .24
LEFT SIACM, SEAT SQUIB CIRCUIT OPEN (STORED) . . . . . . . . . . . . . . . . . . . . . . . .24
LEFT SIACM, SEAT SQUIB CIRCUIT SHORTED (STORED) . . . . . . . . . . . . . . . . . . . .24
LEFT SIACM, SEAT SQUIB SHORT TO BATTERY (STORED). . . . . . . . . . . . . . . . . . .24
LEFT SIACM, SEAT SQUIB SHORTED TO GROUND (STORED) . . . . . . . . . . . . . . . .24
ORC, INTERROGATE LEFT SIACM (STORED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
ORC, NO LEFT SIACM MESSAGE (STORED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
LEFT SIACM, SEAT SQUIB CIRCUIT OPEN (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . .26
LEFT SIACM, SEAT SQUIB CIRCUIT SHORTED (ACTIVE) . . . . . . . . . . . . . . . . . . . . .29
LEFT SIACM, SEAT SQUIB SHORT TO BATTERY (ACTIVE). . . . . . . . . . . . . . . . . . . .31
LEFT SIACM, SEAT SQUIB SHORTED TO GROUND (ACTIVE) . . . . . . . . . . . . . . . . .34
ORC ACCELEROMETER (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
ORC ACCELEROMETER (STORED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
ORC FIRING STORED ENERGY (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
ORC FIRING STORED ENERGY (STORED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
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ORC INTERNAL # 1 (ACTIVE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
ORC INTERNAL # 1 (STORED). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
ORC INTERNAL # 2 (ACTIVE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
ORC INTERNAL # 2 (STORED). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
ORC, NO PCI TRANSMISSION (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
ORC, OUTPUT DRIVER # 1 (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
ORC, OUTPUT DRIVER # 1 (STORED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
ORC, OUTPUT DRIVER # 2 (STORED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
ORC, OUTPUT DRIVER # 2 (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
ORC, CALIBRATION MISMATCH (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
ORC, CALIBRATION MISMATCH (STORED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
ORC, CLUSTER MESSAGE MISMATCH (STORED) . . . . . . . . . . . . . . . . . . . . . . . . . . .42
ORC, DRIVER SQUIB # 1 CIRCUIT OPEN (STORED) . . . . . . . . . . . . . . . . . . . . . . . . .42
ORC, DRIVER SQUIB # 1 CIRCUIT SHORTED (STORED) . . . . . . . . . . . . . . . . . . . . .42
ORC, DRIVER SQUIB # 1 SHORTED TO BATTERY (STORED) . . . . . . . . . . . . . . . . .42
ORC, DRIVER SQUIB # 1 SHORTEDTO GROUND (STORED) . . . . . . . . . . . . . . . . . .42
ORC, LOSS OF IGNITION RUN ONLY (STORED). . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
ORC, LOSS OF IGNITION RUN/START (STORED). . . . . . . . . . . . . . . . . . . . . . . . . . . .42
ORC, NO CLUSTER MESSAGES (STORED). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
ORC, NO ODOMETER MESSAGE (STORED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
ORC, NO PCI TRANSMISSION (STORED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
ORC, PASSENGER SQUIB # 1 CIRCUIT OPEN (STORED). . . . . . . . . . . . . . . . . . . . .42
ORC, PASSENGER SQUIB # 1 CIRCUIT SHORTED (STORED) . . . . . . . . . . . . . . . . .42
ORC, PASSENGER SQUIB # 1 SHORTED TO BATTERY (STORED) . . . . . . . . . . . . .42
ORC, PASSENGER SQUIB # 1 SHORTED TO GROUND (STORED) . . . . . . . . . . . . .42
ORC, VEHICLE BODY STYLE UNKNOWN (STORED) . . . . . . . . . . . . . . . . . . . . . . . . .42
ORC, WARNING LAMP CIRCUIT OPEN (STORED) . . . . . . . . . . . . . . . . . . . . . . . . . . .42
ORC, WARNING LAMP CIRCUIT SHORTED (STORED) . . . . . . . . . . . . . . . . . . . . . . .42
ORC, CLUSTER MESSAGE MISMATCH (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
ORC, DRIVER SQUIB # 1 CIRCUIT OPEN (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . .48
ORC, DRIVER SQUIB # 1 CIRCUIT SHORTED (ACTIVE) . . . . . . . . . . . . . . . . . . . . . .51
ORC, DRIVER SQUIB # 1 SHORTED TO BATTERY (ACTIVE) . . . . . . . . . . . . . . . . . .53
ORC, DRIVER SQUIB # 1 SHORTED TO GROUND (ACTIVE) . . . . . . . . . . . . . . . . . .56
ORC, INTERROGATE LEFT SIACM (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
ORC, INTERROGATE RIGHT SIACM (ACTIVE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
ORC, INTERROGATE RIGHT SIACM (STORED). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
ORC, NO RIGHT SIACM MESSAGE (STORED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
RIGHT SIACM, NO PCI TRANSMISSION (STORED) . . . . . . . . . . . . . . . . . . . . . . . . . .61
RIGHT SIACM, SEAT SQUIB CIRCUIT OPEN (STORED). . . . . . . . . . . . . . . . . . . . . . .61
RIGHT SIACM, SEAT SQUIB CIRCUIT SHORTED (STORED) . . . . . . . . . . . . . . . . . . .61
RIGHT SIACM, SEAT SQUIB SHORTED TO BATTERY (STORED) . . . . . . . . . . . . . . .61
RIGHT SIACM, SEAT SQUIB SHORTED TO GROUND (STORED) . . . . . . . . . . . . . . .61
ORC, LOSS OF IGNITION RUN ONLY (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
ORC, LOSS OF IGNITION RUN/START (ACTIVE). . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
ORC, LOSS OF IGNITION RUN/START WITH SIACM (ACTIVE) . . . . . . . . . . . . . . . . .68
ORC, NO CLUSTER MESSAGES (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
ORC, NO LEFT SIACM MESSAGE (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
ORC, NO ODOMETER MESSAGE (ACTIVE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
ORC, NO RIGHT SIACM MESSAGE (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
ORC, NOT CONFIGURED FOR SAB (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
ORC, NOT CONFIGURED FOR SAB (STORED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
ORC, PASSENGER SQUIB # 1 CIRCUIT OPEN (ACTIVE). . . . . . . . . . . . . . . . . . . . . .80
ORC, PASSENGER SQUIB # 1 CIRCUIT SHORTED (ACTIVE) . . . . . . . . . . . . . . . . . .82
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TABLE OF CONTENTS - Continued
ORC, PASSENGER SQUIB # 1 SHORTED TO BATTERY (ACTIVE) . . . . . . . . . . . . . .84
ORC, PASSENGER SQUIB # 1 SHORTED TO GROUND (ACTIVE) . . . . . . . . . . . . . .86
ORC, VEHICLE BODY STYLE UNKNOWN (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . .88
ORC, WARNING LAMP CIRCUIT OPEN (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . .90
ORC, WARNING LAMP CIRCUIT SHORTED (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . .92
RIGHT SIACM ACCELEROMETER # 1 (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
RIGHT SIACM ACCELEROMETER # 1 (STORED) . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
RIGHT SIACM ACCELEROMETER # 2 (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
RIGHT SIACM ACCELEROMETER # 2 (STORED) . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
RIGHT SIACM INTERNAL # 1 (ACTIVE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
RIGHT SIACM INTERNAL # 1 (STORED). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
RIGHT SIACM OUTPUT DRIVER # 1 (ACTIVE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
RIGHT SIACM OUTPUT DRIVER # 1 (STORED). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
RIGHT SIACM, LOSS OF IGNITION RUN/START (ACTIVE). . . . . . . . . . . . . . . . . . . . .94
RIGHT SIACM, NO PCI TRANSMISSION (ACTIVE) . . . . . . . . . . . . . . . . . . . . . . . . . . .94
RIGHT SIACM, SEAT SQUIB CIRCUIT OPEN (ACTIVE). . . . . . . . . . . . . . . . . . . . . . . .96
RIGHT SIACM, SEAT SQUIB CIRCUIT SHORTED (ACTIVE) . . . . . . . . . . . . . . . . . . . .99
RIGHT SIACM, SEAT SQUIB SHORTED TO BATTERY (ACTIVE) . . . . . . . . . . . . . . .101
RIGHT SIACM, SEAT SQUIB SHORTED TO GROUND (ACTIVE) . . . . . . . . . . . . . . .104
AUDIO
ALL OUTPUTS SHORTED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107
AM SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
CASS ERROR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
CASSETTE COM FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
CASSETTE EJECT FAILURE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
CASSETTE LOADING FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
CASSETTE TAPE TENSION HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
CASSETTE TAPE TENSION LOW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
CD ERROR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
CD MECHANICAL FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
FM SECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
RADIO ERROR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
*AM/FM SWITCH INOPERATIVE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
*ANY STATION PRESET SWITCH INOPERATIVE. . . . . . . . . . . . . . . . . . . . . . . . . . . .109
*BALANCE INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
*CD EJECT SWITCH INOPERATIVE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
*EQUALIZER INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
*FADER INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
*FF/RW SWITCH INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
*HOUR/MINUTE SWITCHES INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
*PWR SWITCH INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
*SCAN SWITCH INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
*SEEK SWITCH INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
*SET SWITCH INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
*TAPE EJECT SWITCH INOPERATIVE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
*TIME SWITCH INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
*TUNE SWITCH INOPERATIVE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
CD CHANGER MECHANICAL FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112
CD CHANGER PLAY FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113
CD CHANGER READ FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113
IMPROPER DISK IN CD CHANGER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113
CD CHANGER POWER SUPPLY TOO HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114
iv
TABLE OF CONTENTS - Continued
CD CHANGER TEMPERATURE HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115
CD CHANGER TEMPERATURE LOW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115
CD PLAY FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116
CD READ FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116
IMPROPER DISK IN CD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116
FRONT OUTPUT SHORT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
LEFT OUTPUT SHORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120
NO ANTENNA CONNECTON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123
POWER SUPPLY TOO HIGH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125
REAR OUTPUT SHORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126
RIGHT OUTPUT SHORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .129
*NO SOUND FROM ALL SPEAKERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132
*NO SOUND FROM CENTER INSTRUMENT PANEL SPEAKER . . . . . . . . . . . . . . . .137
*POOR SOUND FROM CENTER INSTRUMENT PANEL SPEAKER . . . . . . . . . . . . .137
*NO SOUND FROM LEFT DOOR SAIL SPEAKER . . . . . . . . . . . . . . . . . . . . . . . . . . .139
*POOR SOUND FROM LEFT DOOR SAIL SPEAKER. . . . . . . . . . . . . . . . . . . . . . . . .139
*NO SOUND FROM LEFT FRONT DOOR SPEAKER . . . . . . . . . . . . . . . . . . . . . . . . .141
*POOR SOUND FROM LEFT FRONT DOOR SPEAKER . . . . . . . . . . . . . . . . . . . . . .141
*NO SOUND FROM LEFT REAR DOOR SPEAKER . . . . . . . . . . . . . . . . . . . . . . . . . .143
*POOR SOUND FROM LEFT REAR DOOR SPEAKER . . . . . . . . . . . . . . . . . . . . . . .143
*NO SOUND FROM RIGHT DOOR SAIL SPEAKER . . . . . . . . . . . . . . . . . . . . . . . . . .145
*POOR SOUND FROM RIGHT DOOR SAIL SPEAKER . . . . . . . . . . . . . . . . . . . . . . .145
*NO SOUND FROM RIGHT FRONT DOOR SPEAKER . . . . . . . . . . . . . . . . . . . . . . . .147
*POOR SOUND FROM RIGHT FRONT DOOR SPEAKER . . . . . . . . . . . . . . . . . . . . .147
*NO SOUND FROM RIGHT REAR DOOR SPEAKER . . . . . . . . . . . . . . . . . . . . . . . . .149
*POOR SOUND FROM RIGHT REAR DOOR SPEAKER . . . . . . . . . . . . . . . . . . . . . .149
*POOR SOUND FROM ALL SPEAKERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .151
CHIME
CHIME
CHIME
CHIME
CHIME
CHIME
INOPERATIVE AT ALL TIMES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .153
INOPERATIVE WITH DRIVERS SEAT BELT UNFASTENED . . . . . . . . . . . . .154
INOPERATIVE WITH VEHICLE SPEED ABOVE 75 MPH (120 KPH) . . . . . .156
SOUNDS WITH DRIVER DOOR OPEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .157
SOUNDS WITH DRIVER SEAT BELT FASTENED . . . . . . . . . . . . . . . . . . . . .158
COMMUNICATION
ATC MESSAGES NOT RECEIVED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .159
*BUS +/- SIGNALS OPEN FROM ATC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .159
BATTERY POWER TO MODULE DISCONNECTED . . . . . . . . . . . . . . . . . . . . . . . . . .162
EATX BUS COMMUNICATION FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .163
EEPROM CONSTANT CHECKSUM FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .164
INTERNAL BASE/PREMIUM SELECT FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . .165
MHSMM MESSAGES NOT RECEIVED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .166
*BUS +/- SIGNAL OPEN FROM MEMORY HEATED SEAT/MIRROR MODULE . . . .166
MIC MESSAGE NOT RECEIVED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .168
*BUS +/- SIGNALS OPEN FROM INSTRUMENT CLUSTER. . . . . . . . . . . . . . . . . . . .168
NO PCI MESSAGES FROM CD CHANGER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .170
OTIS MESSAGES NOT RECEIVED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .172
POST FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .173
SBEC BUS COMMUNICATION FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .174
SKIM MESSAGES NOT RECEIVED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .175
*BUS +/- SIGNAL OPEN FROM SKIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .176
*BUS +/- SIGNALS OPEN FROM OR BLANK SCREEN ON OTIS . . . . . . . . . . . . . . .178
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TABLE OF CONTENTS - Continued
*DRB DISPLAYS A BLANK SCREEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .180
*FUSED IGNITION SWITCH OUTPUT TO BCM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .181
*NO RESPONSE FROM BODY CONTROL MODULE (BUS +/- SIGNAL OPEN) . . .184
*NO RESPONSE FROM CAB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .186
*NO RESPONSE FROM LEFT SIACM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .189
*NO RESPONSE FROM ORC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .192
*NO RESPONSE FROM PCM (PCI BUS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .194
*NO RESPONSE FROM RADIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .196
*NO RESPONSE FROM RIGHT SIACM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200
*NO RESPONSE FROM TCM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203
*ODOMETER DISPLAYS 9NO BUS9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206
*PCI BUS COMMUNICATION FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .207
ELECTRICALLY HEATED SYSTEMS
DRIVER HEATED SEAT SWITCH OPEN/SHORTED TO GROUND . . . . . . . . . . . . . .210
DRIVER HEATED SEAT SWITCH STUCK IN HIGH STATE . . . . . . . . . . . . . . . . . . . .212
DRIVER HEATED SEAT SWITCH STUCK IN LOW STATE . . . . . . . . . . . . . . . . . . . . .212
DRIVER SEAT HEAT OUTPUT OPEN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .214
DRIVER SEAT HEAT OUTPUT SHORT TO GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . .216
DRIVER THERMISTOR OUT OF RANGE HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218
DRIVER THERMISTOR OUT OF RANGE LOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220
PASSENGER HEATED SEAT SWITCH OPEN/SHORTED TO GROUND. . . . . . . . . .223
PASSENGER HEATED SEAT SWITCH STUCK IN HIGH STATE . . . . . . . . . . . . . . . .225
PASSENGER HEATED SEAT SWITCH STUCK IN LOW STATE . . . . . . . . . . . . . . . .225
PASSENGER SEAT HEAT OUTPUT OPEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .227
PASSENGER SEAT HEAT OUTPUT SHORT TO GND . . . . . . . . . . . . . . . . . . . . . . . .229
PASSENGER THERMISTOR OUT OF RANGE HIGH . . . . . . . . . . . . . . . . . . . . . . . . .231
PASSENGER THERMISTOR OUT OF RANGE LOW . . . . . . . . . . . . . . . . . . . . . . . . .233
*REAR WINDOW DEFOGGER INOPERATIVE (MANUAL A/C). . . . . . . . . . . . . . . . . .236
*REAR WINDOW DEFOGGER INOPERATIVE W/ATC . . . . . . . . . . . . . . . . . . . . . . . .239
EXTERIOR LIGHTING
HEADLAMP SWITCH INPUT FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .242
*AUTO HEADLAMPS AND OR FOG LAMPS NOT OPERATING PROPERLY . . . . . .245
*FOG LAMPS WILL NOT TURN OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .248
*FOG LAMPS WILL NOT TURN ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .249
*HEADLAMP TIME DELAY INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .251
*HIGH BEAM HEADLAMPS WILL NOT TURN OFF . . . . . . . . . . . . . . . . . . . . . . . . . . .252
*HIGH BEAM HEADLAMPS WILL NOT TURN ON. . . . . . . . . . . . . . . . . . . . . . . . . . . .253
*LOW BEAM HEADLAMPS WILL NOT TURN OFF . . . . . . . . . . . . . . . . . . . . . . . . . . .256
*LOW BEAM HEADLAMPS WILL NOT TURN ON . . . . . . . . . . . . . . . . . . . . . . . . . . . .257
*PARK LAMPS WILL NOT TURN OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .259
*PARK LAMPS WILL NOT TURN ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .260
HEATING & A/C
A/C CONTROL A/C SWITCH FAILURE (MANUAL A/C) . . . . . . . . . . . . . . . . . . . . . . . .263
A/C CONTROL EBL SWITCH FAILURE (MAN A/C) . . . . . . . . . . . . . . . . . . . . . . . . . . .263
A/C CONTROL BLEND DOOR INPUT OPEN OR SHORT TO GROUND . . . . . . . . .266
A/C CONTROL BLEND DOOR INPUT SHORT TO BATTERY. . . . . . . . . . . . . . . . . . .268
A/C CONTROL MODE DOOR INPUT OPEN OR SHORTED TO BATTERY . . . . . . .269
A/C CONTROL MODE DOOR INPUT SHORTED TO GROUND . . . . . . . . . . . . . . . . .271
ATC SWITCH FAILED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .272
BLEND DOOR FEEDBACK FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .273
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TABLE OF CONTENTS - Continued
BLEND DOOR STALL TEST FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .273
BLEND DOOR OUTPUT SHORTED TO BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . . .279
COMMON OUTPUT SHORTED TO BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .279
MODE DOOR OUTPUT SHORTED TO BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . . . .279
RECIRC DOOR OUTPUT SHORTED TO BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . .279
BLEND DOOR OUTPUT SHORTED TO GROUND . . . . . . . . . . . . . . . . . . . . . . . . . . .282
COMMON OUTPUT SHORTED TO GROUND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .284
EVAPORATOR TEMPERATURE SENSOR FAILURE. . . . . . . . . . . . . . . . . . . . . . . . . .286
IN-CAR TEMPERATURE SENSOR FAILUE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .289
MODE DOOR FEEDBACK FAILURE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .294
MODE DOOR STALL FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .294
MODE DOOR OUTPUT SHORTED TO GROUND . . . . . . . . . . . . . . . . . . . . . . . . . . . .300
RECIRC DOOR OUTPUT SHORT TO GROUND . . . . . . . . . . . . . . . . . . . . . . . . . . . . .302
RECIRCULATION DOOR TEST FAILURE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .303
SUN LOAD SENSOR FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .305
*ATC A/C CLUTCH INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .307
*ATC BLOWER MOTOR INOPEATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .308
*ATC BLOWER MOTOR SPEEDS INCORRECT . . . . . . . . . . . . . . . . . . . . . . . . . . . . .311
*ATC HEAD ILLUMINATION PROBLEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .313
*ATC SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .314
*ATC TEMPERATURE CONTROL INCORRECT IN SUN OR SHADE . . . . . . . . . . . .315
*BLEND AIR DOOR INOPERATIVE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .317
*MANUAL A/C - BLOWER MOTOR SPEEDS INCORRECT . . . . . . . . . . . . . . . . . . . .319
*MANUAL A/C - CLUTCH INOPERATIVE - NO LED . . . . . . . . . . . . . . . . . . . . . . . . . .320
*MANUAL A/C - CONTROL HEAD BUTTON SWITCH INOPERATIVE . . . . . . . . . . . .321
*MANUAL A/C BLOWER MOTOR INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . .322
*MANUAL A/C CONTROL HEAD ILLUMINATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . .325
*MANUAL A/C SYSTEM TEST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .326
*MODE DOOR INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .327
INSTRUMENT CLUSTER
DIMMING LEVEL SWITCH FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .329
FUEL LEVEL SENDING UNIT FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .333
NO MESSAGES FROM ABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .335
NO MESSAGES FROM AECM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .336
NO MESSAGES FROM BCM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .337
NO MESSAGES FROM EATX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .338
NO MESSAGES FROM SBEC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .339
*ABS WARNING INDICATOR NOT OPERATING PROPERLY . . . . . . . . . . . . . . . . . .340
*AIRBAG WARNING INDICATOR NOT OPERATING PROPERLY . . . . . . . . . . . . . . .341
*ALL GAUGES NOT OPERATING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .342
*BRAKE INDICATOR NOT OPERATING PROPERLY . . . . . . . . . . . . . . . . . . . . . . . . .344
*CHARGING INDICATOR NOT OPERATING PROPERLY. . . . . . . . . . . . . . . . . . . . . .348
*CHECK ENGINE INDICATOR NOT OPERATING PROPERLY . . . . . . . . . . . . . . . . .349
*CLUSTER AND PANEL ILLUMINATION PROBLEMS . . . . . . . . . . . . . . . . . . . . . . . . .350
*CRUISE ON INDICATOR NOT OPERATING PROPERLY . . . . . . . . . . . . . . . . . . . . .355
*DECKLID AJAR INDICATOR NOT OPERATING PROPERLY . . . . . . . . . . . . . . . . . .357
*DOOR AJAR INDICATOR NOT OPERATING PROPERLY . . . . . . . . . . . . . . . . . . . . .359
*ENGINE COOLANT TEMPERATURE INDICATOR NOT OPERATING PROPERLY .360
*FUEL GAUGE NOT OPERATING PROPERLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .361
*LOW FUEL INDICATOR NOT OPERATING PROPERLY . . . . . . . . . . . . . . . . . . . . . .364
*LOW WASHER FLUID INDICATOR NOT OPERATING PROPERLY . . . . . . . . . . . . .365
*ODOMETER NOT OPERATING PROPERLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .368
vii
TABLE OF CONTENTS - Continued
*OIL PRESSURE WARNING INDICATOR NOT OPERATING PROPERLY. . . . . . . . .369
*PRND3L INDICATOR MALFUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .372
*SEATBELT INDICATOR NOT OPERATING PROPERLY . . . . . . . . . . . . . . . . . . . . . .373
*SPEEDOMETER GAUGE NOT OPERATING PROPERLY . . . . . . . . . . . . . . . . . . . . .376
*TACHOMETER NOT OPERATING PROPERLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . .378
*TEMPERATURE GAUGE NOT OPERATING PROPERLY . . . . . . . . . . . . . . . . . . . . .380
*TRACTION OFF INDICATOR NOT OPERATING PROPERLY . . . . . . . . . . . . . . . . . .382
*TRACTION ON INDICATOR NOT OPERATING PROPERLY . . . . . . . . . . . . . . . . . . .385
INTERIOR LIGHTING
COURTESY LAMP OUTPUT SHORT TO BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . .386
*COURTESY LAMPS INOPERATIVE - ALL LAMPS . . . . . . . . . . . . . . . . . . . . . . . . . . .388
*COURTESY LAMPS INOPERATIVE - DOOR LAMPS . . . . . . . . . . . . . . . . . . . . . . . .389
*COURTESY LAMPS INOPERATIVE - OVERHEAD LAMPS. . . . . . . . . . . . . . . . . . . .390
*COURTESY LAMPS INOPERATIVE FROM DOME LAMP SWITCH ONLY . . . . . . .391
*COURTESY LAMPS INOPERATIVE FROM DRIVERS DOOR. . . . . . . . . . . . . . . . . .392
*COURTESY LAMPS INOPERATIVE FROM LEFT REAR DOOR. . . . . . . . . . . . . . . .393
*COURTESY LAMPS INOPERATIVE FROM PASSENGER DOOR . . . . . . . . . . . . . .394
*COURTESY LAMPS INOPERATIVE FROM RIGHT REAR DOOR . . . . . . . . . . . . . .395
*COURTESY LAMPS STAY ON AT ALL TIMES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .396
MEMORY SEAT
DRIVER MIRROR HORIZONTAL SENSOR OUT OF RANGE HIGH . . . . . . . . . . . . .399
DRIVER MIRROR HORIZONTAL SENSOR OUT OF RANGE LOW . . . . . . . . . . . . . .400
DRIVER MIRROR VERTICAL SENSOR OUT OF RANGE HIGH . . . . . . . . . . . . . . . .401
DRIVER MIRROR VERTICAL SENSOR OUT OF RANGE LOW. . . . . . . . . . . . . . . . .402
FRONT RISER DOWN POSITION STUCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .403
FRONT RISER SENSOR OUT OF RANGE HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . .404
FRONT RISER SENSOR OUT OF RANGE LOW. . . . . . . . . . . . . . . . . . . . . . . . . . . . .406
FRONT RISER UP POSITION STUCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .408
HORIZONTAL FORWARD POSITION STUCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .409
HORIZONTAL REARWARD POSITION STUCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .410
HORIZONTAL SENSOR OUT OF RANGE HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . .411
HORIZONTAL SENSOR OUT OF RANGE LOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . .413
MEMORY POSITION #1 STUCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .415
MEMORY POSITION #2 STUCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .416
MEMORY SET 9S9 POSITION STUCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .417
PASSENGER MIRROR HORIZONTAL SENSOR OUT OF RANGE HIGH . . . . . . . . .418
PASSENGER MIRROR HORIZONTAL SENSOR OUT OF RANGE LOW. . . . . . . . . .419
PASSENGER MIRROR VERTICAL SENSOR OUT OF RANGE HIGH . . . . . . . . . . . .420
PASSENGER MIRROR VERTICAL SENSOR OUT OF RANGE LOW . . . . . . . . . . . .421
REAR RISER DOWN POSITION STUCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .422
REAR RISER SENSOR OUT OF RANGE HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . .423
REAR RISER SENSOR OUT OF RANGE LOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .425
REAR RISER UP POSITION STUCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .427
RECLINER DOWN POSITION STUCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .428
RECLINER SENSOR OUT OF RANGE HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .429
RECLINER SENSOR OUT OF RANGE LOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .431
RECLINER UP POSITION STUCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .433
*DRIVER MIRROR INOPERATIVE FROM MEMORY. . . . . . . . . . . . . . . . . . . . . . . . . .434
*MEMORY SWITCH INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .436
*PASSENGER MIRROR INOPERATIVE FROM MEMORY . . . . . . . . . . . . . . . . . . . . .440
viii
TABLE OF CONTENTS - Continued
OVERHEAD CONSOLE
AMBIENT TEMPERATURE SENSOR FAILURE; OTIS OUTSIDE TEMPERATURE
SHOWS SC OR OC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .442
*DISTANCE TO EMPTY INOPERATIVE OR WRONG . . . . . . . . . . . . . . . . . . . . . . . . .445
*ELAPSED TIME INOPERATIVE OR WRONG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .446
*INCORRECT AMBIENT TEMPERATURE SENSOR READING . . . . . . . . . . . . . . . . .447
*OTIS MILEAGE AND DISTANCE FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .449
*OTIS SCREEN DISPLAYS 9FAIL9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .450
*OTIS SCREEN DISPLAYS NO VALUES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .451
*OTIS SEGMENTS FAIL TO LIGHT UP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .452
*OTIS SWITCH TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .453
POWER DOOR LOCKS/RKE
DECKLID RELEASE SOLENOID OUTPUT FAILURE . . . . . . . . . . . . . . . . . . . . . . . . .454
DECKLID RELEASE SWITCH FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .457
DRIVER DOOR CENTRAL LOCK (ARM)/UNLOCK (DISARM) SWITCH FAILURE . .459
PASSENGER DOOR CENTRAL LOCK (ARM)/UNLOCK (DISARM) SWITCH
FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .461
RKE PROGRAM MODE ENTERED WITHOUT PROGRAM REQUEST . . . . . . . . . . .463
RKE UNABLE TO ENTER PROGRAM MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .464
*ALL DOORS FAILING TO LOCK AND UNLOCK FROM ANY SWITCH. . . . . . . . . . .465
*ALL DOORS FAILING TO LOCK AND UNLOCK FROM ONE SWITCH . . . . . . . . . .471
*ALL DOORS FAILING TO LOCK FROM ANY SWITCH . . . . . . . . . . . . . . . . . . . . . . .474
*ALL DOORS FAILING TO LOCK FROM ONE SWITCH . . . . . . . . . . . . . . . . . . . . . . .477
*ALL DOORS FAILING TO UNLOCK FROM ANY SWITCH. . . . . . . . . . . . . . . . . . . . .478
*ALL DOORS FAILING TO UNLOCK FROM ONE SWITCH . . . . . . . . . . . . . . . . . . . .481
*AUTOMATIC (ROLLING) DOOR LOCKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .482
*DOOR LOCK INHIBIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .483
*DRIVER FRONT DOOR FAILING TO LOCK FROM ANY SWITCH . . . . . . . . . . . . . .485
*DRIVER FRONT DOOR FAILING TO UNLOCK FROM ANY SWITCH . . . . . . . . . . .486
*INOPERATIVE DECKLID RELEASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .488
*ONE DOOR FAILING TO LOCK AND UNLOCK FROM ANY SWITCH . . . . . . . . . . .490
*REMOTE KEYLESS ENTRY PROBLEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .494
*RKE HORN CHIRP INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .495
SPEED
SPEED
SPEED
SPEED
PRO
PRO
PRO
PRO
STEERING
STEERING CKT SHORT TO VOLTAGE . . . . . . . . . . . . . . . . . . . . . . . . .496
STEERING SOLENOID CKT OPEN/SHORTED TO GROUND . . . . . . .498
STEERING SOLENOID OVER-TEMPERATURE . . . . . . . . . . . . . . . . . .501
VEHICLE THEFT/SECURITY
*ALARM TRIPS ON ITS OWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .503
*HEADLAMP/PARK LAMPS FAIL TO FLASH WITH ALARM TRIPPED . . . . . . . . . . .504
*HORN FAILS TO SOUND WITH ALARM TRIPPED . . . . . . . . . . . . . . . . . . . . . . . . . .505
*VTSS INDICATOR INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .506
*VTSS INDICATOR LAMP STAYS ON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .507
*VTSS WILL NOT ARM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509
WINDSHIELD WIPER & WASHER
HEADLAMP WASHER MOTOR NOT OPERATING PROPERLY . . . . . . . . . . . . . . . . .510
WIPER PARK SWITCH FAILURE/WIPERS RUN CONTINUOUSLY . . . . . . . . . . . . . .514
*WASHER, INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .516
*WASHER, RUNS ALL THE TIME WITH IGNITION ON. . . . . . . . . . . . . . . . . . . . . . . .519
ix
TABLE OF CONTENTS - Continued
*WIPER,
*WIPER,
*WIPER,
*WIPER,
*WIPER,
*WIPER,
NOT WORKING IN THE LOW SPEED . . . . . . . . . . . . . . . . . . . . . . . . . . . . .520
ERRATIC OPERATION IN INTERMITTENT SPEEDS . . . . . . . . . . . . . . . . .522
NO WIPE AFTER WASH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .524
NOT WORKING AT ALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .525
NOT WORKING IN THE HIGH SPEED . . . . . . . . . . . . . . . . . . . . . . . . . . . . .530
RUNS ALL THE TIME WITH IGNITION ON. . . . . . . . . . . . . . . . . . . . . . . . . .533
VERIFICATION TESTS
VERIFICATION TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .535
8.0
COMPONENT LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .541
8.1
8.2
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
8.10
8.11
8.12
8.13
AIRBAG SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .541
AUDIO SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .543
8.2.1 COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .543
AUDIO SYSTEM (Continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .544
8.2.2 ANTENNA MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .544
8.2.3 AMPLIFIER (INFINITY 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .544
8.2.4 AMPLIFIER (INFINITY 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .545
COMMUNICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .545
8.3.1 SENTRY KEY IMMOBILIZER MODULE (SKIM) . . . . . . . . . . . . . . . . . .546
ELECTRICALLY HEATED SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .546
8.4.1 SWITCHES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .546
8.4.2 HEATED SEAT MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .547
HEATING AND A/C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .547
8.5.1 ACTUATORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .547
8.5.2 AUTOMATIC TEMPERATURE CONTROL HEAD . . . . . . . . . . . . . . . . .547
8.5.3 MANUAL TEMPERATURE CONTROL HEAD . . . . . . . . . . . . . . . . . . . .548
INSTRUMENT CLUSTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .548
8.6.1 CHRYSLER (TYPICAL). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .548
8.6.2 DECKLID AJAR SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .548
8.6.3 FUEL PUMP MODULE (HARNESS CONNECTOR)-C308 . . . . . . . . . .548
8.6.4 BRAKE FLUID LEVEL SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .549
8.6.5 PARKING BRAKE SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .549
8.6.6 WASHER FLUID LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .549
INTERIOR LIGHTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .550
8.7.1 HEADLINER CONNECTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .550
8.7.2 DOOR AJAR SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .550
MEMORY SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .550
8.8.1 MEMORY SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .550
8.8.2 MEMORY MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .551
8.8.3 MEMORY SEAT MOTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .551
OVERHEAD TRAVEL INFORMATION SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . .551
8.9.1 OTIS MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .551
8.9.2 HEADLINER CONNECTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .552
POWER DOOR LOCKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .552
8.10.1 DOOR LOCK MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .552
8.10.2 RKE MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .552
SPEED PROPORTIONAL STEERING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .553
8.11.1 SOLENOID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .553
8.11.2 CONNECTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .553
VEHICLE THEFT SECURITY SYSTEM (VTSS) . . . . . . . . . . . . . . . . . . . . . . . . .553
WIPER SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .554
x
TABLE OF CONTENTS - Continued
8.13.1 WIPER MOTOR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .554
8.13.2 WASHER RESERVOIR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .554
8.13.3 HEADLAMP WASHER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .554
9.0
CONNECTOR PINOUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .555
A/C COMPRESSOR CLUTCH - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .555
A/C PRESSURE TRANSDUCER - GRAY 4 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . .555
AMBIENT TEMPERATURE SENSOR - 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .555
AUTOMATIC TEMPERATURE CONTROL HEAD - BLACK 12 WAY . . . . . . . . . . . . . .556
BLEND DOOR ACTUATOR - BLACK 5 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .556
BLOWER MOTOR POWER MODULE - BLACK 4 WAY. . . . . . . . . . . . . . . . . . . . . . . .556
BLOWER MOTOR RESISTOR BLOCK - BLACK 6 WAY . . . . . . . . . . . . . . . . . . . . . . .556
BODY CONTROL MODULE C1 - GRAY 14 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . .557
BODY CONTROL MODULE C2 - BLACK 24 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . .557
BODY CONTROL MODULE C3 - WHITE 12 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . .557
BODY CONTROL MODULE C4 - BLUE 16 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . .558
BRAKE LAMP SWITCH - GRAY 6 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .558
BRAKE PRESSURE SWITCH - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .558
C202 (MTC) - WHITE (I/P HARNESS SIDE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .558
C202 (MTC) - NATURAL (HVAC HARNESS SIDE) . . . . . . . . . . . . . . . . . . . . . . . . . . .559
C203 (ATC) - WHITE (I/P HARNESS SIDE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .559
C203 (ATC) - NATURAL (HVAC HARNESS SIDE) . . . . . . . . . . . . . . . . . . . . . . . . . . . .559
C308 - NATURAL (BODY SIDE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .560
C308 - NATURAL (FUEL TANK JUMPER SIDE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .560
CENTER INSTRUMENT PANEL SPEAKER - BLACK 2 WAY . . . . . . . . . . . . . . . . . . .560
CLOCKSPRING NO. 2 - YELLOW 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .560
CONTROLLER ANTI-LOCK BRAKE - 25 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .561
DATA LINK CONNECTOR - BLACK 16 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .561
DECKLID RELEASE SOLENOID/AJAR SWITCH - BLACK 3 WAY . . . . . . . . . . . . . . .561
DECKLID RELEASE SWITCH - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .562
DRIVER AIRBAG SQUIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .562
DRIVER DOOR COURTESY LAMP - BLACK 2 WAY. . . . . . . . . . . . . . . . . . . . . . . . . .562
DRIVER DOOR CYLINDER LOCK SWITCH - GRAY 2 WAY. . . . . . . . . . . . . . . . . . . .563
DRIVER DOOR LOCK MOTOR/AJAR SWITCH - BLACK 4 WAY . . . . . . . . . . . . . . . .563
DRIVER HEATED SEAT BACK - GREEN 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . .563
DRIVER HEATED SEAT BACK (SEAT BACK SIDE) . . . . . . . . . . . . . . . . . . . . . . . . . .563
DRIVER HEATED SEAT CUSHION - 4 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .564
DRIVER HEATED SEAT CUSHION (CUSHION SIDE). . . . . . . . . . . . . . . . . . . . . . . . .564
DRIVER HEATED SEAT SWITCH - RED 6 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . .564
DRIVER POWER DOOR LOCK SWITCH - NATURAL 4 WAY. . . . . . . . . . . . . . . . . . .564
DRIVER POWER MIRROR (EXCEPT MEMORY) - 3 WAY . . . . . . . . . . . . . . . . . . . . .565
DRIVER POWER MIRROR (MEMORY) - NATURAL 10 WAY . . . . . . . . . . . . . . . . . . .565
DRIVER POWER SEAT FRONT RISER MOTOR - RED 2 WAY . . . . . . . . . . . . . . . . .565
DRIVER POWER SEAT FRONT RISER MOTOR SENSOR (MEMORY) - 3 WAY . . .565
DRIVER POWER SEAT HORIZONTAL MOTOR - BLACK 2 WAY. . . . . . . . . . . . . . . .566
DRIVER POWER SEAT HORIZONTAL MOTOR SENSOR (MEMORY) - 3 WAY . . . .566
DRIVER POWER SEAT REAR RISER MOTOR - RED 2 WAY . . . . . . . . . . . . . . . . . .566
DRIVER POWER SEAT REAR RISER MOTOR SENSOR (MEMORY) - 3 WAY . . . .566
DRIVER POWER SEAT RECLINER MOTOR - GREEN 2 WAY . . . . . . . . . . . . . . . . .567
DRIVER POWER SEAT RECLINER MOTOR SENSOR (MEMORY) - 3 WAY . . . . . .567
DRIVER POWER SEAT SWITCH - BLUE 10 WAY. . . . . . . . . . . . . . . . . . . . . . . . . . . .567
DRIVER POWER WINDOW MOTOR - RED 2 WAY. . . . . . . . . . . . . . . . . . . . . . . . . . .568
xi
TABLE OF CONTENTS - Continued
DRIVER POWER WINDOW SWITCH - BLUE 12 WAY . . . . . . . . . . . . . . . . . . . . . . . .568
ENGINE COOLANT TEMPERATURE SENSOR - BLACK 2 WAY . . . . . . . . . . . . . . . .568
ENGINE OIL PRESSURE SWITCH - GREEN 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . .568
EVAPORATOR TEMPERATURE SENSOR - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . .569
FUEL PUMP MODULE - GRAY 4 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .569
HEADLAMP SWITCH - BLUE 13 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .569
HEADLAMP WASHER PUMP MOTOR (BUILT-UP-EXPORT) . . . . . . . . . . . . . . . . . . .569
HEATED MIRROR FUSE - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .570
IGNITION SWITCH - BLACK 10 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .570
INSTRUMENT CLUSTER C1 - GREEN 10 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . .570
INSTRUMENT CLUSTER C2 - BLUE 10 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .570
FUSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .572
CIRCUIT BREAKERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .572
DAYTIME RUNNING LAMP MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .572
DOOR LOCK RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .572
DOOR UNLOCK RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .572
DRIVER DOOR UNLOCK RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .573
FOG LAMP RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .573
HIGH BEAM HEADLAMP RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .573
HORN RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .573
LOW BEAM HEADLAMP RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .573
PARK LAMP RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .573
SPARE RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .573
JUNCTION BLOCK BODY CONTROL MODULE - JB . . . . . . . . . . . . . . . . . . . . . . . . .575
JUNCTION BLOCK C1 - BLACK 6 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .575
JUNCTION BLOCK C2 - GRAY 16 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .575
JUNCTION BLOCK C3 - BLUE 15 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .576
JUNCTION BLOCK C4 - GREEN 12 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .576
JUNCTION BLOCK C5 - WHITE 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .576
JUNCTION BLOCK C6 - 12 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .576
JUNCTION BLOCK C7 - 12 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .577
JUNCTION BLOCK C8 - GREEN 6 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .577
JUNCTION BLOCK C9 - ORANGE 8 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .577
LEFT FOG LAMP (300M/LHS) - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .577
LEFT FOG LAMP (DODGE) - GRAY 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .578
LEFT FRONT DOOR SAIL SPEAKER - BLACK 2 WAY. . . . . . . . . . . . . . . . . . . . . . . .578
LEFT FRONT DOOR SPEAKER - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . .578
LEFT HIGH BEAM HEADLAMP - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . .578
LEFT HORN - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .579
LEFT LOW BEAM HEADLAMP - GRAY 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .579
LEFT REAR DOOR COURTESY LAMP - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . . . .579
LEFT REAR DOOR LOCK MOTOR/AJAR SWITCH - BLACK 4 WAY. . . . . . . . . . . . .579
LEFT REAR DOOR SPEAKER - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . .580
LEFT REAR READING LAMP - 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .580
LEFT REAR SHELF SPEAKER - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . .580
LEFT SEAT AIRBAG (BUILT-UP-EXPORT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .580
LEFT SIDE IMPACT AIRBAG CONTROL MODULE (BUILT-UP-EXPORT) . . . . . . . . .581
LEFT SIDE IMPACT AIRBAG CONTROL MODULE (MODULE SIDE) . . . . . . . . . . . .581
MANUAL TEMPERATURE CONTROL HEAD C1 - WHITE 12 WAY . . . . . . . . . . . . . .581
MANUAL TEMPERATURE CONTROL HEAD C2 - BLACK 10 WAY . . . . . . . . . . . . . .581
MEMORY HEATED SEAT/MIRROR MODULE C1 - 26 WAY . . . . . . . . . . . . . . . . . . . .582
MEMORY HEATED SEAT/MIRROR MODULE C2 - 16 WAY . . . . . . . . . . . . . . . . . . . .582
MEMORY HEATED SEAT/MIRROR MODULE C3 - 12 WAY . . . . . . . . . . . . . . . . . . . .582
xii
TABLE OF CONTENTS - Continued
MEMORY HEATED SEAT/MIRROR MODULE C4 - 2 WAY . . . . . . . . . . . . . . . . . . . . .583
MEMORY SWITCH SET - 6 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .583
MODE DOOR ACTUATOR - BLACK 5 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .583
MULTI-FUNCTION SWITCH - BLACK 7 WAY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .583
OCCUPANT RESTRAINT CONTROLLER - YELLOW/RED 23 WAY. . . . . . . . . . . . . .584
OCCUPANT RESTRAINT CONTROLLER (CONTROLLER SIDE) . . . . . . . . . . . . . . .584
OUTPUT SPEED SENSOR - DK BLUE 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .584
OVERHEAD MAP/COURTESY LAMP - 3 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .585
OVERHEAD TRAVEL INFORMATION SYSTEM - BLACK 6 WAY. . . . . . . . . . . . . . . .585
PASSENGER AIRBAG - YELLOW 2 WAY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .585
PASSENGER DOOR COURTESY LAMP - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . . .585
PASSENGER DOOR CYLINDER LOCK SWITCH - GRAY 2 WAY . . . . . . . . . . . . . . .586
PASSENGER DOOR LOCK MOTOR/AJAR SWITCH - BLACK 4 WAY . . . . . . . . . . .586
PASSENGER HEATED SEAT BACK - GREEN 2 WAY . . . . . . . . . . . . . . . . . . . . . . . .586
PASSENGER HEATED SEAT BACK (SEAT BACK SIDE) . . . . . . . . . . . . . . . . . . . . . .586
PASSENGER HEATED SEAT CUSHION - BLACK 4 WAY . . . . . . . . . . . . . . . . . . . . .587
PASSENGER HEATED SEAT CUSHION (CUSHION SIDE) . . . . . . . . . . . . . . . . . . . .587
PASSENGER HEATED SEAT SWITCH - RED 6 WAY . . . . . . . . . . . . . . . . . . . . . . . . .587
PASSENGER POWER DOOR LOCK SWITCH - BLACK 4 WAY. . . . . . . . . . . . . . . . .587
PASSENGER POWER MIRROR (EXCEPT MEMORY) - 3 WAY . . . . . . . . . . . . . . . . .588
PASSENGER POWER MIRROR (MEMORY) - NATURAL 10 WAY. . . . . . . . . . . . . . .588
PASSENGER POWER SEAT FRONT RISER MOTOR - RED 2 WAY . . . . . . . . . . . .588
PASSENGER POWER SEAT HORIZONTAL MOTOR - BLACK 2 WAY . . . . . . . . . . .588
PASSENGER POWER SEAT REAR RISER MOTOR - 2 WAY . . . . . . . . . . . . . . . . . .589
PASSENGER POWER SEAT RECLINER MOTOR - GREEN 2 WAY . . . . . . . . . . . . .589
PASSENGER POWER SEAT SWITCH - BLUE 10 WAY . . . . . . . . . . . . . . . . . . . . . . .589
PASSENGER POWER WINDOW MOTOR - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . .589
PASSENGER POWER WINDOW SWITCH - BLUE 6 WAY . . . . . . . . . . . . . . . . . . . . .590
POWER AMPLIFIER C1 - WHITE 12 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .590
POWER AMPLIFIER C2 - WHITE 22 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .590
FUSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .592
A/C COMPRESSOR CLUTCH RELAY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .592
AUTOMATIC SHUT DOWN RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .592
ENGINE STARTER MOTOR RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .592
FUEL PUMP RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .592
HEADLAMP WASHER RELAY (BUILT-UP-EXPORT) . . . . . . . . . . . . . . . . . . . . . . . . . .592
HIGH SPEED RADIATOR FAN RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .593
LOW SPEED RADIATOR FAN RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .593
REAR FOG LAMP RELAY (BUILT-UP-EXPORT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .593
TRANSMISSION CONTROL RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .593
WIPER HIGH/LOW RELAY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .593
WIPER ON/OFF RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .593
POWER MIRROR SWITCH - BLACK 13 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .594
POWERTRAIN CONTROL MODULE C1 - 40 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . .594
POWERTRAIN CONTROL MODULE C2 - GRAY 40 WAY. . . . . . . . . . . . . . . . . . . . . .595
RADIO C1 - BLACK 7 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .595
RADIO C2 - GRAY 7 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .596
RADIO C3 (MIDLINE/PREMIUM) - WHITE 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . .596
REAR WINDOW DEFOGGER RELAY - NATURAL 5 WAY . . . . . . . . . . . . . . . . . . . . .596
REAR WINDOW DEFOGGER/ANTENNA MODULE - BLACK 3 WAY . . . . . . . . . . . .596
RECIRCULATION DOOR ACTUATOR - NATURAL 5 WAY . . . . . . . . . . . . . . . . . . . . .597
REMOTE KEYLESS ENTRY ANTENNA - WHITE 3 WAY . . . . . . . . . . . . . . . . . . . . . .597
RIGHT FOG LAMP (300M/LHS) - BLACK 2 WAY. . . . . . . . . . . . . . . . . . . . . . . . . . . . .597
xiii
TABLE OF CONTENTS - Continued
RIGHT FOG LAMP (DODGE) - GRAY 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .597
RIGHT FRONT DOOR SAIL SPEAKER - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . . . .598
RIGHT FRONT DOOR SPEAKER - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . .598
RIGHT HIGH BEAM HEADLAMP - BLACK 2 WAY. . . . . . . . . . . . . . . . . . . . . . . . . . . .598
RIGHT HORN - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .598
RIGHT LOW BEAM HEADLAMP - GRAY 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . .599
RIGHT REAR DOOR COURTESY LAMP - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . . .599
RIGHT REAR DOOR LOCK MOTOR/AJAR SWITCH - BLACK 4 WAY . . . . . . . . . . .599
RIGHT REAR DOOR SPEAKER - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . .599
RIGHT REAR READING LAMP - 2 WAY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .600
RIGHT REAR SHELF SPEAKER - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . .600
RIGHT SEAT AIRBAG (BUILT-UP-EXPORT). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .600
RIGHT SIDE IMPACT AIRBAG CONTROL MODULE (BUILT-UP-EXPORT). . . . . . . .600
RIGHT SIDE IMPACT AIRBAG CONTROL MODULE (MODULE SIDE) . . . . . . . . . . .600
SEAT BELT SWITCH - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .601
SENTRY KEY IMMOBILIZER MODULE - BLACK 6 WAY . . . . . . . . . . . . . . . . . . . . . .601
SPEED PROPORTIONAL STEERING SOLENOID - LT GRAY 2 WAY . . . . . . . . . . . .601
SUN SENSOR/VTSS LED - BLACK 4 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .601
TRACTION CONTROL SWITCH - NATURAL 6 WAY . . . . . . . . . . . . . . . . . . . . . . . . . .602
TRANSMISSION CONTROL MODULE - BLACK 60 WAY . . . . . . . . . . . . . . . . . . . . . .603
TRUNK KNOCK OUT SWITCH - NATURAL 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . .604
TURN SIGNAL/HAZARD SWITCH - BLACK 8 WAY. . . . . . . . . . . . . . . . . . . . . . . . . . .604
WASHER FLUID LEVEL SWITCH - GRAY 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . .604
WINDSHIELD WASHER PUMP MOTOR - BLACK 2 WAY. . . . . . . . . . . . . . . . . . . . . .604
WINDSHIELD WIPER MOTOR - BLACK 5 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . .605
10.0
SCHEMATIC DIAGRAMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .607
10.1 AIRBAG SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .607
10.2 BODY CONTROL MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .608
10.3 AUDIO SYSTEM - MIDLINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .609
10.3 AUDIO SYSTEM - PREMIUM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .610
10.3 AUDIO SYSTEM - PREMIUM 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .611
10.4 CHIME WARNING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .612
10.5 CLIMATE CONTROL - AUTOMATIC TEMPERATURE CONTROL . . . . . . . . . .613
10.5 CLIMATE CONTROL - MANUAL TEMPERATURE CONTROL . . . . . . . . . . . . .614
10.6 COMMUNICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .614
10.7 DOOR AJAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .615
10.8 EXTERIOR LIGHTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .616
10.9 INSTRUMENT CLUSTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .617
10.10 INTERIOR LIGHTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .618
10.11 MEMORY SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .619
10.12 OTIS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .620
10.13 POWER DOOR LOCKS/RKE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .621
10.14 SENTRY KEY IMMOBILIZER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .622
10.15 SPEED PROPORTIONAL STEERING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .622
10.16 VEHICLE THEFT SECURITY SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .623
10.17 WIPER SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .624
xiv
GENERAL INFORMATION
1.0
•
INTRODUCTION
•
The procedures contained in this manual include
all the specifications, instructions and graphics
needed to diagnose 2000 LH body system problems. The diagnostics in this manual are based on
the failure, condition or symptom being present at
the time of diagnosis.
Please follow the recommendations below when
choosing your diagnostic path.
1. First make sure the DRBIIIt is communicating
with the appropriate module; i.e., if the DRBIIIt
shows a 9no response9 or “Bost +/- Signal Open”
condition, you must diagnose that first.
2. Read DTC’s (diagnostic trouble codes) with the
DRBIIIt.
3. If no DTC’s are present, identify the customer
complaint.
4. Once the DTC or customer complaint is identified, locate the matching test in the Table of
Contents and begin to diagnose the symptom.
All component location views are in section 8.0.
All connector pinouts are in section 9.0.
All schematics are in section 10.0.
An * placed before the symptom description indicated a customer complaint.
When repairs are required, refer to the appropriate service manual for the proper removal and
installation procedure.
Diagnostic procedures change every year. New
diagnostic systems may be added: carry over systems may be enhanced. READ THIS MANUAL
BEFORE TRYING TO DIAGNOSE A VEHICLE
DIAGNOSTIC TROUBLE CODE. It is recommended that you review the entire manual to become familiar with all the new and changed diagnostic procedures.
This book reflects many suggested changes from
readers of past issues. After using this book, if you
have any comments or suggestions, please fill out
the form on the back of the book and mail it back to
us.
1.1
•
•
1.3
FUSES AND LIGHT BULBS
When replacing a blown fuse, it is important to
use only a fuse having the correct amperage rating.
The use of a fuse with a rating other than indicated
may result in a dangerous electrical system overload. If a properly rated fuse continues to blow, it
indicates a problem in the circuit that must be
corrected.
When replacing HALOGEN bulbs, do not touch
the new bulb with your fingers. Oil contamination
will severely shorten bulb life. If the bulb comes in
contact with an oily surface, clean the bulb with
rubbing alcohol.
2.0
IDENTIFICATION OF
SYSTEM
The vehicle systems that are part of the 9body9
system are:
•
Airbag System
•
Audio
Chimes
•
•
•
•
•
•
•
•
•
•
•
SYSTEM COVERAGE
•
•
This diagnostic procedures manual covers all
2000 Chrysler Concorde, Chrysler LHS and 300M
models.
1.2
symptom analysis
problem isolation
repair of isolated problem
verification of proper operation
•
•
•
SIX STEP TROUBLESHOOTING
PROCEDURE
Climate Control Systems (Automatic and Manual)
Door Ajar
Electrically Heated Systems
Exterior Lighting
Instrument Cluster
Interior Lighting
Memory System
Overhead Travel Information System
Power Door Locks
Remote Keyless Entry
Sentry Key Immobilizer
Speed Proportional Steering
Vehicle Communications
Vehicle Theft Security System
Wiper/Washer
3.0
Diagnosis of the body system is done in six basic
steps:
• verification of complaint
• verification of any related symptoms
SYSTEM DESCRIPTION AND
FUNCTIONAL OPERATION
The body system on the 2000 LH consists of a
combination of modules that communicate over the
PCI bus (Programmable Communication Interface
multiplex system). Through the PCI bus, informa1
GENERAL INFORMATION
the airbag system components. The impact sensor is
an accelerometer that senses the rate of vehicle
deceleration, which provides verification of the direction and severity of an impact. The impact sensor is calibrated for the specific vehicle, and is only
serviced as a unit with the ORC. The ORC also
contains an energy-storage capacitor. This capacitor stores enough electrical energy to deploy the
airbags, for two minutes following a battery disconnect or failure during an impact. The purpose of the
capacitor is to provide airbag system protection in
severe secondary impact if the initial impact has
damaged or disconnected the battery, but not severe
enough to deploy the airbags. The ORC cannot be
repaired or adjusted and, if damaged or faulty, it
must be replaced.
tion about the operation of vehicle components and
circuits is relayed quickly to the appropriate module(s). All modules receive all the information transmitted on the bus even though a module may not
require all information to perform it’s function. It
will only respond to messages 9addressed9 to it
through a binary coding process. This method of
data transmission significantly reduces the complexity of the wiring in the vehicle and the size of
wiring harnesses. All of the information about the
functioning of all the systems is organized, controlled, and communicated by the PCI bus, which is
described in the Vehicle Communication section of
this general information.
Always begin by reading the diagnostic trouble
codes using the DRB. Next, look for the symptom in
the Diagnostic Information and Procedures section
of the Table Of Content located in the front of the
book. This will direct you to the specific test(s) that
must be performed.
Important Note:
If the Powertrain Control Module has been
changed and the correct VIN and mileage have not
been programmed, a DTC will be set in the Airbag
module. In addition, if the vehicle is equipped with
a Sentry Key Immobilizer Module (SKIM), Secret
Key data must be updated to enable starting. Refer
to the 2000 LH Powertrain Diagnostic Manual for
more information. Erase codes in all modules.
3.1
WARNING: THE AIRBAG SYSTEM IS A
SENSITIVE,
COMPLEX
ELECTROMECHANICAL
UNIT.
BEFORE
ATTEMPTING TO DIAGNOSE OR SERVICE
ANY AIRBAG SYSTEM OR RELATED
STEERING WHEEL, STEERING COLUMN, OR
INSTRUMENT PANEL COMPONENTS YOU
MUST FIRST DISCONNECT AND ISOLATE
THE BATTERY NEGATIVE (GROUND) CABLE.
WAIT TWO MINUTES FOR THE SYSTEM
CAPACITOR TO DISCHARGE BEFORE
FURTHER SYSTEM SERVICE. THIS IS THE
ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO DO THIS COULD
RESULT
IN
ACCIDENTAL
AIRBAG
DEPLOYMENT AND POSSIBLE PERSONAL
INJURY. NEVER STRIKE OR KICK THE
AIRBAG CONTROL MODULE, AS IT CAN
DAMAGE THE IMPACT SENSOR OR AFFECT
ITS CALIBRATION. IF AN OCCUPANT
RESTRAINT
CONTROLLER
IS
ACCIDENTALLY
DROPPED
DURING
SERVICE,
THE
MODULE
MUST
BE
SCRAPPED AND REPLACED WITH A NEW
UNIT.
AIRBAG SYSTEM/OCCUPANT
RESTRAINT CONTROLLER SYSTEM
The Airbag System is equipped with a new type of
Airbag Control Module (ACM) called an Occupant
Restraint Controller (ORC). The ORC is secured to
a bracket on the floor panel transmission tunnel
below the instrument panel inside the vehicle. The
ORC mounting bracket also serves as the instrument panel center support. The ORC contains a
microprocessor, the impact sensor, and energy storage capacitors. The microprocessor contains the
airbag system logic. The airbag system logic includes On-Board Diagnostics OBD capability, and
communicates with the instrument cluster circuitry
on the Programmable Communication Interface
(PCI) data bus to control the airbag indicator lamp.
The microprocessor in the ORC monitors the impact
sensor signal and the airbag system electrical circuits to determine the system readiness. If the ORC
detects a monitored system fault, it sends messages
to the Mechanical Instrument Cluster (MIC) over
the PCI data bus to turn on the airbag warning
lamp. A pre-programmed decision algorithm in the
ORC microprocessor determines when the deceleration rate is severe enough to require airbag system
protection. When the programmed conditions are
met, the ORC sends an electrical signal to deploy
The airbag warning lamp is the only point at
which the customer can observe 9symptoms9 of a
system malfunction. Whenever the ignition key is
turned to the 9run9 or 9start9 position, the MIC
performs a lamp check by turning the AIRBAG
warning lamp on for 6-8 seconds. If the lamp
remains off, it means that the ORC has checked the
system and found it to be free of discernible malfunctions. If the lamp remains on, there could be an
active fault in the ORC system or the MIC lamp
circuit may be internally shorted to ground.
2
GENERAL INFORMATION
3.1.1
DRIVER AIRBAG MODULE (DAB)
to which the cushion and inflator are attached and
sealed. The airbag module cannot be repaired, and
must be replaced if deployed or in any way damaged. The inflator assembly is mounted to the back
of the airbag module. The inflator includes a small
canister of highly compressed argon gas. The inflator seals the hole in the airbag cushion so it can
discharge the compressed gas it contains directly
into the cushion when supplied with the proper
electrical signal. The airbag door has a living hinge
at the top, which is secured to the instrument panel
top cover. The door also has predetermined breakout lines concealed beneath its decorative cover.
Upon airbag deployment, the airbag door will split
at the breakout lines and the door will pivot out of
the way.
The airbag protective trim cover is the most
visible part of the driver side airbag system. The
module is mounted directly to the steering wheel.
Located under the trim cover are the horn switch,
the airbag cushion, and the airbag cushion supporting components. The airbag module includes a
housing to which the cushion and inflator are
attached and sealed. The airbag module cannot be
repaired, and must be replaced if deployed or in any
way damaged. The inflator assembly is mounted to
the back of the airbag module. The inflator seals the
hole in the airbag cushion so it can discharge the
gas it produces directly into the cushion when
supplied with the proper electrical signal. The protective trim cover is fitted to the front of the airbag
module and forms a decorative cover in the center of
the steering wheel. Upon airbag deployment, this
cover will split at a predetermined breakout line.
THE AIRBAG MODULE INFLATOR ASSEMBLY CONTAINS SODIUM AZIDE AND POTASSIUM NITRATE. THESE MATERIALS ARE
POISONOUS AND EXTREMELY FLAMMABLE. CONTACT WITH ACID, WATER, OR
HEAVY METALS MAY PRODUCE HARMFUL
AND IRRITATING GASES (SODIUM HYDROXIDE IS FORMED IN THE PRESENCE
OF MOISTURE) OR COMBUSTIBLE COMPOUNDS. DO NOT PUNCTURE, INCINERATE, OR BRING INTO CONTACT WITH ELECTRICITY.
DO
NOT
STORE
AT
TEMPERATURE EXCEEDING 93°C (200° F).
3.1.2
WARNING: THE PASSENGER AIRBAG
MODULE
CONTAINS
ARGON
GAS
PRESSURIZED TO OVER 2500 PSI. DO NOT
ATTEMPT TO DISMANTLE AN AIRBAG
MODULE OR TAMPER WITH ITS INFLATOR.
DO NOT PUNCTURE, INCINERATE, OR
BRING INTO CONTACT WITH ELECTRICITY.
DO NOT STORE AT TEMPERATURE
EXCEEDING 93°C (200°F). REPLACE AIRBAG
SYSTEM COMPONENTS ONLY WITH PARTS
SPECIFIED IN THE CHRYSLER MOPAR
PARTS CATALOG. SUBSTITUTE PARTS MAY
APPEAR
INTERCHANGEABLE,
BUT
INTERNAL DIFFERENCES MAY RESULT IN
INFERIOR OCCUPANT PROTECTION. THE
FASTENERS,
SCREWS,
AND
BOLTS
ORIGINALLY USED FOR THE AIRBAG
SYSTEM COMPONENTS HAVE SPECIAL
COATINGS
AND
ARE
SPECIFICALLY
DESIGNED FOR THE AIRBAG SYSTEM. THEY
MUST NEVER BE REPLACED WITH ANY
SUBSTITUTES. ANY TIME A NEW FASTENER
IS NEEDED, REPLACE IT WITH THE
CORRECT FASTENERS PROVIDED IN THE
SERVICE PACKAGE OR SPECIFIED IN THE
CHRYSLER MOPAR PARTS CATALOG.
CLOCKSPRING
The clockspring is mounted on the steering column behind the steering wheel. This assembly
consists of a plastic housing which contains a flat,
ribbon-like, electrically conductive tape that winds
and unwinds with the steering wheel rotation. The
clockspring is used to maintain a continuous electrical circuit between the instrument panel wire
harness and the driver side airbag module, the horn
switch, and the vehicle speed control switches on
vehicles that are so equipped. The clockspring must
be properly centered when it is installed on the
steering column following any service removal, or it
will be damaged. The clockspring cannot be repaired it must be replaced.
3.1.3
SIDE IMPACT AIRBAG CONTROL MODULES
The 2000 LH uses two identical side impact
airbag control modules (SIACM) that share the
same part number. They are located on the left and
right B-post with the connector pointed forward.
For proper PCI bus operation each SIACM must
have a unique module identification. To provide the
unique module identification the SIACM software
looks for a ground on cavity # 5. If cavity # 5 is
grounded the SIACM communicates as a left SIACM otherwise it communicates as a right SIACM.
The SIACM perform self diagnostics and circuit
PASSENGER AIRBAG MODULE
(PAB)
The airbag door in the instrument panel top cover
above the glove box is the most visible part of the
passenger side airbag system. Located under the
airbag door is the airbag cushion and it’s supporting
components. The airbag module includes a housing
3
GENERAL INFORMATION
VICE PACKAGE OR SPECIFIED IN THE
CHRYSLER MOPAR PARTS CATALOG.
tests to determine if the system is functioning
properly. If the test find a problem the SIACM will
set both active and stored diagnostic trouble codes.
If a DTC is active the SIACM will request that the
airbag warning lamp be turned on. The results of
the system test are transmitted on the PCI Bus to
the ORC once each second or on change in lamp
state. If the warning lamp status message from the
either SIACM contains a lamp on request the ORC
will set an active DTC. At the same time as the DTC
is set the ORC sends a PCI Bus message to the
mechanical instrument cluster (MIC) requesting
the airbag warning lamp be turned on. Observe all
ORC warning and caution statements when servicing or handling the SIACM. SIACM are not repairable and must be replaced if they are dropped.
3.1.4
3.1.5
ACM/ORC/SIACM DIAGNOSTIC
TROUBLE CODES
Airbag diagnostic trouble codes consist of active
and stored codes. If more than one code exists,
diagnostic priority should be given to the active
codes.
Each diagnostic trouble code is diagnosed by
following a specific testing procedure. The diagnostic test procedures contain step-by-step instructions
for determining the cause of the trouble codes. It is
not necessary to perform all of the tests in this book
to diagnose an individual code.
Active diagnostic trouble codes for the airbag
system are not permanent and will change the
moment the reason for the code is corrected. In
certain test procedures within this manual, diagnostic trouble codes are used as a diagnostic tool.
SEAT AIRBAG MODULES
The Left and Right seat airbag modules are
located in the outboard end of the front seat backs.
The airbag module contains a bag, an inflator (a
small canister of highly compressed argon gas) and
a mounting bracket. The seat airbag module cannot
be repaired and must be replaced if deployed or in
any way damaged. When supplied with the proper
electrical signal the inflator seals the hole in the
airbag cushion so it can discharge the compressed
gas it contains directly into the cushion. Upon
deployment, the seat back trim cover will tear open
and allow the seat airbag to fully deploy between
the seat and the door.
Note: It will be necessary to remove the seat
back trim to gain access to the seat airbag
module connector when diagnosing the seat
airbag system.
THE SEAT AIRBAG MODULE CONTAINS
ARGON GAS PRESSURIZED TO OVER 2500
PSI. DO NOT ATTEMPT TO DISMANTLE AN
AIRBAG MODULE OR TAMPER WITH ITS
INFLATOR. DO NOT PUNCTURE, INCINERATE, OR BRING INTO CONTACT WITH ELECTRICITY. DO NOT STORE AT TEMPERATURE EXCEEDING 93°C (200°F). REPLACE
AIRBAG SYSTEM COMPONENTS ONLY
WITH PARTS SPECIFIED IN THE CHRYSLER
MOPAR PARTS CATALOG. SUBSTITUTE
PARTS MAY APPEAR INTERCHANGEABLE,
BUT INTERNAL DIFFERENCES MAY RESULT IN INFERIOR OCCUPANT PROTECTION. THE FASTENERS, SCREWS, AND
BOLTS ORIGINALLY USED FOR THE AIRBAG SYSTEM COMPONENTS HAVE SPECIAL
COATINGS AND ARE SPECIFICALLY DESIGNED FOR THE AIRBAG SYSTEM. THEY
MUST NEVER BE REPLACED WITH ANY
SUBSTITUTES. ANY TIME A NEW FASTENER
IS NEEDED, REPLACE IT WITH THE CORRECT FASTENERS PROVIDED IN THE SER-
3.1.5.1
ACTIVE CODES
The code becomes active as soon as the malfunction is detected or key-off, whichever occurs first.
An active trouble code indicates an on-going malfunction. This means that the malfunction is currently there every time the airbag control module
checks that circuit/function. It is impossible to erase
an active code; active codes automatically erase by
themselves when the reason for the code has been
corrected.
With the exception of the warning lamp trouble
codes or malfunctions, when a malfunction is detected, the airbag lamp remains lit for a minimum
of 12 seconds or as long as the malfunction is
present.
An 9Interrogate Right SIACM or Interrogate left
SIACM9 diagnostic trouble code indicates an active
trouble code in the respective module.
3.1.5.2
STORED CODES
Airbag codes are automatically stored in the
ORC’s memory as soon as the malfunction is detected. A 9stored9 code indicates there was an active
code present at some time. However, the code currently may not be present as an active code, although another active code could be.
When a trouble code occurs, the airbag warning
lamp illuminates for 12 seconds minimum (even if
the problem existed for less than 12 seconds). The
code is stored, along with the time in minutes it was
active, and the number of times the ignition has
been cycled since the problem was last detected.
The minimum time shown for any code will be one
minute, even if the code was actually present for
less than one minute. Thus, the time shown for a
4
GENERAL INFORMATION
output thru a single DIN cable. All features you
would expect, such as Disc Up/Down, Track Up/
Down, Random and Scan are controlled by the
radio, which also displays all relevant CD-changer
information on the radio display.
The CD-changer contains a Load/Eject button
and an indicator light for each of the four disc
positions. The individual light indicates whether a
CD is currently loaded in that particular chamber of
the CD-changer. Pressing the individual Load/Eject
button for a particular chamber will eject a disc
currently present in that chamber. If the chamber is
currently empty, actuating the Load/Eject button
will position that chamber to receive and load a new
disc in that chamber.
code that was present for two minutes 13 seconds,
for example, would be three minutes.
If a malfunction is detected a diagnostic trouble
code is stored and will remain stored as long as the
malfunction exists. When and if the malfunction
ceases to exist, an ignition cycle count will be
initiated for that code. If the ignition cycle count
reaches 100 without a reoccurrence of the same
malfunction, the diagnostic trouble code is erased
and that ignition cycle counter is reset to zero. If the
malfunction reoccurs before the count reaches 100,
then the ignition cycle counter will be reset and the
diagnostic trouble code will continue to be a stored
code.
If a malfunction is not active while performing a
diagnostic test procedure, the active code diagnostic
test will not locate the source of the problem. In this
case, the stored code can indicate an area to inspect.
If no obvious problems are found, erase stored
codes, and with the ignition 9on9 wiggle the wire
harness and connectors, rotate the steering wheel
from stop to stop. Recheck for codes periodically as
you work through the system. This procedure may
uncover a malfunction that is difficult to locate.
3.2
3.3
BODY CONTROL MODULE
The body control module (BCM) supplies vehicle
occupants with visual and audible information and
controls various vehicle functions. To provide and
receive information, the module is interfaced to the
vehicle’s serial bus communications network (the
Programmable Communication Interface or PCI
bus). This network consists of the powertrain control module (PCM), the memory heat seat/mirror
module (MHSMM), sentry key immobilizer module
(SKIM), the transmission control module (TCM),
the electro/mechanical instrument cluster (MIC),
the optional overhead travel information system
(OTIS), airbag control module (ACM), optional antilock brakes (ABS), the radio, remote CD-player
and the optional automatic temperature control
(ATC) display head. The (BCM) is operational when
battery power is supplied to the module, ignition
switch power is needed for ignition switched functions.
The body control module provides the following
features:
Automatic headlamp and fog lamp
A/C switch status/evaporator temperature status
BCM diagnostic support
Central lock and unlock (VTSS only)
Climate Control (Automatic and Manual) system
support
Door ajar switch status
Door Lock Inhibit (key in ignition or headlamps/
park lamps on)
Electronic Odometer Support
Fog Lamp Control
Headlamp multiplexing control
Headlamp, Park & tail lamps with battery save
feature
Headlamp Time Delay
Illuminated Entry with 9fade to off9
Interior lighting with battery save feature
Mechanical Instrument Cluster (fuel level, dim
data, odometer & warning chime) support
AUDIO SYSTEM
There are two radio systems available that communicate on the PCI bus. They are, midline (RBY)
and Infinity II (RBY + RDW) or (RAD + RDW)
models. They use the bus for two reasons. First is to
communicate trouble codes to the body control module, the second is for use with the driver memory
selection system. The radio stores two sets of station presets and can be recalled by pressing the
optional memory select button (located on the drivers door). The midline (RBY) will have 6 speakers
and a 120 watt external amplifier. The Infinity II
(RBY + RDW) or (RAD + RDW) will have 9 speakers
and a 360 watt external amplifier with indash
4-disk CD Player. Depending on the manufacturer,
some systems have a front/rear channel system and
others have a left/right channel system.
The new in-dash CD-changer is designed to fit
into the existing cubby bin in the center stack. This
new cartridge-less CD-changer is controlled by your
radio, and allows you to individually load up to four
discs at one time. However, due to its compact
design, the CD-changer can only carry out one
operation at a time. For example, you can not load
a new disc while playing another at the same time.
Each operation happens sequentially.
The radio unit installed with your system provides control over all features of the CD-changer
with the exception of the CD load and eject functions, which are controlled by buttons located on the
front of the CD-changer. The radio also supplies the
power, ground, PCI Bus, left and right speaker
5
GENERAL INFORMATION
Memory system (LHS and 300M)
Overhead travel information system
Power door lock multiplexing control
Rear Window Defogger Control
Remote Keyless Entry with Panic Mode
Remote power deck lid release
Rolling door lock control (customer programmable)
Sentry key immobilizer
Speed proportional steering
Vehicle Theft Security System
Wiper Control (speed sensitive with return to
park)
The BCM receives information over the PCI Bus
from the PCM in order to support certain features.
The required information is as follows:
• Engine RPM
•
Engine Temperature
•
Injector on Time and Distance Pulses
•
Vehicle Speed
Charging System Failure, Engine Temperature
Limp-In, VTSS Arming Status
• Engine Model
• 9Check Engine9 lamp status
The BCM provides the PCM with information on
the A/C switch status, battery temperature which is
determined by the ambient temperature sensor and
the 9OK to Start9 or VTSS status.
The LH has several customer programmable features which can be disabled or enabled by the
customer.
•
FEATURE
DEFAULT
PROGRAMMING METHOD
FEEDBACK
Rolling Door
Locks
Enabled
Close all doors
Place vehicle key in the ignition and cycle
between off and run four times ending in
the off position
Customer depresses the driver power door
lock switch to lock the doors
Body Controller will toggle the enable/
disable state of rolling locks
BCM provides a single
chime to indicate completion of the pro-gramming
RKE-Horn
Chirp
Enabled
Continually press the lock button for a
minimum of 4 seconds to a maximum of
10 seconds
Within the 4-10 second range, press the
unlock button while continuing to press
the lock button
Release both buttons
Body Controller will toggle on/off state of
horn chirp feature
None
RKE-Rear
Release Toggle
Press Twice
Continually press the unlock button for a
minimum of 4 seconds to a maximum of
10 seconds
Within the 4-10 second range, press the
rear release button while continuing to
press the unlock buttons
Release both buttons
RKE will toggle state of one press/two
press rear release
6
GENERAL INFORMATION
FEATURE
DEFAULT
PROGRAMMING METHOD
FEEDBACK
RKE - Program New
FOB (Using
an already
programmed
FOB)
Not Applicable
Turn vehicle ignition switch on.
With programmed FOB continually press
the unlock button for a minimum of 4 seconds to a maximum of 10 seconds
Within the 4-10 second range, press the
panic button while continuing to press the
unlock button
Release both buttons
Press any button of FOB(s) to be Learned.
(Note: RKE system erases all FOBs when
program mode is entered So any existing
FOBs must also be Programmed.
BCM will sound a second
chime when programming
mode is started
BCM will sound a second
chime after each FOB has
been learned, a 32 second
time out period has
elapsed, or the vehicle ignition has been turned off
Turn off ignition or wait for
32 seconds to exit seconds
to exit programming mode
7
GENERAL INFORMATION
3.4
CHIME SYSTEM
Internal problems in the body control module will
set other short- related codes. Having only stall
trouble codes indicates that there is a problem with
an open or short circuit in the wiring, a bad actuator, a bad HVAC unit door or connecting linkage. It
is important that the operation of the HVAC door be
checked if an actuator is removed. This can be
checked by rotating each unit door shaft to confirm
that the door will stop at both ends of travel. The
actuator itself has no stops. It must have the HVAC
unit door to stop travel to pass a stall test.
A feedback signal failure can occur on the blend
or mode door. The body control module monitors the
feedback signal to check the position of the actuator.
The body control module not only checks the level of
the signal but also how much the voltage changes.
A feedback failure can occur if there is a short or
open circuit in the wiring, a bad actuator, a bad
body control module, a bad HVAC unit door or
connecting linkage. The easiest way to diagnose
this is to use the DRB to actuate the blend or mode
door. Note that the feedback voltage of the actuator
should smoothly change as the actuator is moved. A
sudden change in the feedback voltage to a 5.0-volt
or a 0.0-volt level indicates the actuator is bad. A
fixed feedback voltage that is less than 5.0 volts or
greater than 0.0 volts without a stall failure, or a
short failure indicates that the actuator, the HVAC
unit door, or a connecting mechanical linkage is
jammed thereby preventing movement. A feedback
signal voltage that stays on 5.0 volts or 0.0 volts
indicates a wiring or body control module problem.
The feedback voltage should always be less than 5.0
volts and greater than 0.0 volts.
The feedback trouble code can also occur from
lack of actuator travel. This can be checked by
confirming that the feedback signal smoothly
changes when the actuator is moved with the DRB.
If the signal is OK, the door travel is not correct.
The actuator must be removed and the HVAC unit
door mechanically checked for proper operation.
Typical problems that prevent door movement include screws dropped in the HVAC unit or warped
doors. Replace any part that is found defective.
The chime system is comprised of an audible
chime located internal to the BCM; and is dependent on various inputs to the BCM to operate. These
inputs include key-in ignition switch, exterior
lamps, seat belt switch, and requests from the MIC
to chime when some indicators are turned on.
3.5
3.5.1
CLIMATE CONTROL SYSTEM
AUTOMATIC TEMPERATURE
CONTROL (ATC)
The body control module (BCM) provides for
automatic temperature control support both
through PCI bus communications and through processing inputs to determine control for actuators
and the blower motor. The BCM interfaces with the
ATC control head over the PCI bus. Information on
button activation, blower setting, and temperature
setting are supplied to the BCM. In turn, the BCM
supplies the ATC control head with mode information and indication lamp status. The BCM controls
blower motor speed by providing a varying duty
cycle of a fixed frequency output (pulse width modulation). There are 14 distinct blower speeds, plus a
blower off signal. The body control module also
controls the HVAC mode, temperature (blend air),
and recirculation doors. This system is either fully
automatic or fully manual control (no semiautomatic functions); however, the temperature
blend door control is always automatically controlled based on sensor reading and comfort setting.
The in-car sensor and the aspirator motor are now
housed in the ATC control head.
3.5.2
MANUAL TEMPERATURE CONTROL
The body control module interfaces with the a/cheater control head via hardwired circuits. Information for the temperature setting is supplied to
the body control module via a potentiometer. The
rear defogger switch, A/C switch and the mode
setting is supplied via a resistive multiplexed circuit. The system on/off status is supplied by a
dedicated circuit. The BCM drives the A/C and rear
defogger indicator lamps via hardwire to the A/Cheater control head.
3.5.3
3.5.4
REAR WINDOW DEFOGGER
When the BCM receives a rear defogger request
from the climate control head (either ATC or manual) the BCM will activate the rear window defogger relay for 15 minutes. If the BCM receives
another rear defogger request while the relay is still
activated, the relay will be de-activated. If the relay
is allowed to time out (full 15 minutes), further
requests during the same ignition on period will
cause the BCM to activate the relay for 7.5 minutes
HVAC BLEND, MODE, AND
RECIRCULATION DOOR OPERATION
The trouble codes that indicate a stall failure or a
feedback signal failure work together to show what
is wrong with the HVAC system. The stall trouble
codes mean that the body control module cannot
force an actuator to the end of the HVAC unit door.
8
GENERAL INFORMATION
3.6
3.6.1
EXTERIOR LIGHTING SYSTEM
vehicle, if the lock button is pressed with a door
open, illuminated entry will cancel when the door
closes. If the doors are closed and the ignition
switch is turned on, the illuminated entry also
cancels.
EXTERIOR LIGHTING BATTERY
SAVER
3.8
The BCM monitors the status of and controls the
park lamp, head lamp and fog lamp relay’s. If any
exterior lamps are left on after the ignition is
turned off, the BCM will turn the headlamps and
fog lamps off after 10 minutes, the park lamps will
remain on.
3.6.2
The instrument cluster displays four gauges, a
vacuum fluorescent (VF) odometer, a VF PRNDL
and up to (18) indicators. One reset button is used
to switch the display from trip to total. Holding the
button when the display is in the trip mode will
reset the trip mileage. The cluster also supplies the
power for the panel illumination. Most of the information that is displayed is received over the PCI
bus from several modules.
With ignition in 9lock9, the cluster will wake up
and display the door ajar and odometer display
when a door is opened. The cluster will also wake up
to control the panel illumination. In 9off9 (unlock)
the PRNDL and several indicators will be functional but all gauges will not function. On transition
from 9off9 (unlock) to run, the cluster will perform a
check of all micro-controlled indicators, the odometer and the PRNDL for approx. 2 seconds. Other
bulb checks with longer bulb check duration will be
performed based on bus messages from other modules. If the cluster receives no PCI bus messages for
(20) seconds after the transition to 9run9, the cluster
will display 9no bus9 in the odometer.
A self test can be initiated by holding down the
odometer reset button and switching the ignition
from 9lock9 to 9off9 (unlock). This test will activate
the gauges, turn on the indicator lights along with
the odometer and PRNDL segments.
HEADLAMP DELAY
The headlamp time delay operates when the
ignition switch is turned off while the headlamps
are still on, and the headlamps are then turned off
within 45 seconds after the ignition is off. This will
provide a 90-second time delay before turning off
the headlamps.
3.6.3
HEADLAMP SWITCH
The headlight switch on LH vehicles use a multiplexed (MUX) circuit to the BCM. The BCM will
then control the park lamp, head lamp and fog lamp
relay’s based on this input.
3.6.4
FOG LAMP CONTROL
The body control module controls the operation of
the fog lamp relay which controls the fog lamps. The
fog lamps can only be on if the park or low beam
headlamps are on. If the high beams are turned on,
the fog lamps will remain on.
3.7
3.7.1
INTERIOR LIGHTING
3.9
COURTESY LAMP CONTROL
MEMORY SYSTEM
The memory system consists of power left front
seat, power mirrors and radio presets. The memory
heated seat/mirror module (MHSMM) also includes
the heated seat function. The module is located
under the left front seat and receives input from:
left manual 8-way seat switch, left seat position
sensors, memory switch, both heated seat switches,
both heated seat negative temperature coefficients
[NTC’s] thermistors), PCI bus circuits, and the
power mirror sensors. The module uses these inputs to perform the following functions: position the
drivers memory seat, both exterior mirrors, actuate
the drivers and passenger heated seat heater and
send the memory location over the PCI bus.
When a memory button is pressed (either # 1 or
# 2) on the memory switch the MHSMM sends a
message to the BCM which in turn sends a recall
message to the MHSMM and the PCI radio. They
will in turn position the drivers seat and both
The body controller has direct control over the
majority of the vehicle’s courtesy lamps. The body
computer will illuminate the courtesy lamps under
any of the following conditions:
1) Any door is ajar.
2) The courtesy lamp switch on the instrument
panel is closed.
3) A Remote Keyless entry unlock message is
received. If the interior lamps are left on after the
ignition is turned off, the BCM will turn them off
after 1 hour or until either the dome lamp switch or
door ajar switch changes state.
3.7.2
MECHANICAL INSTRUMENT CLUSTER
ILLUMINATED ENTRY
Illuminated entry will be initiated when the customer enters the vehicle by unlocking the doors
with the key fob, or with the key if the vehicle is
equipped with vehicle theft alarm. Upon exiting the
9
GENERAL INFORMATION
can also be done using the DRB which will also
inform as to which state it is in.
mirrors along with setting the radio presets. If the
drivers seat or either exterior mirrors are inoperative from their own respected switches, use the
service information and schematic to diagnose the
problem. This manual addresses the memory problems only and it is assumed there is not a basic
component failure.
3.9.1
3.9.3
The module provides guard bands which prevent
the seat track from hitting the hard limits of the
given seat axis during manual power seat operation. The guard band values for each hard limit are
stored in EEPROM. The guard band can be bypassed by running the seat to the end of its travel
and then releasing the switch and pressing it again.
The seat will move a short distance further. Once
the seat is past the guard band it can be stored in
memory, but if recall is initiated the seat will move
to the guard bands and no further.
POWER SEAT
The memory power seat provides the driver with
2 position settings for the left seat. Each power seat
motor is connected to the MHSMM with two circuits. Each circuit is switched between battery and
ground. By alternating the circuits the MHSMM
controls the movement of the motors based on input
from the power seat switch or through memory
recall.
Each motor contains a potentiometer to monitor
the seat position. To monitor the position of the
motor, the MHSMM sends out a 5-volt reference on
the sensor supply circuit. The sensor is grounded
back to the module on a common ground circuit.
Based on the position of the sensor, the MHSMM
monitors the voltage change through the sensor on
a separate signal circuit.
The MHSMM stores the input value of each of the
four seat potentiometers in memory when the system is requested. The driver can initiate memory
recall, using either the seat mounted memory
switch or the RKE transmitter. When initiated, the
MHSMM adjusts the four seat motors to match the
memorized seat position data.
For safety, the memory seat recall is disabled by
the MHSMM when the vehicle is out of park position. Any obstruction to seat movement over a 2
second delay will cause the seat to stop moving in
which case a stalled motor would be detected by the
MHSMM which would then flag a trouble code and
the corresponding seat output would be deactivated. However, if the object obstructing the seat is
removed, the seat will function normally again.
3.9.2
GUARD BANDS
3.9.4
MEMORY MIRRORS
Each outside mirror has a vertical and a horizontal position sensor. The MHSMM provides a 5-volt
reference to each position sensor. The sensors share
a common ground circuit. The MHSMM monitors
the position of the mirrors by measuring the voltage
of each signal. When a memory position is set, the
MHSMM monitors and stores the position of the
outside mirrors. The MHSMM adjusts the mirrors
to the appropriate positions when a memory recall
message is received from the RKE or is requested
from the memory switch.
The power mirror switch during non-memory
operation operates both mirrors independently of
the MHSMM.
3.9.5
HEATED SEATS
The controls for the heated seats are located on
the side of each seat. The system offers two seat
temperature settings of approximately 37°C (98.6 F)
(LO) and approximately 42°C (107.6 F) (HI).
As the temperature in the seat rises, the Negative
Temperature Coefficient (NTC) resistance decreases and the voltage reading detected by the
MHSMM increases. The seat heater output is deactivated once the voltage reading reaches it’s upper
threshold for either setting, high or low.
As the temperature decreases, the voltage reading decreases until the lower threshold is reached
for either setting high or low. At this point the seat
heat output is activated once again and this cycle
repeats itself as long as the seat heat request is on.
The thresholds for low and high settings are preprogrammed into the MHSMM memory.
The heated seat switch contain resistors pulled
up to ignition which are processed by the MHSMM
as voltage readings indicating desired heat setting
high or low.
MEMORY SEAT GLIDE
The intent of this feature is to allow for easier
entry and exit to the vehicle by moving the seat
rearward a short distance when the operator turns
the ignition off. The seat returns to its original
position when the operator returns and turns on the
ignition or extends the seat belt. If any seat movement is initiated, whether manual or by memory
recall, after the ignition has been turned off, that
will cancel any ensuing glide to enter movement
until the next ignition cycle.
This feature can be enabled/disabled by the
owner by holding the memory set button and simultaneously pressing the horizontal rearward switch.
To reinstate the feature, repeat the process. This
10
GENERAL INFORMATION
3.10
OVERHEAD TRAVEL INFORMATION
SYSTEM (OTIS)/HOMELINK
initialization. These dashes will be replaced by
valid information if and when it is received from the
bus.
The overhead travel information system (OTIS)
gives the driver information that supplements the
primary gauge instrumentation. OTIS displays this
information on a vacuum fluorescent display (VFD).
The OTIS module has four switch inputs. The
buttons for these switches are integral to the OTIS
housing. There are two buttons on each side of the
OTIS. The buttons are labeled US/M, C/T; STEP,
and RESET. The driver selects and resets display
functions through the use of these four buttons. The
OTIS will display these functions:
Compass/Temperature
AVE ECO Average Fuel Economy
ECO Instantaneous Fuel Economy
DTE Distance to Empty
ET Elapsed Time
ODO Trip Odometer
If the vehicle is equipped with the optional
Homelink feature, the OTIS will have three buttons
located in the center of the OTIS module. The OTIS
module receives all of its information over the PCI
bus except compass, which is internal to the OTIS
module. The OTIS powers up when it recognizes
vehicle voltage on the ignition input circuit. OTIS
blanks the display, then illuminates all segments of
the VFD. It then blanks the display again. During
this time, the OTIS sends and receives information
over the PCI bus to determine what to display after
the two-second initialization. The OTIS displays
dashes --- -) for any of the screens for which it did
not receive bus messages during the two-second
3.10.1
SETTING THE COMPASS
The compass in the OTIS module is selfcalibrating and requires no manual adjustment. If
calibration is required, the word CAL will be displayed to indicate that the compass is in the fast
calibrating mode. 9CAL9 will turn off after the
calibration is completed, only if the OTIS/
HOMELINK System is not located within a high
strength magnetic field.
3.10.2
SETTING THE COMPASS VARIANCE
Variance is the difference between north and
geographic north. To determine the variance for the
area you are in, refer to the zone map below and
follow the instructions provided on the this page.
The number shown for your area is the variance
number for your area.
1. With ignition on, use the C/T button to select the
Compass/Temperature display.
2. Press and hold the RESET button for 5 seconds
(but less than 10 seconds). OTIS displays the
last variance zone and the word VAR. All other
display segments are off.
3. Use the STEP button to select the proper variance zone number (1-15). Each variance zone
represents a 4-degree shift in magnetic variation
from central zone 8, which has no variation from
true north.
11
GENERAL INFORMATION
Automatic (rolling) Door Locks - This feature
can be enabled or disabled by using either the DRB
or the customer programmable method. When enabled, all doors will lock when the vehicle reaches a
speed of 24 kmh (15 mph) and all doors are closed.
If a door is opened and the vehicle slows to below 24
kmh (15 mph), the locks will operate again once all
doors are closed and the speed is above 24 kmh (15
mph).
Decklid Release - Decklid release is now a function of the body control module. Trouble codes are
provided to assist in the diagnosis of this system.
Customer programmable features are: Horn
chirp, one or two press decklid release, programming a new transmitter (using a previously programmed transmitter) and rolling door locks.
4. After selecting the proper variance zone number,
press the RESET switch. The new variance zone
is then set and the OTIS will resume normal
operation.
If further problems with the compass are encountered, see the appropriate service manual.
3.11
POWER DOOR LOCK SYSTEM
The door lock switches provide a variable amount
of voltage through the multiplexed (MUX) circuit to
the BCM. Depending upon that input and various
conditions that must be met (i.e. door lock inhibit,
etc.), the BCM will determine the action to be taken
and activate the proper relay for approximately 250
to 350 msec. If the vehicle is equipped with the
vehicle theft security system it will have the central
locking feature which locks and unlocks all doors
from the door key cylinder switches. These switches
are on separate multiplexed circuits to the BCM
and have trouble codes relating to each of them.
RKE Remote Keyless Entry - This feature
allows locking and unlocking of the vehicle door(s)
by remote control using a hand-held transmitter
(sometimes referred to as a fob) to activate a radio
receiver (RKE module). This module now plugs into
the body control module which is directly connected
to the junction block. With this feature RKE can
now be added to a non-equipped vehicle by installing a module. If the vehicle is equipped with the
vehicle theft security system, RKE will also arm
and disarm that system. A 4-button transmitter is
used which provides lock, unlock, decklid release
and panic features. Decklid release is only operable
while the vehicle is in the park position. The module
is capable of retaining up to 4 transmitter codes.
Rolling code, which increases security, has been
added this year. If the transmitter goes out of
synchronization it is easily put back in by pressing
the lock button when the transmitter is within
range. An external antenna has been added which
plugs into the module to provide greater range.
RKE will also turn on the interior lamps when a
valid unlock command is received and will extinguish the interior lamps when a lock command is
received and all doors are closed.
On a vehicle equipped with the memory system,
when the unlock button on a specified transmitter
(either #1 or #2) is pressed the BCM will send a
recall message to both the MHSMM and the PCI
radio. They will in turn position the driver seat and
both mirrors along with setting the radio presets.
Door Lock Inhibit - When the key is in the
ignition and the driver front door is open, all door
lock switches are disabled. The unlock switches are
still functional. This protects against locking the
vehicle with the keys still in the ignition.
3.12
SENTRY KEY IMMOBILIZER SYSTEM
(SKIS)
The SKIS is an immobilizer system designed to
prevent unauthorized vehicle operation. The system consists of a Sentry Key Immobilizer Module
(SKIM) and ignition key(s) called Sentry Key(s)
which are equipped with a transponder chip. The
SKIM communicates over the Programmable Communication Interface multiplex system (PCI) bus
network to the Body Control Module (BCM), Powertrain Control Module (PCM), and/or the DRB
scan tool. For programming the Sentry Key Transponder and other technical information refer to the
Powertrain Diagnostic Manual.
3.13
SPEED PROPORTIONAL STEERING
The Speed Proportional Steering, used on LHS
vehicles only, features automatically adjusted steering effort based on the vehicle speed. The amount of
effort required to turn the steering wheel is determined by a 500-Hz Pulse Width Modulated (PWM)
output signal. The desired duty cycle of the PWM is
selected from a calibration table internal to the
Body Control Module (BCM).
To obtain the desired solenoid current the duty
cycle of the solenoid can be compensated according
to a current measuring feedback circuit. The speed
proportional steering system is always active with
the ignition on.
The 500Hz PWM output signal is capable of
generating a duty cycle from 0% (full off - minimum
steering assist) to approximately 50% duty cycle
(full on - maximum steering assist) in small increments. The duty cycle is determined by vehicle
speed and is continuously modified by solenoid
current feedback information. With the engine running and vehicle speed between 0 km/h (0 mph) and
approximately 32 km/h (20 mph) the duty cycle will
be about 50%. Between approximately 32 km/h (20
12
GENERAL INFORMATION
transmitter/receiver (or transceiver) and Logic control, bus termination for loading and filtering the
bus, and wiring which interconnects the system.
Because of the unique coding scheme used in the
PCI bus, each module is required to have logic
control. The data moving on the bus is called
symbols. The interface logic performs the following
functions: encode and decodes binary data into
symbols, synchronizes all bus symbol timing and
edges, controls the sending and receiving of messages, monitors for bus arbitration, monitors for
corrupted symbols due to noise and controls the
transceiver.
The bus logic control also provides the transceiver
with the information it needs to transmit symbols
on the bus. The transceiver controls the waveshaping of each symbol that it transmits by using
internal voltage controlled current drivers. When
the bus transceiver is turned on, the bus driver
ramps up the voltage to the set range and maintains this voltage until the driver is turned off, at
which time the voltage is ramped back down to the
low voltage, ground. The transceiver is designed to
allow for arbitration between modules. If more than
one module is trying to access the PCI bus at one
time, the code determines the message that has the
higher priority, and is then allowed to access the
bus first.
The PCI bus requires a resistance and capacitance termination load to ground to operate. Because each bus transceiver can only source current
to the bus, the resistance load is required to sink
this current and pull the bus to ground on the
falling edge of the symbols. The bus resistance is
minimum of 315 ohms to a maximum of 2 K ohms.
The termination capacitance is required for noise
filtering and to help in the symbol wave shaping.
The bus capacitance shall not be greater then
12,000 pf.
Each module on the PCI bus has a small termination load of a parallel resistance and capacitor to
make up part of the over all bus termination load.
One or two modules on the PCI bus may have a
higher load termination to provide stabilizing influence over the variations of vehicle builds. These
modules, called dominant modules, may very for car
line to car line. The Powertrain Control Module
(PCM) is the only dominant node for this vehicle.
Each module provides its own bias and termination in order to transmit and receive messages. The
bus voltage is at zero volts when no modules are
transmitting and is pulled up to about seven and a
half volts when modules are transmitting. The bus
messages are transmitted at a rate averaging 10800
bits per second. Since there is only voltage present
when the modules transmit, and the message
length is only about 500 milliseconds, it is ineffective to try and measure the bus activity with a
mph) and 100 km/h (60 mph) the duty cycle will
gradually decrease to 0% based upon vehicle speed.
Above approximately 100 km/h (60 mph) there is no
assist provided by the speed proportional steering
system. Maximum solenoid current will be limited
to one amp but the system operates at about 0.5
amp. Speed Proportional Steering Solenoid resistance is 5.7-6.3 ohms at 20°C (68°F).
The Speed Proportional Steering System can detect three failure modes relating to the Speed Proportional Steering PWM driver located in the BCM.
If any DTC is set, the solenoid is shut off, unless the
condition goes away before approximately 10 seconds. Once the DTC is set, the solenoid will remain
off for the remainder of the ignition cycle.
1. An open or shorted to ground circuit fault is
detected by monitoring the feedback circuit. If
the BCM detects that the feedback circuit has
zero current when the software indicates the
solenoid circuit should have current, the DTC
will be set. This test is performed every 250
milliseconds.
2. A short to voltage fault is detected by monitoring
the feedback circuit. The DTC will be set when
the BCM has sensed that there was current on
the solenoid feedback circuit when the solenoid
was turned off.
3. An over temperature or thermal shutdown DTC
will be set by default if the internal diagnostic
pin of the solenoid driver is at a low level, but the
feedback measurement does not show a high
PWM output current.
3.14
VEHICLE COMMUNICATION
The Chrysler Programmable Communication Interface multiplex system (PCI bus) consists of a
single wire. The Body Control Module (BCM) acts
as a splice to connect each module and the Data
Link Connector (DLC) together. Each module is
wired in parallel to the data bus through its PCI
chip set and uses its local ground as the bus
reference. The wiring is a minimum 20 gage. The
PCI bus wire insulation color will be yellow with a
violet tracer. An extra tracer color may be added
along with the violet to help distinguish between
different node connections.
The bus is designed to handle a maximum number of nodes to meet all of the bus load and timing
requirements. The bus resistance and capacitance
is designed to provide a maximum level of filtering
without distorting the bus symbols. This is why
extra capacitance and resistance should not be
added to the PCI Data Bus circuitry.
In order for an electronic control module to communicate on the PCI data bus, the module must
have bus interface electronics consisting of a
13
GENERAL INFORMATION
conventional voltmeter. The preferred method is to
use DRBIIIt lab scope. The 12v square wave selection on the 20-volt scale provides a good view of the
bus activity. Voltage on the bus should pulse between zero and about seven and a half volts. Refer
to figure 1 for some typical displays.
Bus communication failure include a short to
ground or to voltage on any PCI Bus circuit. Individual module no response can be caused by an open
circuit at the BCM or at the module, or an open
battery or ground circuit to the affected module.
Symptoms of a complete PCI Bus communications failure would include but are not limited to:
• All gauges on the MIC stay at zero
•
All Telltales on MIC illuminated
• MIC backlighting at full intensity
• No response received from any module on the PCI
Bus through the DRB
• No start (if equipped with sentry key immobilizer
system)
Symptoms of individual module failure could include any one or more of the above. The difference
would be that at least one or modules would respond to the DRB.
Diagnosis starts with symptom identification. If a
complete PCI Bus failure is suspected, begin by
identifying which modules the vehicle is equipped
with and then attempt to get a response from the
modules with the DRB. If any modules (except
PCM) are responding, the failure is not related to
the total bus, but can be caused by one or more
modules PCI Bus circuit or power supply and
ground circuits. The DRB may display 9BUS +/SIGNAL OPEN9 or 9NO RESPONSE9 to indicate a
communication problem. These same messages will
be displayed if the vehicle is not equipped with that
particular module. The CCD error message is a
default message used by the DRB and in no way
indicates whether or not the PCI Bus is operational.
The message is only an indication that a module is
either not responding or the vehicle is not equipped
with that particular module.
NOTE: Communication over the bus is essential
to the proper operation of the vehicles on-board
diagnostic systems and the DRB. Problems with the
operation of the bus or DRB must be corrected
before proceeding with diagnostic testing. If there is
a problem, refer to the Communications category of
this manual.
3.14.1
BUS FAILURE MESSAGE
Odometer Displays (No Bus( - The Mechanical
Instrument Cluster (MIC) cannot communicate
over the bus and does not know why.
3.15
VEHICLE THEFT SECURITY SYSTEM
This passive system is designed to protect against
vehicle theft. The vehicle theft security system
(VTSS) is part of the body control module, which
monitors vehicle doors and the ignition for unauthorized operation. The alarm activates by sound-
The PCI Bus failure modes are broken down into
two categories. PCI Bus Communication Failure
and individual module no response. Causes of a PCI
14
GENERAL INFORMATION
ing the horn, flashing the headlamps, park and tail
lamps, and the VTSS indicator lamp. Passive arming occurs upon normal vehicle exit by turning the
ignition off, opening the driver’s door, locking the
doors with the power lock, and closing the driver’s
door or locking the doors with RKE. Manual arming
occurs by using the key to lock the doors after
closing them. The indicator lamp on the dash will
flash for 15 seconds, showing that arming is in
progress. If no monitored systems are activated
during this period, the system will arm and the
indicator will flash at a slow rate. If the indicator
lamp remains steadily lit during the arming process, this can indicate a possible loss of communication with the PCM or loss of trunk knock out
switch. When something triggers the alarm, the
system will signal the headlamps, park lamps, and
horn for about 3 minutes.
For complaints about the Theft Alarm going off on
it’s own use the DRB and select 9Theft Alarm9 then
9Monitor Display9 and read the 9Alarm Tripped By9
status.
Tamper Alert - The VTSS indicator lamp will
flash twice quickly to indicate a tamper condition
has occurred.
Manual Override - The system will not arm if
the doors are locked using the manual lock control
(by hand) or if the locks are actuated by an inside
occupant after the door is closed.
To verify the system, proceed as follows:
NOTE: A powertrain control module from a vehicle equipped with a vehicle theft security system
cannot be used in a vehicle that is not equipped
with a vehicle theft security system. If the VTSS
indicator lamp comes on after ignition ON and stays
on, the PCI bus communication with the powertrain
control module possibly has been lost.
3.16
WIPER SYSTEM
The wiper system provides the driver with the
normal wiper (low and high speeds), intermittent
wipe, wipe after wash, headlamp washers and pulse
wipe functions. The driver selects the wiper function via the resistive multiplexed stalk switch
mounted on the steering column. The BCM uses
input signal from the wiper stalk switch, wiper
motor park switch, headlamp switch and the
washer switch to control the wipe system. The Body
Control Module (BCM) then controls the relays and
timing functions to provide the driver selected features.
3.16.1
SYSTEM FEATURES
Speed Sensitive Intermittent Wipe Mode
There are 6 individual delay times with a minimum delay of 1/2 second to a maximum of 18
seconds. When the vehicle speed is under 6 KMH
(10 MPH), the delay time is doubled providing a
range of 1 second to 36 seconds.
Pulse Wipe
When the wiper is in the off position and the
driver presses the wash button for more than 62
milliseconds, but less than 1/2 second, 2 wipe cycle
in low speed mode will be provided.
Park after Ignition Off
Because the wiper relays are powered from the
battery the BCM can run the wipers to park after
the ignition is turned off.
ipe after Wash
When the driver presses the wash button for over
1/2 second and then releases it, the wiper will
continue to run for 2 additional wipe cycles.
Headlamp Washers
The BCM will actuate the headlamp washer relay
output for 750ms whenever the windshield washer
is activated and the headlamps are on. The headlamp washers will be activated only for 750ms and
then turned off even if the wash switch remains
pressed. The headlamp washers will then be disabled until the wash switch is released and inactive
for 5 continuous seconds. The headlamp washers
will not be activated when the wiper pulse wipe
mode is used.
The wiper system utilizes the BCM to control the
on/off and hi/low relays for low and hi speed wiper
functions, intermittent wiper delay as the switch
position changes, pulse wipe, wipe after wash mode,
1. Open the driver’s door.
2. Remove the ignition key (but keep it in hand).
3. Lock the doors with the power lock switch or the
RKE.
4. Close the driver’s door.
NOTE: After the doors are closed, locking the
doors with RKE will also arm the system.
NOTE: If the VTSS indicator lamp flashed, the
system is operational and verified. If not, there may
be a problem with the system.
Arming/Disarming - Active arming occurs when
the remote keyless entry transmitter is used to lock
the vehicle doors, whether the doors are open or
closed. If one or more doors are open, the arming
sequence is completed only after all doors are
closed.
Passive disarming occurs upon normal vehicle
entry (unlocking either front door with the key).
This disarming also will halt the alarm once it has
been activated.
Active disarming occurs when the remote keyless
entry transmitter is used to unlock the vehicle
doors. This disarming also will halt the alarm once
it has been activated.
System Self-Tests - NOTE: System self-tests
can be entered only with the DRB.
15
GENERAL INFORMATION
tery
ORC, Passenger Squib #1 Circuit Shorted to
Ground
ORC, Vehicle Body Style Unknown
ORC, Warning Lamp open
ORC, Warning Lamp shorted
ORC, Interrogate Left SIACM
ORC, Interrogate Right SIACM
ORC, No Left SIACM Message
ORC, No Right SIACM Message
ORC, Not Cofigured For SAB
and wiper motor park functions. The BCM uses the
vehicle speed input to double the usual delay time
below 6 KMH (10 MPH).
3.17
DIAGNOSTIC TROUBLE CODES
INFORMATION
3.17.1
OCCUPANT RESTRAINT
CONTROLLER TROUBLE CODES
The Occupant Restraint Controller may report
any of the following diagnostic trouble codes. For
the following codes, replace the Occupant Restraint
Controller (ORC) even if set intermittently:
LEFT SIDE IMPACT AIRBAG CONTROL MODULE:
Left
Left
Left
Left
Left
Left
OCCUPANT RESTRAINT CONTROLLER:
ORC ACCELEROMETER
ORC FIRING STORED ENERGY
ORC INTERNAL # 1
ORC INTERNAL # 2
ORC OUTPUT DRIVER # 1
ORC OUTPUT DRIVER # 2
Right
Right
Right
Right
Right
Right
SIACM Accelerometer # 1
SIACM Accelerometer # 2
SIACM Internal # 1
SIACM Output Driver # 1
Loss of Ignition Run/Start
No PCI Transmission
Seat Squib Circuit Open
Seat Squib Circuit Shorted
Seat Squib Shorted to Battery
Seat Squib Shorted to Ground
AUDIO TROUBLE CODES
Radio Error
CD Error
Cassette Error
Radio Diming Shorted High
Shorted Front Channel
Shorted Rear Channel
Shorted Left Channel
Shorted Right Channel
CD Mechanical Failure
CD Temperature High
CD Temperature Low
CD Play Failure
CD Read Failure
SIACM Accelerometer # 1
SIACM Accelerometer # 2
SIACM Internal # 1
SIACM Output Driver # 1
For these codes, refer to the table of contents procedure:
ORC,
ORC,
ORC,
ORC,
ORC,
ORC,
ORC,
ORC,
ORC,
ORC,
ORC,
ORC,
ORC,
ORC,
ORC,
SIACM,
SIACM,
SIACM,
SIACM,
SIACM,
SIACM,
3.17.2
RIGHT SIDE IMPACT AIRBAG CONTROL MODULE:
Right
Right
Right
Right
Loss of Ignition Run/Start
No PCI Transmission
Seat Squib Circuit Open
Seat Squib Circuit Shorted
Seat Squib Shorted to Battery
Seat Squib Shorted to Ground
RIGHT SIDE IMPACT AIRBAG CONTROL MODULE:
LEFT SIDE IMPACT AIRBAG CONTROL MODULE:
Left
Left
Left
Left
SIACM,
SIACM,
SIACM,
SIACM,
SIACM,
SIACM,
Calibration Mismatch
Cluster Message Mismatch
Driver Squib # 1 Circuit Open
Driver Squib # 1 Circuit Shorted
Driver Squib # 1 Circuit Shorted To Battery
Driver Squib # 1 Circuit Shorted To Ground
Loss of Iginition Run Only
Loss of Ignition Run/Start
Loss of Ignition Run/Start w/SIACM
No Cluster Messages
No Odometer Messages
No PCI Communication
Passenger Squib #1 Circuit Open
Passenger Squib #1 Circuit Shorted
Passenger Squib #1 Circuit Shorted to Bat-
3.17.3
BODY CONTROL MODULE
DIAGNOSTIC TROUBLE CODES
A/C Control Blend Door Input Open Or Shorted
to ground
A/C Control Blend Door Input Shorted to Battery
A/C Control EBL Switch Failure
A/C Control Mode Door Input Open Or Shorted to
Battery
A/C Control Mode Door Input Shorted to Ground
ATC Messages Not Received
16
GENERAL INFORMATION
3.17.5
ATC Switch Failure
Ambient Temperature Sensor Failure
Battery Power to Module Disconnected
Blend Door Feedback Failure
Blend Door Output Shorted to Battery
Blend Door Output Shorted to Ground
Blend Door Stall Test Failure
Common Output Shorted to Battery
Common Output Shorted to Ground
Courtesy Lamp Output Short to Battery
Decklid Release Motor Output Failure
Decklid Release Switch Failure
Dimming Level Switch Input Failure
EATX Bus Communication Failure
EEPROM Constant Checksum Failure
Evaporator Temperature Sensor Failure
Fuel Level Sending Unit Failure
Headlamp Switch Input Failure
I/P Illumination Failure
In-Car Temperature Sensor Failure
Internal Base/Premium Select Failure
Dr Central Lock (arm)/Unlock (disarm) Switch
Failure
MHSMM Messages Not Received
MIC Messages Not Received
Mode Door Feedback Failure
Mode Door Output Shorted to Battery
Mode Door Output Shorted to Ground
Mode Door Stall Test Failure
OTIS Messages Not Received
Post Failure
RKE Unable to Enter Program Mode
RKE Program Mode Entered Without Program
Request
Recirc Door Output Shorted to Battery
Recirc Door Output Shorted to Ground
Recirculation Door Test Failure
Pass Central Lock (arm)/unlock (disarm) Switch
Failure
SBEC Bus Communication Failure
SKIM Messages Not Received
Speed Proportional Steering Circuit Open or
Shorted to Ground
Speed Proportional Steering Circuit Shorted to
Voltage
Speed Proportional Steering Solenoid Over Temperature
Sun Load Sensor Failure
Wiper Park Switch Failure
3.17.4
No
No
No
No
No
EEPROM Refresh Failure
Front Riser Sensor Out of Range High
Front Riser Sensor Out of Range Low
Front Riser Down Position Stuck
Front Riser Up Position Stuck
Horizontal Sensor Out of Range High
Horizontal Forward Position Stuck
Horizontal Sensor Out of Range Low
Horizontal Rearward Position Stuck
Ignition Status Message Not Received
Driver Thermistor Out of Range High
Driver Thermistor Out of Range Low
Driver Heated Seat Switch Open/Shorted to
Ground
Driver Heated Seat Switch Stuck in High State
Driver Heated Seat Switch Stuck in Low State
Driver Mirror Veritcal Sensor Out of Range High
Driver Mirror Vertical Sensor Out of Range Low
Driver Mirror Horizontal Sensor Out of Range
High
Driver Mirror Horizontal Sensor Out of Range
Low
Driver Seat Heat Output Shorted to Ground
Driver Seat Heat Output Open
Memory Set 9S9 Position Stuck
Memory Position #2 Stuck
Memory Position #1 Stuck
PRNDL Display Message Not Received
Rear Riser Down Position Stuck
Rear Riser Up Position Stuck
Rear Riser Sensor Out of Range Low
Rear Riser Sensor Out of Range High
Recliner Down Position Stuck
Recliner Up Position Stuck
Recliner Sensor Out of Range Low
Recliner Sensor Out of Range High
Passenger Heated Seat Switch Open/Shorted to
Ground
Passenger Thermistor Out of Range Low
Passenger Thermistor Out of Range High
Passenger Heated Seat Switch Stuck in High
State
Passenger Heated Seat Switch Stuck in Low
State
Passenger Seat Heat Output Shorted to Ground
Passenger Seat Heat Output Open
Passenger Mirror Horizontal Sensor Out of
Range Low
Passenger Mirror Horizontal Sensor Out of
Range High
Passenger Mirror Vertical Sensor Out of Range
Low
Passenger Mirror Vertical Sensor Out of Range
High
INSTRUMENT CLUSTER DTC’S
Messages
Messages
Messages
Messages
Messages
MEMORY HEATED SEAT MIRROR
MODULE
From ABS
From AECM
From BCM
From EATX
From SBEC
17
GENERAL INFORMATION
3.18
USING THE DRB
3.21
Refer to the DRB user guide for instructions and
assistance with reading trouble codes, erasing trouble codes, and other DRB functions.
3.19
DISPLAY IS NOT VISIBLE
Low temperatures will affect the visibility of the
display. Adjust the contrast to compensate for this
condition.
DRBIII ERROR MESSAGES
Under normal operation, the DRB will display
one of only two error messages:
user-requested WARM Boot or User -Requested
COLD Boot
This is a sample of such an error message display:
ver:2.14
date: 26 Jul 93
file: key _iff.cc
date: Jul26 1993
line: 548
err: Oxi
User-Requested COLD boot
Press MORE to switch between this display
and the application screen.
Press F4 when done noting information.
3.20
4.0
DRBIII DOES NOT POWER UP
(BLANK SCREEN)
If the LED’s do not light or no sound is emitted at
start up, check for loose cable connections or a bad
cable. Check the vehicle battery voltage (data link
connector cavity 16). A minimum of 11 volts is
required to adequately power the DRB. Check for
proper grounds at DLC cavities 4 and 5.
If all connections are proper between the DRB
and the vehicle or other devices, and the vehicle
battery is fully charged, an inoperative DRB may be
the result of a faulty cable or vehicle wiring.
4.1
DISCLAIMERS, SAFETY,
WARNINGS
DISCLAIMERS
All information, illustrations, and specifications
contained in this manual are based on the latest
information available at the time of publication.
The right is reserved to make changes at any time
without notice.
4.2
4.2.1
SAFETY
TECHNICIAN SAFETY INFORMATION
WARNING: ENGINES PRODUCE CARBON
MONOXIDE THAT IS ODORLESS, CAUSES
SLOWER REACTION TIME, AND CAN LEAD
TO SERIOUS INJURY. WHEN THE ENGINE IS
OPERATING, KEEP SERVICE AREAS WELL
VENTILATED OR ATTACH THE VEHICLE
EXHAUST SYSTEM TO THE SHOP EXHAUST
REMOVAL SYSTEM.
Set the parking and block the wheels before
testing or repairing the vehicle. It is especially
important to block the wheels on front-wheel drive
vehicles; the parking brake does not hold the drive
wheels.
When servicing a vehicle, always wear eye protection, and remove any metal jewelry such as
18
GENERAL INFORMATION
* Ohms cannot be measured if voltage is present.
Ohms can be measured only in a non-powered
circuit.
rings, watchbands or bracelets that might make an
inadvertent electrical contact.
When diagnosing a chassis system problem, it is
important to follow approved procedures where
applicable. These procedures can be found in this
General Information Section or in service manual
procedures. Following these procedures is very important to the safety of individuals performing
diagnostic tests.
4.2.2
•
•
•
VEHICLE PREPARATION FOR
TESTING
•
Make sure the vehicle being tested has a fully
charged battery. If it does not, false diagnostic codes
or error messages may occur.
4.2.3
•
SERVICING SUB-ASSEMBLIES
•
Some components of the chassis system are intended to be serviced as an assembly only. Attempting to remove or repair certain system subcomponents may result in personal injury and/or
improper system operation. Only those components
with approved repair and installation procedures in
the service manual should be serviced.
4.2.4
•
•
•
•
•
•
DRBIIIT SAFETY INFORMATION
Volts
0 - 500 peak volts AC
0 - 500 volts DC
Ohms (resistance)*
0 - 1.12 megohms
Frequency Measured
Frequency Generated
0 - 10 kHz
Temperature
-58 - 1100°F
-50 - 600°C
WARNINGS
VEHICLE DAMAGE WARNINGS
Before disconnecting any control module, make
sure the ignition is ‘‘off ’’. Failure to do so could
damage the module.
When testing voltage or continuity at any control
module, use the terminal side (not the wire end) of
the connector. Do not probe a wire through the
insulation, this will damage it and eventually cause
it to fail because of corrosion. Be careful when
performing electrical tests so as to prevent accidental shorting of terminals. Such mistakes can damage fuses or components. Also, a second code could
be set, making diagnosis of the original problem
more difficult.
To avoid electrical shock, do not touch the test
leads, tips, or the circuit being tested.
Choose the proper range and function for the
measurement. Do not try voltage or current measurements that may exceed the rated capacity.
Do not exceed the limits shown in the table below:
INPUT LIMIT
When using the meter function, keep the
DRBIIIt away from spark plug or coil wires to
avoid measuring error from outside interference.
4.3.1
Follow the vehicle manufacturer’s service specifications at all times.
Do not use the DRBIIIt if it has been damaged.
Do not use the test leads if the insulation is
damaged or if metal is exposed.
FUNCTION
When measuring current, connect the meter in
series with test lead.
Disconnect the live test lead before disconnecting
the common test lead.
4.3
WARNING: EXCEEDING THE LIMITS OF THE
DRBIIIT MULTIMETER IS DANGEROUS. IT
CAN EXPOSE YOU TO SERIOUS OR
POSSIBLY FATAL INJURY. CAREFULLY
READ AND UNDERSTAND THE CAUTIONS
AND THE SPECIFICATION LIMITS.
•
Voltage between any terminal and ground must
not exceed 500v DC or 500v peak AC.
Use caution when measuring voltage above 25v
DC or 25v AC.
Use the low current shunt to measure circuits up
to 10A. Use the high current clamp to measure
circuits exceeding 10A.
When testing for the presence of voltage or current, make sure the meter is functioning correctly. Take a reading of a known voltage or
current before accepting a zero reading.
4.3.2
ROAD TESTING A COMPLAINT
VEHICLE
Some complaints will require a test drive as part
of the repair verification procedure. The purpose of
the test drive is to try to duplicate the diagnostic
code or symptom condition.
19
GENERAL INFORMATION
CAUTION: BEFORE ROAD TESTING A
VEHICLE,
BE
SURE
THAT
ALL
COMPONENTS
ARE
REASSEMBLED.
DURING THE TEST DRIVE, DO NOT TRY TO
READ THE DRBIIIT SCREEN WHILE IN
MOTION. DO NOT HANG THE DRB FROM
THE REAR VIEW MIRROR OR OPERATE IT
YOURSELF.
HAVE
AN
ASSISTANT
AVAILABLE TO OPERATE THE DRBIIIT.
5.0
6.0
GLOSSARY OF TERMS
ABS
ACM
AECM
ASDM
ATC
BCM
CAB
DAB
REQUIRED TOOLS AND
EQUIPMENT
DLC
DTC
DR
EBL
DRBIIIt (diagnostic read-out box)
Jumper Wires
Ohmmeter
Voltmeter
Sentry Key Tester
Test Light
HVAC
data link connector
diagnostic trouble code
driver
electric back lite (rear window defogger)
heater ventilation, air conditioning
MHSMM
MIC
MTC
OBD
ODO
memory heated seat mirror module
mechanical instrument cluster
manual temperature control
on board diagnostics
odometer
ORC
OTIS
occupant restraint controller
overhead travel information system
PAB
PASS
PCI
PCM
passenger airbag
passenger
Programmable Communication Interface (vehicle communication bus)
powertrain control module
PDC
PRO
PWM
RKE
power distribution center
proportional
pulse width modulated
remote keyless entry
SIACM
SKIM
side impact airbag control module
sentry key immobilizer module
SKIS
SQUIB
sentry key immobilizer system
also called initiator (located in rear
of airbag module)
transmission control module
vacuum fluorescent display
vehicle theft security system
TCM
VFD
VTSS
20
antilock brake system
airbag control module
airbag electronic control module
(ACM)
airbag system diagnostic module
(ACM)
automatic temperature control
body control module
controller antilock brake
driver airbag
7.0
DIAGNOSTIC INFORMATION AND
PROCEDURES
21
AIRBAG
Symptom List:
LEFT SIACM ACCELEROMETER # 1 (ACTIVE)
LEFT SIACM ACCELEROMETER # 1 (STORED)
LEFT SIACM ACCELEROMETER # 2 (ACTIVE)
LEFT SIACM ACCELEROMETER # 2 (STORED)
LEFT SIACM INTERNAL # 1 (ACTIVE)
LEFT SIACM INTERNAL # 1 (STORED)
LEFT SIACM OUTPUT DRIVER # 1 (ACTIVE)
LEFT SIACM OUTPUT DRIVER # 1 (STORED)
LEFT SIACM, LOSS OF IGNITION RUN/START (ACTIVE)
LEFT SIACM, NO PCI TRANSMISSION (ACTIVE)
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be LEFT SIACM ACCELEROMETER
# 1 (ACTIVE).
When Monitored and Set Condition:
LEFT SIACM ACCELEROMETER # 1 (ACTIVE)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
LEFT SIACM ACCELEROMETER # 1 (STORED)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
LEFT SIACM ACCELEROMETER # 2 (ACTIVE)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
LEFT SIACM ACCELEROMETER # 2 (STORED)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
LEFT SIACM INTERNAL # 1 (ACTIVE)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
LEFT SIACM INTERNAL # 1 (STORED)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
22
AIRBAG
LEFT SIACM ACCELEROMETER # 1 (ACTIVE) —
Continued
LEFT SIACM OUTPUT DRIVER # 1 (ACTIVE)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
LEFT SIACM OUTPUT DRIVER # 1 (STORED)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
LEFT SIACM, LOSS OF IGNITION RUN/START (ACTIVE)
When Monitored: With the ignition in the run/start position the ORC monitors the Fused
Ignition Switch Output Run/Start circuit for proper system voltage. This is an active
trouble code only.
Set Condition: If the voltage on the Fused Ignition Switch Output Run/Start circuit is
below 4.0 volts, the code will set.
LEFT SIACM, NO PCI TRANSMISSION (ACTIVE)
When Monitored: With the ignition in the On position and the ORC transmitting
information on the PCI BUS.
Set Condition: The code will set if the ORC cannot detect the ORC transmitting
information on the PCI BUS for 5 consecutive seconds. NOTE: Any PCI Bus Failure will
cause this code to set.
POSSIBLE CAUSES
LEFT SIDE IMPACT AIRBAG CONTROL MODULE, ACTIVE/STORED CODE
TEST
ACTION
APPLICABILITY
1
Warning: Turn Ignition Off. Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Left Side Impact Airbag Control Module is dropped at any
time, it must be replaced.
If there are no potential causes remaining, replace the Left Side Impact Airbag
Control Module.
View repair options.
All
Repair
Replace the Left Side Impact Airbag Control Module (LSIACM) in
accordance with Service Instructions. WARNING: Make sure the
battery is disconnected and wait 2 minutes before proceeding.
Errase DTC8s in the ORC and Right SIACM.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
23
AIRBAG
Symptom List:
LEFT SIACM, NO PCI TRANSMISSION (STORED)
LEFT SIACM, SEAT SQUIB CIRCUIT OPEN (STORED)
LEFT SIACM, SEAT SQUIB CIRCUIT SHORTED (STORED)
LEFT SIACM, SEAT SQUIB SHORT TO BATTERY (STORED)
LEFT SIACM, SEAT SQUIB SHORTED TO GROUND (STORED)
ORC, INTERROGATE LEFT SIACM (STORED)
ORC, NO LEFT SIACM MESSAGE (STORED)
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be LEFT SIACM, NO PCI TRANSMISSION (STORED).
When Monitored and Set Condition:
LEFT SIACM, NO PCI TRANSMISSION (STORED)
When Monitored: With the ignition in the On position and the ORC transmitting
information on the PCI BUS.
Set Condition: The code will set if the ORC cannot detect the ORC transmitting
information on the PCI BUS for 5 consecutive seconds. NOTE: Any PCI Bus Failure will
cause this code to set.
LEFT SIACM, SEAT SQUIB CIRCUIT OPEN (STORED)
When Monitored: When the ignition is On, the Left SIACM monitors the Left Seat Squib
circuits for high resistance.
Set Condition: The Left SIACM has detected an open circuit or high resistance on the
Left Seat Squib circuits.
LEFT SIACM, SEAT SQUIB CIRCUIT SHORTED (STORED)
When Monitored: When the ignition is on, the Left SIACM monitors the resistance of the
Left Seat Squib circuits.
Set Condition:
circuits.
The Left SIACM has detected low resistance in the Left Seat Squib
LEFT SIACM, SEAT SQUIB SHORT TO BATTERY (STORED)
When Monitored: When the ignition is on, the Left SIACM monitors the voltage of the
Left Seat Squib circuits.
Set Condition:
The Left SIACM has detected high voltage on the Left Seat Squib circuits.
LEFT SIACM, SEAT SQUIB SHORTED TO GROUND (STORED)
When Monitored: When the ignition is on, the Left SIACM monitors the resistance of the
left Seat Squib circuits for low resistance.
Set Condition:
circuits.
The Left SIACM has detected a short to ground in the left Seat Squib
24
AIRBAG
LEFT SIACM, NO PCI TRANSMISSION (STORED) —
Continued
ORC, INTERROGATE LEFT SIACM (STORED)
When Monitored: With ignition on, the ORC monitors the PCI Bus for a Left SIACM
status message containing the airbag warning lamp 9On or OFF9 request. The status
message is sent to the ORC once each second or opon any change in the active DTCs.
Set Condition: The Code will set, if the ORC receives an 9Lamp On9 status message from
the Left SIACM. NOTE: This indicates that there is an active diagnostic trouble code in the
Left SIACM.
ORC, NO LEFT SIACM MESSAGE (STORED)
When Monitored: With ignition on, the ORC monitors the PCI Bus for the Left SIACM
status message. The Left SIACM transmits the status message to the ORC at 1 - second
intervals.
Set Condition: If the ORC fails to see the Left SIACM status message on the PCI Bus for
5 seconds the code will set.
POSSIBLE CAUSES
STORED CODE PRESENT
STORED CODE HAS BECOME ACTIVE
TEST
1
ACTION
Note: Ensure the battery is fully charged.
Active codes must be resolved before diagnosing stored codes.
Turn ignition on.
With the DRBIIIt, record and errase all DTCs from all modules.
With the DRB III monitor active codes as you work through the system.
Wiggle the wiring harness and connectors of the Airbag System.
Note: Check connectors - Clean / repair as necessary.
Did the DTC become active ?
Yes
→ Select appropriate symptom from Symptom List and continue
with diagnosis.
No
→ No problem found at this time. NOTE: interrogate the ORC and
Right SIACM for DTC8s. Erase all codes in all airbag modules
before returning vehicle to customer.
25
APPLICABILITY
All
AIRBAG
Symptom:
LEFT SIACM, SEAT SQUIB CIRCUIT OPEN (ACTIVE)
When Monitored and Set Condition:
LEFT SIACM, SEAT SQUIB CIRCUIT OPEN (ACTIVE)
When Monitored: When the ignition is On, the Left SIACM monitors the Left Seat Squib
circuits for high resistance.
Set Condition: The Left SIACM has detected an open circuit or high resistance on the left
Seat Squib circuits.
POSSIBLE CAUSES
LEFT SEAT SQUIB LINE 1 CIRCUIT OPEN
LEFT SEAT SQUIB LINE 2 CIRCUIT OPEN
LEFT SEAT AIRBAG MODULE CIRCUITS OPEN
LSIACM, LEFT SEAT SQUIB CIRCUITS OPEN
TEST
ACTION
APPLICABILITY
1
Note: Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
Seat Airbag connector.
Disconnect the Left Seat Airbag connector located inside the left seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 brown cable, and appropriate jumper
harness to the Left Seat Airbag connector.
Turn Ignition On and then reconnect the Battery.
With the DRB, read the active codes.
Does the DRB show 9LEFT SEAT SQUIB CIRCUIT OPEN9?
All
Yes
→ Go To
No
→ Replace Left Seat Airbag Module squib circuits open.
Perform the Airbag Verification Test - Ver 1.
2
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
26
AIRBAG
LEFT SIACM, SEAT SQUIB CIRCUIT OPEN (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
2
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
left Seat Airbag connector.
Disconnect the Left Seat Airbag connector located inside the left seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Disconnect the Left Side Impact Airbag Control Module Connector.
Note: Check connectors - Clean / repair as necessary.
Measure the resistance of the Left Seat Squib Line 1 circuit between the Left SIACM
connector and the Left Seat Airbag connector.
Is the resistance below 1.0 ohms ?
All
Yes
→ Go To
No
→ Repair open or high resistance in the Left Seat Squib Line 1
circuit.
Perform the Airbag Verification Test - Ver 1.
3
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
3
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
Seat Airbag connector.
Disconnect the Left Seat Airbag Module Squib connector located inside the left seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Disconnect the Left Side Impact Airbag Control Module Connector.
Note: Check connectors - Clean / repair as necessary.
Measure the resistance of the Left Seat Squib Line 2 circuit between the Left SIACM
connector and the Left Seat Squib connector.
Is the resistance below 1.0 ohms?
Yes
→ Go To
No
→ Repair open or high resistance in the Left Seat Squib Line 2
circuit.
Perform the Airbag Verification Test - Ver 1.
4
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
27
All
AIRBAG
LEFT SIACM, SEAT SQUIB CIRCUIT OPEN (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
4
Warning: Disconnect the Battery and wait 2 minutes before proceeding.
Warning: If the Left Side Impact Airbag Control Module is dropped at any
time, it must be replaced.
If there are no potential causes remaining, replace the Left Side Impact Airbag
Control Module.
View repair options.
All
Repair
Replace the Left Side Impact Airbag Control Module (LSIACM) in
accordance with the Service information. WARNING: Make sure
the battery is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
28
AIRBAG
Symptom:
LEFT SIACM, SEAT SQUIB CIRCUIT SHORTED (ACTIVE)
When Monitored and Set Condition:
LEFT SIACM, SEAT SQUIB CIRCUIT SHORTED (ACTIVE)
When Monitored: When the ignition is on, the Left SIACM monitors the resistance of the
Left Seat Squib circuits.
Set Condition:
circuits.
The Left SIACM has detected low resistance in the Left Seat Squib
POSSIBLE CAUSES
LEFT SEAT SQUIB LINE 1 SHORTED TO LINE 2
LEFT SEAT AIRBAG MODULE CIRCUITS SHORTED
LSIACM, LEFT SEAT SQUIB LINE 1 CIRCUIT SHORTED TO LINE 2
TEST
ACTION
APPLICABILITY
1
Note: Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
Seat Airbag connector.
Disconnect the Left Seat Airbag connector located inside the left seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 brown cable and jumper harness to the
Left Seat Airbag connector.
Turn Ignition On and then reconnect the Battery.
With the DRB, read the active codes.
Does the DRB show 9LEFT SEAT SQUIB CIRCUIT SHORTED’?
All
Yes
→ Go To
No
→ Replace Left Seat Airbag Module.
Perform the Airbag Verification Test - Ver 1.
2
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
29
AIRBAG
LEFT SIACM, SEAT SQUIB CIRCUIT SHORTED (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
2
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
Seat Airbag connector.
Disconnect the Left Seat Airbag connector located inside the left seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Disconnect the Left Side Impact Airbag Control Module connector
Note: Check connectors - Clean / repair as necessary.
Using an Ohmmeter measure between the Left Seat Squib Line 1 and line 2 at the
Left Side Impact Airbag Control Module connector.
Is the resistance below 5.0 Ohms?
All
Yes
→ Repair Left Seat Squib Line 1 shorted to the Left Seat Squib Line
2 circuit.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
3
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
3
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Left Side Impact Airbag
Module.
View repair options.
Repair
Replace the Left Side Impact Airbg Control Module (LSIACM) in
accordance with the Service information. WARNING: Make sure
the battery is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
30
All
AIRBAG
Symptom:
LEFT SIACM, SEAT SQUIB SHORT TO BATTERY (ACTIVE)
When Monitored and Set Condition:
LEFT SIACM, SEAT SQUIB SHORT TO BATTERY (ACTIVE)
When Monitored: When the ignition is on, the Left SIACM monitors the voltage of the left
Seat Squib circuits.
Set Condition:
The Left SIACM has detected high voltage on the Left Seat Squib circuits.
POSSIBLE CAUSES
LEFT SEAT SQUIB LINE 1 SHORTED TO BATTERY
LEFT SEAT SQUIB LINE 2 SHORTED TO BATTERY
LEFT SEAT AIRBAG MODULE CIRCUITS SHORTED TO BATTERY
LSIACM, LEFT SEAT SQUIB CIRCUITS SHORTED TO BATTERY
TEST
ACTION
APPLICABILITY
1
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
Seat Airbag connector.
Disconnect the Left Seat Airbag connector located inside the left seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 brown cable and jumper harness to the
Left Seat Airbag connector.
Turn Ignition On and then reconnect the Battery.
With the DRB, read the active codes.
Does the DRB show 9LEFT SEAT SQUIB SHORTED TO BATTERY?
All
Yes
→ Go To
No
→ Replace Left Seat Airbag Module.
Perform the Airbag Verification Test - Ver 1.
2
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
31
AIRBAG
LEFT SIACM, SEAT SQUIB SHORT TO BATTERY (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
2
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
left Seat Airbag connector.
Disconnect the Left Seat Airbag connector located inside the left seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Disconnect the Left Side Impact Airbag Control Module connector.
Note: Check connectors - Clean / repair as necessary.
Turn Ignition On and then reconnect the Battery.
Using a Voltmeter, measure the Left Seat Squib Line 1 from the Left Side Impact
Airbag Control Module connector to ground.
Is the voltage above 0.5 volts on the Left Seat Squib Line 1 circuit?
All
Yes
→ Repair Left Seat Squib Line 1 shorted to battery.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
3
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
3
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
Seat Airbag connector.
Disconnect the Left Seat Airbag connector located inside the left seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Disconnect the Left Side Impact Airbag Control Module connector.
Note: Check connectors - Clean / repair as necessary.
Turn Ignition On and then reconnect the Battery.
Using a Voltmeter, measure the Left Seat Squib Line 2 from the Left Side Impact
Control Module connector to ground.
Is the voltage above 0.5 volts on the Left Seat Squib Line 2 circuit ?
Yes
→ Repair Left Seat Squib Line 2 shorted to battery.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
4
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
32
All
AIRBAG
LEFT SIACM, SEAT SQUIB SHORT TO BATTERY (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
4
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Left Side Impact Airbag Control Module is dropped at any
time, it must be replaced.
If there are no potential causes remaining, replace the Left Side Impact Airbag
Control Module.
View repair options.
All
Repair
Replace the Left Side Impact Control Module (LSIACM) in accordance with the Service information. WARNING: Make sure the
battery is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
33
AIRBAG
Symptom:
LEFT SIACM, SEAT SQUIB SHORTED TO GROUND (ACTIVE)
When Monitored and Set Condition:
LEFT SIACM, SEAT SQUIB SHORTED TO GROUND (ACTIVE)
When Monitored: When the ignition is on, the Left SIACM monitors the resistance of the
left Seat Squib circuits for low resistance.
Set Condition:
circuits.
The Left SIACM has detected a short to ground in the left Seat Squib
POSSIBLE CAUSES
LEFT SEAT SQUIB LINE 1 SHORTED TO GROUND
LEFT SEAT SQUIB LINE 2 SHORTED TO GROUND
LEFT SEAT AIRBAG MODULE CIRCUITS SHORTED TO GROUND
LSIACM, LEFT SEAT SQUIB CIRCUITS SHORTED TO GROUND
TEST
ACTION
APPLICABILITY
1
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
Seat Airbag connector.
Disconnect the Left Seat Airbag connector located inside the left seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Note: Check connectors - Clean / repair as necessary. .
Connect the Airbag System load tool # 8310 brown cable and jumper harness to the
Left Seat Airbag connector.
Turn Ignition On and then reconnect the Battery.
With the DRB, read the active codes.
Does the DRB show 9LEFT SEAT SQUIB SHORTED TO GROUND9?
All
Yes
→ Go To
No
→ Replace the Left Seat Airbag.
Perform the Airbag Verification Test - Ver 1.
2
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
34
AIRBAG
LEFT SIACM, SEAT SQUIB SHORTED TO GROUND (ACTIVE) — Continued
TEST
ACTION
APPLICABILITY
2
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
left Seat Airbag connector.
Disconnect the Left Seat Airbag connector located inside the left seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Disconnect the Left Side Impact Airbag Control Module connector.
Note: Check connectors - Clean / repair as necessary.
Using an ohmmeter, measure the resistance of the Left Seat Squib Line 1 circuit
between the Left SIACM connector and ground.
Is the resistance below 5.0 Ohms on the Left Seat Squib Line 1 circuit ?
All
Yes
→ Repair Left Seat Squib Line 1 shorted to ground.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
3
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
3
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
Seat Airbag connector.
Disconnect the Left Seat Airbag connector located inside the left seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Disconnect the Left Side Impact Airbag Control Module connector
Note: Check connectors - Clean / repair as necessary.
Using an Ohmmeter, measure the Left Seat Squib Line 2 from the Left Side Impact
Airbag Control Module connector to ground.
Is the resistance below 5.0 Ohms on the Left Seat Squib Line 2 circuit ?
Yes
→ Repair Left Seat Squib Line 2 shoredt to ground.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
4
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
35
All
AIRBAG
LEFT SIACM, SEAT SQUIB SHORTED TO GROUND (ACTIVE) — Continued
TEST
ACTION
APPLICABILITY
4
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Left Side Impact Airbag
Control Module.
View repair options.
All
Repair
Replace the Left Side Impact Airbag Control Module (LSIACM) in
accordance with the Service information. WARNING: Make sure
the battery is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
36
AIRBAG
Symptom List:
ORC ACCELEROMETER (ACTIVE)
ORC ACCELEROMETER (STORED)
ORC FIRING STORED ENERGY (ACTIVE)
ORC FIRING STORED ENERGY (STORED)
ORC INTERNAL # 1 (ACTIVE)
ORC INTERNAL # 1 (STORED)
ORC INTERNAL # 2 (ACTIVE)
ORC INTERNAL # 2 (STORED)
ORC, NO PCI TRANSMISSION (ACTIVE)
ORC, OUTPUT DRIVER # 1 (ACTIVE)
ORC, OUTPUT DRIVER # 1 (STORED)
ORC, OUTPUT DRIVER # 2 (STORED)
ORC, OUTPUT DRIVER # 2 (ACTIVE)
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be ORC ACCELEROMETER (ACTIVE).
When Monitored and Set Condition:
ORC ACCELEROMETER (ACTIVE)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
ORC ACCELEROMETER (STORED)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
ORC FIRING STORED ENERGY (ACTIVE)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
ORC FIRING STORED ENERGY (STORED)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
ORC INTERNAL # 1 (ACTIVE)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
37
AIRBAG
ORC ACCELEROMETER (ACTIVE) —
Continued
ORC INTERNAL # 1 (STORED)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
ORC INTERNAL # 2 (ACTIVE)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
ORC INTERNAL # 2 (STORED)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
ORC, NO PCI TRANSMISSION (ACTIVE)
When Monitored: With the ignition in the On position and the ORC transmitting
information on the PCI BUS.
Set Condition: The code will set if the ORC cannot detect the ORC transmitting
information on the PCI BUS for 5 consecutive seconds. NOTE: Any PCI Bus Failure will
cause this code to set.
ORC, OUTPUT DRIVER # 1 (ACTIVE)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
ORC, OUTPUT DRIVER # 1 (STORED)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
ORC, OUTPUT DRIVER # 2 (STORED)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
ORC, OUTPUT DRIVER # 2 (ACTIVE)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
POSSIBLE CAUSES
ORC, ACTIVE/STORED CODE
38
AIRBAG
ORC ACCELEROMETER (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
1
Warning: Turn Ignition Off. Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Occupant Restraint Controller.
View repair options.
All
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with Service Instructions. WARNING: Make sure the battery is
disconnected and wait 2 minutes before proceeding. Errase DTC8s
in the Left and Right SIACM.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
39
AIRBAG
Symptom:
ORC, CALIBRATION MISMATCH (ACTIVE)
When Monitored and Set Condition:
ORC, CALIBRATION MISMATCH (ACTIVE)
When Monitored: With ignition on, the ORC monitors the PCI Bus for the VIN message
containing the body style. The PCM transmits the 17-character VIN message every 13.76
seconds. Note: The VIN message should match the vehicle VIN plate.
Set Condition: If the Body style stored in ORC does not exectly match the vehicle body
style indicated by the PCM, then the fault shall be set.
POSSIBLE CAUSES
COMPARE VEHICLE IDENTIFICATION NUMBERS
PCM, PCI COMMUNICATION FAILURE
ORC, ORC CALIBRATION MISMATCH
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
Connect the DRB to the data link connector and select 9PASSIVE RESTRAINTS9,
9AIRBAG9, SYSTEM TEST9.
With the DRBIIIt, read the 9PCM Active on the Bus:9.
Does the DRB show 9PCM Active on the Bus:YES9?
All
2
Yes
→ Go To
No
→ Refer to category 9 COMMUNICATION9 and select the related
symptom.
Perform the Airbag Verification Test - Ver 1.
2
With the DRB select 9ENGINE9 MISCELLANEOUS9, SELECT MISC FUNCTION9,
and then 9CHECK VIN9 to read the Vehicle Identification Number in the Powertrain
Control Module.
Compare the VIN displayed on the DRB screen and the Vehicle VIN plate.
Does the VIN plate and the PCM VIN match?
Yes
→ Go To
No
→ Replace the Powertrain Control Module and program with the
correct vehicle identification number.
Perform the Airbag Verification Test - Ver 1.
3
40
All
AIRBAG
ORC, CALIBRATION MISMATCH (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
3
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Occupant Restraint Controller.
View repair options.
All
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: Make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
41
AIRBAG
Symptom List:
ORC, CALIBRATION MISMATCH (STORED)
ORC, CLUSTER MESSAGE MISMATCH (STORED)
ORC, DRIVER SQUIB # 1 CIRCUIT OPEN (STORED)
ORC, DRIVER SQUIB # 1 CIRCUIT SHORTED (STORED)
ORC, DRIVER SQUIB # 1 SHORTED TO BATTERY (STORED)
ORC, DRIVER SQUIB # 1 SHORTEDTO GROUND (STORED)
ORC, LOSS OF IGNITION RUN ONLY (STORED)
ORC, LOSS OF IGNITION RUN/START (STORED)
ORC, NO CLUSTER MESSAGES (STORED)
ORC, NO ODOMETER MESSAGE (STORED)
ORC, NO PCI TRANSMISSION (STORED)
ORC, PASSENGER SQUIB # 1 CIRCUIT OPEN (STORED)
ORC, PASSENGER SQUIB # 1 CIRCUIT SHORTED (STORED)
ORC, PASSENGER SQUIB # 1 SHORTED TO BATTERY (STORED)
ORC, PASSENGER SQUIB # 1 SHORTED TO GROUND (STORED)
ORC, VEHICLE BODY STYLE UNKNOWN (STORED)
ORC, WARNING LAMP CIRCUIT OPEN (STORED)
ORC, WARNING LAMP CIRCUIT SHORTED (STORED)
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be ORC, CALIBRATION MISMATCH
(STORED).
When Monitored and Set Condition:
ORC, CALIBRATION MISMATCH (STORED)
When Monitored: With ignition on, the ORC monitors the PCI Bus for the VIN message
containing the body style. The PCM transmits the 17-character VIN message every 13.76
seconds. Note: The VIN message should match the vehicle VIN plate.
Set Condition: If the Body style stored in ORC does not exectly match the vehicle body
style indicated by the PCM, then the fault shall be set.
ORC, CLUSTER MESSAGE MISMATCH (STORED)
When Monitored: After the MIC bulb test is completed, the ORC compares the Lamp
Request by ORC (On or Off) and the Lamp on by MIC (On or Off) PCI Bus messages. Each
message is transmitted one time per second or when a change in the lamp state occur.
Set Condition: If the Lamp Request by ORC (On or Off) and the Lamp on by MIC (On or
Off) messages do not match within 6 consecutive seconds, the code will set.
42
AIRBAG
ORC, CALIBRATION MISMATCH (STORED) —
Continued
ORC, DRIVER SQUIB # 1 CIRCUIT OPEN (STORED)
When Monitored: When the ignition is on, the ORC monitors the resistance of the Driver
Squib # 1 circuits.
Set Condition: The ORC has detected an open circuit or high resistance in the Driver
Squib # 1 circuits.
ORC, DRIVER SQUIB # 1 CIRCUIT SHORTED (STORED)
When Monitored: When the ignition is on, the ORC monitors the resistance of the Driver
Squib # 1 circuits.
Set Condition:
The ORC has detected low resistance on the Driver Squib # 1 circuits.
ORC, DRIVER SQUIB # 1 SHORTED TO BATTERY (STORED)
When Monitored: When the ignition is on, the ORC monitors the voltage of the Driver
Squib # 1 circuits.
Set Condition:
The ORC has detected high voltage on the Driver Squib # 1 circuits.
ORC, DRIVER SQUIB # 1 SHORTEDTO GROUND (STORED)
When Monitored: When the ignition is on, the ORC monitors the resistance of the Driver
Squib # 1 circuits.
Set Condition:
The ORC has detected a short to ground in the Driver Squib # 1 circuits.
ORC, LOSS OF IGNITION RUN ONLY (STORED)
When Monitored: With the ignition in the run/start position the ORC monitors the Fused
Ignition Switch Output Run/Start circuit for proper system voltage.
Set Condition: If the voltage on the Fused Ignition Switch Output Run Only circuit drops
below 4.5 volts, the code will set.
ORC, LOSS OF IGNITION RUN/START (STORED)
When Monitored: With the ignition in the run/start position the ORC monitors the Fused
Ignition Switch Output Run/Start circuit for proper system voltage.
Set Condition: If the voltage on the Fused Ignition Switch Output Run/Start circuit drops
below 4.5 volts, the code will set.
ORC, NO CLUSTER MESSAGES (STORED)
When Monitored: With the ignition in the On position, the ORC monitors the PCI for a
message from the MIC containing the airbag warning lamp status. The MIC transmits the
message one time at ignition on, lamp state change, or in response to the ORC lamp
message.
Set Condition:
set.
If the MIC message is not received for 5 consecutive seconds, the code will
43
AIRBAG
ORC, CALIBRATION MISMATCH (STORED) —
Continued
ORC, NO ODOMETER MESSAGE (STORED)
When Monitored: With ignition on, the ORC monitors the PCI Bus for the Odometer
message from the Body Control Module. The BCM transmits the odometer message at 1
second intervals.
Set Condition:
seconds.
The code will set, if the ORC does not see the odometer message for 10
ORC, NO PCI TRANSMISSION (STORED)
When Monitored: With the ignition in the On position and the ORC transmitting
information on the PCI BUS.
Set Condition: The code will set if the ORC cannot detect the ORC transmitting
information on the PCI BUS for 5 consecutive seconds. NOTE: Any PCI Bus Failure will
cause this code to set.
ORC, PASSENGER SQUIB # 1 CIRCUIT OPEN (STORED)
When Monitored: With the ignition is On, the ORC monitors the resistance of the
Passenger Squib # 1 circuits.
Set Condition: The ORC has detected an open circuit or high resistance on the Driver
Squib # 1 circuits.
ORC, PASSENGER SQUIB # 1 CIRCUIT SHORTED (STORED)
When Monitored: When the ignition is on, the ORC monitors the resistance of the
Passenger Squib # 1 circuits.
Set Condition:
The ORC has detected low resistance in the Passenger Squib # 1 circuits.
ORC, PASSENGER SQUIB # 1 SHORTED TO BATTERY (STORED)
When Monitored: When the ignition is on, the ORC monitors the voltage of the Passenger
Squib # 1 circuits.
Set Condition:
The ORC has detected high voltage on the Passenger Squib # 1 circuits.
ORC, PASSENGER SQUIB # 1 SHORTED TO GROUND (STORED)
When Monitored: When the ignition is on, the ORC monitors the resistance of the
Passengert Squib # 1 circuits for low resistance.
Set Condition:
circuits.
The ORC has detected a short to ground in the Passenger Squib # 1
ORC, VEHICLE BODY STYLE UNKNOWN (STORED)
When Monitored: With ignition on, the ORC monitors the PCI Bus for the VIN message
containing the vehicle body style from the Powertrain Control Module. The PCM transmits
the VIN message every 2.75 seconds.
Set Condition: If the ORC does not receive two consective odometer messages on the bus,
frist 10 seconds after ignition on, then 9VEHICLE BODY STYLE UNKNOWN9 code will
set.
44
AIRBAG
ORC, CALIBRATION MISMATCH (STORED) —
Continued
ORC, WARNING LAMP CIRCUIT OPEN (STORED)
When Monitored: When the ignition is On, the ORC monitors the PCI Bus for a message
from the MIC containing the airbag warning lamp status Ok or Open. The MIC transmit
the message one time at ignition on, opon lamp state change,or in response to the ORC
lamp message.
Set Condition:
seconds.
The code is set if the lamp state is open for 2 consecutive messages or 2
ORC, WARNING LAMP CIRCUIT SHORTED (STORED)
When Monitored: When the ignition is On, the ORC monitors the PCI Bus for a message
from the MIC containing the airbag warning lamp status Ok or Shorted. The MIC transmit
the message one time at ignition on, opon lamp state change,or in response to the ORC
lamp message.
Set Condition:
2 seconds.
The code is set if the lamp state is Shorted for 2 consecutive messages or
POSSIBLE CAUSES
STORED CODE PRESENT
STORED CODE HAS BECOME ACTIVE
TEST
ACTION
APPLICABILITY
1
Note: Ensure the battery is fully charged.
Active codes must be resolved before diagnosing stored codes.
Turn ignition on.
With the DRBIIIt, record and errase all DTCs from all modules.
With the DRB III monitor active codes as you work through the system.
Wiggle the wiring harness and connectors of the Airbag System and rotate the
steering wheel from stop to stop.
Note: Check connectors - Clean / repair as necessary.
Did the DTC become active ?
All
Yes
→ Select appropriate symptom from Symptom List and select the
active symptom.
No
→ No problem found at this time. Erase all codes before returning
vehicle to customer.
45
AIRBAG
Symptom:
ORC, CLUSTER MESSAGE MISMATCH (ACTIVE)
When Monitored and Set Condition:
ORC, CLUSTER MESSAGE MISMATCH (ACTIVE)
When Monitored: After the MIC bulb test is completed, the ORC compares the Lamp
Request by ORC (On or Off) and the Lamp on by MIC (On or Off) PCI Bus messages. Each
message is transmitted one time per second or when a change in the lamp state occur.
Set Condition: If the Lamp Request by ORC (On or Off) and the Lamp on by MIC (On or
Off) messages do not match within 6 consecutive seconds, the code will set.
POSSIBLE CAUSES
MIC, CLUSTER MESSAGE MISMATCH
MIC, COMMUNICATION FAILURE
ORC, CLUSTER MESSAGE MISMATCH
TEST
1
2
ACTION
Turn the ignition on.
Read the odometer display.
Does the MIC odometer display 9NO BUS9?
All
Yes
→ Refer to category 9 COMMUNICATION9 and select the related
symptom 9INSTRUMENT CLUSTER BUS +/ -SIGNAL OPEN 9.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
2
With the DRB select 9PASSIVE RESTRAINTS9, 9AIRBAG9, 9MONITOR DISPLAY9
and 9WARNING LAMP STATUS9.
Cycle the ignition key and observe the 9LAMP ON BY MIC9 and 9LAMP REQ BY
ORC9 monitors after the 6 to 8 second bulb check.
Does the 9LAMP ON BY MIC9 and 9LAMP REQ BY ORC9 monitors match?
YES
Go To
APPLICABILITY
3
NO
Replace Mechanical Instrument Cluster (MIC).
Perform the Airbag Verification Test - Ver 1.
46
All
AIRBAG
ORC, CLUSTER MESSAGE MISMATCH (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
3
Warning: Turn Ignition Off. Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Occupant Restraint Controller.
View repair options.
All
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: Make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
47
AIRBAG
Symptom:
ORC, DRIVER SQUIB # 1 CIRCUIT OPEN (ACTIVE)
When Monitored and Set Condition:
ORC, DRIVER SQUIB # 1 CIRCUIT OPEN (ACTIVE)
When Monitored: When the ignition is on, the ORC monitors the resistance of the Driver
Squib # 1 circuits.
Set Condition: The ORC has detected an open circuit or high resistance in the Driver
Squib # 1 circuits.
POSSIBLE CAUSES
DRIVER SQUIB # 1 LINE 2 CIRCUIT OPEN
DRIVER SQUIB # 1 LINE 1 CIRCUIT OPEN
CLOCKSPRING DRIVER SQUIB # 1 CIRCUITS OPEN
DRIVER AIRBAG MODULE CIRCUIT OPEN
ORC, DRIVER SQUIB # 1 CIRCUIT OPEN
TEST
ACTION
APPLICABILITY
1
Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Driver Airbag Module.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 brown cable and jumper harness to the
Driver Airbag squib connector.
Turn Ignition On and then reconnect the Battery.
With the DRB, read the active codes.
Does the DRB show DRIVER SQUIB # 1 CIRCUIT OPEN?
All
Yes
→ Go To
No
→ Replace the Driver Airbag Module.
Perform the Airbag Verification Test - Ver 1.
2
When reconnecting Airbag system components, the ignition must be turned
off and the battery must be disconnected.
48
AIRBAG
ORC, DRIVER SQUIB # 1 CIRCUIT OPEN (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
2
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Disconnect the Clockspring 2-way Connector.
Note: Check connectors - Clean / repair as necessary.
Disconnect the Occupant Restraint Controller 23-way Connector.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 23-way adaptor to the Occupant
Restraint Controller connector.
Using an Ohmmeter, measure the Driver Squib # 1 Line 2 circuit between the load
tool 23-way adaptor and the Clockspring 2-Way Connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To
No
→ Repair open or high resistance in the Driver Squib # 1 Line 2
Circuit.
Perform the Airbag Verification Test - Ver 1.
3
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
3
Note: Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Clockspring 2-way Connector.
Note: Check connectors - Clean / repair as necessary.
Disconnect the ORC 23-way Connector.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 23-way adaptor to the Occupant
Restraint Controller connector.
Using an Ohmmeter, measure the Driver Squib # 1 Line 1 circuit between the load
tool 23-way connector and the Driver Squib # 1 Line 1 circuit at the Clockspring
2-way Connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open or high resistance in the Driver Squib # 1 Line 1
circuit.
Perform the Airbag Verification Test - Ver 1.
4
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
49
All
AIRBAG
ORC, DRIVER SQUIB # 1 CIRCUIT OPEN (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
4
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Disconnect the Clockspring 2-way Connector.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 black cable and jumper harness to the
Clockspring 2-way connector.
Turn Ignition On and then reconnect the Battery.
With the DRB, read the active codes.
Does the DRB show DRIVER SQUIB # 1 CIRCUIT OPEN?
All
Yes
→ Go To
No
→ Replace the Clockspring.
Perform the Airbag Verification Test - Ver 1.
5
When reconnecting Airbag system components, the ignition must be turned
off and the battery must be disconnected.
5
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Occupant Restraint Controller.
View repair options.
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
50
All
AIRBAG
Symptom:
ORC, DRIVER SQUIB # 1 CIRCUIT SHORTED (ACTIVE)
When Monitored and Set Condition:
ORC, DRIVER SQUIB # 1 CIRCUIT SHORTED (ACTIVE)
When Monitored: When the ignition is on, the ORC monitors the resistance of the Driver
Squib # 1 circuits.
Set Condition:
The ORC has detected low resistance on the Driver Squib # 1 circuits.
POSSIBLE CAUSES
DRIVER SQUIB # 1 LINE 1 SHORTED TO LINE 2
CLOCKSPRING, DRIVER SQUIB # 1 LINE 1 SHORTED TO LINE 2
DRIVER AIRBAG MODULE LINE 1 SHORTED TO LINE 2
ORC, DRIVER SQUIB # 1 CIRCUITS SHORTED
TEST
ACTION
APPLICABILITY
1
Note: Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Driver Airbag Module.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 brown cable and jumper harness to the
Diver Airbag connector.
Turn Ignition On and then reconnect the Battery.
With the DRB, read the active codes.
Does the DRB show DRIVER SQUIB # 1 CIRCUIT SHORTED?
All
Yes
→ Go To
No
→ Replace Driver Airbag Module.
Perform the Airbag Verification Test - Ver 1.
2
When reconnecting Airbag system components, the ignition must be turned
off and the battery must be disconnected.
51
AIRBAG
ORC, DRIVER SQUIB # 1 CIRCUIT SHORTED (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
2
Note: Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Clockspring 2-way Connector.
Note: Check connectors - Clean / repair as necessary.
Disconnect the ORC 23-way Connector.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 23-way adaptor to the Occupant
Restraint Controller connector.
Using an Ohmmeter measure between the Driver Squib # 1 Line 1 and Line 2 at the
Clockspring Connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Repair the Driver Squib # 1 Line 1 circuit shorted to Driver Squib
# 1 Line 2 circuit.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
3
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
3
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Driver Airbag Module.
Note: Check connectors - Clean / repair as necessary.
Disconnect the Clockspring 2-way Connector.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 black cable and jumper harness to the
Clockspring 2-way connector.
Turn Ignition On and then reconnect the Battery.
With the DRB, read the active codes.
Does the DRB show DRIVER SQUIB # 1 SHORTED TO BATTERY?
Yes
→ Go To
No
→ Replace Clockspring.
Perform the Airbag Verification Test - Ver 1.
All
4
When reconnecting Airbag system components, the ignition must be turned
off and the battery must be disconnected.
4
Warning: Disconnect the Battery and wait 2 minutes before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Occupant Restraint Controller.
View repair options.
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
52
All
AIRBAG
Symptom:
ORC, DRIVER SQUIB # 1 SHORTED TO BATTERY (ACTIVE)
When Monitored and Set Condition:
ORC, DRIVER SQUIB # 1 SHORTED TO BATTERY (ACTIVE)
When Monitored: When the ignition is on, the ORC monitors the voltage of the Driver
Squib # 1 circuits.
Set Condition:
The ORC has detected high voltage on the Driver Squib # 1 circuits.
POSSIBLE CAUSES
DRIVER SQUIB # 1 LINE 2 SHORTED TO BATTERY
DRIVER SQUIB # 1 LINE 1 SHORTED TO BATTERY
CLOCKSPRING SQUIB # 1 CIRCUITS SHORTED TO BATTERY
DRIVER AIRBAG MODULE SHORT TO BATTERY
ORC, DRIVER SQUIB # 1 CIRCUITS SHORTED TO BATTERY
TEST
ACTION
APPLICABILITY
1
Note: Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Driver Airbag Module.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 brown cable and jumper harness to the
Driver Airbag squib connector.
Turn Ignition On and then reconnect the Battery.
With the DRB, read the active codes.
Does the DRB show DRIVER SQUIB # 1 SHORTED TO BATTERY?
All
Yes
→ Go To
No
→ Replace the Driver Airbag Module.
Perform the Airbag Verification Test - Ver 1.
2
When reconnecting Airbag system components, the ignition must be turned
off and the battery must be disconnected.
53
AIRBAG
ORC, DRIVER SQUIB # 1 SHORTED TO BATTERY (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
2
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Disconnect the Clockspring 2-way Connector.
Note: Check connectors - Clean / repair as necessary.
Disconnect the Occupant Restraint Controller 23-way Connector.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 23-way adaptor to the Occupant
Restraint Controller connector.
Turn Ignition On and then reconnect the Battery.
Using a Voltmeter, measure the Driver Squib # 1 Line 2 from the Clockspring
connector to ground.
Is the voltage above 0.5 volts
All
Yes
→ Repair Driver Squib # 1 Line 2 Circuit shorted to battery voltage.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
3
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
3
Note: Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Clockspring 2-way Connector.
Note: Check connectors - Clean / repair as necessary.
Disconnect the ORC 23-way Connector.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 23-way adaptor to the Occupant
Restraint Controller connector.
Turn Ignition On and then reconnect the Battery.
Using a Voltmeter, measure the Driver Airbag Line 1 from the Clockspring connector
to ground.
Is the voltage above 0.5 volts on Driver Squib # 1 Line 1 circuit?
Yes
→ Repair the Driver Squib # 1 Line 1 circuit shorted to battery.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
4
When reconnecting Airbag system components, the ignition must be turned
off and the battery must be disconnected.
54
All
AIRBAG
ORC, DRIVER SQUIB # 1 SHORTED TO BATTERY (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
4
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Driver Airbag Module.
Note: Check connectors - Clean / repair as necessary.
Disconnect the Clockspring 2-Way Connector.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 black cable and jumper harness to the
Clockspring 2-way connector.
Turn Ignition On and then reconnect the Battery.
With the DRB, read the active codes.
Does the DRB show DRIVER SQUIB # 1 SHORTED TO BATTERY ?
All
Yes
→ Go To
No
→ Replace the Clockspring.
Perform the Airbag Verification Test - Ver 1.
5
When reconnecting Airbag system components, the ignition must be turned
off and the battery must be disconnected.
5
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Occupant Restraint Controller.
View repair options.
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: Make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
55
All
AIRBAG
Symptom:
ORC, DRIVER SQUIB # 1 SHORTED TO GROUND (ACTIVE)
When Monitored and Set Condition:
ORC, DRIVER SQUIB # 1 SHORTED TO GROUND (ACTIVE)
When Monitored: When the ignition is on, the ORC monitors the resistance of the Driver
Squib # 1 circuits.
Set Condition:
The ORC has detected a short to ground in the Driver Squib # 1 circuits.
POSSIBLE CAUSES
DRIVER SQUIB # 1 LINE 2 SHORTED TO GROUND
DRIVER SQUIB # 1 LINE 1 SHORTED TO GROUND
CLOCKSPRING SQUIB # 1 CIRCUITS SHORTED TO GROUND
DRIVER AIRBAG MODULE, CIRCUITS SHORTED TO GROUND
ORC, DRIVER SQUIB # 1 SHORTED TO GROUND
TEST
ACTION
APPLICABILITY
1
Note: Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Driver Airbag Module.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 brown cable and jumper harness to the
Driver Airbag connector.
Turn Ignition On and then reconnect the Battery.
With the DRB, read the active codes.
Does the DRB show DRIVER SQUIB # 1 SHORTED TO GROUND?
All
Yes
→ Go To
No
→ Replace the Driver Airbag Module.
Perform the Airbag Verification Test - Ver 1.
2
Note: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.
56
AIRBAG
ORC, DRIVER SQUIB # 1 SHORTED TO GROUND (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
2
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Disconnect the Clockspring 2-way Connector.
Note: Check connectors - Clean / repair as necessary.
Disconnect the Occupant Restraint Controller connector.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 23-way adaptor to the Occupant
Restraint Controller connector.
Using an Ohmmeter, measure the Driver Squib # 1 Line 2 Circuit between the
Clockspring 2-Way Connector and ground.
Is the resistance below 5.0 ohms?
All
Yes
→ Repair Driver Squib # 1 Line 2 Circuit shorted to ground.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
3
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected..
3
Note: Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Clockspring 2-way Connector.
Note: Check connectors - Clean / repair as necessary.
Disconnect the ORC 23-way Connector.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 23-way adaptor to the Occupant
Restraint Controller connector.
Using an Ohmmeter, measure the Driver Squib # 1 Line 1 circuit between Clockspring 2-way Connector and ground.
Is the resistance below 5.0 ohms?
Yes
→ Repair Driver Squib # 1 Line 1 circuit shorted to ground.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
4
When reconnecting Airbag system components, the ignition must be turned
off and the battery must be disconnected.
57
All
AIRBAG
ORC, DRIVER SQUIB # 1 SHORTED TO GROUND (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
4
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Driver Airbag Module.
Note: Check connectors - Clean / repair as necessary.
Disconnect the Clockspring 2-Way Connector.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 black cable and jumper harness to the
Clockspring 2-way connector.
Turn Ignition On and then reconnect the Battery.
With the DRB, read the active codes.
Does the DRB show DRIVER SQUIB # 1 SHORTED TO GROUND?
All
Yes
→ Go To
No
→ Replace the Clockspring.
Perform the Airbag Verification Test - Ver 1.
5
When reconnecting Airbag system components, the ignition must be turned
off and the battery must be disconnected.
5
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Occupant Restraint Controller.
View repair options.
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
58
All
AIRBAG
Symptom:
ORC, INTERROGATE LEFT SIACM (ACTIVE)
When Monitored and Set Condition:
ORC, INTERROGATE LEFT SIACM (ACTIVE)
When Monitored: With ignition on, the ORC monitors the PCI Bus for a Left SIACM
status message containing the airbag warning lamp 9On or OFF9 request. The status
message is sent to the ORC once each second or opon any change in the active DTCs.
Set Condition: The Code will set, if the ORC receives an 9Lamp On9 status message from
the Left SIACM. NOTE: This indicates that there is an active diagnostic trouble code in the
Left SIACM.
POSSIBLE CAUSES
INTERROGATE LEFT SIACM
ORC, INTERROGATE LEFT SIACM
TEST
1
2
ACTION
Turn
With
With
Does
the
the
the
the
ignition on.
DRB select 9SIDE AIRBAG9 then LEFT SIACM.
DRBIIIt, read the active DTC’s.
DRB show any active diagnostic trouble codes in the Left SIACM?
Yes
→ Refer to symptom list for problems related to Left Side Impact
Airbag Control Module.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
All
2
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Occupant Restraint Controller.
View repair options.
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: Make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
59
All
AIRBAG
Symptom:
ORC, INTERROGATE RIGHT SIACM (ACTIVE)
When Monitored and Set Condition:
ORC, INTERROGATE RIGHT SIACM (ACTIVE)
When Monitored: With ignition on, the ORC monitors the PCI Bus for a Right SIACM
status message containing the airbag warning lamp 9Lamp On/ OFF9 request. The status
message is sent to the ORC once each second or opon any change in the active DTCs.
Set Condition: The Code will set, if the ORC receives an 9Lamp On9 status message from
the Right SIACM. NOTE: This indicates that there is an active diagnostic trouble code in
the Right SIACM.
POSSIBLE CAUSES
INTERROGATE RIGHT SIACM
ORC, INTERROGATE RIGHT SIACM
TEST
1
2
ACTION
Turn
With
With
Does
the
the
the
the
ignition on.
DRB select 9SIDE AIRBAG9 then ’RIGHT SIACM9.
DRBIIIt, read the active DTC’s.
DRB show any active diagnostic trouble codes in the Right SIACM?
Yes
→ Refer to PASSIVE RESTRAINTS category and select the symptom from the RIGHT SIACM list.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
All
2
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Occupant restraint Controller.
View repair options.
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: Make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
60
All
AIRBAG
Symptom List:
ORC, INTERROGATE RIGHT SIACM (STORED)
ORC, NO RIGHT SIACM MESSAGE (STORED)
RIGHT SIACM, NO PCI TRANSMISSION (STORED)
RIGHT SIACM, SEAT SQUIB CIRCUIT OPEN (STORED)
RIGHT SIACM, SEAT SQUIB CIRCUIT SHORTED (STORED)
RIGHT SIACM, SEAT SQUIB SHORTED TO BATTERY (STORED)
RIGHT SIACM, SEAT SQUIB SHORTED TO GROUND (STORED)
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be ORC, INTERROGATE RIGHT
SIACM (STORED).
When Monitored and Set Condition:
ORC, INTERROGATE RIGHT SIACM (STORED)
When Monitored: With ignition on, the ORC monitors the PCI Bus for a Right SIACM
status message containing the airbag warning lamp 9Lamp On/ OFF9 request. The status
message is sent to the ORC once each second or opon any change in the active DTCs.
Set Condition: The Code will set, if the ORC receives an 9Lamp On9 status message from
the Right SIACM. NOTE: This indicates that there is an active diagnostic trouble code in
the Right SIACM.
ORC, NO RIGHT SIACM MESSAGE (STORED)
When Monitored: With ignition on, the ORC monitors the PCI Bus for the Right Side
Impact Airbag Control Module status message. The Right SIACM transmits the status
message to the ORC at 1 - second intervals.
Set Condition: If the ORC fails to see the Right SIACM status message on the PCI Bus
for 5 seconds the code will set.
RIGHT SIACM, NO PCI TRANSMISSION (STORED)
When Monitored: With the ignition in the On position and the ORC transmitting
information on the PCI BUS.
Set Condition: The code will set if the ORC cannot detect the ORC transmitting
information on the PCI BUS for 5 consecutive seconds. NOTE: Any PCI Bus Failure will
cause this code to set.
RIGHT SIACM, SEAT SQUIB CIRCUIT OPEN (STORED)
When Monitored: With the ignition is On, the Right SIACM monitors the resistance of
the Right Seat Squib circuits.
Set Condition: The Right SIACM has detected an open circuit or high resistance on the
Right Seat Squib circuits.
61
AIRBAG
ORC, INTERROGATE RIGHT SIACM (STORED) —
Continued
RIGHT SIACM, SEAT SQUIB CIRCUIT SHORTED (STORED)
When Monitored: When the ignition is on, the Right SIACM monitors the resistance of
the Right Seat Squib circuits.
Set Condition: The Right SIACM has detected that the Right Seat Squib circuits are
shorted together.
RIGHT SIACM, SEAT SQUIB SHORTED TO BATTERY (STORED)
When Monitored: When the ignition is on, the Right SIACM monitors the voltage of the
Right Seat Squib circuits.
Set Condition:
circuits.
The Right SIACM has detected high voltage on the Right Seat Squib
RIGHT SIACM, SEAT SQUIB SHORTED TO GROUND (STORED)
When Monitored: When the ignition is on, the Right SIACM monitors the resistance of
the Right Seat Squib circuits.
Set Condition:
circuits.
The Right SIACM has detected a short to ground in the Right Seat Squib
POSSIBLE CAUSES
STORED CODE PRESENT
STORED CODE HAS BECOME ACTIVE
TEST
1
ACTION
Note: Ensure the battery is fully charged.
Active codes must be resolved before diagnosing stored codes.
Turn ignition on.
With the DRBIIIt, record and errase all DTCs from all modules.
With the DRB III monitor active codes as you work through the system.
Wiggle the wiring harness and connectors of the Airbag System.
Note: Check connectors - Clean / repair as necessary.
Did the DTC become active ?
Yes
→ Select appropriate symptom from Symptom List and continue
with diagnosis.
No
→ No problem found at this time. NOTE: interrogate the ORC and
Left SIACM for DTCs. Erase all codes in all airbag modules before
returning vehicle to customer.
62
APPLICABILITY
All
AIRBAG
Symptom:
ORC, LOSS OF IGNITION RUN ONLY (ACTIVE)
When Monitored and Set Condition:
ORC, LOSS OF IGNITION RUN ONLY (ACTIVE)
When Monitored: With the ignition in the run only position the ORC monitors the Fused
Ignition Switch Output Run circuit for proper system voltage.
Set Condition: If the voltage on the Fused Ignition Switch Output Run Only circuit drops
below 4.5 volts, the code will set.
POSSIBLE CAUSES
IGNITION SWITCH OUTPUT RUN CIRCUIT
DEFECTIVE JUNCTION BLOCK FUSE # 8
FUSED IGN SW OUTPUT RUN CKT SHORT TO GROUND
FUSED IGNITION SWITCH OUTPUT RUN ONLY CIRCUIT OPEN
ORC, FUSED IGN RUN CKT SHORTED TO GROUND
ORC, FUSED IGNITION SWITCH OUTPUT RUN ONLY CIRCUIT OPEN
TEST
ACTION
APPLICABILITY
1
Remove Junction Block Fuse # 8.
Note: Check connectors - Clean / repair as necessary.
Turn Ignition On ( Engine Off).
Using a Voltmeter measure the Ignition Switch Output Circuit between the Junction
Block Fuse # 8 and ground.
Is the voltage above 4.0 volts?
All
2
Yes
→ Go To
No
→ Repair the open or low voltage condition on the Ignition Switch
Output Run circuit.
Perform the Airbag Verification Test - Ver 1.
2
Turn Ignition off.
Remove and inspect Fuse # 8.
Is the Fuse open?
Yes
→ Go To
3
No
→ Go To
5
All
Note: Reinstall the fuse if it is not open.
63
AIRBAG
ORC, LOSS OF IGNITION RUN ONLY (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
3
Remove Fuse # 8.
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Disconnect the Occupant Restraint Controller.
Note: Check connectors - Clean / repair as necessary.
Using an Ohmmeter measure the Fused Ignition Switch Output Run (Only) circuit
between the ORC 23-way connector and ground.
Is the resistance below 5.0 ohms ?
All
Yes
→ Repair the Fused Ignition Switch Output Run Circuit for a short
to ground and replace Junction Block Fuse # 8.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
4
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
4
5
Reconnect all previouslly disconnected connectors and components.
Turn ignition off.
Install a new Fused Ignition Switch Output Run circuit fuse # 8 and turn the ignition
on.
Did the Fused Ignition Switch Output Run circuit fuse blow?
Yes
→ Replace the Occupant Restraint Controller (ORC) in accordance
with Service lnstructions. WARNING: Make sure the battery is
disconnected and wait 2 minutes before proceeding. Replace fuse
# 8.
Perform the Airbag Verification Test - Ver 1.
No
→ Test Complete.
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Disconnect the Occupant Restraint Controller connector.
Note: Check connectors - Clean / repair as necessary.
Turn Ignition On and then reconnect the Battery.
Using a Voltmeter measure the Fused Ignition Switch Output Run Only circuit from
the Occupant Restraint Controller connector to ground.
Is the voltage above 4.0 volts?
Yes
→ Go To
No
→ Repair open Fused Ignition Switch Output Run Only Circuit.
Perform the Airbag Verification Test - Ver 1.
6
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
64
All
All
AIRBAG
ORC, LOSS OF IGNITION RUN ONLY (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
6
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Occupant restraint Controller.
View repair options.
All
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: Make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
65
AIRBAG
Symptom:
ORC, LOSS OF IGNITION RUN/START (ACTIVE)
When Monitored and Set Condition:
ORC, LOSS OF IGNITION RUN/START (ACTIVE)
When Monitored: With the ignition in the run/start position the ORC monitors the Fused
Ignition Switch Output Run/Start circuit for proper system voltage.
Set Condition: If the voltage on the Fused Ignition Switch Output Run/Start circuit drops
below 4.5 volts, the code will set.
POSSIBLE CAUSES
ORC, FUSED IGNITION RUN/START CIRCUIT SHORTED TO GROUND
IGNITION SWITCH RUN/START CIRCUIT
FUSED IGNITION SW OUTPUT RUN/START SHORTED TO GROUND
FUSED IGNITION SWITCH OUTPUT RUN/START CIRCUIT OPEN
DEFECTIVE FUSE # 22
ORC, FUSED IGNITION SWITCH OUTPUT RUN/START OPEN
TEST
ACTION
APPLICABILITY
1
Remove Fuse # 22.
Note: Check connectors - Clean / repair as necessary.
Turn Ignition On ( Engine Off).
Using a Voltmeter measure the Ignition Switch Output Circuit between the Junction
Block Fuse #22 and ground.
Is the voltage above 4.0 volts?
All
2
Yes
→ Go To
No
→ Repair the open or low voltage condition on the Ignition Switch
Output Run/Start circuit.
Perform the Airbag Verification Test - Ver 1.
2
Turn Ignition off.
Remove and inspect Fuse #22.
Is the Fuse open?
Yes
→ Go To
3
No
→ Go To
5
All
Note: Reinstall the fuse if it is not open.
66
AIRBAG
ORC, LOSS OF IGNITION RUN/START (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
3
Remove Fuse # 22.
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Disconnect the Occupant Restraint Controller connector
Note: Check connectors - Clean / repair as necessary.
Using an Ohmmeter, measure the Fused Ignition Switch Output Run/Start Circuit
between the Occupant Restraint Controller connector and ground.
Is the resistance below 5.0 ohms?
All
4
5
6
Yes
→ Repair Fused Ignition Switch Output (Run/Start) Circuit shorted
to ground and replace Junction Block Fuse # 22.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
4
Reconnect all previouslly disconnected connectors and components.
Turn ignition off.
Install a new Fused Ignition Switch Output Run/Start circuit fuse # 22 and turn the
ignition on.
Did the Fused Ignition Switch Output Run/Start fuse blow?
Yes
→ Replace the Occupant Restraint Controller (ORC) in accordance
with Service information. WARNING: Make sure the battery is
disconnected and wait 2 minutes before proceeding. Replace fuse
#22.
Perform the Airbag Verification Test - Ver 1.
No
→ Test Complete.
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Disconnect the Occupant Restraint Controller connector.
Note: Check connectors - Clean / repair as necessary.
Turn Ignition On and then reconnect the Battery.
Using a Voltmeter, measure the Fused Ignition Switch Output Run/Start circuit from
the Occupant Restraint Controller connector to ground.
Is the voltage above 4.0 volts?
Yes
→ Go To
No
→ Repair open Fused Ignition Switch Output Run/Start Circuit.
Perform the Airbag Verification Test - Ver 1.
All
All
6
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Occupant Restraint Controller.
View repair options.
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: Make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
67
All
AIRBAG
Symptom:
ORC, LOSS OF IGNITION RUN/START WITH SIACM (ACTIVE)
When Monitored and Set Condition:
ORC, LOSS OF IGNITION RUN/START WITH SIACM (ACTIVE)
When Monitored: With the ignition in the run/start position the ORC monitors the Fused
Ignition Switch Output Run/Start circuit for proper system voltage.
Set Condition: If the voltage on the Fused Ignition Switch Output Run/Start circuit drops
below 4.5 volts, the code will set.
POSSIBLE CAUSES
ORC, FUSED IGNITION SWITCH OUTPUT RUN/START OPEN
SUSPECT MODULE SHORT TO GROUND
IGNITION SWITCH RUN/START CIRCUIT
RUN/START CIRCUIT SHORTED TO GROUND
FUSED IGNITION SWITCH OUTPUT RUN/START CIRCUIT OPEN WSB
TEST
ACTION
APPLICABILITY
1
Remove Fuse # 22.
Note: Check connectors - Clean / repair as necessary.
Turn Ignition On ( Engine Off).
Measure the Ignition Switch Output Circuit between the Junction Block Fuse #22
and ground.
Is the voltage above 4.0 volts?
All
2
Yes
→ Go To
No
→ Repair the open or low voltage condition on the Ignition Switch
Output Run/Start circuit.
Perform the Airbag Verification Test - Ver 1.
2
Turn Ignition off.
Remove and inspect Fuse #22.
Is the Fuse open?
Yes
→ Go To
3
No
→ Go To
5
All
Note: Reinstall the fuse if it is not open.
68
AIRBAG
ORC, LOSS OF IGNITION RUN/START WITH SIACM (ACTIVE) — Continued
TEST
ACTION
APPLICABILITY
3
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Measure the resistance of the Fused Igniion Switch Output Run/Start circuit
between the Junction Block Fuse # 22 and ground.
While monitoring the Ohmmeter, disconnect the following control modules one at a
time.
Occupant Restraint Controller (ORC)
Left Side Impact Airbag Control Module (LSIACM)
Right Side Impact Airbag Control Module (ORC)
Note: If,after disconnecting a module, the ohmmeter changes to above 5.0
ohms, the module just disconnected is defective and is pulling the Fused
Run/Start circuit low.
Note: Check connectors - Clean / repair as necessary.
With all modules disconnected, does the ohmmeter display below 5.0 ohms?
All
Yes
→ Go To
No
→ Replace the suspected Module in accordance with Service lnstructions. WARNING: Make sure the battery is disconnected and wait
2 minutes before proceeding. Replace the Junction Block Fuse #
22.
Perform the Airbag Verification Test - Ver 1.
4
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
4
If there are no potential causes remaining, repair the Fused Ignition Switch Output
Run/start circuit shorted to ground and replace the JunctionBlock Fuse # 22..
View repair options.
All
Repair
Repair Fused Ignition Switch Output Run/Start Circuit shorted to
ground and replace Junction Block Fuse #22.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
5
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Disconnect the Occupant Restraint Controller connector.
Note: Check connectors - Clean / repair as necessary.
Turn Ignition On and then reconnect the Battery.
Measure the resistance Fused Ignition Switch Output Run/Start circuit from the
Occupant Restraint Controller connector to ground.
Is the voltage above 4.0 volts?
Yes
→ Go To
No
→ Repair open Fused Ignition Switch Output Run/Start Circuit.
Perform the Airbag Verification Test - Ver 1.
6
69
All
AIRBAG
ORC, LOSS OF IGNITION RUN/START WITH SIACM (ACTIVE) — Continued
TEST
ACTION
APPLICABILITY
6
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Occupant Restraint Controller.
View repair options.
All
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: Make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
70
AIRBAG
Symptom:
ORC, NO CLUSTER MESSAGES (ACTIVE)
When Monitored and Set Condition:
ORC, NO CLUSTER MESSAGES (ACTIVE)
When Monitored: With the ignition in the On position, the ORC monitors the PCI Bus for
a message from the MIC containing the airbag warning lamp status. The MIC transmits
the message one time at ignition on, lamp state change, or in response to the ORC lamp
message.
Set Condition:
set.
If the MIC message is not received for 5 consecutive seconds, the code will
POSSIBLE CAUSES
MIC, COMMUNICATION FAILURE
NO CLUSTER MESSAGES
ORC, NO CLUSTER MESSAGES
TEST
1
2
ACTION
Turn the ignition on.
Read the odometer display.
Does the MIC odometer display 9NO BUS9?
All
Yes
→ Refer to category 9 COMMUNICATION9 and select the related
symptom 9INSTRUMENT CLUSTER BUS +/ -SIGNAL OPEN 9.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
2
With the DRB select 9PASSIVE RESTRAINTS9, 9AIRBAG9, 9MONITOR DISPLAY9
and 9WARNING LAMP STATUS9.
Cycle the ignition key and observe the 9LAMP ON BY MIC9 monitor after the 6 to 8
seconds bulb check.
Does the DRB show 9LAMP ON BY MIC: ON or OFF9?
YES
Go To
APPLICABILITY
3
NO
Replace Instrument Cluster circuit board.
Perform the Airbag Verification Test - Ver 1.
71
All
AIRBAG
ORC, NO CLUSTER MESSAGES (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
3
Warning: Turn Ignition Off. Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Occupant Restraint Controller.
View repair options.
All
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: Make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
72
AIRBAG
Symptom:
ORC, NO LEFT SIACM MESSAGE (ACTIVE)
When Monitored and Set Condition:
ORC, NO LEFT SIACM MESSAGE (ACTIVE)
When Monitored: With ignition on, the ORC monitors the PCI Bus for the Left SIACM
status message. The Left SIACM transmits the status message to the ORC at 1 - second
intervals.
Set Condition: If the ORC fails to see the Left SIACM status message on the PCI Bus for
5 seconds the code will set.
POSSIBLE CAUSES
NO LEFT SIACM MESSAGE
ORC, NO LEFT SIACM MESSAGE
TEST
ACTION
APPLICABILITY
1
With the DRB select 9SIDE AIRBAG9 then 9LEFT SIDE AIRBAG9 from the DRB
menu.
With the DRBIIIt, read the Left SIACM active DTC’s.
Does the DRB show 9NO RESPONSE or BUS +/- SIGNAL OPEN9?
All
2
Yes
→ Refer to the Communication category for the related symptom(s).
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
2
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Occupant Restraint Controller.
View repair options.
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: Make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
73
All
AIRBAG
Symptom:
ORC, NO ODOMETER MESSAGE (ACTIVE)
When Monitored and Set Condition:
ORC, NO ODOMETER MESSAGE (ACTIVE)
When Monitored: With ignition on, the ORC monitors the PCI Bus for the Odometer
message from the Body Control Module. The BCM transmits the odometer message at 1
second intervals.
Set Condition:
seconds.
The code will set, if the ORC does not see the odometer message for 10
POSSIBLE CAUSES
BCM AND PCM, PCI COMMUNICATION FAILURE
NO ODOMETER MESSAGE
ORC, NO ODOMETER MESSAGE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
Connect the DRB to the data link connector and select 9PASSIVE RESTRAINTS9,
9AIRBAG9, 9SYSTEM TEST9.
With the DRBIIIt, read the 9BCM Active on the BUS: 9 and 9PCM Active on the Bus:9.
Does the DRB show 9BCM ACTIVE ON THE BUS:YES9 and 9PCM ACTIVE ON THE
BUS:YES9?
All
2
Yes
→ Go To
No
→ Refer to category 9 COMMUNICATION9 and select the related
symptom.
Perform the Airbag Verification Test - Ver 1.
2
With the DRB select 9ENGINE9 MISCELLANEOUS9, SELECT MISC FUNCTION9,
and then 9CHECK VIN9 to read the Vehicle Identification Number in the Powertrain
Control Module.
Compare the VIN displayed on the DRB screen and the Vehicle VIN plate.
Does the VIN plate and the PCM VIN match?
Yes
→ Go To
No
→ Replace the Powertrain Control Module and program with the
correct vehicle identification number.
Perform the Airbag Verification Test - Ver 1.
3
74
All
AIRBAG
ORC, NO ODOMETER MESSAGE (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
3
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no possible causes remaining, replace the Occupant Restraint Controller.
View repair options.
All
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: Make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
75
AIRBAG
Symptom:
ORC, NO RIGHT SIACM MESSAGE (ACTIVE)
When Monitored and Set Condition:
ORC, NO RIGHT SIACM MESSAGE (ACTIVE)
When Monitored: With ignition on, the ORC monitors the PCI Bus for the Right Side
Impact Airbag Control Module status message. The Right SIACM transmits the status
message to the ORC at 1 - second intervals.
Set Condition: If the ORC fails to see the Right SIACM status message on the PCI Bus
for 5 seconds the code will set.
POSSIBLE CAUSES
NO RIGHT SIACM MESSAGE
ORC, NO RIGHT SIACM MESSAGE
TEST
ACTION
APPLICABILITY
1
With the DRB select 9SIDE AIRBAG9 and the 9RIGHT SIDE AIRBAG9 from the DRB
menu.
With the DRBIIIt, read the Right SIACM active DTC’s.
Does the DRB show 9NO RESPONSE or BUS +/- SIGNAL OPEN9?
All
2
Yes
→ Refer to the Communication category for the related symptom(s).
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
2
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no possible causes remaining, replace the Occupant Restraint Controller.
View repair options.
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: Make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
76
All
AIRBAG
Symptom:
ORC, NOT CONFIGURED FOR SAB (ACTIVE)
When Monitored and Set Condition:
ORC, NOT CONFIGURED FOR SAB (ACTIVE)
When Monitored: With ignition on, the ORC monitors the PCI Bus for the VIN message
containing 9A9, 9E9 or 9H9 in the 4 th position of the VIN. This character identifies the type
of safety equipment and should match the VIN. The PCM transmits the VIN every 13.76
seconds
Set Condition: The code will set, if the ORC detects a Side Impact Airbag Module on the
PCI Bus and a VIN message containing an 9E9 or 9H9 as the 4 th character.
POSSIBLE CAUSES
PCM, PCI COMMUNICATION FAILURE
ORC NOT CONFIGURED FOR SIDE AIRBAGS
ORC, ORC NOT CONFIGURED FOR SIDE AIRBAGS
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
Connect the DRB to the data link connector and select 9PASSIVE RESTRAINTS9,
9AIRBAG9, SYSTEM TEST9.
With the DRBIIIt, read the 9PCM Active on the Bus:9.
Does the DRB show 9PCM Active on the Bus:YES9?
All
2
Yes
→ Go To
No
→ Refer to category 9 COMMUNICATION9 and select the related
symptom.
Perform the Airbag Verification Test - Ver 1.
2
With the DRB read the Vehicle Identification Number in the Powertrain Control
Module.
Compare the VIN displayed on the DRB screen and the Vehicle VIN plate.
Does the VIN plate and the PCM VIN match?
Yes
→ Go To
No
→ Replace the Powertrain Control Module and program with the
correct vehicle identification number.
Perform the Airbag Verification Test - Ver 1.
3
77
All
AIRBAG
ORC, NOT CONFIGURED FOR SAB (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
3
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Occupant Restraint Controller.
View repair options.
All
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: Make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
78
AIRBAG
Symptom:
ORC, NOT CONFIGURED FOR SAB (STORED)
When Monitored and Set Condition:
ORC, NOT CONFIGURED FOR SAB (STORED)
When Monitored: With ignition on, the ORC monitors the PCI Bus for the VIN message
containing 9A9, 9E9 or 9H9 in the 4 th position of the VIN. This character identifies the type
of safety equipment and should match the VIN. The PCM transmits the VIN every 13.76
seconds
Set Condition: The code will set, if the ORC detects a Side Impact Airbag Module on the
PCI Bus and a VIN message containing an 9E9 or 9H9 as the 4 th character.
POSSIBLE CAUSES
INTERMITTENT PCI BUS TEST
TEST
ACTION
APPLICABILITY
1
Note: Ensure the battery is fully charged.
Active codes must be resolved before diagnosing stored codes.
Turn ignition on.
Read both active and stored codes, and record them.
With the DRB III monitor stored codes as you work through the system.
Note: Check for partially seated connectors and spread terminals - Clean /
repair as necessary.
Wiggle the wiring harness of each module on the PCI Bus.
While monitoring the DRB road test the vehicle.
Is there a wiring, connector problem, loss of communication or 9NO PCI TRANSMISSION9 DTC returns?
All
Yes
→ Repair the PCI Bus wiring, connectors or terminals as necessary.
Perform the Airbag Verification Test - Ver 1.
No
→ Test Complete.
79
AIRBAG
Symptom:
ORC, PASSENGER SQUIB # 1 CIRCUIT OPEN (ACTIVE)
When Monitored and Set Condition:
ORC, PASSENGER SQUIB # 1 CIRCUIT OPEN (ACTIVE)
When Monitored: When the ignition is On, the ORC monitors the resistance of the
Passenger Squib # 1 circuits.
Set Condition: The ORC has detected an open circuit or high resistance on the Passenger
Squib # 1 circuits.
POSSIBLE CAUSES
PASSENGER SQUIB # 1 LINE 1 CIRCUIT OPEN
PASSENGER SQUIB # 1 LINE 2 CIRCUIT OPEN
PASSENGER AIRBAG MODULE CIRCUITS OPEN
ORC, PASSENGER SQUIB # 1 CIRCUITS OPEN
TEST
ACTION
APPLICABILITY
1
Note: Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Passenger Airbag Module.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 brown cable and jumper harness to the
Passenger Airbag Module connector.
Turn Ignition On and then reconnect the Battery.
With the DRB, read the active codes.
Does the DRB show PASSENGER SQUIB # 1 CIRCUIT OPEN?
All
Yes
→ Go To
No
→ Replace Passenger Airbag Module.
Perform AIRBAG VERIFICATION TEST
2
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
80
AIRBAG
ORC, PASSENGER SQUIB # 1 CIRCUIT OPEN (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
2
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Passenger Airbag Module.
Note: Check connectors - Clean / repair as necessary.
Disconnect the Occupant Restraint Controller 23-way Connector.
Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 23-way adaptor to the Occupant
Restraint Controller connector.
With the DRB in Ohmmeter Mode measure the resistance of the Passenger Squib #
1 Line 1 Circuit between the Airbag System Load Tool Adaptor and the Passenger
Airbag Module Connector.
Is the resistance below 1.0 ohms ?
All
Yes
→ Go To
No
→ Repair open or high resistance in Passenger Squib # 1 Line 1
circuit.
3
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
3
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Passenger Airbag Module.
Note: Check connectors - Clean / repair as necessary.
Disconnect the Occupant Restraint Controller connector.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 23-way adaptor to the Occupant
Restraint Controller connector.
Using an ohmmeter, measure the resistance of the Passenger Squib # 1 Line 2 circuit
between the Airbag System Load Tool 23-way Adaptor and the Passenger Airbag
Module connector.
Is the resistance below 1.0 ohms?
Yes
→ Go To
No
→ Repair open or high resistance in Passenger Squib # 1 Line 2
circuit.
All
4
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
4
Warning: Disconnect the Battery and wait 2 minutes before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Occupant Restraint Controller.
View repair options.
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: Make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
81
All
AIRBAG
Symptom:
ORC, PASSENGER SQUIB # 1 CIRCUIT SHORTED (ACTIVE)
When Monitored and Set Condition:
ORC, PASSENGER SQUIB # 1 CIRCUIT SHORTED (ACTIVE)
When Monitored: When the ignition is on, the ORC monitors the resistance of the
Passenger Squib # 1 circuits.
Set Condition:
The ORC has detectedd low resistance in the Passenger Squib # 1 circuits.
POSSIBLE CAUSES
PASSENGER SQUIB # 1 LINE 1 SHORTED TO LINE 2
PASSENGER AIRBAG MODULE CIRCUITS SHORTED
ORC, PASSENGER SQUIB # 1 LINE 1 CIRCUIT SHORTED TO LINE 2
TEST
ACTION
APPLICABILITY
1
Note: Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Passenger Airbag Module.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 brown cable and jumper harness to the
Passenger Airbag Module connector.
Turn Ignition On and then reconnect the Battery.
With the DRB, read the active codes.
Does the DRB show PASSENGER SQUIB CIRCUIT SHORTED?
All
Yes
→ Go To
No
→ Replace Passenger Airbag Module.
Perform AIRBAG VERIFICATION TEST
2
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
82
AIRBAG
ORC, PASSENGER SQUIB # 1 CIRCUIT SHORTED (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
2
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Passenger Airbag Module.
Note: Check connectors - Clean / repair as necessary.
Disconnect the Occupant Restraint Controller connector
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 23-way adaptor to the Occupant
Restraint Controller connector.
Using an Ohmmeter measure between the Passenger Squib # 1 Line 1 and line 2 at
the Passenger Airbag Module connector.
Is the resistance below 5.0 Ohms?
All
Yes
→ Repair Passenger Squib # 1 Line 1 circuit shorted to Passenger
Squib # 1 Line 2 circuit.
No
→ Go To
3
Note:When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
3
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Occupant Restraint Controller.
View repair options.
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: Make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
83
All
AIRBAG
Symptom:
ORC, PASSENGER SQUIB # 1 SHORTED TO BATTERY (ACTIVE)
When Monitored and Set Condition:
ORC, PASSENGER SQUIB # 1 SHORTED TO BATTERY (ACTIVE)
When Monitored: When the ignition is on, the ORC monitors the voltage of the Passenger
Squib # 1 circuits.
Set Condition:
The ORC has detected high voltage on the Passenger Squib # 1 circuits.
POSSIBLE CAUSES
PASSENGER SQUIB # 1 LINE 1 SHORTED TO BATTERY
PASSENGER SQUIB # 1 LINE 2 SHORTED TO BATTERY
PASSENGER AIRBAG MODULE CIRCUITS SHORTED TO BATTERY
ORC, PASSENGER SQUIB # 1 CIRCUITS SHORTED TO BATTERY
TEST
ACTION
APPLICABILITY
1
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Passenger Airbag Module.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 brown cable and jumper harness to the
Passenger Airbag connector.
Turn Ignition On and then reconnect the Battery.
With the DRB, read the active codes.
Does the DRB show PASSENGER SQUIB CIRCUIT SHORTED TO BATTERY?
All
Yes
→ Go To
No
→ Replace Passenger Airbag Module.
Perform AIRBAG VERIFICATION TEST
2
Note:When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
84
AIRBAG
ORC, PASSENGER SQUIB # 1 SHORTED TO BATTERY (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
2
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Passenger Airbag Module.
Note: Check connectors - Clean / repair as necessary.
Disconnect the ORC 23-Way Connector.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 23-way adaptor to the Occupant
Restraint Controller connector.
Turn Ignition On and then reconnect the Battery.
Using a Voltmeter, measure the Passenger Squib # 1 Line 1 from the Passenger
Airbag Module connector to ground.
Is the voltage above 0.5 volts on Passenger Squib # 1 Line 1 circuit?
All
Yes
→ Repair Passenger Squib # 1 Line 1 circuit shorted to battery.
No
→ Go To
3
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
3
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Passenger Airbag Module.
Note: Check connectors - Clean / repair as necessary.
Disconnect the Occupant Restraint Controller connector.
Note: Check connectors - Clean / repair as necessary.
Turn Ignition On and then reconnect the Battery.
Using a Voltmeter, measure the Passenger Squib # 1 Line 2 from the Passenger
Airbag module connector to ground.
Is the voltage above 0.5 volts on Passenger Squib # 1 Line 2 circuit ?
Yes
→ Repair Passenger Squib # 1 Line 2 circuit shorted to battery.
No
→ Go To
All
4
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
4
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Occupant Restraint Controller.
View repair options.
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: Make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
85
All
AIRBAG
Symptom:
ORC, PASSENGER SQUIB # 1 SHORTED TO GROUND (ACTIVE)
When Monitored and Set Condition:
ORC, PASSENGER SQUIB # 1 SHORTED TO GROUND (ACTIVE)
When Monitored: When the ignition is on, the ORC monitors the resistance of the
Passengert Squib # 1 circuits for low resistance.
Set Condition:
circuits.
The ORC has detected a short to ground in the Passenger Squib # 1
POSSIBLE CAUSES
PASSENGER SQUIB # 1 LINE 1 SHORTED TO GROUND
PASSENGER AIRBAG LINE 2 SHORTED TO GROUND
PASSENGER AIRBAG MODULE CIRCUITS SHORTED TO GROUND
ORC, PASSENGER SQUIB # 1 CIRCUITS SHORTED TO GROUND
TEST
ACTION
APPLICABILITY
1
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Passenger Airbag Module Connector.
Note: Check connectors - Clean / repair as necessary. .
Connect the Airbag System load tool # 8310 brown cable and jumper harness to the
Passenger Airbag Module connector.
Turn Ignition On and then reconnect the Battery.
With the DRB, read the active codes.
Does the DRB show PASSENGER SQUIB CIRCUIT SHORTED TO GROUND?
All
Yes
→ Go To
No
→ Replace the Passenger Airbag Module.
Perform AIRBAG VERIFICATION TEST
2
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
86
AIRBAG
ORC, PASSENGER SQUIB # 1 SHORTED TO GROUND (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
2
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Passenger Airbag Module.
Note: Check connectors - Clean / repair as necessary.
Disconnect the Occupant Restraint Controller 23-Way Connector
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 23-way adaptor to the Occupant
Restriant Controller connector.
Using an ohmmeter, measure the resistance of the Passenger Squib # 1 Line 1 circuit
between the Passenger Airbag Module Connector and ground.
Is the resistance below 5.0 Ohms on Passenger Squib # 1 Line 1 circuit ?
All
Yes
→ Repair Passenger Squib # 1 Line 1 circuit for a shorted to ground.
No
→ Go To
3
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
3
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Disconnect the Passenger Airbag Module.
Note: Check connectors - Clean / repair as necessary.
Disconnect the Occupant Restraint Controller connector
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 23-way adaptor to the Occupant
Restraint Controller connector.
Using an Ohmmeter, measure the Passenger Squib # 1 Line 2 from the Passenger
Airbag Module connector to ground.
Is the resistance below 5.0 Ohms on Passenger Squib # 1 Line 2 circuit ?
Yes
→ Repair Passenger Squib # 1 Line 2 circuit for a short to ground.
No
→ Go To
All
4
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
4
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Occupant Restraint Controller.
View repair options.
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: Make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
87
All
AIRBAG
Symptom:
ORC, VEHICLE BODY STYLE UNKNOWN (ACTIVE)
When Monitored and Set Condition:
ORC, VEHICLE BODY STYLE UNKNOWN (ACTIVE)
When Monitored: With ignition on, the ORC monitors the PCI Bus for the VIN message
containing the vehicle body style from the Powertrain Control Module. The PCM transmits
the VIN message every 2.75 seconds.
Set Condition: If the ORC does not receive two consective odometer messages on the bus,
frist 10 seconds after ignition on, then 9VEHICLE BODY STYLE UNKNOWN9 code will
set.
POSSIBLE CAUSES
BCM AND PCM, PCI COMMUNICATION FAILURE
VEHICLE BODY STYLE UNKNOWN
ORC, VEHICLE BODY STYLE UNKNOWN
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
Connect the DRB to the data link connector and select 9PASSIVE RESTRAINTS9,
9AIRBAG9, 9SYSTEM TEST9.
With the DRBIIIt, read the 9BCM Active on the BUS: 9 and 9PCM Active on the Bus:9.
Does the DRB show 9BCM ACTIVE ON THE BUS:YES9 and 9PCM ACTIVE ON THE
BUS:YES9?
All
2
Yes
→ Go To
No
→ Refer to category 9 COMMUNICATION9 and select the related
symptom.
Perform the Airbag Verification Test - Ver 1.
2
With the DRB read the Vehicle Identification Number in the Powertrain Control
Module.
Compare the VIN displayed on the DRB screen and the Vehicle VIN plate.
Does the VIN plate and the PCM VIN match?
Yes
→ Go To
No
→ Replace the Powertrain Control Module and program with the
correct vehicle identification number.
Perform the Airbag Verification Test - Ver 1.
3
88
All
AIRBAG
ORC, VEHICLE BODY STYLE UNKNOWN (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
3
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
If there are no potential causes remaining, replace the Occupant Restraint Controller.
View repair options.
All
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: Make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
89
AIRBAG
Symptom:
ORC, WARNING LAMP CIRCUIT OPEN (ACTIVE)
When Monitored and Set Condition:
ORC, WARNING LAMP CIRCUIT OPEN (ACTIVE)
When Monitored: When the ignition is On, the ORC monitors the PCI Bus for a message
from the MIC containing the airbag warning lamp status Ok or Open. The MIC transmit
the message one time at ignition on, opon lamp state change,or in response to the ORC
lamp message.
Set Condition:
seconds.
The code is set if the lamp state is open for 2 consecutive messages or 2
POSSIBLE CAUSES
MIC, COMMUNICATION FAILURE
WARNING LAMP OPEN
ORC, WARNING LAMP CIRCUIT OPEN
TEST
1
2
ACTION
Turn the ignition on.
Read the odometer display.
Does the MIC odometer display 9NO BUS9?
APPLICABILITY
All
Yes
→ Refer to category 9 COMMUNICATION9 and select the related
symptom 9INSTRUMENT CLUSTER BUS +/ -SIGNAL OPEN 9.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
2
With the DRB select PASSIVE RESTRAINTS, AIRBAG and MONITOR DISPLAY.
Using the DRB, read the 9WARNING LAMP MONITOR9 screen.
Select the 9LAMP STATUS9 displayed on the DRB monitors screen.
1. 9LAMP STATUS: OK9
Go To 3
2. 9LAMP STATUS: OPEN9
Replace instrument cluster circuit board.
Perform the Airbag Verification Test - Ver 1.
90
All
AIRBAG
ORC, WARNING LAMP CIRCUIT OPEN (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
3
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
Replace the Occupant Restraint Controller (ORC) in accordance with Service
Instructions. WARNING: Make sure the battery is disconnected and wait 2 minutes
before proceeding.
View repair options.
All
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: Make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
91
AIRBAG
Symptom:
ORC, WARNING LAMP CIRCUIT SHORTED (ACTIVE)
When Monitored and Set Condition:
ORC, WARNING LAMP CIRCUIT SHORTED (ACTIVE)
When Monitored: When the ignition is On, the ORC monitors the PCI Bus for a message
from the MIC containing the airbag warning lamp status Ok or Shorted. The MIC transmit
the message one time at ignition on, opon lamp state change,or in response to the ORC
lamp message.
Set Condition:
2 seconds.
The code is set if the lamp state is Shorted for 2 consecutive messages or
POSSIBLE CAUSES
MIC, COMMUNICATION FAILURE
WARNING LAMP SHORTED
ORC, WARNING LAMP CIRCUIT SHORTED
TEST
1
2
ACTION
Turn the ignition on.
Read the odometer display.
Does the MIC odometer display 9NO BUS9?
APPLICABILITY
All
Yes
→ Refer to category 9 COMMUNICATION9 and select the related
symptom 9INSTRUMENT CLUSTER BUS +/ -SIGNAL OPEN 9.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
2
With the DRB select PASSIVE RESTRAINTS, AIRBAG and MONITOR DISPLAY.
Using the DRB, read the 9WARNING LAMP MONITOR9 screen.
Select the 9LAMP STATUS9 displayed on the DRB monitors screen.
1. 9LAMP STATUS: OK9
Go To 3
2. 9LAMP STATUS: SHORTED9
Replace instrument cluster circuit board.
Perform the Airbag Verification Test - Ver 1.
92
All
AIRBAG
ORC, WARNING LAMP CIRCUIT SHORTED (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
3
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Occupant Restraint Controller is dropped at any time, it
must be replaced.
Replace the Occupant Restraint Controller (ORC) in accordance with Service
Instructions. WARNING: Make sure the battery is disconnected and wait 2 minutes
before proceeding.
View repair options.
All
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with the Service information. WARNING: Make sure the battery
is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
93
AIRBAG
Symptom List:
RIGHT SIACM ACCELEROMETER # 1 (ACTIVE)
RIGHT SIACM ACCELEROMETER # 1 (STORED)
RIGHT SIACM ACCELEROMETER # 2 (ACTIVE)
RIGHT SIACM ACCELEROMETER # 2 (STORED)
RIGHT SIACM INTERNAL # 1 (ACTIVE)
RIGHT SIACM INTERNAL # 1 (STORED)
RIGHT SIACM OUTPUT DRIVER # 1 (ACTIVE)
RIGHT SIACM OUTPUT DRIVER # 1 (STORED)
RIGHT SIACM, LOSS OF IGNITION RUN/START (ACTIVE)
RIGHT SIACM, NO PCI TRANSMISSION (ACTIVE)
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be RIGHT SIACM ACCELEROMETER # 1 (ACTIVE).
When Monitored and Set Condition:
RIGHT SIACM ACCELEROMETER # 1 (ACTIVE)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
RIGHT SIACM ACCELEROMETER # 1 (STORED)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
RIGHT SIACM ACCELEROMETER # 2 (ACTIVE)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
RIGHT SIACM ACCELEROMETER # 2 (STORED)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
RIGHT SIACM INTERNAL # 1 (ACTIVE)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
RIGHT SIACM INTERNAL # 1 (STORED)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
94
AIRBAG
RIGHT SIACM ACCELEROMETER # 1 (ACTIVE) —
Continued
RIGHT SIACM OUTPUT DRIVER # 1 (ACTIVE)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
RIGHT SIACM OUTPUT DRIVER # 1 (STORED)
When Monitored:
Set Condition:
Continuously with ignition on.
The ORC has detected a diagnostic condition, replace the module.
RIGHT SIACM, LOSS OF IGNITION RUN/START (ACTIVE)
When Monitored: With the ignition in the run/start position the ORC monitors the Fused
Ignition Switch Output Run/Start circuit for proper system voltage.This is an active
trouble code only.
Set Condition: If the voltage on the Fused Ignition Switch Output Run/Start circuit is
below 4.0 volts, the code will set.
RIGHT SIACM, NO PCI TRANSMISSION (ACTIVE)
When Monitored: With the ignition in the On position and the ORC transmitting
information on the PCI BUS.
Set Condition: The code will set if the ORC cannot detect the ORC transmitting
information on the PCI BUS for 5 consecutive seconds. NOTE: Any PCI Bus Failure will
cause this code to set.
POSSIBLE CAUSES
RIGHT SIDE IMPACT AIRBAG CONTROL MODULE, ACTIVE/STORED CODE
TEST
ACTION
APPLICABILITY
1
Warning: Turn Ignition Off. Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Right Side Impact Airbag Control Module is dropped at any
time, it must be replaced.
If there are no potential causes remaining, replace the Right Side Impact Airbag
Control Module.
View repair options.
All
Repair
Replace the Right Side Impact Airbag Control Module (RSIACM)
in accordance with Service information. WARNING: Make sure
the battery is disconnected and wait 2 minutes before proceeding.
Errase DTC8s in the ORC and Left SIACM.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
95
AIRBAG
Symptom:
RIGHT SIACM, SEAT SQUIB CIRCUIT OPEN (ACTIVE)
When Monitored and Set Condition:
RIGHT SIACM, SEAT SQUIB CIRCUIT OPEN (ACTIVE)
When Monitored: With the ignition is On, the Right SIACM monitors the resistance of
the Right Seat Squib circuits.
Set Condition: he Right SIACM has detected an open circuit or high resistance on the
Right Seat Squib circuits.
POSSIBLE CAUSES
RIGHT SEAT SQUIB LINE 1 CIRCUIT OPEN
RIGHT SEAT SQUIB LINE 2 CIRCUIT OPEN
RIGHT SEAT AIRBAG MODULE CIRCUITS OPEN
RISACM, RIGHT SEAT SQUIB # 1 LINE 1 CIRCUIT OPEN
TEST
ACTION
APPLICABILITY
1
Note: Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
Seat Airbag connector.
Disconnect the Right Seat Airbag connector located inside the right seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 brown cable, and appropriate jumper
harness to the Right Seat Airbag connector.
Turn Ignition On and then reconnect the Battery.
With the DRB, read the active codes.
Does the DRB show 9RIGHT SEAT SQUIB CIRCUIT OPEN9?
All
Yes
→ Go To
No
→ Replace Right Seat Airbag Module squib circuits open.
Perform the Airbag Verification Test - Ver 1.
2
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
96
AIRBAG
RIGHT SIACM, SEAT SQUIB CIRCUIT OPEN (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
2
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
Right Seat Airbag connector.
Disconnect the Right Seat Airbag connector located inside the right seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Disconnect the Right Side Impact Airbag Control Module Connector.
Note: Check connectors - Clean / repair as necessary.
Measure the resistance of the Right Seat Squib Line 1 circuit between the Right
SIACM connector and the Right Seat Airbag connector.
Is the resistance below 1.0 ohms ?
All
Yes
→ Go To
No
→ Repair open or high resistance in the Right Seat Squib Line 1
circuit.
Perform the Airbag Verification Test - Ver 1.
3
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
3
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
Seat Airbag connector.
Disconnect the Right Seat Airbag Module Squib connector located inside the right
seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Disconnect the Right Side Impact Airbag Control Module Connector.
Note: Check connectors - Clean / repair as necessary.
Measure the resistance of the Right Seat Squib Line 2 circuit between the Right
SIACM connector and the Right Seat Squib connector.
Is the resistance below 1.0 ohms?
Yes
→ Repair open or high resistance in Right Seat Squib Line 2 circuit.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
4
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
97
All
AIRBAG
RIGHT SIACM, SEAT SQUIB CIRCUIT OPEN (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
4
Warning: Disconnect the Battery and wait 2 minutes before proceeding.
Warning: If the Right Side Impact Airbag Control module is dropped at any
time, it must be replaced.
If there are no potential causes remaining, replace the Right Side Airbag Control
Module.
View repair options.
All
Repair
Replace the Right Side Impact Airbag Control Module (RSIACM)
in accordance with the Service information. WARNING: Make
sure the battery is disconnected and wait 2 minutes before
proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
98
AIRBAG
Symptom:
RIGHT SIACM, SEAT SQUIB CIRCUIT SHORTED (ACTIVE)
When Monitored and Set Condition:
RIGHT SIACM, SEAT SQUIB CIRCUIT SHORTED (ACTIVE)
When Monitored: When the ignition is on, the Right SIACM monitors the resistance of
the Right Seat Squib circuits.
Set Condition: The Right SIACM has detected that the Right Seat Squib circuits are
shorted together.
POSSIBLE CAUSES
RIGHT SEAT SQUIB LINE 1 SHORTED TO LINE 2
RIGHT SEAT AIRBAG MODULE CIRCUITS SHORTED
RSIACM, RIGHT SEAT SQUIB LINE 1 CIRCUIT SHORTED TO LINE 2
TEST
ACTION
APPLICABILITY
1
Note: Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
Seat Airbag connector.
Disconnect the Right Seat Airbag connector located inside the left seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 brown cable and jumper harness to the
Right Seat Airbag connector.
Turn Ignition On and then reconnect the Battery.
With the DRB, read the active codes.
Does the DRB show 9RIGHT SEAT SQUIB CIRCUIT SHORTED’?
All
Yes
→ Go To
No
→ Replace Right Seat Airbag Module.
Perform the Airbag Verification Test - Ver 1.
2
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
99
AIRBAG
RIGHT SIACM, SEAT SQUIB CIRCUIT SHORTED (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
2
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
Seat Airbag connector.
Disconnect the Left Seat Airbag connector located inside the left seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Disconnect the Left Side Impact Airbag Control Module connector
Note: Check connectors - Clean / repair as necessary.
Using an Ohmmeter measure between the Left Seat Squib Line 1 and line 2 at the
Left Side Impact Airbag Control Module connector.
Is the resistance below 5.0 Ohms?
All
Yes
→ Repair Right Seat Squib Line 1 shorted to Right Seat Squib Line
2.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
3
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
3
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Right Side Impact Airbag Control Module is dropped at any
time, it must be replaced.
If there are no potential causes remaining, replace the Right Side Impact Airbag
Control Module.
View repair options.
Repair
Replace the Right Side Impact Airbag Control Module (RSIACM)
in accordance with the Service information. WARNING: Make
sure the battery is disconnected and wait 2 minutes before
proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
100
All
AIRBAG
Symptom:
RIGHT SIACM, SEAT SQUIB SHORTED TO BATTERY (ACTIVE)
When Monitored and Set Condition:
RIGHT SIACM, SEAT SQUIB SHORTED TO BATTERY (ACTIVE)
When Monitored: When the ignition is on, the Right SIACM monitors the voltage of the
Right Seat Squib circuits.
Set Condition:
circuits.
The Right SIACM has detected high voltage on the Right Seat Squib Line
POSSIBLE CAUSES
RIGHT SEAT SQUIB LINE 1 SHORTED TO BATTERY
RIGHT SEAT SQUIB LINE 2 SHORTED TO BATTERY
RIGHT SEAT AIRBAG MODULE CIRCUITS SHORTED TO BATTERY
RSIACM, RIGHT SEAT SQUIB CIRCUITS SHORTED TO BATTERY
TEST
ACTION
APPLICABILITY
1
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
Seat Airbag connector.
Disconnect the Right Seat Airbag connector located inside the Right seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Note: Check connectors - Clean / repair as necessary.
Connect the Airbag System load tool # 8310 brown cable and jumper harness to the
Right Seat Airbag connector.
Turn Ignition On and then reconnect the Battery.
With the DRB, read the active codes.
Does the DRB show 9RIGHT SEAT SQUIB SHORTED TO BATTERY?
All
Yes
→ Go To
No
→ Replace Right Seat Airbag Module.
Perform the Airbag Verification Test - Ver 1.
2
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
101
AIRBAG
RIGHT SIACM, SEAT SQUIB SHORTED TO BATTERY (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
2
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
Right Seat Airbag connector.
Disconnect the Right Seat Airbag connector located inside the right seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Disconnect the Right Side Impact Airbag Control Module connector.
Note: Check connectors - Clean / repair as necessary.
Turn Ignition On and then reconnect the Battery.
Using a Voltmeter, measure the Right Seat Squib Line 1 from the Right Side Impact
Airbag Control Module connector to ground.
Is the voltage above 0.5 volts on Right Seat Squib Line 1 circuit?
All
Yes
→ Repair Right Seat Squib Line 1 shorted to battery.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
3
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
3
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
Seat Airbag connector.
Disconnect theRight Seat Airbag connector located inside the right seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Disconnect the Right Side Impact Airbag Control Module connector.
Note: Check connectors - Clean / repair as necessary.
Turn Ignition On and then reconnect the Battery.
Using a Voltmeter, measure the Right Seat Squib Line 2 from the Right Side Impact
Control Module connector to ground.
Is the voltage above 0.5 volts on Right Seat Squib Line 2 circuit ?
Yes
→ Repair Right Seat Squib Line 2 shorted to battery.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
4
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
102
All
AIRBAG
RIGHT SIACM, SEAT SQUIB SHORTED TO BATTERY (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
4
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Right Side Impact Airbag Control Module is dropped at any
time, it must be replaced.
If there are no potential causes remaining, replace the Right Side Impact Airbag
Control Module.
View repair options.
All
Repair
Replace the Right Side Impact Airbag Control Module (RSIACM)
in accordance with the Service information. WARNING: Make
sure the battery is disconnected and wait 2 minutes before
proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
103
AIRBAG
Symptom:
RIGHT SIACM, SEAT SQUIB SHORTED TO GROUND (ACTIVE)
When Monitored and Set Condition:
RIGHT SIACM, SEAT SQUIB SHORTED TO GROUND (ACTIVE)
When Monitored: When the ignition is on, the Right SIACM monitors the resistance of
the Right Seat Squib circuits.
Set Condition:
circuits.
The Right SIACM has detected a short to ground in the Right Seat Squib
POSSIBLE CAUSES
RIGHT SEAT SQUIB LINE 1 SHORTED TO GROUND
RIGHT SEAT SQUIB LINE 2 SHORTED TO GROUND
RIGHT SEAT AIRBAG MODULE CIRCUITS SHORTED TO GROUND
RSIACM, RIGHT SEAT SQUIB CIRCUITS SHORTED TO GROUND
TEST
ACTION
APPLICABILITY
1
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
Seat Airbag connector.
Disconnect the Right Seat Airbag connector located inside the right seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Note: Check connectors - Clean / repair as necessary. .
Connect the Airbag System load tool # 8310 brown cable and jumper harness to the
Right Seat Airbag connector.
Turn Ignition On and then reconnect the Battery.
With the DRB, read the active codes.
Does the DRB show 9RIGHT SEAT SQUIB SHORTED TO GROUND9?
All
Yes
→ Go To
No
→ Replace the Right Seat Airbag.
Perform the Airbag Verification Test - Ver 1.
2
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
104
AIRBAG
RIGHT SIACM, SEAT SQUIB SHORTED TO GROUND (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
2
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
Right Seat Airbag connector.
Disconnect the Right Seat Airbag connector located inside the right seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Disconnect the Right Side Impact Airbag Control Module connector.
Note: Check connectors - Clean / repair as necessary.
Using an ohmmeter, measure the resistance of the Right Seat Squib Line 1 circuit
between the Right SIACM connector and ground.
Is the resistance below 5.0 Ohms on the Right Seat Squib Line 1 circuit ?
All
Yes
→ Repair Right Seat Squib Line 1 for a shorted to ground.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
3
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
3
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Caution: Do not place an intact undeployed Airbag face down on a hard
surface, the Airbag will propel into the air if accidently deployed.
Remove the seat back cover and parcially remove the material to gain access to the
Seat Airbag connector.
Disconnect the Right Seat Airbag connector located inside the right seat.
Do not disconnect the yellow 2-way and 4-way airbag connectors at the base of the
seat.
Disconnect the Right Side Impact Airbag Control Module connector
Note: Check connectors - Clean / repair as necessary.
Using an Ohmmeter, measure the Right Seat Squib Line 2 from the Right Side
Impact Airbag Control Module connector to ground.
Is the resistance below 5.0 Ohms on Right Seat Squib Line 2 circuit ?
Yes
→ Repair Left Seat Squib Line 2 shorted to ground.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
4
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
105
All
AIRBAG
RIGHT SIACM, SEAT SQUIB SHORTED TO GROUND (ACTIVE) —
Continued
TEST
ACTION
APPLICABILITY
4
Warning: Turn Ignition OFF. Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Right Side Impact Airbag Comtroller is dropped at any time,
it must be replaced.
If there are no potential causes remaining, replace the Right Side Impact Airbag
Control Module.
View repair options.
All
Repair
Replace the Right Side Impact Airbag Control Module (RSIACM)
in accordance with the Service information. WARNING: Make
sure the battery is disconnected and wait 2 minutes before
proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
106
AUDIO
Symptom:
ALL OUTPUTS SHORTED
POSSIBLE CAUSES
(+) CIRCUIT SHORTED TO GROUND
(-) CIRCUIT SHORTED TO GROUND
SPEAKER (+) & (-) CIRCUITS SHORTED TOGETHER
SPEAKER SECTION OF POWER AMPLIFIER
SPEAKER SECTION OF RADIO
TEST
1
2
3
4
ACTION
Turn ignition off.
Disconnect the power amplifier C2 connector.
Turn the ignition on.
Turn the radio on.
With the DRBIIIt, read DTC’s.
Does the DRBIIIt display ALL OUTPUT SHORTED?
Yes
→ Go To
No
→ Replace the Radio Power Amplifier.
APPLICABILITY
All
2
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio connector.
Measure the resistance of any speaker (+) circuit in the radio connector to ground.
Is the resistance below 1000.0 (1K) ohms?
Yes
→ Repair speaker (+) circuit for a short to ground.
No
→ Go To
All
3
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio connector.
Measure the resistance of any speaker (-) circuit in the radio connector to ground.
Is the resistance below 1000.0 (1K) ohms?
Yes
→ Repair speaker (-) circuit for a short to ground.
No
→ Go To
All
4
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C2 connector.
Disconnect the radio C1 connector.
Measure the resistance between the speaker (+) circuit and the speaker (-) circuit in
the radio C1 and C2 connectors.
What resistance did you measure?
1000.0 ohms or less.
Repair the speaker circuits shorted together.
Greater than 1000.0 ohms.
Go To 5
107
All
AUDIO
ALL OUTPUTS SHORTED —
TEST
5
Continued
ACTION
Turn ignition off.
Disconnect the radio C1 connector.
Turn the Ignition to the run position
Turn the radio on.
With the DRBIIIt, read DTC’s.
Does the DRBIIIt display ALL OUTPUT SHORTED?
Yes
→ Test Complete.
No
→ Replace the Radio.
108
APPLICABILITY
All
AUDIO
Symptom List:
AM SECTION
CASS ERROR
CASSETTE COM FAILURE
CASSETTE EJECT FAILURE
CASSETTE LOADING FAILURE
CASSETTE TAPE TENSION HIGH
CASSETTE TAPE TENSION LOW
CD ERROR
CD MECHANICAL FAILURE
FM SECTION
RADIO ERROR
*AM/FM SWITCH INOPERATIVE
*ANY STATION PRESET SWITCH INOPERATIVE
*BALANCE INOPERATIVE
*CD EJECT SWITCH INOPERATIVE
*EQUALIZER INOPERATIVE
*FADER INOPERATIVE
*FF/RW SWITCH INOPERATIVE
*HOUR/MINUTE SWITCHES INOPERATIVE
*PWR SWITCH INOPERATIVE
*SCAN SWITCH INOPERATIVE
*SEEK SWITCH INOPERATIVE
*SET SWITCH INOPERATIVE
*TAPE EJECT SWITCH INOPERATIVE
*TIME SWITCH INOPERATIVE
*TUNE SWITCH INOPERATIVE
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be AM SECTION.
When Monitored and Set Condition:
AM SECTION
When Monitored:
Set Condition:
Continuously with ignition on and radio turned on.
The code will set if the Radio detects a AM Section failure.
CASS ERROR
When Monitored:
Set Condition:
Continuously with ignition on and Radio turned on.
The code will set if the Radio detects a Cass Error.
109
AUDIO
AM SECTION —
Continued
CASSETTE COM FAILURE
When Monitored:
Set Condition:
Continuously with ignition on and Radio turned on.
The code will set if the Radio detects a Cassette Com failure.
CASSETTE EJECT FAILURE
When Monitored:
Set Condition:
Continuously with ignition on and Radio turned on.
The code will set if the Radio detects a Cassette Eject failure.
CASSETTE LOADING FAILURE
When Monitored:
Set Condition:
Continuously with ignition on and Radio turned on.
The code will set if the Radio detects a Cassette Loading failure.
CASSETTE TAPE TENSION HIGH
When Monitored:
Set Condition:
Monitored any time the PCI radio has power.
The PCI radio has experienced an internal CD failure.
CASSETTE TAPE TENSION LOW
When Monitored:
Set Condition:
Monitored any time the PCI radio has power.
The PCI radio has experienced an internal radio failure.
CD ERROR
When Monitored:
Set Condition:
Continuously with ignition on and Radio turned on.
The code will set if the Radio detects a CD Error.
CD MECHANICAL FAILURE
When Monitored:
Set Condition:
With ignnition on and the CD player turned on.
The code will set if the Radio detects a CD mechanical failure.
FM SECTION
When Monitored:
Set Condition:
Continuously with ignition on and radio turned on.
The code will set if the Radio detects a FM Section failure.
RADIO ERROR
When Monitored:
Set Condition:
Continuously with ignition on and Radio turned on.
The code will set if the Radio detects a Radio Error.
POSSIBLE CAUSES
INTERNAL FAILURE
110
AUDIO
AM SECTION —
Continued
TEST
1
ACTION
This is an internal radio failure.
View repair options.
APPLICABILITY
All
Repair
If there are no possible causes remaining, replace the Radio.
Perform the Body Verification Test - Ver 1.
111
AUDIO
Symptom:
CD CHANGER MECHANICAL FAILURE
POSSIBLE CAUSES
INTERNAL CD CHANGER FAILURE
TEST
1
ACTION
The CD Changer has detected an internal failure.
View repair options.
Repair
If there are no possible causes remaining, replace the CD
Changer.
Perform the Body Verification Test - Ver 1.
112
APPLICABILITY
CD CHANGER - 4
DISC IN DASH
AUDIO
Symptom List:
CD CHANGER PLAY FAILURE
CD CHANGER READ FAILURE
IMPROPER DISK IN CD CHANGER
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be CD CHANGER PLAY FAILURE.
When Monitored and Set Condition:
CD CHANGER PLAY FAILURE
When Monitored:
Set Condition:
will set.
Continuously with ignition on.
If the CD is scratched, dirty, so that the head cannot read the disk the code
CD CHANGER READ FAILURE
When Monitored:
Continuously with ignition on.
Set Condition: If a improper CD that is not formated for a music CD Changer is installed
the code will set.
IMPROPER DISK IN CD CHANGER
When Monitored:
Set Condition:
CD.
With inition on and the CD Changer turned on.
The code will set if the CD in the CD Changer is not formatted as a music
POSSIBLE CAUSES
CD CHANGER PLAY OR READ FAILURE
TEST
1
ACTION
APPLICABILITY
CD CHANGER - 4
Replace the problem CD with a known good, clean, unscratched, music CD.
DISC IN DASH
Turn the radio on and select the known good CD.
With the DRBIIIt, read DTC’s.
Does the DRBIIIt display 9CD CHANGER PLAY FAILURE, READ FAILURE9, or 9
IMPROPER DISK IN CD CHANGER9?
Yes
→ Replace the Remote CD Changer.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
113
AUDIO
Symptom:
CD CHANGER POWER SUPPLY TOO HIGH
When Monitored and Set Condition:
CD CHANGER POWER SUPPLY TOO HIGH
When Monitored:
Set Condition:
seconds.
Continuosly with ignition on and radio turned on.
The code will set if the radio detects ignition voltage over 16 volts for 5
POSSIBLE CAUSES
POWER SUPPLY OF CD CHANGER
CD CHANGER POWER SUPPLY TOO HIGH
TEST
1
ACTION
APPLICABILITY
CD CHANGER - 4
Turn ignition off.
DISC IN DASH
Disconnect the CD Changer Dinn connector.
Turn ignition on.
Measure the voltage of the Radio 12 Volt Output circuit in the CD Changer Dinn
Cable connector.
is the voltage over 16 volts?
Yes
→ Refer to Charging System to repair high ignition voltage.
Perform the Body Verification Test - Ver 1.
No
→ Replace CD Changer.
Perform the Body Verification Test - Ver 1.
114
AUDIO
Symptom List:
CD CHANGER TEMPERATURE HIGH
CD CHANGER TEMPERATURE LOW
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be CD CHANGER TEMPERATURE
HIGH.
When Monitored and Set Condition:
CD CHANGER TEMPERATURE HIGH
When Monitored:
Continuously with the ignition on.
Set Condition: If the temperature inside the Remote CD changer is above +65° C ( +145°
F) the code will set.
CD CHANGER TEMPERATURE LOW
When Monitored:
Continuously with ignition on.
Set Condition: If the temperature inside the Remote CD Changer is below -23° C (-10° F
) the code will set.
POSSIBLE CAUSES
LOW OR HIGH TEMPERATURE FAILURE
TEST
1
ACTION
APPLICABILITY
CD CHANGER - 4
Start the engine and allow the engine to reach normal operating temperature.
DISC IN DASH
If the vehicle has been in the hot sunlight or extreme cold move the vehicle indoors
and open the doors to allow the inside temperature to stabilize.
The Remote CD Changer will operate between -23° C and 65° C (-10° F and +145° F).
With the DRBIIIt, read DTC’s.
Does the DRBIIIt display 9CD CHANGER TEMPERATURE LOW9 or 9CD
CHANGER TEMPERATURE HIGH9?
Yes
→ Replace the Remote CD Changer.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
115
AUDIO
Symptom List:
CD PLAY FAILURE
CD READ FAILURE
IMPROPER DISK IN CD
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be CD PLAY FAILURE.
When Monitored and Set Condition:
CD PLAY FAILURE
When Monitored:
Set Condition:
will set.
Continuously with ignition on.
If the CD is scratched, dirty, so that the head cannot read the disk the code
CD READ FAILURE
When Monitored:
Continuously with ignition, radio and CD turned on.
Set Condition: The code will set if a CD that is not formated as a music CD is installed
in the CD player.
IMPROPER DISK IN CD
When Monitored:
Set Condition:
set.
With ignition on and CD Player is turned on.
If an improper CD that is not formated for music is installed the code will
POSSIBLE CAUSES
CD PLAY OR READ FAILURE
TEST
ACTION
APPLICABILITY
1
Replace the problem CD with a known good, clean, unscratched, music CD.
Turn the CD Player on and select the known good CD.
With the DRBIIIt, read DTC’s.
Does the DRBIIIt display 9CD PLAY FAILURE, CD READ FAILURE9, or 9 IMPROPER DISK IN CD9?
All
Yes
→ Replace the Radio CD player.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
116
AUDIO
Symptom:
FRONT OUTPUT SHORT
When Monitored and Set Condition:
FRONT OUTPUT SHORT
When Monitored:
Set Condition:
Monitored any time the radio is turned on.
The radio has sensed a short on it’s front output channel.
POSSIBLE CAUSES
LEFT FRONT (+) SHORTED TO GROUND
LEFT FRONT (-) SHORTED TO GROUND
LEFT FRONT CHANNEL SHORTED TOGETHER
RIGHT FRONT (+) SHORTED TO GROUND
RIGHT FRONT (-) SHORTED TO GROUND
RIGHT FRONT CHANNEL SHORTED TOGETHER
POWER AMPLIFIER (INPUT SECTION)
RADIO OUTPUT SECTION
TEST
ACTION
APPLICABILITY
1
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C1 connector.
Measure the resistance of the left front speaker (+) circuit in the radio C1 connector.
Is the resistance below 1000.0 (1K) ohms?
All
2
Yes
→ Repair left front speaker (+) circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
2
Turn ignition off.
Disconnect the power amplifier C2 connector.
Turn ignition on.
Read radio DTCs.
Does the DRB read 9SHORTED FRONT CHANNEL9?
Yes
→ Go To
No
→ Replace amplifier.
Perform the Body Verification Test - Ver 1.
3
117
All
AUDIO
FRONT OUTPUT SHORT —
Continued
TEST
ACTION
APPLICABILITY
3
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C2 connector.
Measure the resistance of the left front speaker (-) circuit in the radio C2 connector.
Is the resistance below 1000.0 (1K) ohms?
All
4
Yes
→ Repair left front speaker (-) circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C2 connector.
Disconnect the radio C1 connector.
Measure the resistance between the left front speaker (+) circuit and the left front
speaker (-) circuit in the radio C1 and C2 connectors.
What resistance did you measure?
All
1000.0 ohms or less.
Repair the left front speaker circuit shorted together.
Perform the Body Verification Test - Ver 1.
Greater than 1000.0 ohms.
Go To 5
5
6
7
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C1 connector.
Measure the resistance of the right front speaker (+) circuit in the radio C1 connector.
Is the resistance below 1000.0 (1K) ohms?
Yes
→ Repair right front speaker (+) circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
6
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C2 connector.
Measure the resistance of the right front speaker (-) circuit in the radio C2 connector.
Is the resistance below 1000.0 (1K) ohms?
Yes
→ Repair right front speaker (-) circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
7
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C2 connector.
Disconnect the radio C1 connector.
Measure the resistance between the right front speaker (+) circuit and the right front
speaker (-) circuit in the radio C1 and C2 connectors.
What resistance did you measure?
1000.0 ohms or less.
Repair the right front speaker circuit shorted together.
Perform the Body Verification Test - Ver 1.
Greater than 1000.0 ohms.
Go To 8
118
All
AUDIO
FRONT OUTPUT SHORT —
TEST
8
Continued
ACTION
If there are no potential causes remaining, replace the Radio.
View repair options.
Repair
If there are no possible causes remaining, replace the radio.
Perform the Body Verification Test - Ver 1.
119
APPLICABILITY
All
AUDIO
Symptom:
LEFT OUTPUT SHORT
When Monitored and Set Condition:
LEFT OUTPUT SHORT
When Monitored:
Set Condition:
Monitored any time the radio is turned on.
The radio has sensed a short on it’s left output channel.
POSSIBLE CAUSES
LEFT FRONT (+) SHORTED TO GROUND
LEFT FRONT (-) SHORTED TO GROUND
LEFT FRONT CHANNEL SHORTED TOGETHER
LEFT REAR (+) SHORTED TO GROUND
LEFT REAR (-) SHORTED TO GROUND
LEFT REAR CHANNEL SHORTED TOGETHER
POWER AMPLIFIER (INPUT SECTION)
RADIO OUTPUT SECTION
TEST
ACTION
APPLICABILITY
1
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C1 connector.
Measure the resistance of the left front speaker (+) circuit in the radio C1 connector.
Is the resistance below 1000.0 (1K) ohms?
All
2
Yes
→ Repair left front speaker (+) circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
2
Turn ignition off.
Disconnect the power amplifier C2 connector.
Turn ignition on.
Read radio DTCs.
Does the DRB read 9SHORTED LEFT CHANNEL9?
Yes
→ Go To
No
→ Replace amplifier.
Perform the Body Verification Test - Ver 1.
3
120
All
AUDIO
LEFT OUTPUT SHORT —
Continued
TEST
ACTION
APPLICABILITY
3
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C2 connector.
Measure the resistance of the left front speaker (-) circuit in the radio C2 connector.
Is the resistance below 1000.0 (1K) ohms?
All
4
Yes
→ Repair left front speaker (-) circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C2 connector.
Disconnect the radio C1 connector.
Measure the resistance between the left front speaker (+) circuit and the left front
speaker (-) circuit in the radio C1 and C2 connectors.
What resistance did you measure?
All
1000.0 ohms or less.
Repair the left front speaker circuit shorted together.
Perform the Body Verification Test - Ver 1.
Greater than 1000.0 ohms.
Go To 5
5
6
7
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C1 connector.
Measure the resistance of the left rear speaker (+) circuit in the radio C1 connector.
Is the resistance below 1000.0 (1K) ohms?
Yes
→ Repair left rear speaker (+) circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
6
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C1 connector.
Measure the resistance of the left rear speaker (-) circuit in the radio C1 connector.
Is the resistance below 1000.0 (1K) ohms?
Yes
→ Repair left rear speaker (-) circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
7
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C1 connector.
Measure the resistance between the left rear speaker (+) circuit and the left rear
speaker (-) circuit at the radio C1 connector.
What resistance did you measure?
1000.0 ohms or less.
Repair the left rear speaker circuit shorted together.
Perform the Body Verification Test - Ver 1.
Greater than 1000.0 ohms.
Go To 8
121
All
AUDIO
LEFT OUTPUT SHORT —
TEST
8
Continued
ACTION
If there are no potential causes remaining, replace the Radio.
View repair options.
Repair
If there are no possible causes remaining, replace the Radio.
Perform the Body Verification Test - Ver 1.
122
APPLICABILITY
All
AUDIO
Symptom:
NO ANTENNA CONNECTON
POSSIBLE CAUSES
BAD ANTENNA CONNECTION
FIXED MAST ANTENNA
BAD POWER AMPLIFIER CONNECTIONS
FUSED IGN RUN/ACCY CKT OPEN
DEFOGGER/ANTENNA MODULE GROUND CKT OPEN
REAR DEFFOGER/ANTENNA MODULE
REAR WINDOW ANTENNA GRID
TEST
1
2
3
4
ACTION
Turn ignition off.
Disconnect the radio antenna coax connector.
Inspect the radio antenna coax connection.
Was the antenna coax connection clean and tight?
Yes
→ Go To
No
→ Repair bad antenna connection as needed.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
Inspect the vehicle to identify the type of antenna.
Is this vehicle equiped with a Fixed Mast Antenna?
Yes
→ Go To
3
No
→ Go To
4
Refer to Audio System and use the Service Information to test the Fixed Mast
Antenna.
Is the Fixed Mast Antenna ok?
Yes
→ Test Complete.
No
→ Refer to Audio System and perform the antenna ohmmeter test in
accordance with the Service Information.
Perform the Body Verification Test - Ver 1.
Refer to Audio System and use the service information to test the Rear Window
Deffoger/Antenna Module.
Was the Rear Window Deffoger/Antenna Module ok?
Yes
→ Go To
No
→ Replace the Rear Deffoger/Antenna Module.
Perform the Body Verification Test - Ver 1.
5
123
All
All
All
AUDIO
NO ANTENNA CONNECTON —
Continued
TEST
ACTION
APPLICABILITY
5
Refer to Audio System and use the service information to test the Rear Window
Antenna Grid.
Is the Rear Window Antenna Grid ok?
All
6
7
8
Yes
→ Go To
No
→ Repair or replace the Rear Window Antenna Grid as necessary.
Perform the Body Verification Test - Ver 1.
6
All
Turn ignition off.
Disconnect the Power Amplifier connectors.
Inspect the Power Amplifier connections.
Are the connections clean and tight?
Yes
→ Go To
No
→ Repair as needed.
Perform the Body Verification Test - Ver 1.
7
Disconnect the Rear Window Defogger/Antenna Module connector.
Turn ignition on.
Measure the voltage of the fused ignintion switch output run/acc circuit in the Rear
Window Defogger/Antenna Module connector.
Is the voltage above 10.5 volts?
Yes
→ Go To
No
→ Repair the open fused ignition switch output circuit between the
Rear Window Defogger/Antenna Module connector and splice.
Perform the Body Verification Test - Ver 1.
All
8
Turn ignition off.
Disconnect the Rear Window Defogger/Antenna Module connector.
Measure the resistance of the Antenna Module Ground circuit.
Is the resistance above 5.0 ohms?
Yes
→ Repair open Rear Window Defogger/Antenna Module ground
circuit.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
124
All
AUDIO
Symptom:
POWER SUPPLY TOO HIGH
When Monitored and Set Condition:
POWER SUPPLY TOO HIGH
When Monitored:
Set Condition:
for 5 seconds.
Continuously with ignition on and radio turned on.
The code will set if the Cd Changer detects ignition voltage over 16 volts
POSSIBLE CAUSES
POWER SUPPLY OF RADIO
POWER SUPPLY TOO HIGH
TEST
1
ACTION
Turn ignition off.
Disconnect the radio C2 connector.
Turn ignition on.
Measure the voltage of the Panel lamps Driver circuit in the radio C2 connector.
Is the voltage over 16 volts?
Yes
→ Refer to Charging System to repair high ignition voltage.
Perform the Body Verification Test - Ver 1.
No
→ Replace Radio.
Perform the Body Verification Test - Ver 1.
125
APPLICABILITY
All
AUDIO
Symptom:
REAR OUTPUT SHORT
When Monitored and Set Condition:
REAR OUTPUT SHORT
When Monitored:
Set Condition:
Monitored any time the radio is turned on.
The radio has sensed a short on it’s rear output channel.
POSSIBLE CAUSES
LEFT REAR (+) SHORTED TO GROUND
LEFT REAR (-) SHORTED TO GROUND
LEFT REAR CHANNEL SHORTED TOGETHER
RIGHT REAR (+) SHORTED TO GROUND
RIGHT REAR (-) SHORTED TO GROUND
RIGHT REAR CHANNEL SHORTED TOGETHER
POWER AMPLIFIER (INPUT SECTION)
RADIO OUTPUT SECTION
TEST
ACTION
APPLICABILITY
1
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C1 connector.
Measure the resistance of the left rear speaker (+) circuit in the radio C1 connector.
Is the resistance below 1000.0 (1K) ohms?
All
2
Yes
→ Repair left rear speaker (+) circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
2
Turn ignition off.
Disconnect the power amplifier C2 connector.
Turn ignition on.
Read radio DTCs.
Does the DRB read 9SHORTED REAR CHANNEL9?
Yes
→ Go To
No
→ Replace amplifier.
Perform the Body Verification Test - Ver 1.
3
126
All
AUDIO
REAR OUTPUT SHORT —
Continued
TEST
ACTION
APPLICABILITY
3
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C1 connector.
Measure the resistance of the left rear speaker (-) circuit in the radio C1 connector.
Is the resistance below 1000.0 (1K) ohms?
All
4
Yes
→ Repair left rear speaker (-) circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C1 connector.
Measure the resistance between the left rear speaker (+) circuit and the left rear
speaker (-) circuit at the radio C1 connector.
What resistance did you measure?
All
1000.0 ohms or less.
Repair the left rear speaker circuit shorted together.
Perform the Body Verification Test - Ver 1.
Greater than 1000.0 ohms.
Go To 5
5
6
7
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C1 connector.
Measure the resistance of the right rear speaker (+) circuit in the radio C1 connector.
Is the resistance below 1000.0 (1K) ohms?
Yes
→ Repair right rear speaker (+) circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
6
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C1 connector.
Measure the resistance of the right rear speaker (-) circuit in the radio C1 connector.
Is the resistance below 1000.0 (1K) ohms?
Yes
→ Repair right rear speaker (-) circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
7
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C1 connector.
Measure the resistance between the right rear speaker (+) circuit and the right rear
speaker (-) circuit at the radio C1 connector.
What resistance did you measure?
1000.0 ohms or less.
Repair the right rear speaker circuit shorted together.
Perform the Body Verification Test - Ver 1.
Greater than 1000.0 ohms.
Go To 8
127
All
AUDIO
REAR OUTPUT SHORT —
TEST
8
Continued
ACTION
If there are no potential causes remaining, replace the Radio.
View repair options.
Repair
If there are no possible causes remaining, replace the Radio.
Perform the Body Verification Test - Ver 1.
128
APPLICABILITY
All
AUDIO
Symptom:
RIGHT OUTPUT SHORT
When Monitored and Set Condition:
RIGHT OUTPUT SHORT
When Monitored:
Set Condition:
Monitored any time the radio is turned on.
The radio has sensed a short on it’s right output channel.
POSSIBLE CAUSES
RIGHT FRONT (+) SHORTED TO GROUND
RIGHT FRONT (-) SHORTED TO GROUND
RIGHT FRONT CHANNEL SHORTED TOGETHER
RIGHT REAR (+) SHORTED TO GROUND
RIGHT REAR (-) SHORTED TO GROUND
RIGHT REAR CHANNEL SHORTED TOGETHER
POWER AMPLIFIER (INPUT SECTION)
RADIO OUTPUT SECTION
TEST
ACTION
APPLICABILITY
1
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C1 connector.
Measure the resistance of the right front speaker (+) circuit in the radio C1 connector.
Is the resistance below 1000.0 (1K) ohms?
All
2
Yes
→ Repair right front speaker (+) circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
2
Turn ignition off.
Disconnect the power amplifier C2 connector.
Turn ignition on.
Read radio DTCs.
Does the DRB read 9SHORTED RIGHT CHANNEL9?
Yes
→ Go To
No
→ Replace amplifier.
Perform the Body Verification Test - Ver 1.
3
129
All
AUDIO
RIGHT OUTPUT SHORT —
Continued
TEST
ACTION
APPLICABILITY
3
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C2 connector.
Measure the resistance of the right front speaker (-) circuit in the radio C2 connector.
Is the resistance below 1000.0 (1K) ohms?
All
4
Yes
→ Repair right front speaker (-) circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C2 connector.
Disconnect the radio C1 connector.
Measure the resistance between the right front speaker (+) circuit and the right front
speaker (-) circuit in the radio C1 and C2 connectors.
What resistance did you measure?
All
1000.0 ohms or less.
Repair the right front speaker circuit shorted together.
Perform the Body Verification Test - Ver 1.
Greater than 1000.0 ohms.
Go To 5
5
6
7
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C1 connector.
Measure the resistance of the right rear speaker (+) circuit in the radio C1 connector.
Is the resistance below 1000.0 (1K) ohms?
Yes
→ Repair right rear speaker (+) circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
6
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C1 connector.
Measure the resistance of the right rear speaker (-) circuit in the radio C1 connector.
Is the resistance below 1000.0 (1K) ohms?
Yes
→ Repair right rear speaker (-) circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
7
Turn ignition off.
Disconnect the power amplifier C2 connector.
Disconnect the radio C1 connector.
Measure the resistance between the right rear speaker (+) circuit and the right rear
speaker (-) circuit at the radio C1 connector.
What resistance did you measure?
1000.0 ohms or less.
Repair the right rear speaker circuit shorted together.
Perform the Body Verification Test - Ver 1.
Greater than 1000.0 ohms.
Go To 8
130
All
AUDIO
RIGHT OUTPUT SHORT —
TEST
8
Continued
ACTION
If there are no potential causes remaining, replace the Radio.
View repair options.
Repair
If there are no possible causes remaining, replace the Radio.
Perform the Body Verification Test - Ver 1.
131
APPLICABILITY
All
AUDIO
Symptom:
*NO SOUND FROM ALL SPEAKERS
POSSIBLE CAUSES
DEFECTIVE AMPLIFIER
VOLTAGE AT AMPLIFIER
BAD SHORTED FUSED IGNITION RUN/ACCY SECTION OF RADIO
FUSE # 4 DEFECTIVE
FUSED IGN RUN/ACCY CKT OPEN
FUSED B(+) CKT OPEN
FUSE # 18 DEFECTIVE
FUSED IGN RUN/ACCY SHORT TO GND
FUSED B(+) SHORT TO GROUND
OUTPUT SECTION OF RADIO
DEFECTIVE AMPLIFIER (NO OUTPUT)
RADIO GROUND CKT OPEN
AMPLIFIER GROUND CKT OPEN
TEST
1
2
ACTION
Turn ignition off.
Remove and inspect the Junction Block Fuse # 18.
Is the fuse blown?
No
→ Go To
2
Yes
→ Go To
19
Turn ignition off.
Remove and inspect the Junction Block Fuse # 4.
Is the fuse blown?
No
→ Go To
3
Yes
→ Go To
11
APPLICABILITY
All
All
Note: Reinstall the fuse if it is not open.
3
Turn the radio off.
Turn the radio on.
While backprobing, measure the voltage of the Radio 12 Volt Output circuit in the
Radio C1 connector.
Is the voltage above 10.5 volts?
Yes
→ Go To
4
No
→ Go To
4
132
All
AUDIO
*NO SOUND FROM ALL SPEAKERS —
Continued
TEST
ACTION
APPLICABILITY
4
Turn ignition off.
Disconnect the Power Amplifier C2 connector.
Turn ignition on.
Measure the voltage of the fused B(+) circuit (cavity # 1and #12) in the Power
Amplifier C2 connector.
Is the voltage above 10.5 volts at both cavity # 1 and # 12?
All
5
6
7
8
9
Yes
→ Go To
No
→ Repair the open fused B(+) circuit.
Perform the Body Verification Test - Ver 1.
5
Turn the radio off.
Backprobe the right rear speaker (+) circuit in the radio C1 connector .
Turn the radio on and observe the voltage.
Is the voltage approximately 5.5 volts?
Yes
→ Go To
No
→ Replace the radio.
Perform the Body Verification Test - Ver 1.
All
6
Turn ignition off.
Disconnect the radio C2 connector.
Turn ignition on.
Measure the voltage of the fused ign. sw. output circuit in the radio C2 connector.
Is the voltage above 10.5 volts?
Yes
→ Go To
No
→ Repair the open fused ign. switch output circuit.
Perform the Body Verification Test - Ver 1.
All
7
Turn ignition off.
Disconnect the Radio ground strap.
Measure the resistance of the radio ground strap.
Is the resistance above 5.0 ohms?
Yes
→ Repair open radio ground circuit.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
8
Turn ignition off.
Disconnect the Power Amplifier C2 connector.
Measure the resistance of the Ground circuit in the C2 connector.
Is the resistance above 5.0 ohms?
Yes
→ Repair open Power Amplifier ground circuit.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
9
Turn the radio off.
Disconnect the amplifier C2 connector.
Turn the radio on.
Measure the voltage of the Radio 12 Volt Output circuit in the amplifier C2 connector.
Is the voltage above 10.5 volts?
Yes
→ Go To
No
→ Repair the radio 12 Volt Output circuit.
Perform the Body Verification Test - Ver 1.
10
133
All
AUDIO
*NO SOUND FROM ALL SPEAKERS —
Continued
TEST
ACTION
APPLICABILITY
10
If there are no potential causes remaining, the Power Amplifier is assumed to be
defective.
View repair options.
All
Repair
Replace amplifier.
Perform the Body Verification Test - Ver 1.
11
12
13
14
15
Replace the juction block fuse # 4 with a known good fuse.
Turn ignition on and then back off again.
Turn radio and CD player on.
Remove and inspect the Junction Block Fuse # 4.
Is the fuse blown?
Yes
→ Go To
No
→ Test complete. The Fuse # 4 was replaced in the previous step.
Perform the Body Verification Test - Ver 1.
All
12
Turn the radio off.
Turn the radio on.
While backprobing, measure the voltage of the Radio 12 Volt Output circuit in the
Radio C1 connector.
Is the voltage above 10.5 volts?
Yes
→ Go To
13
No
→ Go To
13
Turn ignition off.
Disconnect the Power Amplifier C2 connector.
Turn ignition on.
Measure the voltage of the fused B(+) circuit (cavity # 1and #12) in the Power
Amplifier C2 connector.
Is the voltage above 10.5 volts at both cavity # 1 and # 12?
Yes
→ Go To
No
→ Repair the open fused B(+) circuit.
Perform the Body Verification Test - Ver 1.
All
All
14
Turn the radio off.
Backprobe the right rear speaker (+) circuit in the radio C1 connector .
Turn the radio on and observe the voltage.
Is the voltage approximately 5.5 volts?
Yes
→ Go To
No
→ Replace the radio.
Perform the Body Verification Test - Ver 1.
All
15
Turn ignition off.
Remove the junction block fuse # 4.
Disconnect the radio C2 connector.
Measure the resistance of the fused ign. sw. output circuit in the radio C2 connector.
Is the resistance greater than 5.0 ohms?
Yes
→ Go To
No
→ Repair the fused ign. switch output circuit for a short to ground
and replace the defective fuse.
Perform the Body Verification Test - Ver 1.
16
134
All
AUDIO
*NO SOUND FROM ALL SPEAKERS —
TEST
16
17
18
Continued
ACTION
Turn ignition off.
Disconnect the Radio ground strap.
Measure the resistance of the radio ground strap.
Is the resistance above 5.0 ohms?
Yes
→ Repair open radio ground circuit.
Perform the Body Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
All
17
Turn ignition off.
Disconnect the Power Amplifier C2 connector.
Measure the resistance of the Ground circuit in the C2 connector.
Is the resistance above 5.0 ohms?
Yes
→ Repair open Power Amplifier ground circuit.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
18
If there are no potential causes remaining, the radio is assumed to be defective.
View repair options.
All
Repair
Replace radio.
Perform the Body Verification Test - Ver 1.
19
Turn ignition off.
Remove and inspect the Junction Block Fuse # 4.
Is the fuse blown?
No
→ Go To
21
Yes
→ Go To
20
All
Note: Reinstall the fuse if it is not open.
20
21
Replace the juction block fuse # 4 with a known good fuse.
Turn ignition on and then back off again.
Turn radio and CD player on.
Remove and inspect the Junction Block Fuse # 4.
Is the fuse blown?
Yes
→ Go To
No
→ Test complete. The Fuse # 4 was replaced in the previous step.
Perform the Body Verification Test - Ver 1.
All
21
Replace the junction block fuse # 18 with a known good fuse.
Turn ignition on and then back off again.
Remove and inspect the Junction Block Fuse #18.
Is the fuse blown?
Yes
→ Go To
No
→ Test complete. Defective # 18 was replaced in the previous step.
Perform the Body Verification Test - Ver 1.
22
135
All
AUDIO
*NO SOUND FROM ALL SPEAKERS —
Continued
TEST
ACTION
APPLICABILITY
22
Turn the radio off.
Turn the radio on.
While backprobing, measure the voltage of the Radio 12 Volt Output circuit in the
Radio C1 connector.
Is the voltage above 10.5 volts?
All
23
24
Yes
→ Go To
23
No
→ Go To
23
Turn the radio off.
Backprobe the right rear speaker (+) circuit in the radio C1 connector .
Turn the radio on and observe the voltage.
Is the voltage approximately 5.5 volts?
Yes
→ Go To
No
→ Replace the radio.
Perform the Body Verification Test - Ver 1.
All
24
Turn ignition off.
Remove the junction block fuse # 18.
Disconnect the Power Amplifier C2 connector.
Measure the resistance of the fused B(+) circuit in the Power Amplifier C2 connector.
Is the resistance below 5.0 ohms?
No
→ Replace the Power Amplifier Fused B(+) section shorted to
ground.
Perform the Body Verification Test - Ver 1.
Yes
→ Repair the fused B(+) circuit for a short to ground and replace the
blown fuse.
Perform the Body Verification Test - Ver 1.
136
All
AUDIO
Symptom List:
*NO SOUND FROM CENTER INSTRUMENT PANEL SPEAKER
*POOR SOUND FROM CENTER INSTRUMENT PANEL SPEAKER
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be *NO SOUND FROM CENTER
INSTRUMENT PANEL SPEAKER.
POSSIBLE CAUSES
CENTER INSTRUMENT PANEL SPEAKER
CENTER INSTRUMENT PANEL SPEAKER (+) CKT. OPEN
CENTER INSTRUMENT PANEL SPKR (+) SECTION OF AMPLIFIER
CENTERINSTRUMENT PANEL SPKR (-) SECTION OF AMPLIFIER
CENTTER INSTRUMENT PANEL SPKR (-) CKT. OPEN
TEST
ACTION
APPLICABILITY
1
Turn ignition off.
Disconnect the Power Amplifier C1 connector.
Disconnect the inoperative speaker.
Measure the resistance of the defective speaker’s (+) circuit between the power
amplifier C1 and the speaker connector.
Is the resistance below 5 ohms?
All
2
Yes
→ Go To
No
→ Repair open center instrument panel spkr (+) circuit.
Perform the Body Verification Test - Ver 1.
2
Turn the Ignition to the run position
Turn the radio on.
Using a voltmeter, backprobe the center instrument panel speaker (+) ckt at the C1
connector of the amplifier.
What voltage did you measure?
Below 5.0 volts.
Replace amplifier.
Perform the Body Verification Test - Ver 1.
Between 5.0 and 6.0 volts
Go To 3
Above 6.0 volts.
Replace amplifier.
Perform the Body Verification Test - Ver 1.
137
All
AUDIO
*NO SOUND FROM CENTER INSTRUMENT PANEL SPEAKER — Continued
TEST
ACTION
APPLICABILITY
3
Turn the Ignition to the run position
Turn the radio on.
Using a voltmeter, backprobe the left center instrument panel speaker (-) ckt at the
C1 connector of the amplifier.
What voltage did you measure?
All
Below 5.0 volts.
Replace amplifier.
Perform the Body Verification Test - Ver 1.
Between 5.0 and 6.0 volts
Go To 4
Above 6.0 volts.
Replace amplifier.
Perform the Body Verification Test - Ver 1.
4
5
Turn ignition off.
Disconnect the Power Amplifier C1 connector.
Disconnect the inoperative speaker.
Measure the resistance of the defective speaker’s (-) circuit., between the power
amplifier C1 and the speaker connector.
Is the resistance below 5 ohms?
Yes
→ Go To
No
→ Repair open center instrument panel spkr (-) circuit.
Perform the Body Verification Test - Ver 1.
All
5
If there are no potential causes remaining, the Speaker is assumed to be defective.
View repair options.
Repair
If there are no possible causes remaining, replace the Center
Instrument Panel Speaker.
Perform the Body Verification Test - Ver 1.
138
All
AUDIO
Symptom List:
*NO SOUND FROM LEFT DOOR SAIL SPEAKER
*POOR SOUND FROM LEFT DOOR SAIL SPEAKER
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be *NO SOUND FROM LEFT DOOR
SAIL SPEAKER.
POSSIBLE CAUSES
LEFT DOOR SAIL SPEAKER (+) CKT. OPEN
LEFT DOOR SAIL SPEAKER (-) CKT. OPEN
LEFT DOOR SAIL SPEAKER
LEFT DOOR SAIL (+) SECTION OF AMPLIFIER
LEFT DOOR SAIL (-) SECTION OF AMPLIFIER
TEST
ACTION
APPLICABILITY
1
Turn ignition off.
Disconnect the Power Amplifier C1 connector.
Disconnect the inoperative speaker.
Measure the resistance of the inoperative speaker’s (+) circuit., between the power
amplifier C1 and the speaker connector.
Is the resistance below 5 ohms?
All
2
Yes
→ Go To
No
→ Repair open Left instrument panel spkr (+) circuit.
Perform the Body Verification Test - Ver 1.
2
Turn ignition off.
Disconnect the Power Amplifier C1 connector.
Disconnect the inoperative speaker.
Measure the resistance of the inoperative speaker’s (-) circuit., between the power
amplifier C1 and the speaker connector.
Is the resistance below 5 ohms?
Yes
→ Go To
No
→ Repair open Door sail speaker (-) circuit.
Perform the Body Verification Test - Ver 1.
3
139
All
AUDIO
*NO SOUND FROM LEFT DOOR SAIL SPEAKER —
Continued
TEST
ACTION
APPLICABILITY
3
Turn the Ignition to the run position
Turn the radio on.
Using a voltmeter, backprobe the Left door sail speaker (+) ckt at the C1 connector of
the amplifier.
What voltage did you measure?
All
Below 5.0 volts.
Replace amplifier.
Perform the Body Verification Test - Ver 1..
Between 5.0 and 6.0 volts
Go To 4
Above 6.0 volts.
Replace amplifier.
Perform the Body Verification Test - Ver 1..
4
Turn the Ignition to the run position
Turn the radio on.
Using a voltmeter, backprobe the left door sail speaker (-) ckt at the C1 connector of
the amplifier.
What voltage did you measure?
All
Below 5.0 volts.
Replace amplifier.
Perform the Body Verification Test - Ver 1..
Between 5.0 and 6.0 volts
Go To 5
Above 6.0 volts.
Replace amplifier.
Perform the Body Verification Test - Ver 1..
5
If there are no potential causes remaining, replace the speaker.
View repair options.
Repair
Replace left door sail speaker.
Perform the Body Verification Test - Ver 1.
140
All
AUDIO
Symptom List:
*NO SOUND FROM LEFT FRONT DOOR SPEAKER
*POOR SOUND FROM LEFT FRONT DOOR SPEAKER
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be *NO SOUND FROM LEFT
FRONT DOOR SPEAKER.
POSSIBLE CAUSES
LEFT FRONT DOOR SPEAKER (+) CKT. OPEN
LEFT FRONT DOOR SPEAKER (-) CKT. OPEN
LEFT FRONT DOOR SPEAKER
LEFT FRONT DOOR (+) SECTION OF AMPLIFIER
LEFT FRONT DOOR (-) SECTION OF AMPLIFIER
TEST
ACTION
APPLICABILITY
1
Turn ignition off.
Disconnect the Power Amplifier C1 connector.
Disconnect the inoperative speaker.
Measure the resistance of the inoperative speaker’s (+) circuit., between the power
amplifier C1 and the speaker connector.
Is the resistance below 5 ohms?
All
2
Yes
→ Go To
No
→ Repair open LF Door spkr (+) circuit.
Perform the Body Verification Test - Ver 1.
2
Turn ignition off.
Disconnect the Power Amplifier C1 connector.
Disconnect the inoperative speaker.
Measure the resistance of the inoperative speaker’s (-) circuit., between the power
amplifier C1 and the speaker connector.
Is the resistance below 5 ohms?
Yes
→ Go To
No
→ Repair open LF Door spkr (-) circuit.
Perform the Body Verification Test - Ver 1.
3
141
All
AUDIO
*NO SOUND FROM LEFT FRONT DOOR SPEAKER —
Continued
TEST
ACTION
APPLICABILITY
3
Turn the Ignition to the run position
Turn the radio on.
Using a voltmeter, backprobe the Left front door speaker (+) ckt at the C1 connector
of the amplifier.
What voltage did you measure?
All
Below 5.0 volts.
Replace amplifier.
Perform the Body Verification Test - Ver 1.
Between 5.0 and 6.0 volts
Go To 4
Above 6.0 volts.
Replace amplifier.
Perform the Body Verification Test - Ver 1.
4
Turn the Ignition to the run position
Turn the radio on.
Using a voltmeter, backprobe the Left front door speaker (-) ckt at the C1 connector
of the amplifier.
What voltage did you measure?
All
Below 5.0 volts.
Replace amplifier.
Perform the Body Verification Test - Ver 1.
Between 5.0 and 6.0 volts
Go To 5
Above 6.0 volts.
Replace amplifier.
Perform the Body Verification Test - Ver 1.
5
If there are no potential causes remaining, replace the speaker.
View repair options.
Repair
Replace left front door speaker.
Perform the Body Verification Test - Ver 1.
142
All
AUDIO
Symptom List:
*NO SOUND FROM LEFT REAR DOOR SPEAKER
*POOR SOUND FROM LEFT REAR DOOR SPEAKER
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be *NO SOUND FROM LEFT REAR
DOOR SPEAKER.
POSSIBLE CAUSES
LEFT REAR DOOR SPEAKER (+) CKT. OPEN
LEFT REAR DOOR SPEAKER (-) CKT. OPEN
LEFT REAR DOOR SPEAKER
LEFT REAR DOOR SPKR (+) SECTION OF AMPLIFIER
LEFT REAR DOOR SPKR (-) SECTION OF AMPLIFIER
TEST
ACTION
APPLICABILITY
1
Turn ignition off.
Disconnect the Power Amplifier C1 connector.
Disconnect the inoperative speaker.
Measure the resistance of the inoperative speaker’s (+) circuit., between the power
amplifier C2 and the speaker connector.
Is the resistance below 5 ohms?
All
2
Yes
→ Go To
No
→ Repair open LR Door spkr (+) circuit.
Perform the Body Verification Test - Ver 1.
2
Turn ignition off.
Disconnect the Power Amplifier C1 connector.
Disconnect the inoperative speaker.
Measure the resistance of the inoperative speaker’s (-) circuit., between the power
amplifier C1 and the speaker connector.
Is the resistance below 5 ohms?
Yes
→ Go To
No
→ Repair open LR Door spkr (-) circuit.
Perform the Body Verification Test - Ver 1.
3
143
All
AUDIO
*NO SOUND FROM LEFT REAR DOOR SPEAKER —
Continued
TEST
ACTION
APPLICABILITY
3
Turn ignition on.
Turn the radio on.
Using a voltmeter, backprobe the left rear door speaker (+) ckt at the C2 connector of
the amplifier.
What voltage did you measure?
All
Below 5.0 volts.
Replace amplifier.
Perform the Body Verification Test - Ver 1.
Between 5.0 and 6.0 volts
Go To 4
Above 6.0 volts.
Replace amplifier.
Perform the Body Verification Test - Ver 1.
4
Turn ignition on.
Turn the radio on.
Using a voltmeter, backprobe the left rear door speaker (-) ckt at the C2 connector of
the amplifier.
What voltage did you measure?
All
Below 5.0 volts.
Replace amplifier.
Perform the Body Verification Test - Ver 1.
Between 5.0 and 6.0 volts
Go To 5
Above 6.0 volts.
Replace amplifier.
Perform the Body Verification Test - Ver 1.
5
If there are no potential causes remaining, replace the speaker.
View repair options.
Repair
Replace left rear door speaker.
Perform the Body Verification Test - Ver 1.
144
All
AUDIO
Symptom List:
*NO SOUND FROM RIGHT DOOR SAIL SPEAKER
*POOR SOUND FROM RIGHT DOOR SAIL SPEAKER
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be *NO SOUND FROM RIGHT
DOOR SAIL SPEAKER.
POSSIBLE CAUSES
RIGHT DOOR SAIL SPEAKER (+) CKT. OPEN
RIGHT DOOR SAIL SPEAKER (-) CKT. OPEN
RIGHT DOOR SAIL SPEAKER
RIGHT DOOR SAIL (+) SECTION OF AMPLIFIER
RIGHT DOOR SAIL (-) SECTION OF AMPLIFIER
TEST
ACTION
APPLICABILITY
1
Turn ignition off.
Disconnect the Power Amplifier C1 connector.
Disconnect the inoperative speaker.
Measure the resistance of the inoperative speaker’s (+) circuit., between the power
amplifier C1 and the speaker connector.
Is the resistance below 5 ohms?
All
2
Yes
→ Go To
No
→ Repair open right door sail spkr (+) circuit.
Perform the Body Verification Test - Ver 1.
2
Turn ignition off.
Disconnect the Power Amplifier C1 connector.
Disconnect the inoperative speaker.
Measure the resistance of the inoperative speaker’s (-) circuit., between the power
amplifier C1 and the speaker connector.
Is the resistance below 5 ohms?
Yes
→ Go To
No
→ Repair open right door sail spkr (-) circuit.
Perform the Body Verification Test - Ver 1.
3
145
All
AUDIO
*NO SOUND FROM RIGHT DOOR SAIL SPEAKER —
Continued
TEST
ACTION
APPLICABILITY
3
Turn the Ignition to the run position
Turn the radio on.
Using a voltmeter, backprobe the right door sail speaker (+) ckt at the C1 connector
of the amplifier.
What voltage did you measure?
All
Below 5.0 volts.
Replace amplifier.
Perform the Body Verification Test - Ver 1.
Between 5.0 and 6.0 volts
Go To 4
Above 6.0 volts.
Replace amplifier.
Perform the Body Verification Test - Ver 1.
4
Turn the Ignition to the run position
Turn the radio on.
Using a voltmeter, backprobe the right door sail speaker (-) ckt at the C1 connector
of the amplifier.
What voltage did you measure?
All
Below 5.0 volts.
Replace amplifier.
Perform the Body Verification Test - Ver 1.
Between 5.0 and 6.0 volts
Go To 5
Above 6.0 volts.
Replace amplifier.
Perform the Body Verification Test - Ver 1.
5
If there are no potential causes remaining, replace the speaker.
View repair options.
Repair
Replace right door saill speaker.
Perform the Body Verification Test - Ver 1.
146
All
AUDIO
Symptom List:
*NO SOUND FROM RIGHT FRONT DOOR SPEAKER
*POOR SOUND FROM RIGHT FRONT DOOR SPEAKER
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be *NO SOUND FROM RIGHT
FRONT DOOR SPEAKER.
POSSIBLE CAUSES
RIGHT FRONT DOOR SPEAKER (+) CKT. OPEN
RIGHT FRONT DOOR SPEAKER (-) CKT. OPEN
RIGHT FRONT DOOR SPEAKER
RIGHT FRONT DOOR (+) SECTION OF AMPLIFIER
RIGHT FRONT DOOR (-) SECTION OF AMPLIFIER
TEST
ACTION
APPLICABILITY
1
Turn ignition off.
Disconnect the Power Amplifier C1 connector.
Disconnect the inoperative speaker.
Measure the resistance of the inoperative speaker’s (+) circuit., between the power
amplifier C1 and the speaker connector.
Is the resistance below 5 ohms?
All
2
Yes
→ Go To
No
→ Repair open RF Door spkr (+) circuit.
Perform body verification TEST 1A.
2
Turn ignition off.
Disconnect the Power Amplifier C1 connector.
Disconnect the inoperative speaker.
Measure the resistance of the inoperative speaker’s (-) circuit., between the power
amplifier C1 and the speaker connector.
Is the resistance below 5 ohms?
Yes
→ Go To
No
→ Repair open RF Door spkr (-) circuit.
Perform body verification TEST 1A.
3
147
All
AUDIO
*NO SOUND FROM RIGHT FRONT DOOR SPEAKER —
Continued
TEST
ACTION
APPLICABILITY
3
Turn ignition on.
Turn the radio on.
Using a voltmeter, backprobe the right front door speaker (+) ckt at the C1 connector
of the amplifier.
What voltage did you measure?
All
Below 5.0 volts.
Replace amplifier.
Perform body verification TEST 1A.
Between 5.0 and 6.0 volts
Go To 4
Above 6.0 volts.
Replace amplifier.
Perform body verification TEST 1A.
4
Turn ignition on.
Turn the radio on.
Using a voltmeter, backprobe the Right front door speaker (-) ckt at the C1 connector
of the amplifier.
What voltage did you measure?
All
Below 5.0 volts.
Replace amplifier.
Perform body verification TEST 1A.
Between 5.0 and 6.0 volts
Go To 5
Above 6.0 volts.
Replace amplifier.
Perform body verification TEST 1A.
5
If there are no potential causes remaining, replace the speaker.
View repair options.
Repair
Replace right front door speaker.
Perform the Body Verification Test - Ver 1.
148
All
AUDIO
Symptom List:
*NO SOUND FROM RIGHT REAR DOOR SPEAKER
*POOR SOUND FROM RIGHT REAR DOOR SPEAKER
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be *NO SOUND FROM RIGHT
REAR DOOR SPEAKER.
POSSIBLE CAUSES
RIGHT REAR DOOR SPEAKER (+) CKT. OPEN
RIGHT REAR DOOR SPEAKER (-) CKT. OPEN
RIGHT REAR DOOR SPEAKER
RIGHT REAR DOOR SPKR (+) SECTION OF AMPLIFIER
RIGHT REAR DOOR SPKR (-) SECTION OF AMPLIFIER
TEST
ACTION
APPLICABILITY
1
Turn ignition off.
Disconnect the Power Amplifier C1 connector.
Disconnect the inoperative speaker.
Measure the resistance of the inoperative speaker’s (+) circuit., between the power
amplifier C2 and the speaker connector.
Is the resistance below 5 ohms?
All
2
Yes
→ Go To
No
→ Repair open RR Door spkr (+) circuit.
Perform body verification TEST 1A.
2
Turn ignition off.
Disconnect the Power Amplifier C1 connector.
Disconnect the inoperative speaker.
Measure the resistance of the inoperative speaker’s (-) circuit., between the power
amplifier C1 and the speaker connector.
Is the resistance below 5 ohms?
Yes
→ Go To
No
→ Repair open RR Door spkr (-) circuit.
Perform body verification TEST 1A.
3
149
All
AUDIO
*NO SOUND FROM RIGHT REAR DOOR SPEAKER —
Continued
TEST
ACTION
APPLICABILITY
3
Turn ignition on.
Turn the radio on.
Using a voltmeter, backprobe the right rear door speaker (+) ckt at the C2 connector
of the amplifier.
What voltage did you measure?
All
Below 5.0 volts.
Replace amplifier.
Perform body verification TEST 1A.
Between 5.0 and 6.0 volts
Go To 4
Above 6.0 volts.
Replace amplifier.
Perform body verification TEST 1A.
4
Turn ignition on.
Turn the radio on.
Using a voltmeter, backprobe the right rear door speaker (-) ckt at the C2 connector
of the amplifier.
What voltage did you measure?
All
Below 5.0 volts.
Replace amplifier.
Perform body verification TEST 1A.
Between 5.0 and 6.0 volts
Go To 5
Above 6.0 volts.
Replace amplifier.
Perform body verification TEST 1A.
5
If there are no potential causes remaining, replace the speaker.
View repair options.
Repair
Replace right rear door speaker.
Perform body verification TEST 1A.
150
All
AUDIO
Symptom:
*POOR SOUND FROM ALL SPEAKERS
POSSIBLE CAUSES
FIXED MAST ANTENNA
BAD POWER AMPLIFIER CONNECTIONS
FUSED IGN RUN/ACCY CKT OPEN
DEFOGGER/ANTENNA MODULE GROUND CKT OPEN
REAR DEFFOGER/ANTENNA MODULE
REAR WINDOW ANTENNA GRID
TEST
1
2
3
4
5
ACTION
Inspect the vehicle to identify the type of antenna.
Is this vehicle equiped with a Fixed Mast Antenna?
Yes
→ Go To
2
No
→ Go To
3
Refer to Audio System and use the Service Information to test the Fixed Mast
Antenna.
Is the Fixed Mast Antenna ok?
Yes
→ Test Complete.
No
→ Refer to Audio System and perform the antenna ohmmeter test in
accordance with the Service Information.
Perform the Body Verification Test - Ver 1.
Refer to Audio System and use the service information to test the Rear Window
Deffoger/Antenna Module.
Was the Rear Window Deffoger/Antenna Module ok?
Yes
→ Go To
No
→ Replace the Rear Deffoger/Antenna Module.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
All
All
4
Refer to Audio System and use the service information to test the Rear Window
Antenna Grid.
Is the Rear Window Antenna Grid ok?
Yes
→ Go To
No
→ Repair or replace the Rear Window Antenna Grid as necessary.
Perform the Body Verification Test - Ver 1.
All
5
All
Turn ignition off.
Disconnect the Power Amplifier connectors.
Inspect the Power Amplifier connections.
Are the connections clean and tight?
Yes
→ Go To
No
→ Repair as needed.
Perform the Body Verification Test - Ver 1.
6
151
AUDIO
*POOR SOUND FROM ALL SPEAKERS —
Continued
TEST
ACTION
APPLICABILITY
6
Disconnect the Rear Window Defogger/Antenna Module connector.
Turn ignition on.
Measure the voltage of the fused ignintion switch output run/acc circuit in the Rear
Window Defogger/Antenna Module connector.
Is the voltage above 10.5 volts?
All
7
Yes
→ Go To
No
→ Repair the open fused ignition switch output circuit between the
Rear Window Defogger/Antenna Module connector and splice.
Perform the Body Verification Test - Ver 1.
7
Turn ignition off.
Disconnect the Rear Window Defogger/Antenna Module connector.
Measure the resistance of the Antenna Module Ground circuit.
Is the resistance above 5.0 ohms?
Yes
→ Repair open Rear Window Defogger/Antenna Module ground
circuit.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
152
All
CHIME
Symptom:
CHIME INOPERATIVE AT ALL TIMES
POSSIBLE CAUSES
ACTUATES OK
BODY CONTROL MODULE - CHIME INOPERATIVE
TEST
1
ACTION
Turn the ignition on.
Close all doors.
With the DRBIIIt, actuate the Chime.
Does the chime sound when actuated by the DRB?
Yes
→ The chime operates as it should. Check other reasons for the
chime being inoperative and select from the symptom list.
No
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
153
APPLICABILITY
All
CHIME
Symptom:
CHIME INOPERATIVE WITH DRIVERS SEAT BELT UNFASTENED
POSSIBLE CAUSES
SEAT BELT SWITCH STATUS WRONG
GROUND WIRE OPEN
SEAT BELT SWITCH SENSE WIRE SHORT TO VOLTAGE
SEAT BELT SWITCH SENSE WIRE OPEN
SEAT BELT SWITCH OPEN
BODY CONTROL MODULE - SEAT BELT SENSE OPEN
TEST
ACTION
APPLICABILITY
1
Disconnect the Seat Belt Switch connector.
Turn all lights off. Trip the door lock latch to turn the courtesy lamps off.
Measure the resistance of the Ground circuit in the Seat Belt connector to ground.
Is the resistance below 5.0 ohms?
All
2
3
4
Yes
→ Go To
No
→ Repair the open Ground wire.
Perform the Body Verification Test - Ver 1.
2
Disconnect the Seat Belt Switch connector.
Turn the ignition on.
Measure the voltage between the Seat Belt Switch Sense circuit and ground.
Is the voltage above 5.3 volts?
Yes
→ Repair the Seat Belt Switch Sense wire for a short to voltage. If
Okay, replace the Body Control Module.
Perform the Body Verification Test - Ver 1
No
→ Go To
All
3
Ensure the drivers seat belt is Not fastened.
With the DRB III select: 9Body9 9Body Computer9 9Input/Output9.
Turn the ignition on.
Read the 9Seat Belt Sw9 status.
Does the DRB III show 9Seat Belt Sw: CLOSED9?
Yes
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1
No
→ Go To
All
4
Disconnect the Seat Belt Switch connector.
Connect a jumper wire between Seat Belt Switch Sense ckt and the Ground ckt in the
Seat Belt Switch connector.
With the DRB III select: 9Body9 9Body Computer9 9Input/Output9.
Turn the ignition on.
Read the 9Seat Belt Sw9 status.
Does the DRB III show 9Seat Belt Sw: CLOSED9?
Yes
→ Replace the Seat Belt Switch.
Perform the Body Verification Test - Ver 1
No
→ Go To
5
154
All
CHIME
CHIME INOPERATIVE WITH DRIVERS SEAT BELT UNFASTENED —
Continued
TEST
ACTION
APPLICABILITY
5
Turn the ignition off.
Disconnect the Body Control Module 9C49 connector.
Disconnect the Seat Belt Switch connector.
Measure the resistance of the Seat Belt Switch Sense circuit between the BCM 9C49
connector and the Seat Belt Switch connector..
Is the resistance below 5.0 ohms?
All
6
Yes
→ Go To
No
→ Repair the open Seat Belt Switch Sense wire.
Perform the Body Verification Test - Ver 1
6
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
155
CHIME
Symptom:
CHIME INOPERATIVE WITH VEHICLE SPEED ABOVE 75 MPH (120
KPH)
POSSIBLE CAUSES
ACTUATES OK
GULF COAST CODE IN BCM
CHECK PCM DTC’S
BODY CONTROL MODULE - CHIME INOPERATIVE
TEST
1
2
3
ACTION
With the DRBIIIt, read the 9Country Code9 status in module display..
Is a Gulf Coast Country Code selected for the BCM?
Yes
→ Go To
No
→ Select a Gulf Coast Country Code for the Body Control Module.
APPLICABILITY
All
2
With the DRBIIIt, read Powertrain DTC’s.
Are any 9Vehicle Speed Sensor9 codes present?
Yes
→ Refer to symptom list for problems related to Powertrain.
No
→ Go To
All
3
Turn the ignition on.
Close all doors.
With the DRBIIIt, actuate the Chime.
Does the chime sound when actuated by the DRB?
Yes
→ The chime operates as it should. Check other reasons for the
chime being inoperative and select from the symptom list.
No
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
156
All
CHIME
Symptom:
CHIME SOUNDS WITH DRIVER DOOR OPEN
POSSIBLE CAUSES
KEY-IN IGN SWITCH SHORTED
KEY-IN IGN SWITCH STATUS WRONG
KEY-IN IGN SW SENSE SHORT TO GROUND
BODY CONTROL MODULE - KEY-IN IGNITION SHORTED
TEST
1
2
3
4
ACTION
Ensure all exterior lamps are off.
With the DRB III select: 9Body9 9Body Computer9 9Input/Output9.
Remove the key from the ignition switch.
Read the 9Key-In Ignition9 status.
Does the DRB III show 9Key-In Ign: CLOSED9?
Yes
→ Go To
No
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1
APPLICABILITY
All
2
Disconnect the Ignition Switch connector.
With the DRB III select: 9Body9 9Body Computer9 9Input/Output9.
Read the 9Key-In Ignition9 status.
Does the DRB III show 9Key-In Ign9 CLOSED9?
Yes
→ Go To
No
→ Replace the Ignition Switch.
Perform the Body Verification Test - Ver 1
All
3
Turn ignition off.
Disconnect the Ignition Switch connector.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance of the Key-in Ignition Switch Sense circuit to ground.
Is the resistance below 100.0 ohms?
Yes
→ Repair the Key-in Ignition Switch Sense wire for a short to
ground..
Perform the Body Verification Test - Ver 1
No
→ Go To
All
4
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
157
CHIME
Symptom:
CHIME SOUNDS WITH DRIVER SEAT BELT FASTENED
POSSIBLE CAUSES
SEAT BELT SWITCH STATUS WRONG
SEAT BELT SWITCH SHORTED
SEAT BELT SWITCH SENSE WIRE SHORT TO GROUND
BODY CONTROL MODULE - SEAT BELT SWITCH SHORTED
TEST
1
2
3
4
ACTION
Ensure the drivers seat belt is fastened.
With the DRB III select: 9Body9 9Body Computer9 9Input/Output9.
Turn the ignition on.
Read the 9Seat Belt Sw9 status.
Does the DRB III show 9Seat Belt Sw: CLOSED9?
Yes
→ Go To
No
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1
APPLICABILITY
All
2
Disconnect the Seat Belt Switch connector.
With the DRB III select: 9Body9 9Body Computer9 9Input/Output9.
Turn the ignition on.
Read the 9Seat Belt Sw9 status.
Does the DRB III show 9Seat Belt Sw: CLOSED9?
Yes
→ Go To
No
→ Replace the Seat Belt Switch.
Perform the Body Verification Test - Ver 1
All
3
Turn the ignition off.
Disconnect the Body Control Module 9C49 connector.
Disconnect the Seat Belt Switch connector.
Measure the resistance between ground and the Seat Belt Switch Sense circuit.
Is the resistance below 100.0 ohms?
Yes
→ Repair the Seat Belt Switch Sense wire for a short to ground.
Perform the Body Verification Test - Ver 1
No
→ Go To
All
4
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
158
COMMUNICATION
Symptom List:
ATC MESSAGES NOT RECEIVED
*BUS +/- SIGNALS OPEN FROM ATC
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be ATC MESSAGES NOT RECEIVED.
When Monitored and Set Condition:
ATC MESSAGES NOT RECEIVED
When Monitored:
Ignition on.
Set Condition: This code is set when the BCM has not received any PCI bus messages
from the ATC head for at least 18 seconds.
POSSIBLE CAUSES
GROUND WIRE OPEN
PCI BUS CIRCUIT OPEN
FUSED IGNITION SWITCH OUTPUT CIRCUIT SHORT TO GROUND
FUSED IGNITION SWITCH OUTPUT CKT OPEN
FUSED IGNITION SWITCH OUTPUT WIRE SHORT TO GROUND
ATC HEAD
ATC HEAD
TEST
1
2
ACTION
Test Fuse #17.
Is the fuse open?
APPLICABILITY
AIR CONDITIONING W/AUTO
TEMP CONTROL
Yes
→ Go To
2
No
→ Go To
5
AIR CONDITIONTurn the ignition off.
ING W/AUTO
Measure the resistance of the Fused Ignition Switch Output circuit to ground at the
TEMP CONTROL
J/B Fuse #17 output terminal.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the defective fuse.
Perform the Body Verification Test - Ver 1.
3
159
COMMUNICATION
ATC MESSAGES NOT RECEIVED —
Continued
TEST
ACTION
APPLICABILITY
3
Disconnect the Automatic Temperature Control Head connector.
Turn the ignition off.
Measure the resistance between Fused Ignition Switch Output circuit and ground.
Is the resistance below 5.0 ohms?
AIR CONDITIONING W/AUTO
TEMP CONTROL
4
Yes
→ Repait the Fused Ignition Switch Output wire for a short to
ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
If there are no possible causes remaining, replace the Automatic Temperature AIR CONDITIONControl Head.
ING W/AUTO
View repair options.
TEMP CONTROL
Repair
Replace the Automatic Temperature Control Head.
Perform the Body Verification Test - Ver 1.
5
6
Disconnect the Automatic Temperature Control Head connector.
Turn the ignition off.
Measure the resistance of the ground circuits (cavities 1 & 3) to ground.
Is the resistance below 5.0 ohms on both circuits?
Yes
→ Go To
No
→ Repair the open ground wire.
Perform the Body Verification Test - Ver 1.
AIR CONDITIONING W/AUTO
TEMP CONTROL
6
Ensure Junction Block Fuse #17 is installed
Disconnect the Automatic Temperature Control Head connector.
Turn the ignition on.
Measure the voltage between Fused Ignition Switch Output circuit and ground.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repait the open Fused Ignition Switch Output circuit.
Perform the Body Verification Test - Ver 1.
7
160
AIR CONDITIONING W/AUTO
TEMP CONTROL
COMMUNICATION
ATC MESSAGES NOT RECEIVED —
TEST
7
Continued
ACTION
APPLICABILITY
AIR CONDITIONConnect the DRB III to the Data Link connector
ING W/AUTO
Use Scope input cable CH7058, Cable to Probe adapter CH7062, and the red and
TEMP CONTROL
black test probes.
Connect the scope input cable to the channel one connector on the DRB III. Attach
the red and black leads and the cable to probe adapter to the scope input cable.
Select DRB Standalone.
Select lab scope.
Select Live.
Select 12 volt square wave.
Press F2 for Scope.
Press F2 and use the down arrow to set voltage range to 20 volts. Press F2 again
when complete.
Connect the Black lead to ground. Connect the Red lead to the PCI Bus circuit
Turn the ignition on.
Observe the the voltage displayed on the DRB III Lab Scope.
What is the voltage displayed on the scope?
Pulse from 0 to approximately 7.5 volts
Go To 8
Steady 0.0 volt
Repair the open PCI bus from ATC Head to the BCM.
Perform the Body Verification Test - Ver 1.
8
If there are no possible causes remaining, replace the Automatic Temperature AIR CONDITIONControl Head.
ING W/AUTO
View repair options.
TEMP CONTROL
Repair
Replace the Automatic Temperature Control Head.
Perform the Body Verification Test - Ver 1.
161
COMMUNICATION
Symptom:
BATTERY POWER TO MODULE DISCONNECTED
When Monitored and Set Condition:
BATTERY POWER TO MODULE DISCONNECTED
When Monitored:
Set Condition:
With ignition on.
The BCM receives ignition on voltage, but no battery power feed.
POSSIBLE CAUSES
CHECK THE FUSED B+ CKT (IN JUNCTION BLOCK)
WIRING HARNESS INTERMITTENT DEFECT
BODY CONTROL MODULE
TEST
1
2
3
ACTION
All
With the DRB, erase DTC’s.
Turn the ignition on.
With the DRB, read DTC’s.
Did this DTC reset?
Yes
→ Go To
2
No
→ Go To
4
APPLICABILITY
Turn the ignition off.
Remove the Body Control Module from the Junction Block.
Turn the ignition on.
Measure the voltage of the Fused B+ circuit (cavity 7) in the Junction Block Body
Control Module connector.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1.
All
3
If there are no possible causes remaining, replace the BCM.
View repair options.
All
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
4
Turn the ignition off.
Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken wires.
Note: Visually inspect the related wire harness connectors. Look for broken,
bent, pushed out, or corroded terminals.
Were any problems found?
Yes
→ Repair wiring harness/connectors as necessary.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
162
All
COMMUNICATION
Symptom:
EATX BUS COMMUNICATION FAILURE
When Monitored and Set Condition:
EATX BUS COMMUNICATION FAILURE
When Monitored:
Ignition on.
Set Condition: The BCM has not received any PCI Bus messages from the TCM for at
least 18 seconds.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE TCM
BODY CONTROL MODULE
TEST
1
2
ACTION
Turn the ignition on.
With the DRB, enter 9Transmission9.
Was the DRB able to I/D or communicate with the TCM?
Yes
→ Go To
No
→ Refer to the 9Communication9 category and perform the symptom
9No Response from TCM9.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
With the DRB, erase DTC’s.
Turn the ignition on and wait approximately 1 minute.
With the DRB, read DTC’s.
Did this DTC reset?
Yes
→ If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
163
All
COMMUNICATION
Symptom:
EEPROM CONSTANT CHECKSUM FAILURE
POSSIBLE CAUSES
EEPROM CONSTANT CHECKSUM FAILURE
TEST
1
ACTION
Connect the DRB to the Data Link connector.
Turn the ignition on.
With the DRB, Erase BCM DTC’s
Turn the ignition off then turn the ignition on.
With the DRB, read DTC’s.
Did this DTC reset?
Yes
→ Replace the Body Control Module
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
164
APPLICABILITY
All
COMMUNICATION
Symptom:
INTERNAL BASE/PREMIUM SELECT FAILURE
POSSIBLE CAUSES
INTERNAL BASE/PREMIUM SELECT FAILURE
TEST
1
ACTION
Connect the DRB to the Data Link connector.
Turn the ignition on.
With the DRB, Erase BCM DTC’s
Turn the ignition off then turn the ignition on.
With the DRB, read DTC’s.
Did this DTC reset?
Yes
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
165
APPLICABILITY
All
COMMUNICATION
Symptom List:
MHSMM MESSAGES NOT RECEIVED
*BUS +/- SIGNAL OPEN FROM MEMORY HEATED SEAT/MIRROR
MODULE
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be MHSMM MESSAGES NOT
RECEIVED.
When Monitored and Set Condition:
MHSMM MESSAGES NOT RECEIVED
When Monitored:
Ignition on.
Set Condition: This code is set if the BCM does not receive any PCI bus messages from
the MHSMM for at least 18 seconds.
POSSIBLE CAUSES
FUSED B(+) CKT OPEN
GROUND CIRCUIT OPEN
OPEN PCI BUS WIRE
BODY CONTROL MODULE
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
ACTION
Disconnect the Memory Heated Seat/Mirror Module 9C49 connector.
Measure the voltage of the Fused B(+) circuit in the MHSMM 9C49 connector.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the open Fused B(+) circuit from Junction Block circuit
breaker #2.
Perform the Memory/Heated System Verification Test - Ver 1.
APPLICABILITY
MEMORY RADIO/DRIVER
SEAT/MIRRORS
2
Turn the ignition off.
Disconnect the Memory Heated Seat/Mirror Module 9C49 connector.
Turn all accessories and courtesy lamps off.
Measure the resistance of the Ground Circuit in the MHSMM 9C49 connector to
ground.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open ground circuit.
Perform the Memory/Heated System Verification Test - Ver 1.
3
166
MEMORY RADIO/DRIVER
SEAT/MIRRORS
COMMUNICATION
MHSMM MESSAGES NOT RECEIVED —
Continued
TEST
ACTION
APPLICABILITY
3
Note: Ensure there is PCI Bus communication with other modules on the
vehicle before proceeding. If not, refer to the (Communication( category for
the related symptom.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Use Scope input cable CH7058, Cable to Probe adapter CH7062, and the red and
black test probes.
Connect the scope input cable to the channel one connector on the DRB. Attach the
red and black leads and the cable to probe adapter to the scope input cable.
Select DRB Standalone.
Select lab scope.
Select Live.
Select 12 volt square wave.
Press F2 for Scope.
Press F2 and use the down arrow to set voltage range to 20 volts. Press F2 again
when complete.
Connect the Black lead to the chassis ground. Connect the Red lead to the PCI Bus
ckt in the MHSMM connector.
Turn the ignition on.
Observe the the voltage displayed on the DRB Lab Scope.
What is the voltage displayed on the scope?
MEMORY RADIO/DRIVER
SEAT/MIRRORS
Pulse from 0 to approximately 7.5 volts
Go To 4
Steady 0 volts
Go To
4
5
If there are no possible causes remaining, view 9Repair9.
MEMORY RADIO/DRIVER
SEAT/MIRRORS
Repair
Replace the Memory Heated Seat/Mirror Module
Perform the Memory/Heated System Verification Test - Ver 1.
5
6
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Disconnect the Body Control Module 9C49 connector.
Measure the resistance of the PCI bus circuit between the BCM 9C49 connector and
the MHSMM 9C19 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open PCI bus wire from the BCM to the MHSMM.
Perform the Memory System Verification test
MEMORY RADIO/DRIVER
SEAT/MIRRORS
6
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
167
MEMORY RADIO/DRIVER
SEAT/MIRRORS
COMMUNICATION
Symptom List:
MIC MESSAGE NOT RECEIVED
*BUS +/- SIGNALS OPEN FROM INSTRUMENT CLUSTER
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be MIC MESSAGE NOT RECEIVED.
When Monitored and Set Condition:
MIC MESSAGE NOT RECEIVED
When Monitored:
Ignition on.
Set Condition: The BCM has not received any PCI Bus messages from the Instrument
Cluster for at least 14 seconds.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH ANOTHER MODULE
FUSED B(+) CIRCUIT OPEN
GROUND CIRCUIT OPEN
GROUND CIRCUIT OPEN
CHECK THE PCI BUS CIRCUIT FOR VOLTAGE
BODY CONTROL MODULE
CHECK THE PCI BUS CIRCUIT (MIC) FOR AN OPEN
TEST
1
2
ACTION
Turn the ignition on.
With the DRB, attempt to communicate with the BCM.
Was the DRB able to communicate with the BCM?
Yes
→ Go To
No
→ Refer to symptom list for problems related to PCI Bus Communication Failure in the Communication category.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
Turn the ignition off.
Disconnect the Instrument Cluster 9C29 harness connector.
Measure the voltage of the Fused B+ circuit (cavity 1).
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the Fused B+ circuit for an open.
Perform the Body Verification Test - Ver 1.
3
168
All
COMMUNICATION
MIC MESSAGE NOT RECEIVED —
TEST
3
4
5
Continued
ACTION
Turn the ignition off.
Disconnect the Instrument Cluster 9C19 harness connector.
Measure the resistance between ground and the ground circuit.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the ground circuit for an open.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
4
Turn the ignition off.
Disconnect the Instrument Cluster 9C29 harness connector.
Measure the resistance between ground and the ground circuit.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the ground circuit for an open.
Perform the Body Verification Test - Ver 1.
All
5
Disconnect the Instrument Cluster 9C19 harness connector.
Using the DRB’s oscilloscope function, select Lab Scope.
Set the voltage range to +20.0v. Set probe to x10. Set the time range to 40ms/Div.
Using the oscilloscope lead, probe the PCI Bus circuit in the Instruemnt Cluster 9C19
connector.
Turn the ignition on.
Observe the voltage display on the DRB Lab Scope.
What is the voltage display on the lab scope?
All
Pulse from 0 to approximately 7.5 volts
Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
Steady 0 volts
Go To
6
7
6
Turn the ignition off.
Disconnect the Instrument Cluster 9C19 harness connector.
Disconnect the BCM 9C19 harness connector.
Measure the resistance of the PCI Bus circuit (MIC) between the Instrument Cluster
9C19 connector and the BCM 9C19 connector (cavity 13).
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the PCI Bus circuit (MIC) for an open.
Perform the Body Verification Test - Ver 1.
All
7
If there are no possible causes remaining, replace the BCM.
View repair options.
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
169
All
COMMUNICATION
Symptom:
NO PCI MESSAGES FROM CD CHANGER
When Monitored and Set Condition:
NO PCI MESSAGES FROM CD CHANGER
When Monitored:
link connector.
With ignition on, the Radio turned on, and DRB connected to the data
Set Condition: If the DRB interrogates the CD changer and does not receive the proper
response from the CD changer.
POSSIBLE CAUSES
CD CHANGER (DIN) CABLE
CD CHANGER PCI BUS CIRCUIT OPEN
FUSED IGN RUN/ACCY CKT OPEN
RADIO GROUND CKT OPEN
BAD PCI SECTION OF CD CHANGER
TEST
1
ACTION
APPLICABILITY
CD CHANGER - 4
Turn the ignition off.
DISC IN DASH
Disconnect the DIN cable from the Radio and the CD Changer.
Visually inspect the DIN cable for damage.
In the next step check for open wires in the DIN cable.
Measure the resistance of the each DIN cable circuit between the Radio DIN cable
connector and the CD Changer DIN cable connector.
In the next step check for wires shorted to the DIN cable metal connectors.
Measure the resistance between each DIN cable circuit and the Radio Din cable
metal connector.
Is the DIN cable circuits shorted together or open ?
Yes
→ Replace the CD Changer (DIN) cable.
Perform the Body Verification Test - Ver 1.
No
→ Go To
2
170
COMMUNICATION
NO PCI MESSAGES FROM CD CHANGER —
TEST
2
Continued
ACTION
APPLICABILITY
Use Scope input cable CH7058, Cable to Probe adapter CH7062, and the red and CD CHANGER - 4
DISC IN DASH
black test probes.
Connect the scope input cable to the channel one connector on the DRB. Attach the
red and black leads and the cable to probe adapter to the scope input cable.
Select DRB Standalone.
Select lab scope.
Select Live.
Select 12 volt square wave.
Press F2 for Scope.
Press F2 and use the down arrow to set voltage range to 20 volts. Press F2 again
when complete.
Disconnect the DIN cable connector at the CD Changer.
Connect the Black lead to the chassis ground. Connect the Red lead to the PCI Bus
circuit in the CD Changer DIN Cable connector.
Turn the ignition on.
Turn the Radio and CD Changer on.
Observe the the voltage displayed on the DRB Lab Scope.
What is the voltage displayed on the scope?
Pulse from 0 to approximately 7.5 volts
Go To 3
Steady 0 volts
Replace the CD Changer Dinn Cable.
Perform the Body Verification Test - Ver 1.
3
4
5
CD CHANGER - 4
Turn ignition off.
DISC IN DASH
Disconnect the DIN cable connector at the CD Changer.
Turn ignition on.
Turn the Radio and the CD Changer on.
Measure the voltage of the fused ignition switch output circuit in the CD Changer
DIN Cable connector.
Is the voltage above 10.5 volts?
Yes
→ Go To
No
→ Replace the CD Changer (Dinn) Cable.
Perform the Body Verification Test - Ver 1.
4
CD CHANGER - 4
Turn ignition off.
DISC IN DASH
Disconnect the DIN cable at the CD Changer.
Measure the resistance of the CD Changer ground circuit in the DIN cable connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Radio.
Perform the Body Verification Test - Ver 1.
5
If there are no potential causes remaining, the CD Changer is assumed to be
defective.
View repair options.
Repair
Replace CD Chhanger.
Perform the Body Verification Test - Ver 1.
171
All
COMMUNICATION
Symptom:
OTIS MESSAGES NOT RECEIVED
When Monitored and Set Condition:
OTIS MESSAGES NOT RECEIVED
When Monitored:
With the ignition on.
Set Condition: The BCM has not received any PCI Bus messages from the Overhead
Travel Information System (OTIS) for at least 14 seconds.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE OTIS
BODY CONTROL MODULE
TEST
1
2
ACTION
Turn the ignition on.
With the DRB, enter 9Body9, 9Body Computer9 then 9OTIS9.
Was the DRB able to I/D or communicate with the OTIS?
Yes
→ Go To
No
→ Refer to the Communication category and perform the symptom
9Bus +/- Signals Open from or Blank Screen on OTIS9.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
With the DRB, erase DTC’s.
Turn the ignition on and wait approximately 1 minute.
With the DRB, read DTC’s.
Did this DTC reset?
Yes
→ If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
172
All
COMMUNICATION
Symptom:
POST FAILURE
POSSIBLE CAUSES
POST FAILURE
TEST
1
ACTION
Connect the DRB to the Data Link connector.
Turn the ignition on.
With the DRB, Erase BCM DTC’s
Turn the ignition off then turn the ignition on.
With the DRB, read DTC’s.
Did this DTC reset?
Yes
→ Replace the Body Control Module
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
173
APPLICABILITY
All
COMMUNICATION
Symptom:
SBEC BUS COMMUNICATION FAILURE
When Monitored and Set Condition:
SBEC BUS COMMUNICATION FAILURE
When Monitored:
Ignition on.
Set Condition: The BCM has not received any PCI Bus messages from the PCM for at
least 12 seconds.
POSSIBLE CAUSES
BODY CONTROL MODULE
SBEC BUS COMMUNICATION FAILURE
TEST
1
2
ACTION
Attempt to start the vehicle.
Does the vehicle start and continue to run?
APPLICABILITY
All
Yes
→ Go To
No
→ Refer to the appropriate category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
2
With the DRB, erase DTC’s.
Start the vehicle and continue to run for approximately 1 minute.
With the DRB, read DTC’s.
Did this DTC reset?
Yes
→ If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
174
All
COMMUNICATION
Symptom:
SKIM MESSAGES NOT RECEIVED
When Monitored and Set Condition:
SKIM MESSAGES NOT RECEIVED
When Monitored:
Ignition on.
Set Condition: The BCM has not received any PCI Bus messages from the Sentry Key
Immobilizer Module (SKIM) for at least 12 seconds.
POSSIBLE CAUSES
BODY CONTROL MODULE
SKIM MESSAGES NOT RECEIVED
TEST
1
2
ACTION
Attempt to start the vehicle.
Does the vehicle start and continue to run?
APPLICABILITY
All
Yes
→ Go To
No
→ Refer to the appropriate category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
2
With the DRB, erase DTC’s.
Start the vehicle and continue to run for approximately 1 minute.
With the DRB, read DTC’s.
Did this DTC reset?
Yes
→ If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
175
All
COMMUNICATION
Symptom:
*BUS +/- SIGNAL OPEN FROM SKIM
POSSIBLE CAUSES
SKIM RESPONSE FAILURE
PCI BUS OPEN CIRCUIT TO SKIM
SKIM FUSED B(+) OPEN
SKIM FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
SKIM GROUND CIRCUIT OPEN
TEST
1
2
3
4
ACTION
Turn the ignition on.
Using the DRB, attempt to communicate with SKIM.
Did you communicate with the SKIM?
No
→ Go To
Yes
→ Test Complete.
APPLICABILITY
All
2
Turn the ignition off.
Disconnect the SKIM connector.
Using a voltmeter, measure the Fused B(+) voltage at the SKIM connector.
Is the Fused B(+) above 10.0 volts?
Yes
→ Go To
No
→ Repair the open Fused B+ circuit to the SKIM.
Perform the SKIS Verification Test.
All
3
Turn the ignition off.
Disconnect the SKIM connector.
Turn the ignition on.
Using a voltmeter, measure the Fused Ignition Switch output voltage at the SKIM
connector.
Is the Fused Ignition Switch voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the open Fused Ignition Switch Output circuit.
Perform the SKIS Verification Test.
All
4
Turn the ignition off.
Disconnect the SKIM connector.
Using an ohmmmeter, measure the resistance between the SKIM ground circuit at
the SKIM connector and ground.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Sentry Key Immobilizer Module ground circuit.
Perform the SKIS Verification Test.
5
176
All
COMMUNICATION
*BUS +/- SIGNAL OPEN FROM SKIM —
Continued
TEST
ACTION
APPLICABILITY
5
Turn the ignition off.
Disconnect the Sentry Key Immobilizer Module.
Connect the DRB III to the Data Link connector.
Use Scope input cable CH7058, Cable to Probe adapter CH7062, and the red and
black test probes.
Connect the scope input cable to the channel one connector on the DRB III. Attach
the red and black leads and the cable to probe adapter to the scope input cable.
Select DRB Standalone.
Select lab scope.
Select Live.
Select 12 volt square wave.
Press F2 for Scope.
Press F2 and use the down arrow to set voltage range to 20 volts. Press F2 again
when complete.
Connect the Black lead to the SKIM ground. Connect the Red lead to the SKIM PCI
Bus circuit
Turn the ignition on.
Observe the voltage displayed on the DRB III Lab Scope.
What is the voltage displayed on the scope?
All
Pulse from 0 to approximately 7.5 volts
Replace the Sentry Key Immobilizer Module.
Perform the SKIS Verification Test.
Steady 0.0 volt
Repair the Open PCI BUS circuit to the SKIM.
Perform the SKIS Verification Test.
177
COMMUNICATION
Symptom:
*BUS +/- SIGNALS OPEN FROM OR BLANK SCREEN ON OTIS
POSSIBLE CAUSES
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
PCI BUS CIRCUIT OPEN (OTIS)
GROUND CIRCUIT OPEN
ATTEMPT TO COMMUNICATE WITH ANOTHER MODULE
CHECK THE PCI BUS CIRCUIT FOR VOLTAGE
TEST
1
2
3
ACTION
Turn the ignition on.
With the DRB, attempt to communicate with the BCM.
Was the DRB able to communicate with the BCM?
Yes
→ Go To
No
→ Refer to symptom list for problems related to PCI Bus Communication Failure in the Communication category.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
Turn the ignition off.
Disconnect the OTIS harness connector.
Turn the ignition on.
Measure the voltage of the fused ignition switch output circuit in the OTIS harness
connector.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the fused ignition switch output circuit for an open.
Perform the Body Verification Test - Ver 1.
All
3
Turn the ignition off.
Disconnect the OTIS harness connector.
Measure the resistance between ground and the OTIS ground circuit.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the ground circuit for an open.
Perform the Body Verification Test - Ver 1.
4
178
All
COMMUNICATION
*BUS +/- SIGNALS OPEN FROM OR BLANK SCREEN ON OTIS — Continued
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the OTIS module harness connector.
Turn the ignition on.
Using the DRB’s oscilloscope function, select Lab Scope.
Set the voltage range to +20.0v. Set probe to x10. Set the time range to 40ms/Div.
Using the oscilloscope lead, probe the PCI Bus circuit in the OTIS module harness
connector.
Turn the ignition on.
Observe the voltage display on the DRB Lab Scope.
What is the voltage displayed on the lab scope?
All
Pulse from 0 to approximately 7.5 volts
Replace the OTIS module.
Perform the Body Verification Test - Ver 1.
Steady 0 volts
Go To
5
5
Turn the ignition off.
Disconnect the OTIS module harness connector.
Disconnect the BCM 9C19 harness connector.
Measure the resistance of the PCI bus circuit between the OTIS module harness
connector and the BCM 9C19 harness connector.
Is the resistance below 5.0 ohms?
Yes
→ Replace the BCM.
Perform the Body Verification Test - Ver 1.
No
→ Repair the PCI Bus circuit (OTIS) for an open.
Perform the Body Verification Test - Ver 1.
179
All
COMMUNICATION
Symptom:
*DRB DISPLAYS A BLANK SCREEN
POSSIBLE CAUSES
CHECK FOR AN OPEN GROUND CIRCUIT AT DLC CONNECTOR CAVITY 4
CHECK FOR AN OPEN GROUND CIRCUIT AT DLC CONNECTOR CAVITY 5
CHECK THE FUSED B+ CIRCUIT FOR AN OPEN
TRY A DIFFERENT DRB
TRY A DIFFERENT DRB CABLE
TEST
1
2
3
4
5
ACTION
Turn the ignition off.
Disconnect the DRB from the data link connector.
Measure the resistance between ground and the ground circuit (cavity 4).
Is the resistance below 10.0 ohms?
Yes
→ Go To
No
→ Repair the ground circuit for an open.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
Turn the ignition off.
Disconnect the DRB from the data link connector.
Measure the resistance between ground and the ground circuit (cavity 5).
Is the resistance below 10.0 ohms?
Yes
→ Go To
No
→ Repair the ground circuit for an open.
Perform the Body Verification Test - Ver 1.
All
3
Remove the DRB from the data link connector.
Measure the voltage of the Fused B+ circuit (cavity 16).
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the Fused B+ circuit for an open.
Perform the Body Verification Test - Ver 1.
All
4
Try a different DRB.
Is the DRB operational?
All
Yes
→ Replace the original DRB.
Perform the Body Verification Test - Ver 1.
No
→ Go To
5
Try a different DRB cable.
Is the DRB operational?
All
Yes
→ Replace the original DRB cable.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
180
COMMUNICATION
Symptom:
*FUSED IGNITION SWITCH OUTPUT TO BCM
POSSIBLE CAUSES
CHECK FOR A SHORT TO GROUND
DISCONNECT THE JUNCTION BLOCK C11 CONNECTOR AND CHECK FOR A SHORT TO
GROUND
DISCONNECT THE JUNCTION BLOCK C4 & C7 CONNECTORS AND CHECK FOR A SHORT TO
GROUND
CHECK THE VOLTAGE SUPPLY TO FUSE #14
CHECK THE VOLTAGE SUPPLY TO THE BCM (J/B BCM CONN CAVITY 5)
REMOVE THE BCM FROM THE JUNCTION BLOCK AND CHECK FOR A SHORT TO GROUND
BODY CONTROL MODULE
BODY CONTROL MODULE
TEST
1
2
3
ACTION
Remove and inspect Fuse #14 from the Junction Block.
Is the fuse open?
Yes
→ Go To
2
No
→ Go To
7
Turn the ignition off.
Measure the resistance between ground and the Fused Ignition Switch Output
circuit at fuse #14..
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the fuse.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
All
3
Turn the ignition off.
Disconnect the Junction Block 9C119 harness connector.
Measure the resistance between ground and the Fused Ignition Switch Output
circuit at fuse #14.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the Fused Ignition Switch Output circuit for a short to
ground between the Junction Block C11 connector and the OTIS.
Perform the Body Verification Test - Ver 1.
4
181
All
COMMUNICATION
*FUSED IGNITION SWITCH OUTPUT TO BCM —
Continued
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the Junction Block 9C49 harness connector.
Disconnect the Junction Block 9C79 harness connector.
Measure the resistance between ground and the Fused Ignition Switch Output
circuit at fuse #14.
Is the resistance below 5.0 ohms?
All
5
6
Yes
→ Go To
No
→ Check the schematic for other accessories that are on this circuit.
Repair the Fused Ignition Switch Output circuit for a short to
ground..
Perform the Body Verification Test - Ver 1.
5
Turn the ignition off.
Remove the Body Control Module from the Junction Block.
Measure the resistance between ground and the Fused Ignition Switch Output
circuit at fuse #14.
Is the resistance below 5.0 ohms?
Yes
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
6
If there are no possible causes remaining, replace the BCM.
View repair options.
All
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
7
8
Turn the ignition on.
Measure the voltage of the Ignition Switch Output circuit at Fuse #14.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the Ignition Switch Output circuit between the Ignition
Switch and the Junction Block for an open.
Perform the Body Verification Test - Ver 1.
All
8
Turn the ignition off.
Reinstall the fuse in the Junction Block.
Remove the Body Control Module from the Junction Block.
Note: Ensure all of the Junction Block connectors are completely connected
before continuing.
Turn the ignition on.
Measure the voltage of the Fused Ignition Switch Output circuit in the Junction
Block Body Control Module connector (cavity 5).
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1.
9
182
All
COMMUNICATION
*FUSED IGNITION SWITCH OUTPUT TO BCM —
TEST
9
Continued
ACTION
If there are no possible causes remaining, replace the BCM.
View repair options.
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
183
APPLICABILITY
All
COMMUNICATION
Symptom:
*NO RESPONSE FROM BODY CONTROL MODULE (BUS +/- SIGNAL OPEN)
POSSIBLE CAUSES
CHECK THE GROUND CIRCUIT AT THE JUNCTION BLOCK CONNECTOR C2
CHECK THE GROUND CIRCUIT AT THE JUNCTION BLOCK CONNECTOR C3
CHECK THE FUSED B+ CKT (IN JUNCTION BLOCK)
CHECK THE GROUND CIRCUIT AT THE JUNCTION BLOCK BODY CONTROL MODULE CONN
CAV 1
CHECK THE GROUND CIRCUIT AT THE JUNCTION BLOCK BODY CONTROL MODULE CONN
CAV 20
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Disconnect the Junction Block 9C29 harness connector.
Measure the resistance between ground and the ground circuit (Junction Block
Connector C2 cavity 8).
Is the resistance below 5.0 ohms?
All
2
3
Yes
→ Go To
No
→ Repair the ground circuit for an open.
Perform the Body Verification Test - Ver 1.
2
Turn the ignition off.
Disconnect the Junction Block 9C39 harness connector.
Measure the resistance between ground and the ground circuit (Junction Block
Connector C3 cavity 4).
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the ground circuit for an open.
Perform the Body Verification Test - Ver 1.
All
3
Turn the ignition off.
Remove the Body Control Module from the Junction Block.
Turn the ignition on.
Measure the voltage of the Fused B+ circuit (cavity 7) in the Junction Block Body
Control Module connector.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1.
4
184
All
COMMUNICATION
*NO RESPONSE FROM BODY CONTROL MODULE (BUS +/- SIGNAL
OPEN) — Continued
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Reconnect the Junction Block 9C29 harness connector.
Remove the Body Control Module from the Junction Block.
Measure the resistance between ground and the ground circuit (in Junction Block
Body Control Module connector cavity 1).
Is the resistance below 5.0 ohms?
All
5
6
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1.
5
Turn the ignition off.
Reconnect the Junction Block 9C39 harness connector.
Remove the Body Control Module from the Junction Block.
Measure the resistance between ground and the ground circuit (in Junction Block
Body Control Module connector cavity 20).
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1.
All
6
If there are no possible causes remaining, replace the BCM.
View repair options.
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
185
All
COMMUNICATION
Symptom:
*NO RESPONSE FROM CAB
POSSIBLE CAUSES
PCI BUS OPEN TO CAB
FUSED IGNITION SWITCH OUTPUT CIRCUIT INTERMITTENTLY SHORTED TO GROUND
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
FUSED IGNITION SWITCH OUTPUT CIRCUIT SHORTED TO GROUND
GROUND CIRCUIT OPEN
CAB DEFECTIVE - FUSED IGNITION SWITCH OUTPUT SHORTED TO GROUND
CAB DEFECTIVE - CAN NOT COMMUNICATE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
Note: As soon as one or more module communicates with the DRBIIIt,
answer the question.
With the DRBIIIt, select PASSIVE RESTRAINTS, then select AIRBAG.
With the DRBIIIt, select BODY, then select BODY CONTROL MODULE.
Were you able to establish communication with any of the modules?
All
2
3
Yes
→ Go To
No
→ Refer to symptom *PCI BUS COMMUNICATION FAILURE in
the COMMUNICATION category.
2
Turn the ignition off.
Remove and Inspect Fuse #17 in the Junction Block.
Is the Fuse blown?
Yes
→ Go To
3
No
→ Go To
7
Turn the ignition off.
Visually inspect the Fused Ignition Switch Output Circuit in the wiring harness from
the Junction Block to the CAB. Look for any sign of an intermittent short to ground.
Is the wiring harness OK?
Yes
→ Go To
No
→ Repair the Fused Ignition Switch Output Circuit for a short to
ground
Perform ABS VERIFICATION TEST.
4
186
All
All
COMMUNICATION
*NO RESPONSE FROM CAB —
Continued
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the Fuse #17 from the Junction Block.
Disconnect the CAB connector.
Note: Check connector - Clean/repair as necessary.
Using a test light connected to 12 volts, probe the Fused Ignition Switch Output
Circuit.
Is the test light on?
All
5
6
Yes
→ Repair Fused Ignition Switch Output Circuit Shorted to Ground
Perform ABS VERIFICATION TEST.
No
→ Go To
5
Turn the ignition off.
Disconnect the Fuse #17 from the Junction Block.
The CAB must be connected for the results of this test to be valid.
Using a test light connected to 12 volts, probe the Fused Ignition Switch Output
Circuit.
Is the test light on?
Yes
→ Replace the CAB.
Perform ABS VERIFICATION TEST.
No
→ Go To
All
6
Turn the ignition off.
If there are no potential causes remaining, replace the Fuse.
View repair options.
All
Repair
Test Complete.
7
Turn the ignition off.
Disconnect the CAB connector.
Note: Check connector - Clean/repair as necessary.
Disconnect BCM connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the PCI Bus Circuit between the CAB connector and the
BCM connector.
Is the resistance below 5 ohms?
Yes
→ Go To
No
→ Repair the PCI Bus Circuit Open.
Perform ABS VERIFICATION TEST.
All
8
Note: Reconnect the BCM harness connector.
8
Turn the ignition off.
Disconnect the Fuse #17 in the Junction Block.
Disconnect the CAB connector.
Note: Check connector - Clean/repair as necessary.
Measure the resistance of the Fused Ignition Switch Output circuit between the
Junction Block Fuse Terminal and the CAB connector.
Is the resistance below 5 ohms?
Yes
→ Go To
No
→ Repair Fused Ignition Switch Output Circuit Open
Perform ABS VERIFICATION TEST.
9
187
All
COMMUNICATION
*NO RESPONSE FROM CAB —
TEST
9
10
Continued
ACTION
Turn the ignition off.
Disconnect the CAB connector.
Note: Check connector - Clean/repair as necessary.
Measure the resistance of the ground circuits.
Is the resistance below 1.0 ohm?
Yes
→ Go To
No
→ Repair Ground Circuit Open.
Perform ABS VERIFICATION TEST.
APPLICABILITY
All
10
If there are no potential causes remaining, replace the CAB.
View repair options.
Repair
Replace the CAB.
Perform ABS VERIFICATION TEST.
188
All
COMMUNICATION
Symptom:
*NO RESPONSE FROM LEFT SIACM
POSSIBLE CAUSES
PCI BUS CIRCUIT OPEN
CASE GROUND CIRCUIT OPEN
GROUND CIRCUIT OPEN
LSIACM GROUND CIRCUIT OPEN
FUSED IGNITION SWITCH OUTPUT RUN/START CIRCUIT OPEN
INTERROGRATE ORC
LSIACM, NO RESPONSE FROM LEFT SIACM
TEST
1
2
ACTION
Note: Ensure that the battery is fully charged.
Turn the ignition on.
With the DRBIIIt select 9AIRBAG9.
With the DRBIIIt, read the ORC 9ACTIVE9 DTC’s.
Does the DRBIIIt display 9NO RESPONSE9?
Yes
→ Refer to symptom list for problems related to 9No RESPONSE
form ORC9.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
All
2
Turn ignition off.
Disconnect the negative battery terminal.
Disconnect the Left Side Impact Airbag Control Module connector.
Disconnect the DRB.
Measure the resistance of the PCI Bus circuit between the Data Link connector and
Left Side Impact Airbag Control Module connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair open Left Side Impact Airbag Control Module PCI Bus
circuit.
Perform the Airbag Verification Test - Ver 1.
3
Note: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.
189
All
COMMUNICATION
*NO RESPONSE FROM LEFT SIACM —
Continued
TEST
ACTION
APPLICABILITY
3
Note: Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Disconnect the Left Side Impact Airbag Control Module Connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between the Left Side Impact Airbag Control Module pin # 6
and Ground.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To
No
→ Replace the Left Side Impact Airbag Control module (LSIACM) in
accordance with Service Instructions. WARNING: Make sure the
battery is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
4
Note: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.
4
Note: Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Disconnect the Left Side Impact Airbag Control Module Connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between the Left Side Impact Airbag Control Module ground
circuit (cavity # 6) and Ground.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open ground circuit to the Left Side Impact Airbag
Control Module.
Perform the Airbag Verification Test - Ver 1.
All
5
Note: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.
5
Note: Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Disconnect the Left Side Impact Airbag Control Module Connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between the Left Side Impact Airbag Control Module ground
circuit (cavity # 5) and Ground.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open ground circuit to the Left Side Impact Airbag
Control Module cavity # 5.
Perform the Airbag Verification Test - Ver 1.
6
Note: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.
190
All
COMMUNICATION
*NO RESPONSE FROM LEFT SIACM —
Continued
TEST
ACTION
APPLICABILITY
6
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Disconnect the Left Side Impact Airbag Control Module connector.
Note: Check connectors - Clean / repair as necessary.
Turn Ignition On and then reconnect the Battery.
Using a Voltmeter, measure the Fused Ignition Switch Output Run/Start circuit from
the Left Side Impact Airbag Control Module connector to ground.
Is the voltage above 4.0 volts?
All
Yes
→ Go To
No
→ Repair open Fused Ignition Switch Output Run/Start Circuit.
Perform the Airbag Verification Test - Ver 1.
7
Note: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.
Note: After testing and repairs are complete, check other modules for any
DTC’s that may have been set while performing this proceedure.
7
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Side Impact Airbag Control Module is dropped at any time,
it must be replaced.
If there are no potential causes remaining, replace the Left Side Impact Airbag
Control Module.
View repair options.
Repair
Replace the Left Side Impact Airbag Control Module (LSIACM) in
accordance with the Service information. WARNING: Make sure
the battery is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
191
All
COMMUNICATION
Symptom:
*NO RESPONSE FROM ORC
POSSIBLE CAUSES
ORC, NO RESPONSE FROM ORC
ORC GROUND CIRCUIT OPEN
CHECKING FOR VOLTAGE AT ORC
PCI BUS CIRCUIT OPEN
ORC CASE GROUND
TEST
ACTION
APPLICABILITY
1
Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Disconnect the Occupant Restraint Controller Connector.
Check connectors - Clean/repair as necessary.
Measure the resistance between the ORC Ground Circuit (cavity # 16) and Ground.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To
No
→ Repair the open Ground Circuit to the Occupant Restraint Controller.
Perform the Airbag Verification Test - Ver 1.
2
When reconnecting Airbag system components, the ignition must be turned
off and the battery must be disconnected.
2
Turn ignition off.
Disconnect the negative battery terminal.
Disconnect the Occupant Restraint Controller connector.
Disconnect the DRB.
Measure the resistance of the PCI Bus circuit between the Data Link connector and
Occupant Restraint Controller connector.
Is the resistance less than 5.0 ohms?
Yes
→ Go To
No
→ Repair open Occupant Restraint Controller PCI bus circuit.
Perform the Airbag Verification Test - Ver 1.
3
Note: When reconnecting airbag system components the Ignition must be
Off and the Battery must be disconnected. Note: If Repairs are complete,
reconnect the Junction Port and ACM.
192
All
COMMUNICATION
*NO RESPONSE FROM ORC —
Continued
TEST
ACTION
APPLICABILITY
3
Note: Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Disconnect the Occupant Restraint Controller Connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between the ORC pin # 16 and Ground.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To
No
→ Replace the Occupant Restraint Controller (ORC) in accordance
with Service Instructions. WARNING: Make sure the battery is
disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
4
When reconnecting Airbag system components, the ignition must be turned
off and the battery must be disconnected.
4
5
Turn Ignition off.
Warning: Turn Ignition OFF. Disconnect the battery and wait 2 minutes
before proceeding.
Disconnect the Occupant Restraint Controller connector.
Note: Check connectors - Clean / repair as necessary.
Turn Ignition On and then reconnect the Battery.
Measure the voltage of the Fused Ignition Switch Output Run Circuit and the Fused
Ignition Switch Output Run/Start Circuit at the Occupant Restraint Controller
connector.
NOTE: One open circuit will not cause a NO RESPONSE condition.
Is the voltage above 10.0 volts on both circuits?
Yes
→ Go To
No
→ Repair the open Fused Ignition Switch Output Run and Fused
Ignition Switch Output Run/Start circuits. Replace the fuse(s) if
necessary.
Perform the Airbag Verification Test - Ver 1.
All
5
View repair options.
All
Repair
Replace the Occupant Restraint Controller (ORC) in accordance
with Service lnstructions. WARNING: Make sure the battery is
disconnected and wait 2 minutes before proceeding. Replace
fuse(s) if necessary.
Perform the Airbag Verification Test - Ver 1.
193
COMMUNICATION
Symptom:
*NO RESPONSE FROM PCM (PCI BUS)
POSSIBLE CAUSES
FUSED B(+) CIRCUIT LESS THAN 10.0 VOLTS
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
PCM GROUND CIRCUIT(S) OPEN
PCM INTERNAL PCI BUS OPEN
PCM PCI BUS CIRCUIT OPEN
TEST
ACTION
APPLICABILITY
1
Turn Ignition On.
Note: As soon as one or more module communicates with the DRBIII,
answer the question.
With the DRBIII, Select THEFT ALARM, then select SKIM.
With the DRBIII, Select THEFT ALARM, Then select VTSS.
With the DRBIII, Select ANTI-LOCK BRAKES.
With the DRBIII, Select BODY, Then Select ELECTRO-MECHANICAL CLUSTER
(MIC).
With the DRBIII, Select PASSIVE RESTRAINTS, Then select AIRBAG.
Were you able to establish communication with any of the modules?
All
2
3
Yes
→ Go To
No
→ Refer to symptom *PCI BUS COMMUNICATION FAILURE in
the COMMUNICATION category.
2
Turn ignition off.
Disconnect the Powertrain Control Module Connector.
Note: Check connectors - Clean/repair as necessary.
Turn the ignition key on.
Use a 12 volt test light in the following step.
With the 12V test light connected to ground, probe the Fused Ignition in the PCM
Connector.
Is the test light illuminated and bright?
Yes
→ Go To
No
→ Repair the open or high resistance Fused Ignition Switch Output
Circuit between PCM & Ignition Switch.
Perform the Powertrain Verification Test - Ver 1.
All
3
Turn the Ignition Off.
Disconnect the Powertrain Control Module Connector.
Note: Check connectors - Clean/repair as necessary.
Use a 12 volt test light in the following step.
Connect the test light to Ground. Probe the B(+) Circuit in the PCM Connector.
Is the test light illuminated and bright?
No
→ Repair the fused B+ circuit for High resistance. If open circuit
PCM will show 9NO RESPONSE9
Perform Powertrain Verification Test VER-1A.
Yes
→ Go To
4
194
All
COMMUNICATION
*NO RESPONSE FROM PCM (PCI BUS) —
Continued
TEST
ACTION
APPLICABILITY
4
Turn ignition off.
Disconnect the Powertrain Control Module Connector.
Note: Check connectors - Clean/repair as necessary.
Use a 12 volt test light in the following step.
Connect 12V test light to B(+). Probe the Ground Circuits, one at a time, in the PCM
Connector.
Was the light illuminated and bright in each circuit?
All
5
Yes
→ Go To
No
→ Repair the ground(s) for an open or high resistance at the
Powertrain Control Module.
Perform the Powertrain Verification Test - Ver 1.
5
With the DRB read PCM Diagnostic Trouble Codes. This is to ensure power and
grounds to the PCM are operational.
Note: If the DRB will not read PCM DTC’s, follow the (NO RESPONSE TO
PCM (SCI only)( symptom path, if vehicle will start. For NO START Conditions follow symptom (NO RESPONSE( in Starting catagory .
Turn ignition off.
Disconnect the Powertrain Control Module.
Connect the DRBIII to the Data Link connector
Use Scope input cable CH7058, Cable to Probe adapter CH7062, and the red and
black test probes.
Connect the scope input cable to the channel one connector on the DRB. Attach the
red and black leads and the cable to probe adapter to the scope input cable.
Select DRB Standalone.
Select lab scope.
Select Live.
Select 12 volt square wave.
Press F2 for Scope.
Press F2 and use the down arrow to set voltage range to 20 volts. Press F2 again
when complete.
Connect the Black lead to the PCM ground. Connect the Red lead to the PCM PCI
Bus circuit
Turn the ignition on.
Observe the the voltage displayed on the DRB Lab Scope.
What is the voltage displayed on the scope?
All
Pulse from 0 to approximately 7.5 volts
Go To 6
Steady 0 volts
Repair the open PCI Bus circuit to PCM.
Perform Powertrain Verification Test VER-1A.
6
The Powertrain Control Module has an internal open PCI Bus and must be replaced.
View repair options.
Repair
Replace the Powertrain Control Module.
Perform Powertrain Verification Test VER-1A.
195
All
COMMUNICATION
Symptom:
*NO RESPONSE FROM RADIO
POSSIBLE CAUSES
BAD SHORTED FUSED IGNITION RUN/ACCY SECTION OF RADIO
FUSE # 4 DEFECTIVE
RADIO NO RESPONSE
FUSED IGN RUN/ACCY CKT OPEN
PCI BUS CIRCUIT OPEN
FUSED IGN RUN/ACCY SHORT TO GND
RADIO GROUND CKT OPEN
PCI SECTION OF RADIO
TEST
ACTION
APPLICABILITY
1
Turn ignition on.
Note: Once a module communicates with the DRB III, answer the question.
With the DRB III, select PASSIVE RESTRAINTS, then select AIRBAG.
With the DRB III, select BODY, then select ELECTRO/MECHANICAL CLUSTER
(MIC).
With the DRB III, select BODY, then select BODY CONTROL MODULE.
Does the DRBIII display the version and/or the part number for any of the modules?
All
2
Yes
→ Go To
No
→ Refer to the Ccommunication Catogory and perform the 9*PCI
BUS COMMUNICATION FAILURE9 symptom.
Perform the Body Verification Test - Ver 1.
2
Turn ignition off.
Remove and inspect the Junction Block Fuse # 4.
Is the fuse blown?
No
→ Go To
3
Yes
→ Go To
8
Note: Reinstall the fuse if it is not open.
196
All
COMMUNICATION
*NO RESPONSE FROM RADIO —
Continued
TEST
ACTION
APPLICABILITY
3
Use Scope input cable CH7058, Cable to Probe adapter CH7062, and the red and
black test probes.
Connect the scope input cable to the channel one connector on the DRB. Attach the
red and black leads and the cable to probe adapter to the scope input cable.
Select DRB Standalone.
Select lab scope.
Select Live.
Select 12 volt square wave.
Press F2 for Scope.
Press F2 and use the down arrow to set voltage range to 20 volts. Press F2 again
when complete.
Disconnect the radio PCI bus connector.
Connect the Black lead to the chassis ground. Connect the Red lead to the PCI Bus
circuit in the radio C3 connector.
Turn the ignition on.
Observe the the voltage displayed on the DRB Lab Scope.
What is the voltage displayed on the scope?
All
Pulse from 0 to approximately 7.5 volts
Go To 4
Steady 0 volts
Repair the open PCI bus circuit to the radio.
Perform the Body Verification Test - Ver 1.
4
5
6
Turn ignition off.
Disconnect the radio C2 connector.
Turn ignition on.
Measure the voltage of the fused ign. sw. output circuit in the radio C2 connector.
Is the voltage above 10.5 volts?
Yes
→ Go To
No
→ Repair the open fused ign. switch output circuit.
Perform the Body Verification Test - Ver 1.
All
5
Turn ignition off.
Disconnect the Radio ground strap.
Measure the resistance of the radio ground strap.
Is the resistance above 5.0 ohms?
Yes
→ Repair open radio ground circuit.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
6
Turn ignition off.
Remove the junction block fuse # 4.
Disconnect the radio C2 connector.
Measure the resistance of the fused ign. sw. output circuit in the radio C2 connector.
Is the resistance greater than 5.0 ohms?
Yes
→ Go To
No
→ Repair the fused ign. switch output circuit for a short to ground
and replace the defective fuse.
Perform the Body Verification Test - Ver 1.
7
197
All
COMMUNICATION
*NO RESPONSE FROM RADIO —
TEST
7
Continued
ACTION
If there are no potential causes remaining, the radio is assumed to be defective.
View repair options.
APPLICABILITY
All
Repair
Replace radio.
Perform the Body Verification Test - Ver 1.
8
9
Replace the juction block fuse # 4 with a known good fuse.
Turn ignition on and then back off again.
Turn radio and CD player on.
Remove and inspect the Junction Block Fuse # 4.
Is the fuse blown?
Yes
→ Go To
No
→ Test complete. The Fuse # 4 was replaced in the previous step.
Perform the Body Verification Test - Ver 1.
All
9
Use Scope input cable CH7058, Cable to Probe adapter CH7062, and the red and
black test probes.
Connect the scope input cable to the channel one connector on the DRB. Attach the
red and black leads and the cable to probe adapter to the scope input cable.
Select DRB Standalone.
Select lab scope.
Select Live.
Select 12 volt square wave.
Press F2 for Scope.
Press F2 and use the down arrow to set voltage range to 20 volts. Press F2 again
when complete.
Disconnect the radio PCI bus connector.
Connect the Black lead to the chassis ground. Connect the Red lead to the PCI Bus
circuit in the radio C3 connector.
Turn the ignition on.
Observe the the voltage displayed on the DRB Lab Scope.
What is the voltage displayed on the scope?
All
Pulse from 0 to approximately 7.5 volts
Go To 10
Steady 0 volts
Repair the open PCI bus circuit to the radio.
Perform the Body Verification Test - Ver 1.
10
Turn ignition off.
Disconnect the Radio ground strap.
Measure the resistance of the radio ground strap.
Is the resistance above 5.0 ohms?
Yes
→ Repair open radio ground circuit.
Perform the Body Verification Test - Ver 1.
No
→ Go To
11
198
All
COMMUNICATION
*NO RESPONSE FROM RADIO —
Continued
TEST
ACTION
APPLICABILITY
11
Turn ignition off.
Remove the junction block fuse # 4.
Disconnect the radio C2 connector.
Measure the resistance of the fused ign. sw. output circuit in the radio C2 connector.
Is the resistance greater than 5.0 ohms?
All
12
Yes
→ Go To
No
→ Repair the fused ign. switch output circuit for a short to ground
and replace the defective fuse.
Perform the Body Verification Test - Ver 1.
12
If there are no potential causes remaining, the radio is assumed to be defective.
View repair options.
Repair
Replace radio.
Perform the Body Verification Test - Ver 1.
199
All
COMMUNICATION
Symptom:
*NO RESPONSE FROM RIGHT SIACM
POSSIBLE CAUSES
GROUND CKT OPEN
CASE GROUND CIRCUIT OPEN
PCI BUS CIRCUIT OPEN
FUSED IGNITION SWITCH OUTPUT RUN/START CIRCUIT OPEN
INTERROGRATE ORC
RSIACM, NO RESPONSE FROM RIGHT SIACM
TEST
1
2
ACTION
Note: Ensure that the battery is fully charged.
Turn the ignition on.
With the DRBIIIt select 9AIRBAG9.
With the DRBIIIt, read the ORC 9ACTIVE9 DTC’s.
Does the DRBIIIt display 9NO RESPONSE9?
Yes
→ Refer to symptom list for problems related to 9No RESPONSE
form ORC9.
Perform the Airbag Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
All
2
Note: Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Disconnect the Right Side Impact Airbag Control Module connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between the Right Side Impact Airbag Control Module
ground circuit (cavity # 6) and Ground.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Ground Circuit at the Right Side Impact Airbag
Control Module.
Perform the Airbag Verification Test - Ver 1.
3
Note: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.
200
All
COMMUNICATION
*NO RESPONSE FROM RIGHT SIACM —
Continued
TEST
ACTION
APPLICABILITY
3
Note: Ensure that the battery is fully charged.
Warning: Turn Ignition Off, disconnect the Battery and wait 2 minutes
before proceeding.
Disconnect the Right Side Impact Airbag Control Module connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between the Right Side Impact Airbag Control Module pin #
6 and Ground.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To
No
→ Replace the Right Side Impact Airbag Control Module (RSIACM)
in accordance with Service information. WARNING: Make sure
the battery is disconnected and wait 2 minutes before proceeding.
Perform the Airbag Verification Test - Ver 1.
4
Note: When reconnecting Airbag System components, the ignition must be
turned off and the battery must be disconnected.
4
Turn ignition off.
Disconnect the negative battery terminal.
Disconnect the Right Side Impact Airbag Control Module.
Disconnect the DRB.
Measure the resistance of the PCI Bus circuit between the Data Link connector and
Right Side Impact Airbag Control Module connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair open Right Side Impact Airbag Control Module PCI Bus
circuit.
Perform the Body Verification Test - Ver 1.
All
5
Note: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.
5
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Disconnect the Right Side Impact Airbag Control Module connector.
Note: Check connectors - Clean / repair as necessary.
Turn Ignition On and then reconnect the Battery.
Using a Voltmeter, measure the Fused Ignition Switch Output Run/Start circuit from
the Right Side Impact Airbag Control Module connector to ground.
Is the voltage above 4.0 volts?
Yes
→ Go To
No
→ Repair open Fused Ignition Switch Output Run/Start Circuit to
the Right Side Impact Airbag Control Module.
Perform the Airbag Verification Test - Ver 1.
6
Note: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.
Note: After testing and repairs are complete, check other modules for any
DTC’s that may have been set while performing this proceedure.
201
All
COMMUNICATION
*NO RESPONSE FROM RIGHT SIACM —
Continued
TEST
ACTION
APPLICABILITY
6
Warning: Turn Ignition Off, Disconnect the Battery and wait 2 minutes
before proceeding.
Warning: If the Side Impact Airbag Control Module is dropped at any time,
it must be replaced.
If there are no potential causes remaining, replace the Right Side Impact Airbag
Control Module.
View repair options.
All
Repair
Replace the Right Side Impact Airbag Control Module (RSIACM)
in accordance with the Service information. WARNING: Make
sure the battery is disconnected and wait 2 minutes before
proceeding.
Perform the Airbag Verification Test - Ver 1.
Note: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
202
COMMUNICATION
Symptom:
*NO RESPONSE FROM TCM
POSSIBLE CAUSES
FUSED IGNITION SWITCH OUTPUT (RUN/ST) CIRCUIT OPEN
FUSED IGNITION SWITCH OUTPUT (START) CIRCUIT OPEN
GROUND CIRCUIT OPEN
FUSED B(+) CIRCUIT TO TCM OPEN
OTHER BUS PROBLEMS PRESENT
PCI BUS CIRCUIT OPEN
TCM (PCI BUS CIRCUIT)
TEST
1
2
3
ACTION
With the DRBIIIt, attempt to read Transmission DTC’s.
Does the DRB show 9NO RESPONSE to TCM9?
Yes
→ Go To
No
→ Test Complete.
APPLICABILITY
All
2
With the DRBIII, check all of the other modules on the vehicle for evidence of a
vehicle bus problem.
Bus related DTC’s in other modules point to an overall vehicle bus problem. Other
symptoms such as a customer complaint of intermittent operation of bus controlled
features also indicate a bus problem.
Does the PRNDL display indicate 9No Bus9 or is there any evidence of an overall
vehicle bus problem?
Yes
→ Diagnose and repair other bus problems as necessary.
Perform the 42LE Transmission Verification Test - Ver 1.
No
→ Go To
All
3
Turn ignition off to the lock position.
Disconnect the Transmission Control Module (TCM).
Note: Check connectors - Clean/repair as necessary.
Connect the ground lead of a test light to a known good ground.
Turn the ignition on.
Using a 12-volt Test Light connected to ground, check the Fused Ignition Switch
Output (Run/St) circuit in the TCM connector.
Note: The light must illuminate brightly, if it does not light, or lights dimly,
the circuit must be repaired. If there is any doubt, compare the brightness
when testing the circuit, to the brightness when connected directly to the
battery positive post.
Does the test light illuminate brightly.
Yes
→ Go To
No
→ Repair cause of not lit or dim test light in Fused Ignition Switch
Output (Run/St) circuit.
Perform the 42LE Transmission Verification Test - Ver 1.
4
203
All
COMMUNICATION
*NO RESPONSE FROM TCM —
Continued
TEST
ACTION
APPLICABILITY
4
Turn ignition off to the lock position.
Disconnect the TCM connector.
Remove the starter relay from the PDC.
Connect the ground lead of a test light to a known good ground.
Using a 12-volt Test Light connected to ground, check the Fused Ignition Switch
Output (Start) circuit in the TCM connector.
Turn the ignition switch to the start position.
Note: The light must illuminate brightly, if it does not light, or lights dimly,
the circuit must be repaired. If there is any doubt, compare the brightness
when testing the circuit, to the brightness when connected directly to the
battery positive post.
Does the test light illuminate brightly.
All
Yes
→ Go To
No
→ Repair cause of unlit or dim test light in Fused Ignition Switch
Output (Start) circuit.
Perform the 42LE Transmission Verification Test - Ver 1.
5
Note: Reinstall the Starter Relay.
5
6
7
Turn ignition off to the lock position.
Disconnect the Transmission Control Module (TCM) harness connector.
Note: Check connectors - Clean/repair as necessary.
Connect the ground clip of a test light to a known good 12 volt source on the vehicle
such as the positive battery post.
Probe all ground circuit(s) in the TCM connector with the test light..
Does the light illuminate brightly at all ground circuits?
Yes
→ Go To
No
→ Repair the Ground circuit(s) as necessary.
Perform the 42LE Transmission Verification Test - Ver 1.
All
6
Turn ignition off to the lock position.
Disconnect the Transmission Control Module (TCM) harness connector.
Connect the ground clip of a test light to a known good ground.
Connect the other end to the Fused B(+) circuit in the TCM connector.
Does the test light illuminate brightly?
Yes
→ Go To
No
→ Repair Fused B(+) Circuit wiring and / or connectors.
Perform the 42LE Transmission Verification Test - Ver 1.
All
7
Turn ignition off to the lock position.
Disconnect the Transmission Control Module (TCM) harness connector.
Disconnect the Body Control Module (BCM) harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the PCI Bus circuit from the TCM connector to the BCM
connector.
Is the resistance above 5.0 ohms?
Yes
→ Repair the open PCI Bus circuit between the TCM and the BCM.
Perform the 42LE Transmission Verification Test - Ver 1.
No
→ Go To
8
204
All
COMMUNICATION
*NO RESPONSE FROM TCM —
TEST
8
Continued
ACTION
TheTransmission Control Module has a bus problem and must be replaced.
View repair options.
Repair
Replace the Transmission Control Module.
Perform the 42LE Transmission Verification Test - Ver 1.
205
APPLICABILITY
All
COMMUNICATION
Symptom:
*ODOMETER DISPLAYS (NO BUS(
POSSIBLE CAUSES
INSTRUMENT CLUSTER
ATTEMPT TO START THE VEHICLE
WITH THE DRB, ATTEMPT TO COMMUNICATE WITH THE INSTRUMENT CLUSTER
TEST
1
2
ACTION
Attempt to start the vehicle.
Does the vehicle start and continue to run?
APPLICABILITY
All
Yes
→ Go To
No
→ Refer to the Communication category and perform the symptom
9PCI Bus Communication Failure9.
Perform the Body Verification Test - Ver 1.
2
Turn the ignition on.
With the DRB, enter, 9Body9, 9Body Computer9 then 9Electro/Mech Cluster9.
Was the DRB able to I/D or communicate with the Instrument Cluster?
Yes
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
No
→ Refer to the Communication category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
206
All
COMMUNICATION
Symptom:
*PCI BUS COMMUNICATION FAILURE
POSSIBLE CAUSES
PCI BUS CIRCUIT SHORTED TO GROUND
PCI BUS CIRCUIT SHORTED TO VOLTAGE
HIGH VOLTAGE ON THE PCI BUS CIRCUITS AT THE BCM CONNECTORS
LOW RESISTANCE TO GROUND ON THE PCI BUS CIRCUITS AT THE BCM CONNECTORS
MODULE (PCI BUS SHORT TO GROUND)
MODULE (PCI BUS SHORT TO VOLTAGE)
BODY CONTROL MODULE
OPEN PCI BUS CIRCUIT BETWEEN THE DLC AND THE BCM
WIRING HARNESS INTERMITTENT
TEST
ACTION
APPLICABILITY
1
Note: When attempting to communicate with any of the modules on this
vehicle, the DRB will display 1 of 2 different communication errors: A (no
response( message or a (BUS +/- Signal Open( message.
Turn the ignition on.
With the DRB, attempt to communicate with the following modules: Body Control
Module (BCM), Instrument Cluster (MIC), Controller Anti-lock Brake (CAB), and the
Occupant Restraint Controller (ORC).
Was the DRB able to communicate with any of the modules listed?
All
2
3
Yes
→ Go To
2
No
→ Go To
3
Turn the ignition off.
Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken wires.
Note: Visually inspect the related wire harness connectors. Look for broken,
bent, pushed out, or corroded terminals.
Note: If the DRB can not communicate with a single module, refer to the
category list for the related symptom.
Were any problems found?
Yes
→ Repair wiring harness/connectors as necessary.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
Attempt to start the vehicle.
Does the vehicle start and continue to run?
Yes
→ Go To
4
No
→ Go To
6
All
All
207
COMMUNICATION
*PCI BUS COMMUNICATION FAILURE —
Continued
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the BCM 9C19 harness connector.
Measure the resistance of the PCI Bus (DLC) circuit between the DLC connector and
the BCM 9C19 connector cavity 14.
Is the resistance below 5.0 ohms?
All
5
Yes
→ Go To
No
→ Repair the PCI Bus (DLC) circuit for an open.
Perform the Body Verification Test - Ver 1.
5
If there are no possible causes remaining, replace the BCM.
View repair options.
All
Repair
Replace the BCM.
Perform the Body Verification Test - Ver 1.
6
7
8
Note: Reconnect any previously disconnected components or connectors.
Turn the ignition on.
Measure the voltage of the PCI Bus circuit (DLC) in the Data Link connector.
Is the voltage steadily above 7.0 volts?
Yes
→ Go To
7
No
→ Go To
9
Note: Determine which modules this vehicle is equipped with before beginning.
Turn the ignition off.
Disconnect the BCM harness connectors and remove the Body Control Module from
the Junction Block.
Turn the ignition on.
Measure the voltage of each PCI Bus circuit at the BCM 9C19, 9C39, 9C49 connectors
and at the Junction Block Body Control Module connector cavity 10.
Is the voltage steadily above 7.0 volts for any measurement?
Yes
→ Go To
No
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
All
All
8
Turn the ignition off.
Disconnect the module that corresponds to the PCI Bus circuit that measured
steadily above 7.0 volts.
Turn the ignition on.
Note: If the PCI Bus circuit for the Occupant Restraint Controller was
above 7.0 volts and is equipped with side airbags, disconnect each module
one at a time.
Measure the voltage of the PCI Bus circuit that previously measured above 7.0 volts.
Is the voltage steadily above 7.0 volts with the module disconnected?
Yes
→ Repair the PCI Bus circuit that measured over 7.0 volts for a
short to voltage.
Perform the Body Verification Test - Ver 1.
No
→ Replace the module that caused the short to voltage on the PCI
Bus circuit.
Perform the Body Verification Test - Ver 1.
208
All
COMMUNICATION
*PCI BUS COMMUNICATION FAILURE —
Continued
TEST
ACTION
APPLICABILITY
9
Note: Determine which modules this vehicle is equipped with before beginning.
Turn the ignition off.
Disconnect the negative battery cable.
Disconnect the BCM harness connectors and remove the Body Control Module from
the Junction Block.
Measure the resistance between ground and each of the PCI Bus circuits at the BCM
9C19, 9C39, 9C49 connectors and at the Junction Block Body Control Module connector
cavity 10.
Is the resistance below 1000.0 ohms for any of the measurements?
All
10
Yes
→ Go To
No
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
10
Turn the ignition off.
Disconnect the negative battery cable.
Disconnect the module that corresponds to the PCI Bus circuit that resistance
measured below 1000.0 ohms.
Note: If the PCI Bus circuit for the Occupant Restraint Controller was
below 1000.0 ohm and is equipped with side airbags, disconnect each
module one at a time.
Measure the resistance between ground and the PCI Bus circuit that previously
measured below 1000.0 ohms.
Is the resistance below 1000.0 ohms with the module disconnected?
Yes
→ Repair the PCI Bus circuit that resistance measured below 1000.0
ohms for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Replace the module that caused the short to ground on the PCI
Bus circuit.
Perform the Body Verification Test - Ver 1.
209
All
ELECTRICALLY HEATED SYSTEMS
Symptom:
DRIVER HEATED SEAT SWITCH OPEN/SHORTED TO GROUND
When Monitored and Set Condition:
DRIVER HEATED SEAT SWITCH OPEN/SHORTED TO GROUND
When Monitored:
Ignition on.
Set Condition: If the switch is open or grounded the MHSMM will have a loss of switch
feed back and this code will set immediately. Once the condition is resolved the switch will
return to it’s normal operation. The code will remain in memory for 20 key cycles.
POSSIBLE CAUSES
DRIVER HEATED SEAT SWITCH
DRIVER SEAT HEATER SWITCH MUX CIRCUIT OPEN
DRIVER SEAT HEATER SWITCH MUX CIRCUIT SHORT TO GROUND
MEMORY HEATED SEAT/MIRROR MODULE
TEST
ACTION
APPLICABILITY
1
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the voltage between the Driver Seat Heater Switch Mux circuit and ground.
Is the voltage above 10.0 volts?
All
Repair
Replace the Memory Heated Seat Module.
Perform the Memory/Heated System Verification Test - Ver 1.
No
2
3
→ Go To
2
Disconnect the Driver Heated Seat Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the resistance of the Driver Seat Heater Switch Mux circuit between the
MHSMM connector and the Driver Heated Seat Switch connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Driver Seat Heater Switch Mux wire.
Perform the Memory/Heated System Verification Test - Ver 1.
All
3
Disconnect the Driver Heated Seat Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the resistance of the Driver Seat Heater Switch Mux circuit to ground.
Is the resistance below 1000.0 ohms?
Yes
→ Repair the Driver Seat Heater Switch Mux wire for a short to
ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
4
210
All
ELECTRICALLY HEATED SYSTEMS
DRIVER HEATED SEAT SWITCH OPEN/SHORTED TO GROUND —
Continued
TEST
ACTION
APPLICABILITY
4
If there are no possible causes remaining, replace the Driver Heated Seat Switch.
View repair options.
All
Repair
Replace the Driver Heated Seat Switch.
Perform the Memory/Heated System Verification Test - Ver 1.
211
ELECTRICALLY HEATED SYSTEMS
Symptom List:
DRIVER HEATED SEAT SWITCH STUCK IN HIGH STATE
DRIVER HEATED SEAT SWITCH STUCK IN LOW STATE
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be DRIVER HEATED SEAT SWITCH
STUCK IN HIGH STATE.
When Monitored and Set Condition:
DRIVER HEATED SEAT SWITCH STUCK IN HIGH STATE
When Monitored:
Ignition on.
Set Condition: If the switch is stuck active for 30 seconds this code will set and the
MHSMM will ignore the input until it’s state has changed. The code will remain in the
module memory for 20 key cycles.
DRIVER HEATED SEAT SWITCH STUCK IN LOW STATE
When Monitored:
Ignition on.
Set Condition: If the switch is stuck active for 30 seconds this code will set and the
MHSMM will ignore the input until it’s state has changed. The code will remain in the
module memory for 20 key cycles.
POSSIBLE CAUSES
DRIVER HEATED SEAT SWITCH
DRIVER SEAT HEATER SWITCH MUX CIRCUIT SHORT TO VOLTAGE
MEMORY HEATED SEAT/MIRROR MODULE
TEST
ACTION
APPLICABILITY
1
Disconnect the Driver Heated Seat Switch connector.
With the DRBIIIt, erase DTC’s.
Turn the ignition on.
With the DRBIIIt, read DTC’s.
Does the DRBIIIt display 9Driver Heated Seat Switch Open/Shorterd to Ground9
trouble code appear?
All
Yes
→ Replace the Driver Heated Seat Switch.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
2
212
ELECTRICALLY HEATED SYSTEMS
DRIVER HEATED SEAT SWITCH STUCK IN HIGH STATE —
Continued
TEST
ACTION
APPLICABILITY
2
Disconnect the Driver Heated Seat Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the voltage between the Driver Seat Heater Switch Mux circuit and ground.
Is there any voltage present?
All
3
Yes
→ Repair the Driver Seat Heater Switch Mux wire for a short to
voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
3
If there are no possible causes remaining, replace the Memory Heated Seat/Mirror
Module.
View repair options.
Repair
Replace the Memory Heated Seat Module.
Perform the Memory/Heated System Verification Test - Ver 1.
213
All
ELECTRICALLY HEATED SYSTEMS
Symptom:
DRIVER SEAT HEAT OUTPUT OPEN
When Monitored and Set Condition:
DRIVER SEAT HEAT OUTPUT OPEN
When Monitored:
Ignition on, during the heated seat operation.
Set Condition: This code is set immediately after the Memory Heated Seat/Mirror
Module loses the seat heat element output.
POSSIBLE CAUSES
HEATED SEAT DRIVER CIRCUIT OPEN
DRIVER SEAT HEATER GROUND CKT
DRIVER HEATED SEAT CUSHION OPEN
DRIVER SEAT BACK HEATER OPEN
DRIVER SEAT HEATER SYSTEM OPEN
DRIVER SEAT HEATER B+ DRIVER WIRE OPEN
TEST
ACTION
APPLICABILITY
1
Turn ignition off.
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the seat and the Seat Heater connectors are at the
rear of the seat.
Disconnect the Memory Heated Seat/Mirror Module 9C39 connector.
Measure the total resistance of the Driver Seat Heater Circuit by connecting one lead
of the ohmmeter to the Driver Seat Heater B(+) Driver ckt in the MHSMM 9C39
connector and the other to ground.
Is the resistance below 8.5 ohms?
All
2
Yes
→ Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
2
Turn ignition off.
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the seat and the Seat Heater connectors are at the
rear of the seat.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Disconnect the Memory Heated Seat/Mirror Module 9C39 connector.
Measure the resistance of the Driver Seat Heater B(+) Driver circuit between the
MHSMM 9C39 connector and the Driver Heated Seat Cushion (harness side)
connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Driver Seat Heater B(+) Driver wire.
Perform the Memory/Heated System Verification Test - Ver 1.
3
214
All
ELECTRICALLY HEATED SYSTEMS
DRIVER SEAT HEAT OUTPUT OPEN —
Continued
TEST
ACTION
APPLICABILITY
3
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the seat and the Seat Heater connectors are at the
rear of the seat.
Disconnect the Driver Heated Seat Back 2-way connector.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Measure the resistance of the Heated Seat Driver circuit between the Driver Heated
Seat Back (harness side) connector and the Driver Heated Seat Cushion 4-way
(harness side) connector.
Is the resistance below 5.0 ohms?
All
4
5
6
Yes
→ Go To
No
→ Repair the open Heated Seat Driver circuit.
Perform the Memory/Heated System Verification Test - Ver 1.
4
NOTE: Raise the seat to the highest position to gain access to the connectors. The
HSM is located at the front of the seat and the Seat Heater connectors are at the rear
of the seat.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Measure the resistance of the CUSHION SEAT HEATER by connecting one lead to
the Heated Seat Driver terminal and the other to the Seat Heater B(+) Driver
terminal in the Heated Seat Cushion 4 way (Cushion Side) connector.
Is the resistance below 2.5 ohms?
Yes
→ Go To
No
→ Replace the Driver Heated Seat Cushion.
Perform the Memory/Heated System Verification Test - Ver 1.
All
5
NOTE: Raise the seat to the highest position to gain access to the connectors. The
HSM is located at the front of the seat and the Seat Heater connectors are at the rear
of the seat.
Disconnect the Driver Heated Seat Back 2-way connector.
Measure the resistance of the Ground circuit in the Driver Heated Seat Back
connector (harness side) to body ground.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open ground circuit.
Perform the Memory/Heated System Verification Test - Ver 1.
All
6
NOTE: Raise the seat to the highest position to gain access to the connectors. The
HSM is located at the front of the seat and the Seat Heater connectors are at the rear
of the seat.
Disconnect the Driver Heated Seat Back 2-way connector.
Measure the resistance of the SEAT BACK HEATER ELEMENT by connecting one
lead to the Heated Seat Driver terminal and the other to the Ground terminal in the
Heated Seat Back (Seat Back Side) connector.
Is the resistance below 2.0 ohms?
Yes
→ Test Complete.
No
→ Replace the Driver Heated Seat Back.
Perform the Memory/Heated System Verification Test - Ver 1.
215
All
ELECTRICALLY HEATED SYSTEMS
Symptom:
DRIVER SEAT HEAT OUTPUT SHORT TO GND
When Monitored and Set Condition:
DRIVER SEAT HEAT OUTPUT SHORT TO GND
When Monitored:
Ignition on, during the heated seat operation.
Set Condition: This code is set immediately after the Heated Seat Module detects an
output shorted to ground.
POSSIBLE CAUSES
HEATED SEAT DRIVER CIRCUIT SHORT TO GROUND
DRIVER SEAT BACK HEATER SHORT GROUND
DRIVER HEATED SEAT CUSHION SHORT TO GROUND
DRIVER SEAT HEATER B+ DRIVER WIRE SHORT TO GROUND
MEMORY HEATED SEAT/MIRROR MODULE
TEST
ACTION
APPLICABILITY
1
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the seat and the Seat Heater connectors are at the
rear of the seat.
Disconnect the Driver Heated Seat Cushion 4-way connector.
With the DRBIIIt, erase DTC’s.
Turn the ignition off, wait 20 seconds, then turn ignition on.
Turn the Driver Seat Heater on.
Using the DRBIII, select: 9Body9 9Memory Seat Module9 9Read DTC’s9
With the DRBIIIt, read DTC’s.
Does the DRBIIIt still show the 9Driver Seat Heat Output Short to Gnd9 trouble
code?
All
2
Yes
→ Go To
2
No
→ Go To
4
Turn ignition off.
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the seat and the Seat Heater connectors are at the
rear of the seat.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Disconnect the Memory Heated Seat/Mirror Module 9C39 connector.
Measure the resistance of the Driver Seat Heater B(+) Driver circuit to ground.
Is the resistance below 1000.0 ohms?
Yes
→ Repair the Driver Seat Heater B(+) Driver wire for a short to
ground..
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
3
216
All
ELECTRICALLY HEATED SYSTEMS
DRIVER SEAT HEAT OUTPUT SHORT TO GND —
TEST
3
Continued
ACTION
If there are no possible causes remaining, view 9Repair9.
APPLICABILITY
All
Repair
Replace the Memory Heated Seat/Mirror Module
Perform the Memory/Heated System Verification Test - Ver 1.
4
5
6
NOTE: Raise the seat to the highest position to gain access to the connectors. The
HSM is located at the front of the seat and the Seat Heater connectors are at the rear
of the seat.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Measure the resistance of the Driver Seat Heater B(+) Driver circuit in the Driver
Heated Seat Cushion connector (cushion side) to body ground..
Is the resistance below 100.0 ohms ohms?
Yes
→ Replace the Driver Heated Seat Cushion.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
5
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the seat and the Seat Heater connectors are at the
rear of the seat.
Disconnect the Driver Heated Seat Back 2-way connector.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Measure the resistance of the Heated Seat Driver ckt in the Driver Heated Seat Back
connector to body ground.
Is the resistance below 1000.0 ohms?
Yes
→ Repair the Heated Seat Driver ckt for a short to ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
6
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the seat and the Seat Heater connectors are at the
rear of the seat.
Disconnect the Driver Heated Seat Back 2-way connector.
Measure the resistance of the Heated Seat Driver circuit, in the Heated Seat Back
connector (seat back side) to body ground. .
Is the resistance below 1000.0 ohms?
Yes
→ Replace the Driver Heated Seat Back.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Test Complete.
217
All
ELECTRICALLY HEATED SYSTEMS
Symptom:
DRIVER THERMISTOR OUT OF RANGE HIGH
When Monitored and Set Condition:
DRIVER THERMISTOR OUT OF RANGE HIGH
When Monitored:
Ignition on, during the heated seat operation.
Set Condition: This code is immediately set when the Memory Heated Seat/Mirror
Module senses a greater value than the value stored in EEPROM.
POSSIBLE CAUSES
DRIVER SEAT TEMPERATURE SENSOR
DRIVER SEAT TEMP SENSOR INPUT CKT SHORT TO VOLTAGE
DRIVER SEAT TEMPERATURE 5 VOLT SUPPLY WIRE SHORT TO VOLTAGE
MEMORY HEATED SEAT/MIRROR MODULE
TEST
ACTION
APPLICABILITY
1
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the seat and the Seat Heater connectors are at the
rear of the seat.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Turn ignition on.
Turn the Driver Heated Seat Switch on.
Measure the voltage between Seat Temperature 5 Volt Supply circuit and ground.
Is the voltage above 5.5 volts?
All
2
Yes
→ Go To
2
No
→ Go To
4
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the seat and the Seat Heater connectors are at the
rear of the seat.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Disconnect the Memory Heated Seat/Mirror Module 9C29 connector.
Turn ignition on.
Measure the voltage of the Seat Temperature 5 Volt Supply circuit (in the cushion
side connector) to ground.
Is there ANY voltage on the Seat Temperature 5 Volt Supply circuit?
Yes
→ Repair the Driver Seat Temperature 5 Volt Supply ckt for a short
to voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
3
218
All
ELECTRICALLY HEATED SYSTEMS
DRIVER THERMISTOR OUT OF RANGE HIGH —
Continued
TEST
ACTION
APPLICABILITY
3
If there are no possible causes remaining, replace the Memory Heated Seat/Mirror
Module..
If there are no possible causes remaining, view 9Repair9.
All
Repair
Replace the Memory Heated Seat/Mirror Module
Perform the Memory/Heated System Verification Test - Ver 1.
4
5
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the seat and the Seat Heater connectors are at the
rear of the seat.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Turn ignition on.
Measure the voltage between Driver Seat Temperature Sensor Input circuit and
ground.
Is there ANY voltage on the Driver Seat Temperature Sensor Input circuit?
Yes
→ Repair the Driver Seat Temperature Sensor Input ckt for a short
to voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
5
If there are no possible causes remaining, replace the Driver Seat Cushion..
View repair options.
Repair
Replace the Driver Seat Cushion (sensor high).
Perform the Memory/Heated System Verification Test - Ver 1.
219
All
ELECTRICALLY HEATED SYSTEMS
Symptom:
DRIVER THERMISTOR OUT OF RANGE LOW
When Monitored and Set Condition:
DRIVER THERMISTOR OUT OF RANGE LOW
When Monitored:
Ignition on, during the heated seat operation.
Set Condition: This code is immediately set when the Memory Heated Seat/Mirror
Module senses a lesser value than the value stored in EEPROM.
POSSIBLE CAUSES
DRIVER SEAT TEMP SENSOR INPUT OPEN
DRIVER SEAT TEMP SENSOR INPUT SHORT TO GROUND
DRIVER SEAT HEATER SENSOR OPEN
DRIVER SEAT TEMP SENSOR SHORT TO GROUND
SEAT TEMPERATURE 5 VOLT WIRE OPEN
DRIVER SEAT TEMPERATURE 5 VOLT SUPPLY SHORT TO GROUND
MEMORY HEATED SEAT/MIRROR MODULE
MEMORY HEATED SEAT/MIRROR MODULE
TEST
ACTION
APPLICABILITY
1
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the seat and the Seat Heater connectors are at the
rear of the seat.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Turn ignition on.
Turn the Driver Heated Seat Switch on.
Measure the voltage of the Seat Sensor 5 Volt Supply circuit to ground.
Is the voltage below 4.5 volts?
All
2
No
→ Go To
2
Yes
→ Go To
7
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the seat and the Seat Heater connectors are at the
rear of the seat.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Turn ignition off.
Measure the resistance of the Driver Seat Temperature Sensor Input circuit from the
MHSMM connector to the driver heated seat cushion connector (harness side).
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Driver Seat Temperature Sensor Input circuit.
Perform the Memory/Heated System Verification Test - Ver 1.
3
220
All
ELECTRICALLY HEATED SYSTEMS
DRIVER THERMISTOR OUT OF RANGE LOW —
Continued
TEST
ACTION
APPLICABILITY
3
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the seat and the Seat Heater connectors are at the
rear of the seat.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Turn ignition off.
Measure the resistance of the Driver Seat Temp Sensor Input (in heated seat cushion
(cushion side) connector) to body ground.
Is the resistance below 1000.0 ohms (should be infinite)?
All
4
5
6
Yes
→ Replace the Driver Seat Cushion (sensor defective).
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
4
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the seat and the Seat Heater connectors are at the
rear of the seat.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Turn ignition off.
Measure the resistance of the Driver Seat Temperature Sensor Input circuit to
ground.
Is the resistance below 1000.0 ohms?
Yes
→ Repair the Driver Seat Temperature Sensor Input ckt for a short
to ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
5
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the seat and the Seat Heater connectors are at the
rear of the seat.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Turn ignition off.
Measure the resistance between the Driver Seat Temperature 5 Volt Supply ckt and
the Driver Seat Temperature Sensor Input ckt in the heated seat cushion (cushion
side) connector.
Is the resistance below 70000 (70K) ohms?
Yes
→ Go To
No
→ Replace the Driver Seat Cushion (sensor open).
Perform the Memory/Heated System Verification Test - Ver 1.
All
6
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
221
All
ELECTRICALLY HEATED SYSTEMS
DRIVER THERMISTOR OUT OF RANGE LOW —
Continued
TEST
ACTION
APPLICABILITY
7
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the seat and the Seat Heater connectors are at the
rear of the seat.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Disconnect the Memory Heated Seat/Mirror Module 9C29 connector.
Turn ignition off.
Measure the resistance of the Seat Sensor 5 Volt Supply circuit to ground.
Is the resistance below 1000.0 ohms (should be infinite)?
All
8
9
Yes
→ Repair the Driver Seat Temperature 5 Volt Supply for a short to
Ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
8
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the seat and the Seat Heater connectors are at the
rear of the seat.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Disconnect the Memory Heated Seat/Mirror Module 9C29 connector.
Turn ignition off.
Measure the resistance of the Seat Sensor 5 Volt Supply wire between the MHSMM
connector and the driver heated seat cushion (harness side) connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Seat Temperature 5 Volt Supply circuit.
Perform the Memory/Heated System Verification Test - Ver 1.
All
9
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
222
All
ELECTRICALLY HEATED SYSTEMS
Symptom:
PASSENGER
GROUND
HEATED
SEAT
SWITCH
OPEN/SHORTED
TO
When Monitored and Set Condition:
PASSENGER HEATED SEAT SWITCH OPEN/SHORTED TO GROUND
When Monitored:
Ignition on.
Set Condition: If the switch is open or grounded the MHSMM will have a loss of switch
feed back and this code will set immediately. Once the condition is resolved the switch will
return to it’s normal operation. The code will remain in memory for 20 key cycles.
POSSIBLE CAUSES
PASSENGER SEAT HEATER SWITCH MUX CIRCUIT OPEN
PASSENGER HEATED SEAT SWITCH
PASSENGER SEAT HEATER SWITCH MUX CIRCUIT SHORT TO GROUND
MEMORY HEATED SEAT/MIRROR MODULE
TEST
ACTION
APPLICABILITY
1
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the voltage between the Passenger Seat Heater Switch Mux circuit and
ground.
Is the voltage above 10.0 volts?
All
2
3
Yes
→ Replace the Memory Heated Seat Module.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
2
Disconnect the Passenger Heated Seat Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the resistance of the Passenger Seat Heater Switch Mux circuit between the
MHSMM connector and the Passenger Heated Seat Switch connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Passenger Seat Heater Switch Mux wire.
Perform the Memory/Heated System Verification Test - Ver 1.
All
3
Disconnect the Passenger Heated Seat Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the resistance of the Passenger Seat Heater Switch Mux circuit to ground.
Is the resistance below 1000.0 ohms?
Yes
→ Repair the Passenger Seat Heater Switch Mux wire for a short to
ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
4
223
All
ELECTRICALLY HEATED SYSTEMS
PASSENGER HEATED SEAT SWITCH OPEN/SHORTED TO GROUND —
Continued
TEST
ACTION
APPLICABILITY
4
If there are no possible causes remaining, replace the Driver Heated Seat Switch.
View repair options.
All
Repair
Replace the Passenger Heated Seat Switch.
Perform the Memory/Heated System Verification Test - Ver 1.
224
ELECTRICALLY HEATED SYSTEMS
Symptom List:
PASSENGER HEATED SEAT SWITCH STUCK IN HIGH STATE
PASSENGER HEATED SEAT SWITCH STUCK IN LOW STATE
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be PASSENGER HEATED SEAT
SWITCH STUCK IN HIGH STATE.
When Monitored and Set Condition:
PASSENGER HEATED SEAT SWITCH STUCK IN HIGH STATE
When Monitored:
Ignition on.
Set Condition: If the switch is stuck active for 30 seconds this code will set and the
MHSMM will ignore the input until it’s state has changed. The code will remain in the
module memory for 20 key cycles.
PASSENGER HEATED SEAT SWITCH STUCK IN LOW STATE
When Monitored:
Ignition on.
Set Condition: If the switch is stuck active for 30 seconds this code will set and the
MHSMM will ignore the input until it’s state has changed. The code will remain in the
module memory for 20 key cycles.
POSSIBLE CAUSES
PASSENGER HEATED SEAT SWITCH
PASSENGER SEAT HEATER SWITCH MUX CIRCUIT SHORT TO VOLTAGE
MEMORY HEATED SEAT/MIRROR MODULE
TEST
ACTION
APPLICABILITY
1
Disconnect the Passenger Heated Seat Switch connector.
With the DRBIIIt, erase DTC’s.
Turn the ignition on.
With the DRBIIIt, read DTC’s.
Does the DRBIIIt display 9Passenger Heated Seat Switch Open/Shorterd to Ground9
trouble code appear?
All
Yes
→ Replace the Passenger Heated Seat Switch.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
2
225
ELECTRICALLY HEATED SYSTEMS
PASSENGER HEATED SEAT SWITCH STUCK IN HIGH STATE — Continued
TEST
ACTION
APPLICABILITY
2
Disconnect the Passenger Heated Seat Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the voltage between the Passenger Seat Heater Switch Mux circuit and
ground.
Is there any voltage present?
All
3
Yes
→ Repair the Passenger Seat Heater Switch Mux wire for a short to
voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
3
If there are no possible causes remaining, replace the Memory Heated Seat/Mirror
Module.
View repair options.
Repair
Replace the Memory Heated Seat Module.
Perform the Memory/Heated System Verification Test - Ver 1.
226
All
ELECTRICALLY HEATED SYSTEMS
Symptom:
PASSENGER SEAT HEAT OUTPUT OPEN
When Monitored and Set Condition:
PASSENGER SEAT HEAT OUTPUT OPEN
When Monitored:
Ignition on, during the heated seat operation.
Set Condition: This condition is set immediately after the Memory Heated Seat/Mirror
Module loses the seat heat element output.
POSSIBLE CAUSES
PASSENGER SEAT HEATER GROUND CIRCUIT OPEN
HEATED SEAT DRIVER CIRCUIT OPEN
PASSENGER HEATED SEAT CUSHION OPEN
PASSENGER SEAT BACK HEATER OPEN
PASSENGER SEAT HEATER SYSTEM OPEN
PASSENGER SEAT HEATER B+ DRIVER WIRE OPEN
TEST
ACTION
APPLICABILITY
1
Turn ignition off.
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Memory Heated Seat/Mirror Module 9C39 connector.
Measure the total resistance of the Passenger Seat Heater Circuit by connecting one
lead of the ohmmeter to the Passenger Seat Heater B(+) Driver ckt and the other to
ground.
Is the resistance between 1.5 and 3.5 ohms?
All
2
Yes
→ Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
2
Turn ignition off.
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Back 2-way (green) connector.
Measure the resistance of the Passengerr Seat Heater Ground circuit between the
Heated Seat Back connector (harness side) and ground.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Passenger Seat Heater Ground circuit.
Perform the Memory/Heated System Verification Test - Ver 1.
3
227
All
ELECTRICALLY HEATED SYSTEMS
PASSENGER SEAT HEAT OUTPUT OPEN —
Continued
TEST
ACTION
APPLICABILITY
3
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Cushion 4-way connector.
Disconnect the Passenger Heated Seat Back 2-way (green) connector.
Measure the resistance of the Heated Seat Driver circuit between the Passenger
Heated Seat Back (harness side) connector and the Passenger Heated Seat Cushion
4-way (harness side) connector.
Is the resistance below 5.0 ohms?
All
4
5
6
Yes
→ Go To
No
→ Repair the open Heated Seat Driver circuit.
Perform the Memory/Heated System Verification Test - Ver 1.
4
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Back 2-way (green) connector.
Measure the SEAT BACK HEATER ELEMENT by connecting one lead to the Heated
Seat Driver terminal and the other to the Ground ckt in the Heated Seat Back 2-way
connector (seat back side).
Is the resistance below 2.0 ohms?
Yes
→ Go To
No
→ Replace the Passenger Heated Seat Back.
Perform the Memory/Heated System Verification Test - Ver 1.
All
5
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Cushion 4-way connector.
Measure the resistance of the CUSHION SEAT HEATER by connecting one lead to
the Heated Seat Driver terminal and the other to the Passenger Seat Heater B(+)
Driver terminal in the Heated Seat Cushion 4 way (cushion side) connector.
Is the resistance below 2.0 ohms?
Yes
→ Go To
No
→ Replace the Passenger Heated Seat Cushion.
Perform the Memory/Heated System Verification Test - Ver 1.
All
6
Turn ignition off.
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Cushion 4-way connector.
Disconnect the Memory Heated Seat/Mirror Module 9C39 connector.
Measure the resistance of the Passenger Seat Heater B(+) Driver circuit between the
MHSMM 9C39 connector and the Passenger Heated Seat Cushion (harness side)
connector.
Is the resistance below 5.0 ohms?
Yes
→ Test Complete.
No
→ Repair the open Passenger Seat Heater B(+) Driver wire.
Perform the Memory/Heated System Verification Test - Ver 1.
228
All
ELECTRICALLY HEATED SYSTEMS
Symptom:
PASSENGER SEAT HEAT OUTPUT SHORT TO GND
When Monitored and Set Condition:
PASSENGER SEAT HEAT OUTPUT SHORT TO GND
When Monitored:
Ignition on, during the heated seat operation,
Set Condition: This code is set immediately after the Memory Heated Seat/Mirror
Module detects an output shorted to ground.
POSSIBLE CAUSES
HEATED SEAT DRIVER CIRCUIT SHORT TO GROUND
PASENGER HEATED SEAT CUSHION SHORT TO GROUND
PASSENGER SEAT BACK HEATER SHORT GROUND
PASSENGER SEAT HEATER B+ DRIVER WIRE SHORT TO GROUND
MEMORY HEATED SEAT/MIRROR MODULE
TEST
ACTION
APPLICABILITY
1
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Cushion 4-way connector.
Using the DRBIII, select: 9Body9 9Memory Seat Module9 9Read DTC’s9
With the DRB III read DTC’s.
Does the DRBIIIt still show 9Passenger Seat Heat Output Short to Gnd9?
All
2
3
Yes
→ Go To
2
No
→ Go To
4
Turn ignition off.
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Cushion 4-way connector.
Disconnect the Memory Heated Seat/Mirror Module 9C39 connector.
Measure the resistance of the Passenger Seat Heater B(+) Driver circuit to body
ground.
Is the resistance below 5.0 ohms?
Yes
→ Repair the Passenger Seat Heater B(+) Driver wire for a short to
ground..
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
3
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module
Perform the Memory/Heated System Verification Test - Ver 1.
229
All
ELECTRICALLY HEATED SYSTEMS
PASSENGER SEAT HEAT OUTPUT SHORT TO GND —
Continued
TEST
ACTION
APPLICABILITY
4
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Back 2-way (green) connector.
Measure the resistance of the Heated Seat Driver circuit, in the Heated Seat Back
connector (seat back side) to body ground. .
Is the resistance below 1000.0 ohms?
All
5
6
Yes
→ Replace the Passenger Heated Seat Back.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
5
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Back 2-way (green) connector.
Disconnect the Passenger Heated Seat Cushion 4-way connector.
Measure the resistance of the Heated Seat Driver circuit in the Heated Seat Cushion
(cushion side) connector to body ground.
Is the resistance below 1000.0 ohms?
Yes
→ Repair the Heated Seat Driver ckt for a short to ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
6
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Cushion 4-way connector.
Measure the resistance of the Passenger Seat Heater B(+) Driver circuit in the
Heated Seat Cushion connector (cushion side) to body ground..
Is the resistance below 1000 ohms?
Yes
→ Replace the Passenger Heated Seat Cushion.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Test Complete.
230
All
ELECTRICALLY HEATED SYSTEMS
Symptom:
PASSENGER THERMISTOR OUT OF RANGE HIGH
When Monitored and Set Condition:
PASSENGER THERMISTOR OUT OF RANGE HIGH
When Monitored:
Ignition on, during the heated seat operation.
Set Condition: This code is immediately set when the Heated Seat Module senses a
greater value than the value stored in EEPROM.
POSSIBLE CAUSES
PASSENGER SEAT TEMP SENSOR INPUT CKT SHORT TO VOLTAGE
PASSENGER SEAT TEMPERATURE 5 VOLT SUPPLY WIRE SHORT TO VOLTAGE
PASSENGER SEAT TEMPERATURE SENSOR
MEMORY HEATED SEAT/MIRROR MODULE
TEST
ACTION
APPLICABILITY
1
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Cushion 4-way connector.
Turn ignition on.
Turn the Passenger Heated Seat Switch on.
Measure the voltage between thePassenger Seat Temperature 5 Volt Supply circuit
and ground in the harness side connector.
Is the voltage above 5.5 volts?
All
2
3
Yes
→ Go To
2
No
→ Go To
4
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Cushion 4-way connector.
Disconnect the Memory Heated Seat/Mirror Module 9C29 connector.
Turn ignition on.
Measure the voltage of the Seat Temperature 5 Volt Supply circuit ( in the cushion
side connector) to ground.
Is there ANY voltage on the Seat Temperature 5 Volt Supply circuit??
Yes
→ Repair the Passenger Seat Temperature 5 Volt Supply ckt for a
short to voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
3
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module
Perform the Memory/Heated System Verification Test - Ver 1.
231
All
ELECTRICALLY HEATED SYSTEMS
PASSENGER THERMISTOR OUT OF RANGE HIGH —
Continued
TEST
ACTION
APPLICABILITY
4
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Cushion 4-way connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Turn ignition on.
Measure the voltage between Passenger Seat Temperature Sensor Input circuit (in
the harness side connector) and body ground.
Is there ANY voltage on the Driver Seat Temperature Sensor Input circuit?
All
5
Yes
→ Repair the Passenger Seat Temperature Sensor Input ckt for a
short to voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
5
If there are no possible causes remaining, replace the Passenger Seat Cushion..
View repair options.
Repair
Replace the Passenger Seat Cushion (sensor high).
Perform the Memory/Heated System Verification Test - Ver 1.
232
All
ELECTRICALLY HEATED SYSTEMS
Symptom:
PASSENGER THERMISTOR OUT OF RANGE LOW
When Monitored and Set Condition:
PASSENGER THERMISTOR OUT OF RANGE LOW
When Monitored:
Ignition on, during the heated seat operation.
Set Condition: This code is immediately set when the Memory Heated Seat/Mirror
Module senses a lesser value than the value stored in EEPROM.
POSSIBLE CAUSES
PASSENGER SEAT TEMP SENSOR INPUT OPEN
PASSENGER SEAT TEMP SENSOR INPUT SHORT TO GROUND
PASSENGER SEAT TEMPERATURE 5 VOLT SUPPLY WIRE OPEN
PASSENGER SEAT TEMPERATURE 5 VOLT SUPPLY SHORT TO GROUND
PASSENGER SEAT HEATER SENSOR OPEN
PASSENGER SEAT TEMP SENSOR SHORT TO GROUND
MEMORY HEATED SEAT/MIRROR MODULE
MEMORY HEATED SEAT/MIRRROR MODULE
TEST
ACTION
APPLICABILITY
1
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Cushion 4-way connector.
Turn ignition on.
Measure the voltage between Seat Sensor 5 Volt Supply circuit and body ground.
Is the voltage below 4.5 volts?
All
2
No
→ Go To
2
Yes
→ Go To
7
Turn ignition off.
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Cushion 4-way connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the resistance of the Passenger Seat Temperature Sensor Input circuit from
the MHSMM connector to the passenger heated seat cushion (harness side) connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Passenger Seat Temperature Sensor Input circuit.
Perform the Memory/Heated System Verification Test - Ver 1.
3
233
All
ELECTRICALLY HEATED SYSTEMS
PASSENGER THERMISTOR OUT OF RANGE LOW —
Continued
TEST
ACTION
APPLICABILITY
3
Turn ignition off.
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Cushion 4-way connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the resistance of the Passenger Seat Temperature Sensor Input ckt to body
ground.
Is the resistance below 1000.0 ohms?
All
4
5
6
Yes
→ Repair the Passenger Seat Temperature Sensor Input ckt for a
short to ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
4
Turn ignition off.
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Cushion 4-way connector.
Measure the resistance between the Seat Temperature 5 Volt Supply ckt and the Seat
Temperature Sensor Input ckt in the heated seat cushion (cushion side) connector.
Is the resistance below 70000 (70K) ohms?
Yes
→ Go To
No
→ Replace the Passenger Seat Cushion (sensor open).
Perform the Memory/Heated System Verification Test - Ver 1.
All
5
Turn ignition off.
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Cushion 4-way connector.
Measure the resistance between the Seat Temp Sensor Input (in the heated seat
cushion (cushion side) connector) and body ground.
Is the resistance below 1000.0 ohms (should be infinite)?
Yes
→ Replace the Passenger Seat Cushion (sensor defective).
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
6
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module
Perform the Memory/Heated System Verification Test - Ver 1.
234
All
ELECTRICALLY HEATED SYSTEMS
PASSENGER THERMISTOR OUT OF RANGE LOW —
Continued
TEST
ACTION
APPLICABILITY
7
Turn ignition off.
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Cushion 4-way connector.
Disconnect the Memory Heated Seat/Mirror Module 9C29 connector.
Measure the resistance of the Seat Sensor 5 Volt Supply circuit to ground.
Is the resistance below 1000.0 ohms (should be infinite)?
All
8
9
Yes
→ Repair the Passenger Seat Temperature 5 Volt Supply for a short
to Ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
8
Turn ignition off.
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Cushion 4-way connector.
Disconnect the Memory Heated Seat/Mirror Module 9C29 connector.
Measure the resistance of the Passenger Seat Temperature 5 Volt Supply wire
between the MHSMM connector and the passenger heated seat cushion (harness
side) connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Passenger Seat Temperature 5 Volt Supply wire.
Perform the Memory/Heated System Verification Test - Ver 1.
All
9
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
235
All
ELECTRICALLY HEATED SYSTEMS
Symptom:
*REAR WINDOW DEFOGGER INOPERATIVE (MANUAL A/C)
POSSIBLE CAUSES
REAR DEFOG OPERATES OK
DEFOGGER GRID GROUND CIRCUIT OPEN
REAR WINDOW DEFOGGER GRID OPEN
REAR WINDOW DEFOGGER RELAY-OPEN
REAR DEFOGGER RELAY OUTPUT CKT OPEN
REAR WINDOW DEFOGGER RELAY CONTROL CIRCUIT OPEN
REAR WINDOW DEFOGGER RELAY OUTPUT SHORT TO GROUND
FUSED (B+) SHORT TO GROUND
FUSED B(+) CIRCUIT OPEN
CONTROL HEAD - REAR DEFOGGER SWITCH
BODY CONTROL MODULE - REAR DEFOGGER RELAY CONTROL OPEN
TEST
1
2
3
ACTION
Turn the ignition on.
With the DRBIIIt in Sensors, read the 9Mode Sw Mux 9 voltage.
Push and hold the Rear Window Defogger Switch aand observe the DRB.
Does the DRBIIIt display 9Mode Sw Mux: approx .25 volts9?
Yes
→ Go To
No
→ Replace the Control Head.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
AIR CONDITIONING
2
Measure the resistance of the Defogger Grid ground circuit from the left end of the
glass grid to ground..
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Ground circuit.
Perform the Body Verification Test - Ver 1.
All
3
Turn the ignition on.
Press the Rear Window Defogger Switch 9On9.
Using a 12-volt Test Light connected to ground, probe the Rear Defogger Relay
Output circuit at the right side of the grid.
Did the test light illuminate?
Yes
→ Repair the open Rear Window Defogger Grid.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
236
All
ELECTRICALLY HEATED SYSTEMS
*REAR WINDOW DEFOGGER INOPERATIVE (MANUAL A/C) —
TEST
4
5
6
7
8
ACTION
Remove the Rear Window Defogger Relay (located in the right side of trunk).
Measure the voltage between both Fused B(+) circuits and ground.
Is the voltage above 10.0 volts on both Fused B(+) circuits?
Yes
→ Go To
5
No
→ Go To
9
Remove the Rear Window Defogger Relay (located in the right side of trunk).
Connect a jumper wire between Rear Window Defogger Relay Output circuit and
Fused B(+) in the relay connector.
Note: Do not leave the jumper connected for a long period of time.
Measure the voltage between the Rear Window Defogger Relay Output circuit at the
right side of the window grid and ground.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the open Rear Defogger Relay Output circuit between the
relay connector and the rear defogger grid.
Perform the Body Verification Test - Ver 1.
Continued
APPLICABILITY
All
All
6
Remove the Rear Window Defogger Relay (located in the right side of trunk).
Connect a test light between the Fused B(+) and the Rear Window Defogger Relay
Control circuits in the relay connector.
Press the Rear Window Defogger Switch on and observe the test light.
Does the test light illuminate when the switch is on?
Yes
→ Replace the Rear Window Defogger Relay.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
7
Turn the ignition off.
Disconnect the Body Control Module 9C49 connector.
Remove the Rear Window Defogger Relay (located in the right side of trunk).
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Rear Window Defogger Relay Control circuit in
the BCM 9C49 connector and ground.
Measure the resistance between the Rear Window Defogger Relay Control circuit (in
the relay connector) and ground.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Rear Window Defogger Relay Control Circuit.
Perform the Body Verification Test - Ver 1.
All
8
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
9
Test the PDC 9EBL9 fuse.
Is the fuse open?
All
Yes
→ Go To
No
→ Repair the open Fused B(+) circuit from the PDC to the relay
connector.
Perform the Body Verification Test - Ver 1.
10
237
ELECTRICALLY HEATED SYSTEMS
*REAR WINDOW DEFOGGER INOPERATIVE (MANUAL A/C) —
TEST
10
11
ACTION
Remove the Rear Window Defogger Relay (located in the right side of trunk).
Measure the resistance of both Fused B(+) circuits to ground.
Is the resistance of either or both Fused B(+) circuits below 5.0 ohms?
Yes
→ Repair the Fused B(+) circuit for a short to ground and replace the
fuse.
Perform the Body Verification Test - Ver 1.
No
→ Go To
Continued
APPLICABILITY
All
11
Replace the PDC 9EBL9 fuse.
Ensure the Rear Window Defogger Relay is installed.
Turn the ignition on.
Turn the Rear Window Defogger on.
Did the Rear Window Defogger operate okay WITHOUT blowing the fuse?
Yes
→ According to your answers, the Rear Window Defogger is operating properly at this time with no problem (other than an open
fuse) found. Continue to recheck the system for an intermittent
problem.
No
→ Repair the Rear Window Defogger Relay Output circuit for a short
to ground and replace the fuse.
Perform the Body Verification Test - Ver 1.
238
All
ELECTRICALLY HEATED SYSTEMS
Symptom:
*REAR WINDOW DEFOGGER INOPERATIVE W/ATC
POSSIBLE CAUSES
REAR DEFOG OPERATES OK
DEFOGGER GRID GROUND CIRCUIT OPEN
REAR WINDOW DEFOGGER GRID OPEN
REAR WINDOW DEFOGGER RELAY-OPEN
REAR DEFOGGER RELAY OUTPUT CKT OPEN
REAR WINDOW DEFOGGER RELAY CONTROL CIRCUIT OPEN
REAR WINDOW DEFOGGER RELAY OUTPUT SHORT TO GROUND
FUSED (B+) SHORT TO GROUND
FUSED B(+) CIRCUIT OPEN
BODY CONTROL MODULE - REAR DEFOGGER RELAY CONTROL OPEN
ATC HEAD-REAR DEFOG SWITCH
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIIIt in Inputs/Outputs, read the 9EBL SW9 state.
Push and hold the Rear Window Defogger switch on and off and observe the DRB.
Does the DRBIIIt display 9EBL SW: Open/Closed9?
AIR CONDITIONING W/AUTO
TEMP CONTROL
2
3
Yes
→ Go To
No
→ Replace the Automatic Temperature Control Head.
Perform the Body Verification Test - Ver 1.
2
Measure the resistance of the Defogger Grid ground circuit from the left end of the
glass grid to ground..
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Ground circuit.
Perform the Body Verification Test - Ver 1.
All
3
Turn the ignition on.
Press the Rear Window Defogger Switch 9On9.
Using a 12-volt Test Light connected to ground, probe the Rear Defogger Relay
Output circuit at the right side of the grid.
Did the test light illuminate?
Yes
→ Repair the open Rear Window Defogger Grid.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
239
All
ELECTRICALLY HEATED SYSTEMS
*REAR WINDOW DEFOGGER INOPERATIVE W/ATC —
TEST
4
5
6
7
8
Continued
ACTION
Remove the Rear Window Defogger Relay (located in the right side of trunk).
Measure the voltage between both Fused B(+) circuits and ground.
Is the voltage above 10.0 volts on both Fused B(+) circuits?
Yes
→ Go To
5
No
→ Go To
9
Remove the Rear Window Defogger Relay (located in the right side of trunk).
Connect a jumper wire between Rear Window Defogger Relay Output circuit and
Fused B(+) in the relay connector.
Note: Do not leave the jumper connected for a long period of time.
Measure the voltage between the Rear Window Defogger Relay Output circuit at the
right side of the window grid and ground.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the open Rear Defogger Relay Output circuit between the
relay connector and the rear defogger grid.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
All
6
Remove the Rear Window Defogger Relay (located in the right side of trunk).
Connect a test light between the Fused B(+) and the Rear Window Defogger Relay
Control circuits in the relay connector.
Press the Rear Window Defogger Switch on and observe the test light.
Does the test light illuminate when the switch is on?
Yes
→ Replace the Rear Window Defogger Relay.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
7
Turn the ignition off.
Disconnect the Body Control Module 9C49 connector.
Remove the Rear Window Defogger Relay (located in the right side of trunk).
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Rear Window Defogger Relay Control circuit in
the BCM 9C49 connector and ground.
Measure the resistance between the Rear Window Defogger Relay Control circuit (in
the relay connector) and ground.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Rear Window Defogger Relay Control Circuit.
Perform the Body Verification Test - Ver 1.
All
8
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
9
Test the PDC 9EBL9 fuse.
Is the fuse open?
All
Yes
→ Go To
No
→ Repair the open Fused B(+) circuit from the PDC to the relay
connector.
Perform the Body Verification Test - Ver 1.
10
240
ELECTRICALLY HEATED SYSTEMS
*REAR WINDOW DEFOGGER INOPERATIVE W/ATC —
TEST
10
11
Continued
ACTION
Remove the Rear Window Defogger Relay (located in the right side of trunk).
Measure the resistance of both Fused B(+) circuits to ground.
Is the resistance of either or both Fused B(+) circuits below 5.0 ohms?
Yes
→ Repair the Fused B(+) circuit for a short to ground and replace the
fuse.
Perform the Body Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
All
11
Replace the PDC 9EBL9 fuse.
Ensure the Rear Window Defogger Relay is installed.
Turn the ignition on.
Turn the Rear Window Defogger on.
Did the Rear Window Defogger operate okay WITHOUT blowing the fuse?
Yes
→ According to your answers, the Rear Window Defogger is operating properly at this time with no problem (other than an open
fuse) found. Continue to recheck the system for an intermittent
problem.
No
→ Repair the Rear Window Defogger Relay Output circuit for a short
to ground and replace the fuse.
Perform the Body Verification Test - Ver 1.
241
All
EXTERIOR LIGHTING
Symptom:
HEADLAMP SWITCH INPUT FAILURE
When Monitored and Set Condition:
HEADLAMP SWITCH INPUT FAILURE
When Monitored:
Set Condition:
Ignition in run position.
The BCM detects excessive current on the fog lamp relay control circuit.
POSSIBLE CAUSES
BODY CONTROL MODULE
HEADLAMP SWITCH RETURN WIRE OPEN
HEADLAMP SWITCH MUX WIRE SHORT TO BATTERY
HEADLAMP SWITCH MUX WIRE OPEN
HEADLAMP SWITCH MUX WIRE SHORTED TO GROUND
HEADLAMP SWITCH
HEADLAMP SWITCH
BODY CONTROL MODULE
BODY CONTROL MODULE
TEST
1
2
3
ACTION
Ensure the headlamp switch is in the OFF position.
With the DRBIIIt, read the 9Headlamp Switch Voltage.
Does the DRBIIIt display Headlamp Switch Voltage: Above 4.8 Volts?
Yes
→ Go To
2
No
→ Go To
9
Turn ignition off.
Disconnect the Headlamp Switch connector.
Turn the ignition on.
Measure the voltage between Headlamp Switch Mux circuit and ground.
Is the voltage above 5.3 Volts?
Yes
→ Go To
3
No
→ Go To
5
Turn ignition off.
Disconnect the Headlamp Switch connector.
Disconnect the Body Control Module 9C29 connector.
Measure the Headlamp Switch Return ckt from the BCM 9C29 connector to the
headlamp switch connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Headlamp Switch Return wire.
Perform the Body Verification Test - Ver 1.
4
242
APPLICABILITY
All
All
All
EXTERIOR LIGHTING
HEADLAMP SWITCH INPUT FAILURE —
TEST
4
5
6
7
8
Continued
ACTION
Turn ignition off.
Disconnect the Headlamp Switch connector.
Disconnect the Body Control Module 9C29 connector.
Turn the ignition on.
Measure the voltage between Headlamp Switch Mux circuit and ground.
Is there any voltage on the Headlamp Switch Mux wire?
Yes
→ Repair the Headlamp Switch Mux wire for a short to battery.
Perform the Body Verification test.
No
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
Turn ignition off.
Disconnect the Headlamp Switch connector.
Disconnect the Body Control Module 9C29 connector.
Measure the Headlamp Switch Return ckt from the BCM 9C29 connector to the
headlamp switch connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Headlamp Switch Return wire.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
All
6
Turn ignition off.
Disconnect the Headlamp Switch connector.
Disconnect the Body Control Module 9C29 connector.
Measure the Headlamp Switch mux ckt from the BCM 9C29 connector to the
headlamp switch connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open headlamp switch mux wire.
Perform the Body Verification test.
All
7
Disconnect the Headlamp Switch connector.
Ensure the BCM 9C29 connector is connected
Connect a jumper wire between the Headlamp Switch Mux ckt and the Headlamp
Switch Return ckt in the Headlamp Switch Connector.
With the DRBIIIt, read the 9 Headlamp Switch Voltage9.
Does the DRBIIIt display Headlamp Switch Volts: 0.0 Volts9?
Yes
→ Replace the Headlamp Switch.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
8
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
243
EXTERIOR LIGHTING
HEADLAMP SWITCH INPUT FAILURE —
TEST
9
10
11
Continued
ACTION
Disconnect the Headlamp Switch connector.
With the DRBIIIt, read the 9Headlamp Switch Voltage.
Does the DRBIIIt display Headlamp Switch Voltage: Between 4.8 and 5.2 volts?
Yes
→ Replace the Headlamp Switch.
Perform the Body Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
All
10
Turn ignition off.
Disconnect the Headlamp Switch connector.
Disconnect the Body Control Module 9C29 connector.
Measure the Headlamp Switch mux ckt from the headlamp switch connector to
ground.
Is the resistance below 1000.0 ohms?
Yes
→ Repair the headlamp switch mux wire for a short to ground.
Perform the Body Verification test.
No
→ Go To
All
11
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
244
EXTERIOR LIGHTING
Symptom:
*AUTO HEADLAMPS AND OR FOG LAMPS NOT OPERATING
PROPERLY
POSSIBLE CAUSES
SENSOR GROUND WIRE OPEN
SUN SENSOR SIGNAL WIRE OPEN
SUN SENSOR SIGNAL WIRE SHORT TO GROUND
SUN SENSOR SIGNAL WIRE SHORT TO VOLTAGE
SUN SENSOR
SUN SENSOR/VTSS LED
BODY CONTROL MODULE
BODY CONTROL MODULE
BODY CONTROL MODULE
HEADLAMP SWITCH - AUTO FOG
HEADLAMP SWITCH - AUTO HEAD
TEST
ACTION
APPLICABILITY
1
Note: This test assumes that the headlamps and fog lamps operate properly
in the manual mode.
Turn the Headlamp Switch to the 9Auto9 position and fog lamps off.
With the DRBIIIt, read the 9Headlamp Switch Voltage9.
Is the voltage approximately 2.3 volts?
All
2
Yes
→ Go To
No
→ Replace the Headlamp Switch.
Perform the Body Verification Test - Ver 1.
2
Note: This test assumes that the headlamps and fog lamps operate properly
in the manual mode.
Turn the Headlamp Switch to the 9Auto9 position.
Pull the Fog Lamp Switch 9on9.
With the DRBIIIt, read the 9Headlamp Switch Voltage9.
Is the voltage approximately 3.7 volts?
Yes
→ Go To
No
→ Replace the Headlamp Switch.
Perform the Body Verification Test - Ver 1.
3
245
All
EXTERIOR LIGHTING
*AUTO HEADLAMPS AND OR FOG LAMPS NOT OPERATING PROPERLY — Continued
TEST
ACTION
APPLICABILITY
3
With the DRBIIIt, read the 9AUTO HEADLAMP SENSE VOLTS9 under sensors
while shinning a shop light on the Sun Sensor and then remove the light and cover
up the sensor.
The 9Auto Headlamp Sense9 voltage should change from approximately 0.0 to 5.0
volts, Choose outcome.
All
A. Voltage in range
Go To 4
B. Stays above 4.8 volts
Go To 5
C. Stays below 0.5 volts
Go To 10
4
If there are no possible causes remaining, view 9Repair9.
All
Repair
Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
5
6
7
Disconnect the Sun Sensor/VTSS LED 4-way connector. (See AUTO HEADLAMP
SENSOR CONNECTOR PINOUTS) (See AUTO HEADLAMP SENSOR WIRING
DIAGRAM) (See AUTO HEADLAMP SENSOR COMPONENT LOCATION)
Connect a jumper wire between the Sun Sensor Signal and the Sensor Ground
circuits in the sensor connector. (See AUTO HEADLAMP SENSOR COMPONENT
LOCATION) (See AUTO HEADLAMP SENSOR WIRING DIAGRAM) (See AUTO
HEADLAMP SENSOR CONNECTOR PINOUTS)
With the DRB III in sensors read 9Auto Headlamp sensor9 volts.
Does the DRB III show 9Auto head sensor9 volts under .5 volts?
Yes
→ Replace the Sun Sensor/VTSS LED.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
6
Disconnect the Sun Sensor/VTSS LED connector.
Disconnect the BCM C2 connector.
Measure the resistance of the Sun Sensor Signal circuit between the Sun Sensor/
VTSS LED connector and the BCM 9C29 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Sun Sensor Signal wire
Perform the Body Verification Test - Ver 1.
All
7
Disconnect the Sun Sensor/VTSS LED connector.
Disconnect the BCM C2 connector.
Measure the voltage of the Sun Sensor Signal circuit.
Is there ANY voltage on the Sun Sensor Signal circuit?
Yes
→ Repair the Sun Sensor Signal wire for a short to voltage
Perform the Body Verification Test - Ver 1.
No
→ Go To
8
246
All
EXTERIOR LIGHTING
*AUTO HEADLAMPS AND OR FOG LAMPS NOT OPERATING PROPERLY — Continued
TEST
ACTION
APPLICABILITY
8
Disconnect the Sun Sensor/VTSS LED connector.
Disconnect the BCM C1 connector.
Measure the resistance of the Sensor Ground circuit between the Sun Sensor
connector and the BCM connector.
Is the resistance below 5.0 ohms?
All
9
Yes
→ Go To
No
→ Repair the open Sensor Ground wire from the Sun Sensor
connector to the BCM.
Perform the Body Verification Test - Ver 1.
9
If there are no possible causes remaining, view 9Repair9.
All
Repair
Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
10
11
12
Disconnect the Sun Sensor/VTSS LED 4-way connector. (See AUTO HEADLAMP
SENSOR COMPONENT LOCATION) (See AUTO HEADLAMP SENSOR WIRING
DIAGRAM) (See AUTO HEADLAMP SENSOR CONNECTOR PINOUTS)
With the DRBIIIt, read the Auto Headlamp sensor volts.
Does the DRB III display Auto Headlamp sensor above 4.8 volts?
Yes
→ Replace the Sun Ssensor/VTSS LED
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
11
Disconnect the Sun Sensor/VTSS LED connector.
Disconnect the BCM C2 connector.
Measure the resistance of the Sun Sensor Signal circuit to ground.
Is the resistance below 1000.0 (1K) ohms?
Yes
→ Repair the Sun sensor Signal wire for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
12
If there are no possible causes remaining, replace the Body Control Module.
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
247
All
EXTERIOR LIGHTING
Symptom:
*FOG LAMPS WILL NOT TURN OFF
POSSIBLE CAUSES
FOG LAMP RELAY OUTPUT CIRCUIT SHORT TO VOLTAGE
BODY CONTROL MODULE
FOG LAMP RELAY
HEADLAMP SWITCH
TEST
ACTION
APPLICABILITY
1
With the DRBIIIt, read Body Control Module DTC’s. If the DTC 9Headlamp Switch
Input Failure9 is present, return to the Symptom List and select the repair for that
symptom.
Turn the headlamp switch to the off position.
With the DRBIIIt, read the Headlamp Switch Voltage.
Does the DRBIIIt display Headlamp Switch Voltage between 4.3 and 4.8 Volts?
All
2
3
4
Yes
→ Go To
No
→ Replace the Headlamp Switch.
Perform the Body Verification Test - Ver 1.
2
Remove the fog lamp relay from the Junction Block.
Did the fog lamps turn off?
Yes
→ Go To
No
→ Repair the relay output circuit for a short to voltage.
Perform the Body Verification Test - Ver 1.
All
3
Note: The Fog Lamp Relay must be removed to start this test.
Reinstall the Fog Lamp Relay and listen for or feel for the relay to 9click9.
Did the relay 9Click9?
Yes
→ Go To
No
→ Replace the Fog Lamp Relay.
Perform the Body Verification Test - Ver 1.
All
4
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
248
All
EXTERIOR LIGHTING
Symptom:
*FOG LAMPS WILL NOT TURN ON
POSSIBLE CAUSES
FUSE #16 DEFECTIVE
FOG LAMP RELAY OUTPUT CKT OPEN
FOG LAMP RELAY CTL CKT OPEN
OPEN FUSED B(+) TO FOG RELAY
OPEN FUSED B(+) TO FOG RELAY
FOG LAMP RELAY OUTPUT CKT SHORT
FOG LAMP RELAY
FOG LAMP RELAY
BODY CONTROL MODULE
HEADLAMP SWITCH
TEST
1
2
3
4
ACTION
Turn the Headlamp Switch on and pull the Fog Lamp Switch on.
With the DRBIIIt, read the 9Headlamp Switch Voltage9.
Is the voltage approximately 3.0 volts?
Yes
→ Go To
No
→ Replace the Headlamp Switch.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
Note: Ensure the headlamps (High AND low beams) operate properly before
proceeding. If they do not, return to the menu relating to Exterior Lighting
and make necessary repairs.
With the DRBIIIt, actuate the Fog Lamp Relay.
Listen to or touch the 9Fog Lamp Relay9.
Did the relay 9Click9 during the actuation?
Yes
→ Go To
3
No
→ Go To
6
Remove the Fog Lamp Relay from the Junction Block.
Measure the voltage of the Fused B(+) circuit (cavity 66 (87) to ground.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Replace the junction block.
Perform the Body Verification Test - Ver 1.
All
All
4
Remove the fog lamp relay from the Junction Block.
Connect a jumper wire between Fused B(+) circuit (cavity 66 (87)) and the Fog Lamp
Relay Output circuit (cavity 67 (30)).
Did the Fog Lamps turn on?
Yes
→ Go To
No
→ Repair the open fog lamp relay output circuit.
Perform the Body Verification Test - Ver 1.
5
249
All
EXTERIOR LIGHTING
*FOG LAMPS WILL NOT TURN ON —
TEST
5
Continued
ACTION
If there are no possible causes remaining, view 9Repair9.
APPLICABILITY
All
Repair
Replace the Fog Lamp Relay
Perform the Body Verification Test - Ver 1.
6
7
8
9
10
11
Check Junction Block fuse #16.
Is fuse #16 open?
Yes
→ Go To
7
No
→ Go To
8
All
Remove the fog lamp relay from the Junction Block.
Measure the resistance of the Fog Lamp Relay Output circuit in the relay connector
cavity 67 (30).
Is the resistance below 0.5 ohms?
Yes
→ Repair the relay output circuit for a short to ground and replace
the fuse.
Perform the Body Verification Test - Ver 1.
No
→ Replace the defective fuse.
Perform the Body Verification Test - Ver 1
Remove the Fog Lamp Relay from the Junction Block.
Measure the voltage at both Fused B(+) circuits (cavity 66 (87) and cavity 65 (85) to
ground.
Is the voltage above 10.0 volts at both terminals?
Yes
→ Go To
No
→ Replace the junction block.
Perform the Body Verification Test - Ver 1.
All
All
9
Remove the fog lamp relay from the Junction Block.
Turn ignition off. Remove the Body Control Module from the Junction Block.
Measure the resistance of the Fog Lamp Relay Control circuit between cavity 64 (86)
in the relay connector and terminal 17 in the junction block BCM connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1.
All
10
Remove the Fog Lamp Relay from the Junction Block.
Connect a 12-volt test light between the Fog Lamp Relay Control (cavity 64 (86))
circuit and the Fused B(+) (cavity 65 (85)) circuit in the Low Beam Relay connector.
With the DRBIIIt, actuate the Fog Lamp Relay.
Did the test light flash during actuation?
Yes
→ Replace the Fog Lamp Relay.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
11
If there are no possible causes remaining, view 9Repair9.
Repair
Replace Body Control Module.
Perform the Body Verification Test - Ver 1.
250
All
EXTERIOR LIGHTING
Symptom:
*HEADLAMP TIME DELAY INOPERATIVE
POSSIBLE CAUSES
BODY CONTROL MODULE
IGNITION VOLTAGE LOW
TEST
1
ACTION
Turn the ignition on.
With the DRBIIIt, read the 9Ignition Voltage9.
Does the DRBIIIt display voltage above 10.0 volts?
Yes
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
No
→ Refer to the 9Communication9 catagory and perform the symptom
9Fused ignition switch output to BCM9.
Perform the Body Verification Test - Ver 1.
251
APPLICABILITY
All
EXTERIOR LIGHTING
Symptom:
*HIGH BEAM HEADLAMPS WILL NOT TURN OFF
POSSIBLE CAUSES
HIGH BEAM RELAY OUTPUT SHORT TO VOLTAGE
SWITCHED HIGH BEAM RELAY CONTROL CIRCUIT SHORT TO VOLTAGE
MULTI-FUNCTION SWITCH
HIGH BEAM RELAY
TEST
1
2
3
4
ACTION
Remove the High beam relay from the junction block.
Did the high beam headlamps turn off?
Yes
→ Go To
No
→ Repair the High beam relay output for a short to voltage.
Perform the Body Verification Test - Ver 1
APPLICABILITY
All
2
Remove the High Beam Relay.
Measure the voltage of the High Beam Relay Control circuit in the relay connector
(cavity 57 (85)).
Is the voltage above 1.0 volts?
Yes
→ Go To
No
→ Replace the defective High Beam relay.
Perform the Body Verification Test - Ver 1
All
3
Remove the High Beam Relay from the Junction Block.
Disconnect the Multi-Function Switch connector.
Measure the voltage of the Switched High Beam Relay Control circuit to ground.
Is the voltage above 1.0 volts?
Yes
→ Repair the Switched High Beam Relay Control circuit for a short
to voltage.
Perform the Body Verification Test - Ver 1
No
→ Go To
All
4
If there are no possible causes remaining, replace the Multi-Function Switch.
View repair options.
Repair
Replace the Multi-Function Switch.
Perform the Body Verification Test - Ver 1
252
All
EXTERIOR LIGHTING
Symptom:
*HIGH BEAM HEADLAMPS WILL NOT TURN ON
POSSIBLE CAUSES
OPEN FUSED B(+)
RELAY GROUND OPEN
FUSED LOW BEAM OUTPUT CKT OPEN
FUSED LOW BEAM RELAY OUTPUT SHORT TO GROUND
SWITCHED HIGH BEAM RELAY CONTROL CIRCUIT OPEN
SWITCHED HIGH BEAM RELAY CONTROL CIRCUIT SHOT TO GROUND
HIGH BEAM RELAY OUTPUT CKT OPEN
MULTI-FUNCTION SWITCH
HI BEAM RELAY
HIGH BEAM RELAY
HIGH BEAM RELAY
TEST
ACTION
APPLICABILITY
1
Turn the headlamps on.
Gain access to the high beam headlamp relay in the Junction Block.
Cycle the high beam switch on the multi-function switch and listen to or feel the high
beam relay for a 9Click9.
Did the relay 9Click9?
All
2
3
4
Yes
→ Go To
2
No
→ Go To
5
Remove the High Beam Relay.
Measure the voltage of the Fused B(+) circuit at the High Beam Relay connector #58
(87).
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the open Fused B(+) circuit from PDC fuse 9C9.
Perform the Body Verification Test - Ver 1
All
3
Remove the High Beam relay from the Junction Block.
Connect a jumper wire between the Fused B(+) (cavity #58 (87)) and the High Beam
Relay Output (cavity #59 (30)) circuits.
Did the High Beam Headlamps come on?
Yes
→ Go To
No
→ Repair the open High Beam Relay Output circuit from the
Junction Block to the Headlamps..
Perform the Body Verification Test - Ver 1
All
4
If there are no possible causes remaining, view 9Repair9..
Repair
Replace the defective High Beam relay.
Perform the Body Verification Test - Ver 1
253
All
EXTERIOR LIGHTING
*HIGH BEAM HEADLAMPS WILL NOT TURN ON —
TEST
5
6
7
8
Continued
ACTION
Check fuse #11 in the Junction Block.
Is fuse #11 open?
Yes
→ Go To
6
No
→ Go To
9
APPLICABILITY
All
Remove fuse #11.
Disconnect the Multi-Function Switch connector.
Measure the resistance of the Fused Low Beam Relay Output circuit to ground
Is the resistance below 5.0 ohms?
Yes
→ Repair the Fused Low Beam Relay Output circuit for a short to
ground.
Perform the Body Verification Test - Ver 1
No
→ Go To
All
7
Remove the High Beam Relay from the Junction Block.
Disconnect the Multi-Function Switch connector.
Measure the resistance of the Switched High Beam Relay Control circuit to ground.
Is the resistance below 5.0 ohms?
Yes
→ Repair the Switched High Beam Relay Control circuit for a short
to ground and replace the fuse.
Perform the Body Verification Test - Ver 1
No
→ Go To
All
8
If there are no possible causes remaining, view 9Repair9.
All
Repair
Replace the High Beam Relay.
Perform the Body Verification Test - Ver 1
9
10
Remove the High Beam Relay from the Junction Block.
Measure the resistance of the Ground circuit in the relay connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open ground to the Junction Block connector.
Perform the Body Verification Test - Ver 1
All
10
Remove the High Beam Relay from the Junction Block.
Turn the headlamps on.
Connect a test light between the High Beam Relay Control (cavity 57 (85)) and the
Ground cavity 56 (86)) in the High Beam Relay connector.
Cycle the high beam switch on the multi-function switch from high to low beam and
observe the test light.
Does the test light flash when switching from low to high beams?
Yes
→ Replace the High Beam Relay.
Perform the Body Verification Test - Ver 1
No
→ Go To
11
254
All
EXTERIOR LIGHTING
*HIGH BEAM HEADLAMPS WILL NOT TURN ON —
Continued
TEST
ACTION
APPLICABILITY
11
Disconnect the Multi-Function Switch connector.
Turn the headlamps on.
Measure the voltage of the Fused Low Beam Relay Output circuit in the MultiFunction Switch connector..
Is the voltage above 10.0 volts?
All
12
13
Yes
→ Go To
No
→ Repair the open Fused Low Beam Relay Output circuit from
fuswe #11.
Perform the Body Verification Test - Ver 1
12
Disconnect the Multi-Function Switch connector.
Turn the headlamps on.
Ensure the High Beam Relay is installed.
Connect a jumper wire between Fused Low Beam Relay Output and the Switched
High Beam Relay Control circuits in the Multi-Function Switch connector.
Did the High Beam Headlamps come on?
Yes
→ Repair the open Switched High Beam Relay Control circuit.
Perform the Body Verification Test - Ver 1
No
→ Go To
All
13
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Multi-Function Switch.
Perform the Body Verification Test - Ver 1
255
All
EXTERIOR LIGHTING
Symptom:
*LOW BEAM HEADLAMPS WILL NOT TURN OFF
POSSIBLE CAUSES
LOW BEAM RELAY CTL CKT SHORTED TO GROUND
LOW BEAM RELAY OUTPUT SHT B(+)
LOW BEAM RELAY DEFECTIVE
HEADLAMP SWITCH
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
With the DRBIIIt, read Body Control Module DTC’s. If the DTC 9Headlamp Switch
Input Failure9 is present, return to the Symptom List and select the repair for that
symptom.
Turn the headlamp switch to the off position.
With the DRBIIIt, read the Headlamp Switch Voltage.
Does the DRBIIIt display Headlamp Switch Voltage between 4.3 and 4.8 Volts?
All
2
3
4
5
Yes
→ Go To
No
→ Replace the Headlamp Switch.
Perform the Body Verification Test - Ver 1.
2
Remove the low beam relay from the Junction Block.
Did the Low Beam Lamps turn off?
Yes
→ Go To
No
→ Repair the low beam relay output circuit for a short to battery
Perform the Body Verification Test - Ver 1
All
3
Substitute a known good relay in place of the Low Beam relay.
Does the system now operate correctly?
Yes
→ Replace the defective Low Beam relay.
Perform the Body Verification Test - Ver 1
No
→ Go To
All
4
Remove the Low Beam headlamp Relay.
Turn ignition off. Remove the Body Control Module from the Junction Block.
Measure the resistance of the Low Beam Relay Control circuit to all other J/B Body
Control Module 20-Way Internal connector terminals and to ground.
Is the resistance below 100.0 ohms on ANY of the measurements?
Yes
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
No
→ Go To
All
5
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Body Control Module.
Perform the Body Verification Test- Ver 1
256
All
EXTERIOR LIGHTING
Symptom:
*LOW BEAM HEADLAMPS WILL NOT TURN ON
POSSIBLE CAUSES
DEFECTIVE FUSE
OPEN FUSE B(+) TO JUNCTION BLOCK
LOW BEAM RELAY OUTPUT CKT OPEN
LOW BEAM RELAY CONTROL CIRCUIT OPEN
FUSED B(+) CIRCUIT SHORT TO GROUND
OPEN FUSED B(+)
LOW BEAM RELAY
LOW BEAM HEADLAMP RELAY
HEADLAMP SWITCH - LOW BEAMS INOPERABLE
BODY CONTROL MODULE
TEST
1
2
3
4
ACTION
Turn the headlamp switch to the on position (fog lamps off).
With the DRBIIIt, read the Headlamp Switch Voltage.
Does the DRBIIIt display Headlamp Switch Voltage between 1.4 and 1.8 Volts?
Yes
→ Go To
No
→ Replace the Headlamp Switch.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
With the DRBIIIt, actuate the Headlamp Relay.
Listen to or touch the 9Low Beam Relay9.
Did the relay 9Click9 during the actuation?
Yes
→ Go To
3
No
→ Go To
6
Remove the Low Beam Relay.
Measure the voltage of the Fused B(+) circuit in the low beam relay cavity #62 (87).
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
All
All
4
Remove the Low Beam Headlamp Relay from the Junction Block.
Ensure fuses #10 and #12 are OK and are installed in the Junction Block.
Connect a jumper wire between the Fused B(+) and the Low Beam Relay Output
terminals in the relay connector..
Did the low beam headlamps come on?
Yes
→ Go To
No
→ Repair the open Low Beam Relay Output circuit to the headlamps.
Perform the Body Verification Test - Ver 1
5
257
All
EXTERIOR LIGHTING
*LOW BEAM HEADLAMPS WILL NOT TURN ON —
TEST
5
Continued
ACTION
If there are no possible causes remaining, view 9Repair9.
APPLICABILITY
All
Repair
Replace the Low Beam Headlamp Relay.
Perform the Body Verification Test - Ver 1
6
7
8
9
Remove the Low Beam Headlamp Relay.
Measure the voltage of the Fused B(+) circuit in the low beam relay cavity #61.
Is the voltage above 10.0 volts?
Yes
→ Go To
7
No
→ Go To
10
Remove the Low Beam Headlamp Relay from the Junction Block.
Connect a 12-volt test light between the Low Beam Relay Control (cavity 60 (86))
circuit and the Fused B(+) (cavity 61 (85)) circuit in the Low Beam Relay connector.
With the DRBIIIt, actuate the Headlamp Relay.
Did the test light flash during actuation?
Yes
→ Replace the Low Beam Headlamp Relay.
Perform the Body Verification Test - Ver 1
No
→ Go To
All
All
8
Remove the Low Beam relay from the Junction Block.
Turn ignition off. Remove the Body Control Module from the Junction Block.
Using an ohmmeter measure the Low Beam Relay control circuit from relay cavity
(60 (86)) to the Junction Block Body Control Module connector cavity 14.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
All
9
If there are no possible causes remaining, view 9Repair9.
All
Repair
Replace the Body Control Module.
Perform the Body Verification Test- Ver 1
10
11
Remove and test the PDC Fuse 9D9.
Is the fuse open?
All
Yes
→ Go To
No
→ Repair the open Fused B(+) circuit between the Low Beam
Headlamp Relay connector in the Junction Block and the PDC
Fuse 9D9 connector.
Perform the Body Verification Test - Ver 1
11
Remove Fuse 9D9 from the PDC.
Measure the resistance of the Fused B(+) circuit in the fuse connector to ground.
Is the resistance below 5.0 ohms?
Yes
→ Repair the Fused B(+) cirfcuit for a short to ground.
Perform the Body Verification Test - Ver 1
No
→ Replace the fuse and retest the system..
Perform the Body Verification Test - Ver 1
258
All
EXTERIOR LIGHTING
Symptom:
*PARK LAMPS WILL NOT TURN OFF
POSSIBLE CAUSES
BODY CONTROL MODULE
PARK LAMP OUTPUT SHORT VOLTAGE
PARK LAMP RELAY
HEADLAMP SWITCH
TEST
1
2
3
ACTION
Turn the Headlamp Switch to the OFF position.
With the DRBIIIt, read the 9Headlamp Switch Voltage9.
Is the voltage approximately 4.5 volts?
Yes
→ Go To
No
→ Replace the Headlamp Switch.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
Remove the park lamp relay from the Junction Block.
Did the park lamps turn off?
Yes
→ Go To
No
→ Repair the park lamp relay output circuit for a short to voltage.
Perform the Body Verification Test - Ver 1
All
3
Remove the park lamp relay to begin this test.
Reinstall the Park Lamp Relay and listen for or feel for the relay to 9click9.
Did the relay 9Click9?
Yes
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1
No
→ Replacer the Park Lamp Relay.
Perform the Body Verification Test - Ver 1
259
All
EXTERIOR LIGHTING
Symptom:
*PARK LAMPS WILL NOT TURN ON
POSSIBLE CAUSES
FUSE OPEN
FUSED B(+) SHORT TO GROUND
PARK LAMP RELAY OUTPUT CIRCUIT OPEN
PARK LAMP RELAY OUTPUT CKT SHORT
PARK LAMP RELAY OUTPUT CKT SHORT GROUND CHECK
OPEN FUSED B(+)
PARK LAMP RELAY CTL CKT OPEN
PARK LAMP RELAY
PARK LAMP RELAY
HEADLAMP SWITCH
BODY CONTROL MODULE
BODY CONTROL MODULE
TEST
1
2
3
ACTION
Turn the Headlamp Switch to the PARK position.
With the DRBIIIt, read the 9Headlamp Switch Voltage9.
Is the voltage approximately 0.5 volts?
Yes
→ Go To
No
→ Replace the Headlamp Switch.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
With the DRBIIIt, actuate the Parklamp Relay.
Listen to or touch the 9Park Lamp Relay9.
Did the relay 9Click9 during the actuation?
Yes
→ Go To
3
No
→ Go To
6
Remove the Park Lamp Relay from the Junction Block.
Connect a jumper wire between the Fused B(+) (cav 54 (87)) and the Park Lamp
Relay Output (cav 55 (30)) terminals in the relay connector.
Did the Park Lamps come on?
Yes
→ Go To
No
→ Repair the open Park Lamp Relay Output circuit to the park
lamps.
Perform the Body Verification Test - Ver 1
4
260
All
All
EXTERIOR LIGHTING
*PARK LAMPS WILL NOT TURN ON —
Continued
TEST
ACTION
APPLICABILITY
4
Remove the Park Lamp Relay.
Measure the voltage of the Fused B(+) circuit in the park lamp relay cavity #54 (87).
Is the voltage above 10.0 volts?
All
5
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1.
5
If there are no possible causes remaining, view 9Repair9.
All
Repair
Replace the Park Lamp Relay.
Perform the Body Verification Test - Ver 1
6
7
8
9
Remove the Park Lamp Relay.
Measure the voltage of the Fused B(+) circuit in the park lamp relay cavity #53 (85).
Is the voltage above 10.0 volts?
Yes
→ Go To
7
No
→ Go To
10
Remove the Park Lamp Relay from the Junction Block.
Connect a 12-volt test light between the Park Lamp Relay Control (cavity 52 (86))
circuit and the Fused B(+) (cavity 53 (85)) circuit in the Park Lamp Relay connector.
With the DRBIIIt, actuate the Park Lamp Relay.
Did the test light flash during actuation?
Yes
→ Replace the Park Lamp Relay.
Perform the Body Verification Test - Ver 1
No
→ Go To
All
All
8
Remove the park lamp relay from the Junction Block.
Turn ignition off. Remove the Body Control Module from the Junction Block.
Measure the resistance between the Park Lamp Relay control circuit from relay
cavity 52 (86) to the Junction Block Body Control Module connector terminal #16.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
All
9
View repair options.
All
Repair
Replace the Body Control Module.
Perform the Body Verification Test - Ver 1
10
Check J/B fuse #7.
Is fuse #7 open?
All
Yes
→ Go To
No
→ Repair the open Fused B(+) circuit from the PDC.
Perform the Body Verification Test - Ver 1
11
261
EXTERIOR LIGHTING
*PARK LAMPS WILL NOT TURN ON —
Continued
TEST
ACTION
APPLICABILITY
11
Measure the resistance of the Fused B(+) circuit from cavity 53 (85) in the J/B
connector to ground.
Is the resistance below 5.0 ohms?
All
12
13
14
Yes
→ Replace the Junction Block
Perform the Body Verification Test - Ver 1
No
→ Go To
12
Remove the park lamp relay from the Junction Block.
Measure the resistance of the park lamp relay output circuit from relay cavity 55 (30)
to ground.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the fuse and recheck the system.
Perform the Body Verification Test - Ver 1
All
13
Remove the park lamp relay from the Junction Block.
Remove the Body Control Module from the Junction Block.
Measure the resistance of the park lamp relay output circuit from relay cavity 55 (30)
to ground.
Is the resistance below 5.0 ohms?
Yes
→ Repair the park lamp relay output circuit for a short to ground
and replace fuse.
Perform the Body Verification Test - Ver 1
No
→ Go To
All
14
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Body Control Module.
Perform the Body Verification Test - Ver 1
262
All
HEATING & A/C
Symptom List:
A/C CONTROL A/C SWITCH FAILURE (MANUAL A/C)
A/C CONTROL EBL SWITCH FAILURE (MAN A/C)
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be A/C CONTROL A/C SWITCH
FAILURE (MANUAL A/C).
When Monitored and Set Condition:
A/C CONTROL A/C SWITCH FAILURE (MANUAL A/C)
When Monitored:
With ignition on
Set Condition: When the BCM detects th A/C switch stuck in the depressed position for
more than 30 seconds.
A/C CONTROL EBL SWITCH FAILURE (MAN A/C)
When Monitored:
With ignition on.
Set Condition: When the BCM detects the EBL switch stuck in the depressed position for
more than 30 seconds.
POSSIBLE CAUSES
CONTROL HEAD SWITCHES OKAY
MODE SWITCH MUX CIRCUIT SHORT TO GROUND
MODE SWITCH MUX CIRCUIT SHORT TO SENSOR GROUND
CONTROL HEAD - BUTTON STICKS
CONTROL HEAD - EBL SHORT TO GROUND
CONTROL HEAD - MODE MUX INCORRECT
CONTROL HEAD - OPEN SWITCH
BODY CONTROL MODULE - MODE SWITCH MUX SHORT TO GROUND
TEST
1
ACTION
Put the control switch in the Recirc/Bi-Level (full left) position.
With the DRBIIIt, erase Body Computer DTC’s.
With the DRBIIIt, read the 9Mode Switch Mux9 voltage.
Is the voltage below 0.5 volts?
Yes
→ Go To
2
No
→ Go To
6
263
APPLICABILITY
AIR CONDITIONING
HEATING & A/C
A/C CONTROL A/C SWITCH FAILURE (MANUAL A/C) —
TEST
2
3
4
5
Continued
ACTION
Disconnect the Manual Temp Control Head 9C19 connector.
With the DRBIIIt, read the 9Mode Switch Mux9 voltage.
Does the DRBIIIt display 9Mode Switch Mux: 4.8 volts9 or greater?
Yes
→ Replace the Control Head.
Perform the Body Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
AIR CONDITIONING
3
AIR CONDITIONTurn the ignition off.
ING
Disconnect the Manual Temp Control Head 9C19 connector.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance between the Sensor Ground circuit and the Mode Switch Mux
circuit in the Manual Temp Control Head 9C19 connector.
Is the resistance below 100.0 ohms?
Yes
→ Rerpair the Mode Switch Mux circuit for a short to the Sensor
Ground circuit.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
Turn the ignition off.
Disconnect the Manual Temp Control Head 9C19 connector.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance between ground and the Mode Switch Mux circuit.
Is the resistance below 100.0 ohms?
Yes
→ Rerpair the Mode Switch Mux circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
AIR CONDITIONING
5
View repair options.
AIR CONDITIONING
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
6
7
Press and release the Rear Defogger and the A/C select buttons on the control head AIR CONDITIONseveral times.
ING
Does either of the buttons seem to stick at times?
Yes
→ Replace the Control Head.
Perform the Body Verification Test - Ver 1.
No
→ Go To
7
Put the control switch in the Recirc/Bi-Level (full left) position.
Ensure the A/C and the Rear Defogger switches are off.
Turn the ignition on.
With the DRBIIIt, read the 9Mode Switch Mux9 voltage.
Is the voltage approximately 4.2 to 4.5 volts?
Yes
→ Go To
No
→ Replace the Control Head.
Perform the Body Verification Test - Ver 1.
8
264
AIR CONDITIONING
HEATING & A/C
A/C CONTROL A/C SWITCH FAILURE (MANUAL A/C) —
TEST
8
Continued
ACTION
APPLICABILITY
AIR CONDITIONWith the DRBIIIt, read the 9Mode Switch Mux9 voltage.
ING
Press and hold the A/C button and observe the DRB voltage (should be approximately
0.45 volts).
Press and hold the Rear Defogger button and observe the DRB voltage (should be
approximately 0.25 volts).
Were the voltage readings correct when the switches were pressed?
Yes
→ According to your answers, there is no problem at this time with
the Control Head Switches. Retry the system and recheck for
DTC’s
No
→ Replace the Control Head.
Perform the Body Verification Test - Ver 1.
265
HEATING & A/C
Symptom:
A/C CONTROL BLEND DOOR INPUT OPEN OR SHORT TO
GROUND
When Monitored and Set Condition:
A/C CONTROL BLEND DOOR INPUT OPEN OR SHORT TO GROUND
When Monitored:
With ignition on.
Set Condition: When the BCM detects an abnormally low voltage (below 1.0 volts) on its
blend request input.
POSSIBLE CAUSES
FUSED IGNITION SWITCH OUTPUT CIRCUIT- OPEN
TEMPERATURE SELECT CKT SHORT TO GROUND
TEMPERATURE SELECT SIGNAL CKT OPEN
TEMPERATURE SELECT CKT SHORT TO SENSOR GROUND
CONTROL HEAD - TEMP SELECT OPEN/SHORT
BODY CONTROL MODULE - TEMP SELECT OPEN/SHORT
TEST
1
2
ACTION
With the DRBIIIt, erase Body Controller DTC’s.
Disconnect the Manual Temp Control Head 9C19 connector.
Turn the ignition on.
Measure the voltage between Fused Ignition Switch Output circuit and ground.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the open Fused Ignition Switch Output circuit.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
AIR CONDITIONING
2
Turn the ignition off.
Disconnect the Manual Temp Control Head 9C19 connector.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance between ground and the Temperature Select Signal circuit.
Is the resistance below 100.0 ohms?
Yes
→ Repair the Temperature Select circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
3
266
AIR CONDITIONING
HEATING & A/C
A/C CONTROL BLEND DOOR INPUT OPEN OR SHORT TO GROUND —
Continued
TEST
3
4
5
6
ACTION
APPLICABILITY
AIR CONDITIONTurn the ignition off.
ING
Disconnect the Manual Temp Control Head 9C19 connector.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance of the Temperature Select Signal circuit between the BCM
9C29 connector and the Manual Temp Control Head 9C19 connector..
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Temperature Select Signal circuit.
Perform the Body Verification Test - Ver 1.
4
AIR CONDITIONTurn the ignition off.
ING
Disconnect the Manual Temp Control Head 9C19 connector.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance between Sensor Ground circuit and the Temperature Select
Signal circuit.
Is the resistance below 100.0 ohms?
Yes
→ Repair the Temperature Select circuit for a short to the Sensor
Ground circuit.
Perform the Body Verification Test - Ver 1.
No
→ Go To
5
AIR CONDITIONEnsure the Manual Temp Control Head 9C19 connector is connected at this time.
ING
Disconnect the Body Control Module 9C29 connector.
Turn the ignition on.
Measure the voltage of the Temperature Select Signal circuit in the BCM 9C29
connector..
Move the temperature Control from cold to hot and observe the voltmeter.
Does the voltage change smoothly from approximately 1.0 volts (full cold) to 10.0
volts (full hot)?
Yes
→ Go To
No
→ Replace the Control Head.
Perform the Body Verification Test - Ver 1.
6
View repair options.
AIR CONDITIONING
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
267
HEATING & A/C
Symptom:
A/C CONTROL BLEND DOOR INPUT SHORT TO BATTERY
When Monitored and Set Condition:
A/C CONTROL BLEND DOOR INPUT SHORT TO BATTERY
When Monitored:
Set Condition:
input.
With ignition on.
When the BCM detects an abnormally high voltage on its blend request
POSSIBLE CAUSES
TEMPERATURE SELECT CKT SHORT TO VOLTAGE
CONTROL HEAD - SHORT TO VOLTAGE
BODY CONTROL MODULE - TEMPERATURE SELECT SHORT TO VOLTAGE
TEST
1
2
3
ACTION
With the DRBIIIt, erase Body Controller DTC’s.
Turn the ignition off.
Disconnect the Manual Temp Control Head 9C19 connector.
Turn the ignition on.
Measure the voltage between Temperature Select Signal circuit and ground.
Is the voltage above 0.3 volts?
Yes
→ Go To
No
→ Replace the Control Head.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
AIR CONDITIONING
2
Turn the ignition off.
Disconnect the Manual Temp Control Head 9C19 connector.
Disconnect the Body Control Module 9C29 connector.
Turn the ignition on.
Measure the voltage between ground and the Temperature Select Signal circuit.
Is there any voltage present?
Yes
→ Repair the Temperature Select circuit for a short to voltage.
Perform the Body Verification Test - Ver 1.
No
→ Go To
AIR CONDITIONING
3
View repair options.
AIR CONDITIONING
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
268
HEATING & A/C
Symptom:
A/C CONTROL MODE DOOR INPUT OPEN OR SHORTED TO BATTERY
When Monitored and Set Condition:
A/C CONTROL MODE DOOR INPUT OPEN OR SHORTED TO BATTERY
When Monitored:
Set Condition:
input.
With ignition on.
When the BCM detects an abnormally high voltage on its mode request
POSSIBLE CAUSES
MODE SWITCH MUX CIRCUIT OPEN
MODE SWITCH MUX CIRCUIT SHORT TO BATTERY
CONTROL HEAD - MODE MUX OPEN
BODY CONTROL MODULE - MODE SWITCH MUX OPEN
TEST
1
2
ACTION
APPLICABILITY
AIR CONDITIONWith the DRBIIIt, erase Body Controller DTC’s.
ING
Turn the ignition off.
Disconnect the Manual Temp Control Head 9C19 connector.
Disconnect the Body Control Module 9C29 connector.
Turn the ignition on.
Measure the voltage between ground and the Mode Switch Mux circuit in the Manual
Temp Control Head 9C19 connector..
Is there any voltage present?
Yes
→ Rerpair the Mode Switch Mux circuit for a short to battery.
Perform the Body Verification Test - Ver 1.
No
→ Go To
2
AIR CONDITIONTurn the ignition off.
ING
Disconnect the Manual Temp Control Head 9C19 connector.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance of the Mode Switch Mux circuit between the Manual Temp
Control Head 9C19 connector and the BCM 9C29 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Rerpair the open Mode Switch Mux circuit.
Perform the Body Verification Test - Ver 1.
3
269
HEATING & A/C
A/C CONTROL MODE DOOR INPUT OPEN OR SHORTED TO BATTERY
— Continued
TEST
3
4
ACTION
Turn the ignition off.
Disconnect the Manual Temp Control Head 9C19 connector.
Ensure the BCM is fully connected at this time.
Turn the ignition on.
Measure the voltage between the Mode Switch Mux circuit and ground.
Is the voltage above 4.9 volts?
Yes
→ Replace the Control Head.
Perform the Body Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
AIR CONDITIONING
4
View repair options.
AIR CONDITIONING
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
270
HEATING & A/C
Symptom:
A/C CONTROL MODE DOOR INPUT SHORTED TO GROUND
When Monitored and Set Condition:
A/C CONTROL MODE DOOR INPUT SHORTED TO GROUND
When Monitored:
Set Condition:
input.
With ignition on.
When the BCM detects an abnormally low voltage on its mode request
POSSIBLE CAUSES
MODE SWITCH MUX CIRCUIT SHORT TO GROUND
CONTROL HEAD - SHORT TO GROUND
BODY CONTROL MODULE - MODE SWITCH MUX SHORT TO GROUND
TEST
1
2
3
ACTION
With the DRBIIIt, erase Body Controller DTC’s.
Turn the ignition off.
Disconnect the Manual Temp Control Head 9C19 connector.
Measure the resistance between the Mode Switch Mux circuit and ground.
Is the resistance below 100.0 ohms?
Yes
→ Go To
No
→ Replace the Control Head.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
AIR CONDITIONING
2
AIR CONDITIONTurn the ignition off.
ING
Disconnect the Manual Temp Control Head 9C19 connector.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance between ground and the Mode Switch Mux circuit in the
Manual Temp Control Head 9C19 connector..
Is the resistance below 100.0 ohms?
Yes
→ Rerpair the Mode Switch Mux circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
3
View repair options.
AIR CONDITIONING
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
271
HEATING & A/C
Symptom:
ATC SWITCH FAILED
When Monitored and Set Condition:
ATC SWITCH FAILED
When Monitored:
Ignition on.
Set Condition: The BCM interfaces with the ATC head over the PCI bus. If an ATC switch
is held in the closed position longer than 5-10 minutes, a switch failed code will be set.
POSSIBLE CAUSES
ATC HEAD - ERASE DTC- RESET
ATC HEAD SWITCHES STUCK
TEST
1
ACTION
APPLICABILITY
AIR CONDITIONTurn the ignition on.
ING W/AUTO
Using the DRB select: 9Automatic Temp Control9, 9Input/output9 and observe the
TEMP CONTROL
switch states.
Do any of the switch states read 9Closed9?
Yes
→ Replace the Automatic Temperature Control Head.
Perform the Body Verification Test - Ver 1.
No
→ Using the DRB, erase the trouble code and 9Reset Module9 (under
miscellaneous).
Perform the Body Verification Test - Ver 1.
272
HEATING & A/C
Symptom List:
BLEND DOOR FEEDBACK FAILURE
BLEND DOOR STALL TEST FAILURE
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be BLEND DOOR FEEDBACK
FAILURE.
When Monitored and Set Condition:
BLEND DOOR FEEDBACK FAILURE
When Monitored: At the first ignition on after a battery disconnect or upon request of the
HVAC control or the DRBIII.
Set Condition: This code will set if the BCM does not receive proper feedback signal when
drive voltage is being applied to the mode door actuator.
BLEND DOOR STALL TEST FAILURE
When Monitored:
Set Condition:
During HVAC motor calibration
The BCM is unable to detect the end of travel for Blend Door.
POSSIBLE CAUSES
BLEND DOOR FEEDBACK SIGNAL CIRCUIT SHORT TO BATTERY
BODY CONTROL MODULE
MODE DOOR ACTUATOR
SENSOR GROUND WIRE OPEN
BLEND DOOR FEEDBACK SIGNAL CIRCUIT OPEN
COMMON DOOR DRIVER WIRE OPEN
BLEND AIR DOOR DRIVER WIRE OPEN
BLEND DOOR FEDBACK SIGNAL CIRCUIT SHORT TO GROUND.
5 VOLT SUPPLY CIRCUIT OPEN
5 VOLT SUPPLY CIRCUIT SHORT TO GROUND.
5 VOLT SUPPLY CIRCUIT SHORT TO VOLTAGE
5 VOLT SUPPLY CIRCUIT SHORT TO SENSOR GROUND
BLEND DOOR ACTUATOR SHORTED TO SENSOR GROUND
BLEND AIR DOOR ACTUATOR
BLEND AIR DOOR ACTUATOR
BODY CONTROL MODULE-BLEND DOOR DRIVER
BODY CONTROL MODULE-COMMON DOOR DRIVER
BODY CONTROL MODULE
273
HEATING & A/C
BLEND DOOR FEEDBACK FAILURE —
Continued
TEST
ACTION
APPLICABILITY
1
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Turn the ignition on.
Measure the voltage of the 5 volt supply circuit (cavity 6) in the inline connector (I/P
harness side)
What voltage is present?
All
2
3
4
Zero volts.
Go To
2
4.5 to 5.5 Volts
Go To
6
Over 5.5 Volts
Go To
18
Turn the ignition off.
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance of the 5 volt supply circuit to ground.
Is the resistance below 100.0 ohms?
Yes
→ Repair the 5 volt supply circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
3
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance of the 5 volt supply wire between the BCM connector and the
inline (C202/3) connector (I/P harness side).
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open 5 Volt Supply circuit.
Perform the Body Verification Test - Ver 1.
All
4
Turn the ignition off.
Ensure the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in the
center of the instrument panel above the accelerator pedal is connected.
Disconnect the Body Control Module 9C19 connector
Disconnect the Body Control Module 9C29 connector.
Measure the resistance between the 5 volt supply circuit in the BCM 9C29 connector
and the sensor ground circuit in the BCM 9C19 connector.
Is the resistance below 2000.0 ohms?
Yes
→ Go To
No
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
5
274
All
HEATING & A/C
BLEND DOOR FEEDBACK FAILURE —
Continued
TEST
ACTION
APPLICABILITY
5
Turn the ignition off.
Ensure the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in the
center of the instrument panel above the accelerator pedal is connected.
Disconnect the Body Control Module 9C19 connector
Disconnect the Body Control Module 9C29 connector.
Disconnect the Blend Door Actuator connector.
Measure the resistance between the 5 volt supply circuit in the BCM 9C29 connector
and the sensor ground circuit in the BCM 9C19 connector.
Is the resistance below 2000.0 ohms?
All
6
Yes
→ Ensure the wiring from the inline connector to the actuator is
okay. If the wiring is okay, replace the Mode Door Actuator.
Perform the Body Verification Test - Ver 1.
No
→ Ensure the harness from the inline connector to the actuator is
okay. If the wiring is okay, replace the Blend Air Door Actuator.
Perform the Body Verification Test - Ver 1.
Ensure the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in the
center of the instrument panel above the accelerator pedal is connected.
Turn the ignition on.
With the DRBIIIt, read the 9Temp Air Door9 voltage.
What voltage is present?
All
Above 5.6 volts.
Repair the blend door feedback signal circuit for a short to battery.
Perform the Body Verification Test - Ver 1.
From 0.3 to 5.5 volts.
Go To 7
Less than 0.3 volts
Go To 15
7
8
Turn the ignition off.
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Turn off all lights and close the driver door latch so the courtesy lamps will go off.
Measure the resistance of the sensor ground circuit (cavity #5) in the inline connector
(I/P harness side).
Is the resistance below 5.0 ohms?
Yes
→ Go To
8
No
→ Go To
13
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module 9C19 connector
Measure the resistance of the Common Door Driver circuit between the BCM 9C19
connector and the HVAC in line connector (cavity 1).
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Common Door Driver Wire.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
9
275
All
All
HEATING & A/C
BLEND DOOR FEEDBACK FAILURE —
Continued
TEST
ACTION
APPLICABILITY
9
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module 9C19 connector
Measure the resistance of the Blend Air Door Driver circuit between the BCM 9C19
connector and the HVAC in line connector (cavity 3).
Is the resistance below 5.0 ohms?
All
10
11
12
Yes
→ Go To
No
→ Repair the open Blend Air Door Driver wire.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
10
Turn the ignition off.
Ensure the 9C202/3 inline9 connector is connected at this time.
With the DRBIIIt, erase DTC’s.
Disconnect the BCM 9C19connector.
Backprobe one voltmeter lead to the Blend Air Door Driver ckt in the BCM 9C19
connector and the other to chassis ground.
Reconnect the BCM 9C19 connector.
Turn the ignition on.
Move the temperature control from cold (LO) to hot (HI) and observe voltmeter.
Did the voltage ever go above 10.0 volts?
Yes
→ Go To
No
→ Replace the Body Control Module (blend air door driver open).
Perform the Body Verification Test - Ver 1.
All
11
Turn the ignition off.
Ensure the 9C202/3 inline9 connector is connected at this time.
With the DRBIIIt, erase DTC’s.
Disconnect the BCM 9C19connector.
Backprobe one voltmeter lead to the Common Door Driver ckt in the BCM 9C19
connector and the other to chassis ground.
Reconnect the BCM 9C19 connector.
Turn the ignition on.
Push (move) the mode control as follows: Recirc switch Off: Panel Switch On: then
Recirc Switch ON while observing the voltmeter.
Did the voltage ever go above 10.0 volts?
Yes
→ Go To
No
→ Replace the Body Control Module (common door driver open).
Perform the Body Verification Test - Ver 1.
All
12
View repair options.
All
Repair
If the wiring to the actuator is okay and the blend air door is not
binding, replace the Blend Air Door Actuator..
Perform the Body Verification Test - Ver 1.
276
HEATING & A/C
BLEND DOOR FEEDBACK FAILURE —
Continued
TEST
ACTION
APPLICABILITY
13
Turn the ignition off.
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module 9C19 connector
Measure the resistance of the sensor ground wire from the inline connector (cavity
#5) (I/P harness side) to the BCM 9C19 connector.
Is the resistance below 5.0 ohms?
All
14
Yes
→ Go To
No
→ Repair the open sensor ground wire.
Perform the Body Verification Test - Ver 1.
14
View repair options.
All
Repair
Check the Junction Block BCM connection. If okay, replace the
Body Control Module (sensor ground open).
Perform the Body Verification Test - Ver 1.
15
16
17
Turn the ignition off.
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance of the Blend Door Feedback Signal circuit to ground.
Is the resistance below 1000.0 ohms?
Yes
→ Repair the blend door feedback signal circuit for a short to
ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
16
Turn the ignition off.
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance of the Blend Door Feedback Signal circuit between the BCM
9C29 connector and the Inline connector (cavity 10).
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open blend door feedback signal wire.
Perform the Body Verification Test - Ver 1.
All
17
View repair options.
All
Repair
Ensure the wiring to the actuator is okay. If the wiring is okay,
replace the Blend Air Door Actuator.
Perform the Body Verification Test - Ver 1.
277
HEATING & A/C
BLEND DOOR FEEDBACK FAILURE —
Continued
TEST
ACTION
APPLICABILITY
18
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module 9C19 connector
Disconnect the Body Control Module 9C29 connector.
Turn the ignition on.
Measure the voltage between 5 volt supply circuit and ground.
Is there any voltage present?
All
Yes
→ Repair the 5 volt supply wire for a short to voltage.
Perform the Body Verification Test - Ver 1.
No
→ If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
278
HEATING & A/C
Symptom List:
BLEND DOOR OUTPUT SHORTED TO BATTERY
COMMON OUTPUT SHORTED TO BATTERY
MODE DOOR OUTPUT SHORTED TO BATTERY
RECIRC DOOR OUTPUT SHORTED TO BATTERY
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be BLEND DOOR OUTPUT
SHORTED TO BATTERY.
When Monitored and Set Condition:
BLEND DOOR OUTPUT SHORTED TO BATTERY
When Monitored:
Whenever the BCM attempts to move one of the HVAC doors.
Set Condition: When the BCM detects one or more of the following outputs shorted to
battery: mode drive, blend drive, recirc drive or common drive (NOTE: all shorted to
battery codes will be set when one output is shorted).
COMMON OUTPUT SHORTED TO BATTERY
When Monitored:
Whenever the BCM attempts to move one of the HVAC actuators.
Set Condition: When the BCM detects one or more of the following outputs shorted to
battery: mode drive, blend drive, recirc drive or common drive (NOTE: all shorted to
battery codes will be set when one output is shorted).
MODE DOOR OUTPUT SHORTED TO BATTERY
When Monitored:
Whenever the BCM attempts to move one of the HVAC actuators
Set Condition: When the BCM detects one or more of the following outputs shorted to
battery: mode drive, blend drive, recirc drive or common drive (NOTE: all shorted to
battery codes will be set when one output is shorted).
RECIRC DOOR OUTPUT SHORTED TO BATTERY
When Monitored:
Whenever the BCM attempts to move one of the HVAC actuators.
Set Condition: When the BCM detects one or more of the following outputs shorted to
battery: mode drive, blend drive, recirc drive or common drive (NOTE: all shorted to
battery codes will be set when one output is shorted).
POSSIBLE CAUSES
DRIVER CIRCUITS SHORTED TOGETHER
RECIRCULATION DOOR ACTUATOR - SHORTED
RECIRCULATION DOOR DRIVER CIRCUIT SHORT TO BATTERY
BLEND DOOR DRIVER CIRCUIT SHORT TO BATTERY
279
HEATING & A/C
BLEND DOOR OUTPUT SHORTED TO BATTERY —
Continued
POSSIBLE CAUSES
COMMON DOOR DRIVER CIRCUIT SHORT TO BATTERY
MODE DOOR DRIVER CIRCUIT SHORT TO BATTERY
MODE DOOR ACTUATOR - SHORTED
BLEND DOOR ACTUATOR - SHORTED
BODY CONTROL MODULE - DRIVER SHORTED INTERNAL
TEST
1
2
3
4
ACTION
Disconnect the Body Control Module 9C19 connector
Measure the voltage between Blend Door Driver circuit and ground.
Is the voltage above 10.0 volts?
Yes
→ Repair the Blend Door Driver circuit for a short to battery.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
All
2
Disconnect the Body Control Module 9C19 connector
Measure the voltage between Recirculation Door Driver circuit and ground.
Is the voltage above 10.0 volts?
Yes
→ Repair the Recirculation Door Driver circuit for a short to battery.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
3
Disconnect the Body Control Module 9C19 connector
Measure the voltage between Mode Door Driver circuit and ground.
Is the voltage above 10.0 volts?
Yes
→ Repair the Mode Door Driver circuit for a short to battery.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
4
Disconnect the Body Control Module 9C19 connector
Measure the voltage between Common Door Driver circuit and ground.
Is the voltage above 10.0 volts?
Yes
→ Repair the Common Door Driver circuit for a short to battery.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
No
→ Go To
5
280
All
HEATING & A/C
BLEND DOOR OUTPUT SHORTED TO BATTERY —
Continued
TEST
ACTION
APPLICABILITY
5
Turn the ignition off.
Measure the resistance between the Common Door Driver (cavity 10), the Mode Door
Driver (cav 9), the Recirc Door Driver (cav 2) and the Blend Door Driver (cav 3) in the
BCM 9C19 connector.
Measure the resistance between the Mode Door Driver (cavity 9), the Recirc Door
Driver (cav 2) and the Blend Door Driver (cav 3) in the BCM 9C19 connector.
Measure the resistance between the Blend Door Driver (cavity 3) and the Recirc Door
Driver (cav 2) in the BCM 9C19 connector.
Is the resistance below 5.0 ohms between any of the door driver circuits?
All
6
7
8
9
Yes
→ Go To
No
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
6
Disconnect the Body Control Module 9C19 connector
Disconnect the Blend Door Actuator connector.
Measure the resistance between the Blend Door Driver circuit (cavity 3) and the
other driver circuits (cavities 2, 9 and 10) in the BCM 9C19 connector.
Is the resistance below 5.0 ohms between any of the driver circuits?
Yes
→ Go To
No
→ Replace the Blend Door Actuator.
Perform the Body Verification Test - Ver 1.
All
7
Disconnect the Body Control Module 9C19 connector
Disconnect the Mode Door Actuator connector.
Measure the resistance between the Mode Door Driver circuit (cavity 9) and the other
driver circuits (cavitied 2, 3 and 10) in the BCM 9C19 connector.
Is the resistance below 5.0 ohms between any of the driver circuits?
Yes
→ Go To
No
→ Replace the Mode Door Actuator.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
All
8
Disconnect the Body Control Module 9C19 connector
Disconnect the Recirculation Door Actuator connector.
Measure the resistance between the Recirculation Door Driver circuit (cavity 2) and
the other driver circuits (cavitied 3, 9 and 10) in the BCM 9C19 connector.
Is the resistance below 5.0 ohms between any of the driver circuits?
Yes
→ Go To
No
→ Replace the Recirculation Door Actuator.
Perform the Body Verification Test - Ver 1.
All
9
View repair options.
All
Repair
Repair the Door Driver circuits that are shorted together.
Perform the Body Verification Test - Ver 1.
281
HEATING & A/C
Symptom:
BLEND DOOR OUTPUT SHORTED TO GROUND
When Monitored and Set Condition:
BLEND DOOR OUTPUT SHORTED TO GROUND
When Monitored:
Whenever the BCM attempts to move one of the HVAC actuators.
Set Condition: When the BCM detects one or more of the following outputs shorted to
ground: mode driver, blend driver, recirc driver or common driver.
POSSIBLE CAUSES
BLEND DOOR ACTUATOR SHORT TO SENSOR GROUND
BLEND DOOR DRIVER CIRCUIT SHORT TO GROUND
BLEND DOOR DRIVER CKT SHORT TO SENSOR GROUND
BLEND DOOR DRIVER WIRE SHORT TO SENSOR GROUND
TEST
1
2
ACTION
Turn all lights off. Close the driver door latch to turn courtesy lamps off.
Disconnect the Body Control Module 9C19 connector
Measure the resistance between ground and the Blend Door Driver circuit.
Is the resistance below 5.0 ohms?
Yes
→ Repair the Blend Door Driver circuit for a short to ground.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
All
2
Disconnect the Body Control Module 9C19 connector
Measure the resistance between the Blend Door Driver circuit and the Sensor
Ground circuit in the BCM 9C19 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Body Control Module.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
3
282
All
HEATING & A/C
BLEND DOOR OUTPUT SHORTED TO GROUND —
Continued
TEST
ACTION
APPLICABILITY
3
Disconnect the Body Control Module 9C19 connector
Disconnect the Blend Door Actuator connector.
Measure the resistance between the Blend Door Driver circuit and the Sensor
Ground circuit in the BCM 9C19 connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Repair the Blend Door Driver wire for a short to the Sensor
Ground circuit.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
No
→ Replace the Blend Door Actuator.
Perform the Body Verification Test - Ver 1.
283
HEATING & A/C
Symptom:
COMMON OUTPUT SHORTED TO GROUND
POSSIBLE CAUSES
COMMON DOOR DRIVER CIRCUIT SHORT TO GROUND
COMMON DOOR DRIVER CKT SHORT TO SENSOR GROUND
COMMON DOOR DRIVER WIRE SHORT TO SENSOR GROUND
MODE DOOR ACTUATOR SHORT TO COMMON DRIVER
BLEND DOOR ACTUATOR SHORT TO COMMON DRIVER
TEST
1
2
3
ACTION
Turn all lights off. Close the driver door latch to turn courtesy lamps off.
Disconnect the Body Control Module 9C19 connector
Measure the resistance between ground and the Common Door Driver circuit.
Is the resistance below 5.0 ohms?
Yes
→ Repair the Common Door Driver circuit for a short to ground.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
All
2
Disconnect the Body Control Module 9C19 connector
Measure the resistance between the Common Door Driver circuit and the Sensor
Ground circuit in the BCM 9C19 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Body Control Module.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
All
3
Disconnect the Body Control Module 9C19 connector
Disconnect the Mode Door Actuator connector.
Measure the resistance between the Common Door Driver circuit and the Sensor
Ground circuit in the BCM 9C19 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Mode Door Actuator.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
4
284
All
HEATING & A/C
COMMON OUTPUT SHORTED TO GROUND —
Continued
TEST
ACTION
APPLICABILITY
4
Disconnect the Body Control Module 9C19 connector
Disconnect the Blend Door Actuator connector.
Measure the resistance between the Common Door Driver circuit and the Sensor
Ground circuit in the BCM 9C19 connector.
Is the resistance below 5.0 ohms?
All
5
Yes
→ Go To
No
→ Replace the Blend Door Actuator.
Perform the Body Verification Test - Ver 1.
5
View repair options.
All
Repair
Repair the Common Door Driver wire for a short to the Sensor
Ground circuit.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
285
HEATING & A/C
Symptom:
EVAPORATOR TEMPERATURE SENSOR FAILURE
When Monitored and Set Condition:
EVAPORATOR TEMPERATURE SENSOR FAILURE
When Monitored:
With ignition on.
Set Condition: When the BCM detects an abnormally high or low voltage on the
evaporator temperature sensor.
POSSIBLE CAUSES
SYSTEM IS OPERATIONAL
SENSOR GROUND OPEN
EVAPORATOR TEMP SENSOR SIGNAL CKT OPEN
EVAPORATOR TEMP SENSOR SIGNAL CKT SHORT TO SENSOR GROUND
EVAPORATOR TEMP SENSOR SIGNAL WIRE SHORT TO GROUND
EVAPORATOR TEMPERATURE SENSOR SIGNAL CKT SHORT TO VOLTAGE
EVAPORATOR TEMPERATURE SENSOR OPEN
EVAPORATOR TEMPERATURE SENSOR - CODE RETURNS
BODY CONTROL MODULE - EVAPORATOR TEMP SENSOR STAYS HIGH
BODY CONTROL MODULE - EVAPORATOR TEMP SENSOR STAYS LOW
EVAPORATOR TEMPERATURE SENSOR - CODE WITH A/C OPERATING
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIIIt in 9Sensors9, read the Evaporator Temperature Sensor voltage..
Does the DRBIIIt display 9EVAP TEMP: 5.2 VOLTS9 or greater?
All
2
Yes
→ Go To
2
No
→ Go To
7
Disconnect the Evaporator Temperature Sensor Signal connector.
Turn the ignition on.
Connect a jumper wire between the Evaporator Temperature Sensor Signal circuit
and Sensor Ground.
With the DRBIIIt in 9Sensors9, read the Evaporator Temperature Sensor voltage..
Does the DRBIIIt display 9EVAP TEMP: 4.9 VOLTS9 or greater?
Yes
→ Go To
No
→ Replace the Evaporator Temperature Sensor.
Perform the Body Verification Test - Ver 1.
3
286
All
HEATING & A/C
EVAPORATOR TEMPERATURE SENSOR FAILURE —
Continued
TEST
ACTION
APPLICABILITY
3
Disconnect the Evaporator Temperature Sensor Signal connector.
Turn the ignition on.
Measure the voltage between the Evaporator Temperature Sensor Signal circuit and
ground.
Is the voltage above 5.3 volts?
All
4
5
6
Yes
→ Repair the Evaporator Temperature Sensor Signal ckt for a short
to voltage.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
Turn the ignition off.
Disconnect the Evaporator Temperature Sensor Signal connector.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance of the Evaporator Temp Sensor Signal circuit between the
BCM 9C29 connector and the Evaporator Temperature Sensor connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Evaporator Temp Sensor Signal wire.
Perform the Body Verification Test - Ver 1.
All
5
Disconnect the Evaporator Temperature Sensor Signal connector.
Connect a jumper wire between the Evaporator Temperature Sensor Signal circuit
and Ground.
With the DRBIIIt in 9Sensors9, read the Evaporator Temperature Sensor voltage..
Does the DRBIIIt display 9EVAP TEMP: 4.9 VOLTS9 or greater?
Yes
→ Go To
No
→ Repair the open Sensor Ground.
Perform the Body Verification Test - Ver 1.
All
6
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
7
8
Disconnect the Evaporator Temperature Sensor Signal connector.
Turn the ignition on.
With the DRBIIIt in 9Sensors9, read the Evaporator Temperature Sensor voltage..
Does the DRBIIIt display 9EVAP TEMP: 4.9 VOLTS9 or greater?
Yes
→ Go To
8
No
→ Go To
10
Ensure the Evaporator Temp Sensor is connected at this time.
Turn the ignition off.
With the DRBIIIt, read Body Computer DTC’s.
Turn the ignition on.
Wait 2 minutes.
With the DRBIIIt, read Body Computer DTC’s.
Does the DRBIIIt display 9Evaporator Temp Sensor Failure9 DTC?
Yes
→ Replace the Evaporator Temperature Sensor.
Perform the Body Verification Test - Ver 1.
No
→ Go To
9
287
All
All
HEATING & A/C
EVAPORATOR TEMPERATURE SENSOR FAILURE —
Continued
TEST
ACTION
APPLICABILITY
9
Ensure the Evaporator Temp Sensor is connected at this time.
Start the engine.
Turn the A/C system on and run for at least 5 minutes (so water will form on the
evaporator temperature sensor).
With the DRBIIIt, read Body Computer DTC’s.
Does the DRBIIIt display 9Evaporator Temp Sensor Failure9 DTC?
All
10
11
12
Yes
→ Replace the Evaporator Temperature Sensor.
Perform the Body Verification Test - Ver 1.
No
→ As indicated from your answers, there is no problem found at this
time. The evaporator temperature sensor should be fully operational.
Turn the ignition off.
Disconnect the Evaporator Temperature Sensor Signal connector.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance of the Evaporator Temp Sensor Signal circuit between the
BCM 9C29 connector and ground.
Is the resistance below 1000.0 ohms?
Yes
→ Repair the Evaporator Temp Sensor Signal wire for a short to
ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
11
Turn the ignition off.
Disconnect the Evaporator Temperature Sensor Signal connector.
Disconnect the BCM 9C19 connector.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance between the Evaporator Temp Sensor Signal circuit and the
Sensor Ground circuit in the Evaporator Temperature Sensor connector.
Is the resistance below 1000.0 ohms?
Yes
→ Repair the Evaporator Temp Sensor Signal wire for a short to
Sensor Ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
12
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
288
HEATING & A/C
Symptom:
IN-CAR TEMPERATURE SENSOR FAILUE
When Monitored and Set Condition:
IN-CAR TEMPERATURE SENSOR FAILUE
When Monitored:
With ignition on.
Set Condition: When the BCM senses an abnormally high voltage (above 4.8 volts) or an
abnormally low voltage (below 0.313 volts) in the in-car temperature input.
POSSIBLE CAUSES
BCM-ASPIRATOR STAYS RUNNING
IN-CAR TEMP SENSOR SIGNAL SHORT TO VOLTAGE
SYSTEM IS OPERATIONAL AT THIS TIME
FUSED B(+) CIRCUIT OPEN
SENSOR GROUND WIRE OPEN
ASPIRATOR MOTOR DRIVER CIRCUIT OPEN
ASPIRATOR MOTOR DRIVER CIRCUIT SHORT TO BATTERY
ASPIRATOR MOTOR DRIVER CIRCUIT SHORT TO GROUND
IN-CAR TEMPERATURE SENSOR SIGNAL CIRCUIT OPEN
IN-CAR TEMPERATURE SENSOR SIGNAL CIRCUIT SHORT TO GROUND
ATC HEAD - OPEN ASPIRATOR MOTOR
ATC HEAD - IN-CAR SENSOR CODE
IN-CAR TEMPERATURE SENSOR SIGNAL CIRCUIT SHORT TO SENSOR GROUND
BODY CONTROL MODULE - ASPIRATOR DRIVER OPEN
BODY CONTROL MODULE - OPEN IN-CAR TEMP SENSOR SIGNAL
BODY CONTROL MODULE - OPEN SENSOR GROUND
289
HEATING & A/C
IN-CAR TEMPERATURE SENSOR FAILUE —
Continued
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
Completely cover the aspirator inlet (below blower switch) with a piece of tissue
paper.
Note: The tissue paper should hold in place because of the air drawn in from
the aspirator.
Turn the ignition off.
Stay in the vehicle, close all doors and ensure courtesy lamps are off.
Wait three (3) minutes. Open and close the driver door and observe aspirator motor.
The motor should run for approximately 30 seconds after the courtesy lamps have
faded out and then stop.
Disconnect the ATC Head connector.
Turn the ignition on.
Measure the voltage between the In-Car Temperature Sensor Signal circuit and
ground. The voltage should be between 4.5 volts and 5.2 volts.
Select the appropriate findings.
All
Aspirator never ran.
Go To 2
Aspirator timer inop when door opened.
Go To 7
In-Car Temp Sense above 5.3 volts.
Repair the In-Car Temperature Sensor Signal circuit for a short to
voltage. If the circuit is okay, replace the BCM.
Perform the Body Verification Test - Ver 1.
In-Car Temp Sense below 4.5 volts.
Go To 8
None of the above.
Go To 12
2
3
Disconnect the ATC Head connector.
Turn the ignition on.
Measure the voltage between Fused B(+) circuit and ground.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the open Fused B(+) circuit.
Perform the Body Verification Test - Ver 1.
All
3
Turn the ignition off.
Disconnect the ATC Head connector.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance of the Aspirator Motor Driver circuit between the BCM 9C29
connector and the ATC Head connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Aspirator Motor Driver circuit.
Perform the Body Verification Test - Ver 1.
4
290
All
HEATING & A/C
IN-CAR TEMPERATURE SENSOR FAILUE —
TEST
4
5
6
ACTION
Disconnect the ATC Head connector.
Turn the ignition on.
Measure the voltage between Aspirator Motor Driver circuit and ground.
Is the voltage above 10.0 volts?
Yes
→ Repair the Aspirator Motor Driver circuit for a short to battery. If
the circuit is okay, replace the BCM.
Perform the Body Verification Test - Ver 1.
No
→ Go To
8
APPLICABILITY
All
5
Ensure the ATC Head is connected at this time.
Disconnect the Body Control Module 9C29 connector.
Connect a jumper wire between the Aspirator Motor Driver circuit and ground.
Check the operation of the aspirator motor fan.
Is the aspirator motor running?
Yes
→ Go To
No
→ Replace the Automatic Temperature Control Head.
Perform the Body Verification Test - Ver 1.
All
6
View repair options.
Yes
7
Continued
All
→ If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
Note: Ensure the courtesy lamps operate properly from the drivers door
before proceeding. If not, refer to the Interior Lighting category for the
related symptom(s).
Note: This path is for the aspirator continuing to run with the key off and
the doors closed.
Disconnect the Body Control Module 9C19 connector.
Did the aspirator motor stop running?
Yes
→ Replace the Body Control Module (aspirator motor driver grounded).
Perform the Body Verification Test - Ver 1.
No
→ Repair the Aspirator Motor Driver circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
Turn the ignition off.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance between ground and the In-Car Temperature Sensor Signal
circuit.
Is the resistance below 5.0 ohms?
Yes
→ Repair the In-Car Temperature Sensor Signal circuit for a short
to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
9
291
All
All
HEATING & A/C
IN-CAR TEMPERATURE SENSOR FAILUE —
Continued
TEST
ACTION
APPLICABILITY
9
Turn the ignition off.
Disconnect the Body Control Module 9C29 connector.
Disconnect the ATC Head connector.
With the DRBIIIt, erase DTC’s.
Backprobe one voltmeter lead to the In-Car Temperature Sensor Signal ckt in the
BCM 9C29 connector and the other lead to ground.
Reconnect the BCM 9C29 connnector.
Turn the ignition on and observe the voltmeter.
Did the voltage go above 4.5 volts?
All
10
11
Yes
→ Repair the open In-Car Temperature Sensor Signal circuit.
Perform the Body Verification Test - Ver 1.
No
→ Go To
Turn the ignition off.
Disconnect the Body Control Module 9C29 connector.
Disconnect the ATC Head connector.
Measure the resistance between the Sensor Ground circuit and the In-Car Temperature Sensor Signal circuit in the ATC Head connector.
Is the resistance below 5.0 ohms?
Yes
→ Repair the In-Car Temperature Sensor Signal circuit for a short
to the Sensor Ground circuit.
Perform the Body Verification Test - Ver 1.
No
→ Go To
13
All
11
View repair options.
Yes
12
10
All
→ If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
Turn the ignition off.
Disconnect the ATC Head connector.
Close the driver door latch and ensure all lights are off.
Wait one minute to allow BCM to go to sleep.
Measure the resistance between ground and the Sensor Ground circuit.
Is the resistance below 10.0 ohms?
Yes
→ Go To
13
No
→ Go To
14
Ensure the ATC Head is connected at this time.
With the DRBIIIt, erase Body Computer DTC’s.
Turn the ignition on.
With the DRBIIIt, read Body Computer DTC’s.
Does the DRBIIIt display 9In-Car Temp Sensor Failure9 DTC?
Yes
→ Replace the Automatic Temperature Control Head.
Perform the Body Verification Test - Ver 1.
No
→ As indicated from your answers, there is no problem found at this
time. The aspirator and in-car sensor should be fully operational.
292
All
All
HEATING & A/C
IN-CAR TEMPERATURE SENSOR FAILUE —
Continued
TEST
ACTION
APPLICABILITY
14
Turn the ignition off.
Disconnect the Body Control Module 9C19 connector.
Backprobe one ohmmeter lead to the Sensor Ground ckt in the BCM 9C19 connector
and the other lead to ground.
Reconnect the BCM 9C19 connector.
Close the driver door latch and ensure all lights are off.
Wait one minute to allow BCM to go to sleep.
Measure the resistance between ground and the Sensor Ground circuit.
Is the resistance below 10.0 ohms?
All
15
Yes
→ Repair the open Sensor Ground circuit.
Perform the Body Verification Test - Ver 1.
No
→ Go To
15
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
293
HEATING & A/C
Symptom List:
MODE DOOR FEEDBACK FAILURE
MODE DOOR STALL FAILURE
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be MODE DOOR FEEDBACK
FAILURE.
When Monitored and Set Condition:
MODE DOOR FEEDBACK FAILURE
When Monitored: At the first ignition on after a battery disconnect or upon request of the
HVAC control or the DRBIII.
Set Condition: This code will set if the BCM does not receive proper feedback signal when
drive voltage is being applied to the mode door actuator.
MODE DOOR STALL FAILURE
When Monitored:
Set Condition:
During HVAC motor calibration.
The BCM is unable to detect the end of travel for Mode Door actuator.
POSSIBLE CAUSES
BLEND AIR DOOR ACTUATOR
BODY CONTROL MODULE
MODE DOOR FEEDBACK SIGNAL CIRCUIT SHORT TO BATTERY
COMMON DOOR DRIVER WIRE OPEN
SENSOR GROUND WIRE OPEN
MODE DOOR FEEDBACK SIGNAL CIRCUIT OPEN
MODE DOOR DRIVER WIRE OPEN
MODE DOOR FEDBACK SIGNAL CIRCUIT SHORT TO GROUND.
5 VOLT SUPPLY CIRCUIT OPEN
5 VOLT SUPPLY CIRCUIT SHORT TO GROUND.
5 VOLT SUPPLY CIRCUIT SHORT TO VOLTAGE
5 VOLT SUPPLY CIRCUIT SHORT TO SENSOR GROUND
MODE DOOR ACTUATOR SHORT TO SENSOR GROUND
MODE DOOR ACTUATOR
MODE AIR DOOR ACTUATOR
BODY CONTROL MODULE-COMMON DOOR DRIVER
BODY CONTROL MODULE-MODE DOOR DRIVER
BODY CONTROL MODULE
294
HEATING & A/C
MODE DOOR FEEDBACK FAILURE —
Continued
TEST
ACTION
APPLICABILITY
1
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Turn the ignition on.
Measure the voltage of the 5 volt supply circuit (cavity 6) in the inline connector (I/P
harness side)
What voltage is present?
All
2
3
4
Zero volts.
Go To
2
4.5 to 5.5 Volts
Go To
6
Over 5.5 Volts
Go To
18
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance of the 5 volt supply wire between the BCM connector and the
inline (C202/3) connector (I/P harness side).
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open 5 Volt Supply circuit.
Perform the Body Verification Test - Ver 1.
All
3
Turn the ignition off.
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance of the 5 volt supply circuit to ground.
Is the resistance below 100.0 ohms?
Yes
→ Repair the 5 volt supply circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
4
Turn the ignition off.
Ensure the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in the
center of the instrument panel above the accelerator pedal is connected.
Disconnect the Body Control Module 9C19 connector
Disconnect the Body Control Module 9C29 connector.
Measure the resistance between the 5 volt supply circuit in the BCM 9C29 connector
and the sensor ground circuit in the BCM 9C19 connector.
Is the resistance below 2000.0 ohms?
Yes
→ Go To
No
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
5
295
All
HEATING & A/C
MODE DOOR FEEDBACK FAILURE —
Continued
TEST
ACTION
APPLICABILITY
5
Turn the ignition off.
Ensure the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in the
center of the instrument panel above the accelerator pedal is connected.
Disconnect the Body Control Module 9C19 connector
Disconnect the Body Control Module 9C29 connector.
Disconnect the Mode Door Actuator connector.
Measure the resistance between the 5 volt supply circuit in the BCM 9C29 connector
and the sensor ground circuit in the BCM 9C19 connector.
Is the resistance below 2000.0 ohms?
All
6
Yes
→ Ensure the wiring from the inline connector to the actuator is
okay. If the wiring is okay, replace the Blend Air Door Actuator.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
No
→ Ensure the harness from the inline connector to the actuator is
okay. If the wiring is okay, replace the Mode Door Actuator.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
Ensure the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in the
center of the instrument panel above the accelerator pedal is connected.
Turn the ignition on.
With the DRBIIIt, read the 9Mode Door9 voltage.
What voltage is present?
All
Above 5.5 volts.
Repair the mode door feedback signal circuit for a short to battery.
Perform the Body Verification Test - Ver 1.
From 0.29 to 5.5 volts.
Go To 7
Less than 0.28 volts
Go To 15
7
Turn the ignition off.
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Turn off all lights and close the driver door latch so the courtesy lamps will go off.
Measure the resistance of the sensor ground circuit (cavity #5) in the inline connector
(I/P harness side).
Is the resistance below 5.0 ohms?
Yes
→ Go To
8
No
→ Go To
13
296
All
HEATING & A/C
MODE DOOR FEEDBACK FAILURE —
Continued
TEST
ACTION
APPLICABILITY
8
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module 9C19 connector
Measure the resistance of the Common Door Driver circuit between the BCM 9C19
connector and the HVAC in line connector (cavity 1).
Is the resistance below 5.0 ohms?
All
9
10
Yes
→ Go To
No
→ Repair the open Common Door Driver Wire.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
9
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module 9C19 connector
Measure the resistance of the Mode Door Driver circuit between the BCM 9C19
connector and the HVAC in line connector (cavity 2).
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Mode Door Driver Wire.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
All
10
Turn the ignition off.
Ensure the 9C202/3 inline9 connector is connected at this time.
With the DRBIIIt, erase DTC’s.
Disconnect the BCM 9C19connector.
Backprobe one voltmeter lead to the Common Door Driver ckt in the BCM 9C19
connector and the other to chassis ground.
Reconnect the BCM 9C19 connector.
Turn the ignition on.
Push (move) the mode control as follows: Recirc switch Off: Panel Switch On: then
Recirc Switch ON while observing the voltmeter.
Did the voltage ever go above 10.0 volts?
Yes
→ Go To
No
→ Replace the Body Control Module (common door driver open).
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
11
297
All
HEATING & A/C
MODE DOOR FEEDBACK FAILURE —
Continued
TEST
ACTION
APPLICABILITY
11
Turn the ignition off.
Ensure the 9C202/3 inline9 connector is connected at this time.
With the DRBIIIt, erase DTC’s.
Disconnect the BCM 9C29connector.
Backprobe one voltmeter lead to the Mode Door Driver ckt in the BCM 9C29 connector
and the other to chassis ground.
Reconnect the BCM 9C29 connector.
Turn the ignition on.
Move the mode control from Defrost to Panel and observe voltmeter.
Did the voltage ever go above 10.0 volts?
All
12
Yes
→ Go To
No
→ Replace the Body Control Module (mode door driver open).
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
12
View repair options.
All
Repair
If the wiring to the actuator is okay and the mode door is not
binding, replace the Mode Door Actuator..
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
13
14
Turn the ignition off.
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module 9C19 connector
Measure the resistance of the sensor ground wire from the inline connector (cavity
#5) (I/P harness side) to the BCM 9C19 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open sensor ground wire.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
All
14
View repair options.
All
Repair
Check the Junction Block BCM connection. If okay, replace the
Body Control Module (sensor ground open).
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
298
HEATING & A/C
MODE DOOR FEEDBACK FAILURE —
Continued
TEST
ACTION
APPLICABILITY
15
Turn the ignition off.
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance of the Mode Door Feedback Signal circuit to ground.
Is the resistance below 1000.0 ohms?
All
16
17
Yes
→ Repair the mode door feedback signal circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
16
Turn the ignition off.
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module 9C29 connector.
Measure the resistance of the Mode Door Feedback Signal circuit between the BCM
9C29 connector and the Inline connector (cavity 11).
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open mode door feedback signal wire.
Perform the Body Verification Test - Ver 1.
All
17
View repair options.
All
Repair
Ensure the wiring to the actuator is okay. If the wiring is okay,
replace the Mode Door Actuator.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
18
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module 9C19 connector
Disconnect the Body Control Module 9C29 connector.
Turn the ignition on.
Measure the voltage between 5 volt supply circuit and ground.
Is there any voltage present?
Yes
→ Repair the 5 volt supply wire for a short to voltage.
Perform the Body Verification Test - Ver 1.
No
→ If there are no possible causes remaining, replace the Body
Control Module.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
299
All
HEATING & A/C
Symptom:
MODE DOOR OUTPUT SHORTED TO GROUND
When Monitored and Set Condition:
MODE DOOR OUTPUT SHORTED TO GROUND
When Monitored:
Whenever the BCM attempts to move one of the HVAC actuators.
Set Condition: When the BCM detects one or more of the following outputs shorted to
ground: mode driver, blend driver, recirc driver or common driver.
POSSIBLE CAUSES
MODE DOOR ACTUATOR
MODE DOOR DRIVER CIRCUIT SHORT TO GROUND
MODE DOOR DRIVER CKT SHORT TO SENSOR GROUND
MODE DOOR DRIVER WIRE SHORT TO SENSOR GROUND
TEST
1
2
ACTION
Turn all lights off. Close the driver door latch to turn courtesy lamps off.
Disconnect the Body Control Module 9C19 connector
Measure the resistance between ground and the Mode Door Driver circuit.
Is the resistance below 5.0 ohms?
Yes
→ Repair the Mode Door Driver circuit for a short to ground.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
All
2
Disconnect the Body Control Module 9C19 connector
Measure the resistance between the Mode Door Driver circuit and the Sensor Ground
circuit in the BCM 9C19 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Body Control Module.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
3
300
All
HEATING & A/C
MODE DOOR OUTPUT SHORTED TO GROUND —
Continued
TEST
ACTION
APPLICABILITY
3
Disconnect the Body Control Module 9C19 connector
Disconnect the Mode Door Actuator connector.
Measure the resistance between the Mode Door Driver circuit and the Sensor Ground
circuit in the BCM 9C19 connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Repair the Mode Door Driver wire for a short to the Sensor
Ground circuit.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
No
→ Replace the Mode Door Actuator.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
301
HEATING & A/C
Symptom:
RECIRC DOOR OUTPUT SHORT TO GROUND
When Monitored and Set Condition:
RECIRC DOOR OUTPUT SHORT TO GROUND
When Monitored:
Whenever the BCM attempts to move one of the HVAC actuators.
Set Condition: When the BCM detects one or more of the following outputs shorted to
ground: mode driver, blend driver, recirc driver or common driver.
POSSIBLE CAUSES
RECIRC DOOR DRIVER CIRCUIT SHORT TO GROUND
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Turn all lights off. Close the driver door latch to turn courtesy lamps off.
Disconnect the Body Control Module 9C19 connector
Measure the resistance between ground and the Recirculation Door Driver circuit.
Is the resistance below 5.0 ohms?
All
2
Yes
→ Repair the Recirculation Door Driver circuit for a short to ground.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
No
→ Go To
2
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
302
HEATING & A/C
Symptom:
RECIRCULATION DOOR TEST FAILURE
When Monitored and Set Condition:
RECIRCULATION DOOR TEST FAILURE
When Monitored:
Set Condition:
doors.
During HVAC motor calibration.
BCM is unable to detect the end of travel for one or more of the HVAC
POSSIBLE CAUSES
BODY CONTROL MODULE - COMMON DRIVER OPEN
BODY CONTROL MODULE - RECIRCULATION DRIVER OPEN
COMMON DOOR DRIVER CIRCUIT OPEN
RECIRCULATION DOOR DRIVER CIRCUIT OPEN
RECIRCULATION DOOR ACTUATOR - OPEN
TEST
1
2
3
ACTION
Turn (press) the Recirc Door switch off.
Turn the ignition off.
With the DRBIIIt, erase Body Control Module DTC’s.
Disconnect the Recirculation Door Actuator connector.
Connect a voltmeter between the Common Door Driver circuit and ground.
Turn the ignition on.
Turn (press) the Recirc Switch on while observing the voltmeter.
Did the voltage go to above 9.0 volts for over 6 seconds?
Yes
→ Go To
2
No
→ Go To
5
Turn (press) the Recirc Door switch off.
Turn the ignition off.
With the DRBIIIt, erase Body Control Module DTC’s.
Disconnect the Recirculation Door Actuator connector.
Connect a voltmeter between the Recirculation Door Driver circuit and ground.
Turn the ignition on.
Turn (press) the Recirc Switch on then off while observing the voltmeter.
Did the voltage go to above 9.0 volts for over 6 seconds?
Yes
→ Go To
3
No
→ Go To
4
View repair options.
APPLICABILITY
All
All
All
Repair
If there are no possible causes remaining, replace the Recirculation Door Actuator.
Perform the Body Verification Test - Ver 1.
303
HEATING & A/C
RECIRCULATION DOOR TEST FAILURE —
Continued
TEST
ACTION
APPLICABILITY
4
With the DRBIIIt, erase Body Computer DTC’s.
Turn the ignition off.
Disconnect the Body Control Module 9C19 connector.
Backprobe one lead of a voltmeter to the Recirculation Door Driver circuit in the 9C19
connector and the other lead to ground.
Reconnect the 9C19 connector to the BCM.
Turn the ignition on.
Turn (press) the Recirculate switch on, wait 5 seconds then turn (press) the
recirculate switch off while observing the voltmeter.
Did the voltmeter read above 9.0 volts for approximately 6 seconds?
All
5
Yes
→ Repair the open Recirculation Door Driver circuit.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
No
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
With the DRBIIIt, erase Body Computer DTC’s.
Turn the ignition off.
Disconnect the Body Control Module 9C19 connector.
Backprobe one lead of a voltmeter to the Common Door Driver circuit in the 9C19
connector and the other lead to ground.
Reconnect the 9C19 connector to the BCM.
Turn the ignition on.
Turn (press) the Recirculate switch off, wait 5 seconds then turn (press) the
recirculate switch on and observe the voltmeter.
Did the voltmeter read above 9.0 volts for approximately 6 seconds?
Yes
→ Repair the open Common Door Driver circuit.
Perform the Body Verification Test - Ver 1.
No
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
304
All
HEATING & A/C
Symptom:
SUN LOAD SENSOR FAILURE
When Monitored and Set Condition:
SUN LOAD SENSOR FAILURE
When Monitored:
With ignition on.
Set Condition: When the BCM senses an abnormally low voltage (below 0.313 volts) on
the sun sensor input.
POSSIBLE CAUSES
SUN SENSOR LOW
SUN SENSOR SIGNAL CIRCUIT SHORT TO GROUND
SUN SENSOR SIGNAL CIRCUIT SHORT TO SENSOR GROUND
BODY CONTROL MODULE - SUN SENSE LOW
TEST
1
2
3
ACTION
APPLICABILITY
Note: It is advisable to perform the (ATC System Test( before attempting to AIR CONDITIONING W/AUTO
diagnose this trouble code.
TEMP CONTROL
Disconnect the Sun Sensor/VTSS LED connector.
With the DRBIIIt, read the 9Sun Sensor9 voltage.
Is the voltage below 0.2 volts?
Yes
→ Go To
No
→ Replace the Sun Sensor
Perform the Body Verification Test - Ver 1.
2
Disconnect the Sun Sensor/VTSS LED connector.
Disconnect the Body Control Module 9C19 & 9C29 connectors.
Measure the resistance between ground and the Sun Sensor Signal circuit.
Is the resistance below 100.0 ohms?
Yes
→ Repair the Sun Sensor Signal circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
AIR CONDITIONING W/AUTO
TEMP CONTROL
3
AIR CONDITIONDisconnect the Sun Sensor/VTSS LED connector.
ING W/AUTO
Disconnect the Body Control Module 9C19 & 9C29 connectors.
Measure the resistance between the Sun Sensor Signal circuit and the Sensor TEMP CONTROL
Ground circuit in the Sun Sensor connector.
Is the resistance below 100.0 ohms?
Yes
→ Repair the Sun Sensor Signal circuit for a short to the Sensor
Ground circuit.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
305
HEATING & A/C
SUN LOAD SENSOR FAILURE —
TEST
4
Continued
ACTION
View repair options.
APPLICABILITY
AIR CONDITIONING W/AUTO
TEMP CONTROL
Repair
Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
306
HEATING & A/C
Symptom:
*ATC A/C CLUTCH INOPERATIVE
POSSIBLE CAUSES
BCM OKAY
BODY CONTROL MODULE - A/C MESSAGE
AUTOMATIC TEMP CONTROL HEAD-A/C BUTTON
TEST
1
2
ACTION
APPLICABILITY
Press and release the A/C button several times and listen for a 9beep9 from the BCM. AIR CONDITIONIs a 9beep9 heard each time the button is pressed?
ING W/AUTO
TEMP CONTROL
Yes
→ Go To
No
→ Replace the AutomaticTemperature Control Head
Perform the Body Verification Test - Ver 1.
2
AIR CONDITIONStart the engine.
ING W/AUTO
With the DRBIII select: 9Climate Control9, 9System Tests9, A/C on to BCM9.
TEMP CONTROL
Press the A/C Switch 9On9.
Note: Look for (On( or (Off( message in the following step (disregard (NR(
message if seen).
Does the DRB display 9A/C BCM: On9?
Yes
→ Refer to the symptom list for DTC’s and problems relating to
9Powertrain9.
Perform the Body Verification Test - Ver 1.
No
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
307
HEATING & A/C
Symptom:
*ATC BLOWER MOTOR INOPEATIVE
POSSIBLE CAUSES
GROUND CIRCUIT OPEN
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
FUSED IGNITION SWITCH OUTPUT SHORT TO GROUND
BLOWER FUSE DEFECTIVE
BLOWER MOTOR OPERATION
BLOWER MOTOR SHORT TO GROUND
BLOWER MOTOR CONTROL CIRCUIT SHORT TO GROUND
BLOWER MOTOR POWER MODULE OPEN
BLOWER MOTOR POWER MODULE SHORT TO GROUND
BODY CONTROL MODULE - BLOWER CONTROL GROUNDED
TEST
1
2
3
ACTION
Test the Blower Motor Fuse #23 in the Junction Block.
Is the fuse open?
Yes
→ Go To
2
No
→ Go To
6
Replace the Blower Motor 30A Fuse #23.
Operate the blower motor in all speeds.
Start the engine and operate the ATC system in all modes and speeds.
Recheck the fuse.
Did the fuse open again?
Yes
→ Go To
No
→ Test Complete - No problem at this time.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
AIR CONDITIONING W/AUTO
TEMP CONTROL
AIR CONDITIONING W/AUTO
TEMP CONTROL
3
AIR CONDITIONTurn the ignition off.
ING W/AUTO
Disconnect the Blower Motor Power Module connector.
Measure the resistance between ground and the Fused Ignition Switch Output TEMP CONTROL
circuit in the Power Module connector.
Is the resistance below 5.0 ohms?
Yes
→ Repair the Fused Ignition Switch Output ckt for a short to ground
and replace the fuse.
No
→ Go To
4
308
HEATING & A/C
*ATC BLOWER MOTOR INOPEATIVE —
TEST
4
5
Continued
ACTION
APPLICABILITY
AIR CONDITIONTurn the ignition off.
ING W/AUTO
Disconnect the Blower Motor Power Module connector.
TEMP CONTROL
Disconnect the Blower Motor 2-way connector at the power module.
Replace the Blower Motor Fuse #23
Connect a jumper wire between the Fused Ignition Switch Output circuit in the
Power Module connector and the DG wire on the Blower Motor connector.
Connect a jumper wire between the Ground circuit in the Power Module connector
and the Black wire on the Blower Motor connector.
Turn the ignition on.
Listen to the blower motor for proper operation.
Did the Blower Motor operate at full speed without blowing the fuse?
Yes
→ Go To
No
→ Replace the Blower Motor.
Perform the Body Verification Test - Ver 1.
5
View repair options.
AIR CONDITIONING W/AUTO
TEMP CONTROL
Repair
If there are no possible causes remaining, replace the Blower
Motor Power Module.
Perform the Body Verification Test - Ver 1.
6
7
8
Turn the ignition off.
Disconnect the Blower Motor Power Module.
Measure the resistance between ground and the Ground circuit.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open ground circuit.
Perform the Body Verification Test - Ver 1.
AIR CONDITIONING W/AUTO
TEMP CONTROL
7
AIR CONDITIONDisconnect the Blower Motor Power Module connector.
ING W/AUTO
Turn the ignition on.
Measure the voltage of the Fused Ignition Output circuit in the Power Module TEMP CONTROL
connector.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the open Fused Ignition Switch Output circuit.
8
AIR CONDITIONTurn the ignition off.
ING W/AUTO
Disconnect the Blower Motor Power Module.
TEMP CONTROL
Disconnect the Body Control Module 9C29 connector.
Measure the resistance of the Blower Motor Control circuit between ground and the
Blower Motor Power Module connector.
Is the resistance below 5.0 ohms?
Yes
→ Repair the Blower Motor Control circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
9
309
HEATING & A/C
*ATC BLOWER MOTOR INOPEATIVE —
TEST
9
10
11
Continued
ACTION
Turn the ignition off.
Disconnect the Body Control Module 9C29 connector.
Ensure the Blower Motor and Power Module are connected at this time.
Observe the Blower Motor.
Is the Blower Motor running at full speed?
Yes
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
AIR CONDITIONING W/AUTO
TEMP CONTROL
10
AIR CONDITIONTurn the ignition off.
ING W/AUTO
Disconnect the Blower Motor Power Module connector.
TEMP CONTROL
Disconnect the Blower Motor 2-way connector at the power module.
Connect a jumper wire between the Fused Ignition Switch Output circuit in the
Power Module connector and the DG wire on the Blower Motor connector.
Connect a jumper wire between the Ground circuit in the Power Module connector
and the Black wire on the Blower Motor connector.
Turn the ignition on.
Listen to the blower motor for proper operation.
Did the Blower Motor operate at full speed?
Yes
→ Go To
No
→ Replace the Blower Motor.
Perform the Body Verification Test - Ver 1.
11
View repair options.
AIR CONDITIONING W/AUTO
TEMP CONTROL
Repair
If there are no possible causes remaining, replace the Blower
Motor Power Module.
Perform the Body Verification Test - Ver 1.
310
HEATING & A/C
Symptom:
*ATC BLOWER MOTOR SPEEDS INCORRECT
POSSIBLE CAUSES
GROUND CIRCUIT OPEN
BLOWER MOTOR CONTROL CIRCUIT OPEN
GROUND CIRCUIT OPEN-JUNCTION BLOCK
BLOWER MOTOR CONTROL CIRCUIT SHORT TO VOLTAGE
BLOWER MOTOR POWER MODULE - NO CONTROL
BODY CONTROL MODULE - BLOWER CONTROL INOPERABLE
TEST
1
2
3
ACTION
Turn the ignition off.
Disconnect the Blower Motor Power Module.
Measure the resistance between ground and the Ground circuit.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open ground circuit.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
AIR CONDITIONING W/AUTO
TEMP CONTROL
2
AIR CONDITIONTurn the ignition off.
ING W/AUTO
Disconnect the Blower Motor Power Module.
TEMP CONTROL
Disconnect the Body Control Module 9C29 connector.
Measure the resistance of the Blower Motor Control circuit between the BCM 9C29
connector and the Blower Motor Power Module connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Blower Motor Control circuit.
Perform the Body Verification Test - Ver 1.
3
AIR CONDITIONTurn the ignition off.
ING W/AUTO
Disconnect the Blower Motor Power Module.
TEMP CONTROL
Disconnect the Body Control Module 9C29 connector.
Turn the ignition on.
Measure the voltage of the Blower Motor Control circuit between the BCM 9C29
connector and the Blower Motor Power Module connector.
Is there any voltage present?
Yes
→ Repair the Blower Motor Control circuit for a short to voltage.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
311
HEATING & A/C
*ATC BLOWER MOTOR SPEEDS INCORRECT —
TEST
4
5
6
Continued
ACTION
APPLICABILITY
AIR CONDITIONReconnect the power module connector.
ING W/AUTO
Disconnect the Body Control Module 9C29 connector.
Connect a jumper wire between the Blower Motor Control circuit in the BCM 9C29 TEMP CONTROL
connector and ground.
Turn the ignition on.
Does the Blower Motor still run on high speed?
Yes
→ Replace the Blower Motor Power Module.
Perform the Body Verification Test - Ver 1.
No
→ Go To
5
AIR CONDITIONRemove the Body Control Module from the Junction Block.
ING W/AUTO
Measure the resistance of the Ground circuits (terminals 1 & 20) in the Junction
TEMP CONTROL
Block BCM connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open ground circuit to the junction block. If OK,
replace the Junction Block.
Perform the Body Verification Test - Ver 1.
6
View repair options.
AIR CONDITIONING W/AUTO
TEMP CONTROL
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
312
HEATING & A/C
Symptom:
*ATC HEAD ILLUMINATION PROBLEM
POSSIBLE CAUSES
GROUND CIRCUIT OPEN
PANEL LAMPS DRIVER CIRCUIT OPEN
ATC CONTROL HEAD - ILLUMINATION PROBLEM
IDENTIFY ATC CONTROL HEAD ILLUMINATION PROBLEM
TEST
1
2
3
4
ACTION
Is the problem with the letters and LED lights?
Yes
→ Replace the ATC Control Head.
Perform the Body Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
All
2
Disconnect the ATC Head connector.
Turn off all lights.
Turn the ignition off.
Measure the resistance between ground and the Ground circuit.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open ground circuit.
Perform the Body Verification Test - Ver 1.
All
3
Note: This path repairs the background lights.
Disconnect the ATC Head connector.
Turn the park lamps on.
Measure the voltage between Panel Lamps Driver circuit and ground.
Rotate the Dimmer Switch Thumb Wheel and observe the voltage.
Does the voltage range from below 3.5 volts to above 9.0 volts when the switch is
rotated?
Yes
→ Go To
No
→ Repair the open panel lamps driver circuit.
Perform the Body Verification Test - Ver 1.
All
4
View repair options.
All
Repair
If there are no possible causes remaining, replace the ATC Control
Head.
Perform the Body Verification Test - Ver 1.
313
HEATING & A/C
Symptom:
*ATC SYSTEM TEST
POSSIBLE CAUSES
ATC SYSTEM TEST
TEST
1
ACTION
APPLICABILITY
Ensure there is vehicle communication with the Body Control Module, the Automatic AIR CONDITIONING W/AUTO
Temp Control Module (head) and the Powertrain Control Module before proceeding.
TEMP CONTROL
If not, refer to the Vehicle Communication catagory for the related symptom.
With the DRBIIIt, read 9Engine9 DTC’s. If any climate control related DTC’s, refer to
the appropriate catagory for the related symptoms.
With the DRBIIIt, read the 9Ignition Voltage9. If it does not show battery voltage
when the ignition is on, refer to the Vehicle Communication catagory for the related
symptom.
With the DRBIIIt, read 9Body DTC’s9. If any climate control related codes are
present, continue to the next step. If no codes are present, recalibrate the doors &
BCM and recheck the system.
Record and erase the code(s).
Set the temperature control at 75°, start the engine and with the DRB 9Read DTC’s9.
If no code appears, slowly turn the temperature control from 65° to 85°, then back to
65° while observing the DRB for codes. If a code appears, refer to the climate control
category for the related symptom.
If a code still does not appear, turn the ATC control from 60° to 90°, then back to 60°.
Push each mode button waiting 20 seconds between each one. Upon seeing the first
code appear, stop, erase the code and perform the appropriate test.
If no codes appear, re calibrate the doors by pressing and holding the floor, mix and
defrost buttons at the same time until the display starts to flash. Observe the DRB
for DTC’s.
When the first code appears, record that code and allow the system to finish
calibration.
Note: If multiple codes appear, repair any that relate to a short circuit first.
If a short to battery code is set, all 4 (Output Shorted to Battery( codes will
appear. It will then be necessary to isolate each cirfcuit to determine which
is at fault.
Erase the DTC(s) and refer to the Climate Control category for the related symptom
of the first code that appeared..
If no codes have appeared, press 9Repair9 to view repair option
Repair
Re calibrate the doors, reset the BCM and ATC head and recheck
the ATC system performance.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
314
HEATING & A/C
Symptom:
*ATC TEMPERATURE CONTROL INCORRECT IN SUN OR SHADE
POSSIBLE CAUSES
SENSOR GROUND OPEN
CHECK SUN SENSOR HIGH
SUN SENSOR HIGH
SUN SENSOR SIGNAL CIRCUIT SHORT TO VOLTAGE
BODY CONTROL MODULE - SUN SENSOR HIGH
SUN SENSOR SIGNAL WIRE OPEN
TEST
1
2
3
4
ACTION
APPLICABILITY
Note: It is advisable to perform the (ATC System Test( before attempting to AIR CONDITIONING W/AUTO
diagnose this symptom to ensure there are no DTC’s.
TEMP CONTROL
Disconnect the Sun Sensor/VTSS LED connector.
With the DRBIIIt, read the 9Sun Sensor9 voltage.
Is the voltage below 4.8 volts?
Yes
→ Replace the Body Control Module - Sun Sensor High.
Perform the Body Verification Test - Ver 1.
No
→ Go To
2
Disconnect the Sun Sensor/VTSS LED connector.
Turn the ignition on.
Measure the voltage between ground and the Sun Sensor Signal circuit.
Is the voltage above 5.2 volts?
Yes
→ Repair the Sun Sensor Signal circuit for a short to voltage. If okay,
replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
No
→ Go To
AIR CONDITIONING W/AUTO
TEMP CONTROL
3
AIR CONDITIONDisconnect the Sun Sensor/VTSS LED connector.
ING W/AUTO
Connect a jumper wire between the Sun Sensor Signal circuit and the Signal Ground
TEMP CONTROL
circuit in the sensor connector.
With the DRBIIIt, read the 9Sun Sensor9 voltage.
Does the DRBIIIt display 9Sun Sensor: Below 0.2 volts9?
Yes
→ Replace the Sun Sensor
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
Disconnect the Sun Sensor/VTSS LED connector.
Connect a jumper wire between the Sun Sensor Signal circuit and Ground.
With the DRBIIIt, read the 9Sun Sensor9 voltage.
Does the DRBIIIt display 9Sun Sensor: Below 0.2 volts9?
Yes
→ Repair the open Sensor Ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
5
315
AIR CONDITIONING W/AUTO
TEMP CONTROL
HEATING & A/C
*ATC TEMPERATURE CONTROL INCORRECT IN SUN OR SHADE —
Continued
TEST
5
6
ACTION
APPLICABILITY
AIR CONDITIONDisconnect the Sun Sensor/VTSS LED connector.
ING W/AUTO
Disconnect the Body Control Module 9C29 connectors.
Measure the resistance of the Sun Sensor Signal circuit between the BCM 9C29 TEMP CONTROL
connector and the Sun Sensor connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Sun Sensor Signal circuit.
Perform the Body Verification Test - Ver 1.
6
View repair options.
AIR CONDITIONING W/AUTO
TEMP CONTROL
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
316
HEATING & A/C
Symptom:
*BLEND AIR DOOR INOPERATIVE
POSSIBLE CAUSES
COMMON DOOR DRIVER WIRE OPEN
BLEND AIR DOOR DRIVER WIRE OPEN
BLEND AIR DOOR ACTUATOR CHECK
BLEND AIR DOOR INOPERABLE PRE TEST
BODY CONTROL MODULE
ATC CONTROL HEAD BLEND DOOR BUTTONS OPEN
TEST
1
2
3
ACTION
APPLICABILITY
Note: Disregard this test if this vehicle is NOT equipped with Automatic AIR CONDITIONING W/AUTO
Temp Control.
Press the 9Temperature9 switch all the way to the 9Low9 position and then to the TEMP CONTROL
9High9 position.
Did the display change smoothly from the 9Low9 to the 9High9 position?
Yes
→ Go To
No
→ Replace the Automatic Temperature Control Head.
Perform the Body Verification Test - Ver 1.
2
Note: It is very easy for this system to set trouble codes (any connector
disconnected, any small bind in a door, etc.). Because of this, it is advisable
to perform a System Test before proceeding to prevent a wrong repair.
Has the appropriate 9A/C System Test9 been performed to ensure this vehicle has no
current DTC’s?
Yes
→ Go To
No
→ Refer to the Heating & A/C category and select the appropriate
9System Test9.
Perform the Body Verification Test - Ver 1.
All
3
Turn the ignition off.
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Using a voltmeter, connect one lead to the Blend Air Door Driver (cavity 3) in the
C202/3 in-line connector (I/P harness side) and the other to body ground.
With the DRBIIIt, erase 9Body Controller9 DTC’s.
Turn the ignition on and observe the voltmeter. The voltmeter should show approximately .1 volt for about 10 seconds and then slowly begin to toggle from about 2 volts
to approximately 10 volts for approximately 20 to 30 seconds and then go to 0 volts.
If it doe’s not toggle at all, repeat the procedure 2 or 3 times starting with key off and
clear DTC’s then key on. After the ignition is turned on, the BCM will only be active
for about 20 or 30 seconds.
Did the voltmeter toggle and then go to zero?
Yes
→ If the wiring to the actuator is Okay, replace the Blend Air Door
Actuator.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
317
All
HEATING & A/C
*BLEND AIR DOOR INOPERATIVE —
Continued
TEST
ACTION
APPLICABILITY
4
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module 9C19 connector
Measure the resistance of the Common Door Driver circuit between the BCM 9C19
connector and the HVAC in line connector (cavity 1).
Is the resistance below 5.0 ohms?
All
5
6
Yes
→ Go To
No
→ Repair the open Common Door Driver Wire.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
5
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module 9C19 connector
Measure the resistance of the Blend Air Door Driver circuit between the BCM 9C19
connector and the HVAC in line connector (cavity 3).
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Blend Air Door Driver wire.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
All
6
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
318
HEATING & A/C
Symptom:
*MANUAL A/C - BLOWER MOTOR SPEEDS INCORRECT
POSSIBLE CAUSES
BLOWER MOTOR DRIVER WIRE OPEN
BLOWER MOTOR RESISTOR - OPEN SPEED
CONTROL HEAD - BLOWER SPEEDS INCORRECT
TEST
1
2
3
ACTION
APPLICABILITY
AIR CONDITIONDisconnect the Manual Temperature Control Head 9C29 connector.
ING
Turn the ignition on.
Measure the voltage between each of the Blower Motor Driver circuits (cavities
2,3,7,and 10) and ground.
Is the voltage above 10.0 volts on each of the circuits?
Yes
→ Replace the Control Head.
Perform the Body Verification Test - Ver 1.
No
→ Go To
2
Turn the ignition off.
Turn the Blower Switch to the off position.
Disconnect the Manual Temperature Control Head 9C29 connector.
Disconnect the Blower Motor Resistor Block connector.
Measure the resistance of each of the 4 Blower Motor Driver wires between the
Resistor connector and the Control Head connector.
Is the resistance below 5.0 ohms on each of the wires?
Yes
→ Go To
No
→ Repair the open Blower Motor Driver wire.
Perform the Body Verification Test - Ver 1.
All
3
View repair options.
All
Repair
If there are no possible causes remaining, replace the Blower
Motor Resistor.
Perform the Body Verification Test - Ver 1.
319
HEATING & A/C
Symptom:
*MANUAL A/C - CLUTCH INOPERATIVE - NO LED
POSSIBLE CAUSES
FAN OFF SIGNAL WIRE OPEN
CONTROL HEAD - A/C SWITCH NO LED
BODY CONTROL MODULE - FAN OFF SWITCH SIGNAL OPEN
TEST
1
2
3
ACTION
APPLICABILITY
Note: Ensure there are no climate control related DTC’s in the BCM and AIR CONDITIONING
PCM before proceeding. If there is, refer to symptom list for problems
related to A/C Clutch.
Disconnect the Manual Temperature Control Head 9C29 connector.
Turn the ignition on.
Measure the voltage between the Fan Off Switch Signal circuit and ground.
Is the voltage approximately 5.0 volts?
Yes
→ Replace the Control Head.
Perform the Body Verification Test - Ver 1.
No
→ Go To
2
AIR CONDITIONTurn the ignition off.
ING
Disconnect the Manual Temperature Control Head 9C29 connector.
Disconnect the Body Control Module 9C19 connector.
Measure the resistance of the Fan Off Switch Signal circuit between the Control
Head 9C29 connector and the BCM 9C19 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Fan Off Signal wire.
Perform the Body Verification Test - Ver 1.
3
View repair options.
AIR CONDITIONING
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
320
HEATING & A/C
Symptom:
*MANUAL A/C - CONTROL HEAD BUTTON SWITCH INOPERATIVE
POSSIBLE CAUSES
CONTROL HEAD SWITCHES OKAY
CONTROL HEAD - OPEN SWITCH
TEST
1
ACTION
APPLICABILITY
AIR CONDITIONWith the DRBIIIt, read the 9Mode Switch Mux9 voltage.
ING
Press and hold the A/C button and observe the DRB voltage (should be approximately
0.45 volts).
Press and hold the Rear Defogger button and observe the DRB voltage (should be
approximately 0.25 volts).
Which switch failed?
A/C Button Switch
Replace the Control Head.
Perform the Body Verification Test - Ver 1.
EBL Button Switch
Replace the Control Head.
Perform the Body Verification Test - Ver 1.
Both Passed
According to your answers, there is no problem at this time with
the Control Head Switches. Retry the system and recheck for
DTC’s
321
HEATING & A/C
Symptom:
*MANUAL A/C BLOWER MOTOR INOPERATIVE
POSSIBLE CAUSES
BLOWER MOTOR - SHORT TO GROUND
FUSED IGNITION SWITCH OUTPUT CKT SHORT TO GROUND
HEAD- MOTOR DRIVER OPEN
RESISTOR-OPEN HI BLOWER MOTOR DRIVER
GROUND CKT OPEN
IGNITION SWITCH OUTPUT CKT OPEN
BLOWER MOTOR DRIVER CKT OPEN
FUSED IGNITION SWITCH OUTPUT OPEN
BLOWER MTR FUSE-REPLACE
FUSED IGNITION SWITCH OUTPUT OPEN (MOTOR)
BLOWER MOTOR INOPERATIVE
BLOWER MOTOR OPEN
TEST
1
2
3
ACTION
Test the Blower Motor Fuse (located in the Junction Block).
Is the fuse open?
Yes
→ Go To
2
No
→ Go To
4
Replace the Blower Motor fuse.
Turn the ignition on.
Turn the blower on and operate it in all speeds and modes.
Does the blower motor operate properly without blowing the fuse?
Yes
→ According to your answers the only problem is the fuse was open.
Check for any possible intermittent problem which may have
caused the fuse to blow.
Perform the Body Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
All
All
3
Turn the ignition off.
Turn the Blower Motor Switch off.
Disconnect the Blower Motor 2-way connector.
Measure the resistance between the Fused Ignition Switch Output circuit (the DG
wire in the blower motor 2-way connector) and ground.
Is the resistance below 5.0 ohms?
Yes
→ Repair the Fused Ignition Switch Output circuit for a short to
ground and replace the fuse.
Perform the Body Verification Test - Ver 1.
No
→ Replace the Blower Motor and fuse.
Perform the Body Verification Test - Ver 1.
322
All
HEATING & A/C
*MANUAL A/C BLOWER MOTOR INOPERATIVE —
Continued
TEST
ACTION
APPLICABILITY
4
Turn the ignition on.
Measure the voltage between the Ignition Switch Output circuit (in the junction
block) and ground.
Is the voltage above 10.0 volts?
All
5
6
7
8
Yes
→ Go To
No
→ Repair the open Ignition Switch Output circuit from the ignition
switch. If Okay, replace the Junction Block.
Perform the Body Verification Test - Ver 1.
5
Ensure the Blower Motor Fuse is installed before proceeding.
Turn the Blower Motor Switch off.
Disconnect the Blower Motor Resistor connector.
Turn the ignition on.
Measure the voltage between the Ignition Switch Output circuit (in the blower motor
resistor connector) and ground.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the open Fused Ignition Switch Output circuit.
Perform the Body Verification Test - Ver 1.
All
6
Ensure the Blower Motor Resistor is connected at this time.
Turn the ignition on.
While backprobing, measure the voltage of the Fused Ignition Switch Output ckt at
the Blower Motor connector (DG wire).
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Replace the Blower Motor Resistor.
Perform the Body Verification Test - Ver 1.
All
7
Turn the Blower Motor Switch off.
Turn the ignition on.
While backprobing, measure the voltage of the Blower Motor Driver circuit at the
blower motor connector (BK wire).
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Replace the Blower Motor.
Perform the Body Verification Test - Ver 1.
All
8
Turn the Blower Motor Switch off.
Turn the ignition on.
Backprobe a jumper wire from the Blower Motor Driver ckt at the Blower Motor
connector (BK wire) to ground.
Did the blower motor run on high speed?
Yes
→ Go To
No
→ Replace the Blower Motor.
Perform the Body Verification Test - Ver 1.
9
323
All
HEATING & A/C
*MANUAL A/C BLOWER MOTOR INOPERATIVE —
Continued
TEST
ACTION
APPLICABILITY
9
Disconnect the Manual Control Head 9C29 connector.
Connect a jumper wire between the Hi Blower Motor Driver and ground in the
Control Head connector.
Turn the ignition on.
Did the blower motor run on high speed?
All
10
11
Yes
→ Go To
10
No
→ Go To
11
Disconnect the Manual Control Head 9C29 connector.
Turn the ignition off.
Measure the resistance between ground and the Ground circuit in the Control Head
9C29 connector.
Is the resistance below 5.0 ohms?
Yes
→ Replace the Control Head.
Perform the Body Verification Test - Ver 1.
No
→ Repair the open Ground circuit.
Perform the Body Verification Test - Ver 1.
Turn the ignition off.
Disconnect the Manual Control Head 9C29 connector.
Disconnect the Blower Motor Resistor connector.
Measure the resistance of the Hi Blower Motor Driver circuit between the Control
Head 9C29 connector and the Blower Motor Resistor connector.
Is the resistance below 5.0 ohms?
Yes
→ Replace the Blower Motor Resistor.
Perform the Body Verification Test - Ver 1.
No
→ Repair the open Hi Blower Motor Driver circuit.
Perform the Body Verification Test - Ver 1.
324
All
All
HEATING & A/C
Symptom:
*MANUAL A/C CONTROL HEAD ILLUMINATION
POSSIBLE CAUSES
GROUND CKT OPEN
PANEL LAMPS DRIVER CKT OPEN
CONTROL HEAD - LAMPS INOPERATIVE
TEST
1
2
3
ACTION
APPLICABILITY
Note: Ensure the panel lamps operate properly on the instrument cluster AIR CONDITIONING
before proceeding. If not, refer to symptom list for problems related to
Instrument Cluster.
Turn the ignition off.
Disconnect the Manual Temp Control Head 9C19 connector.
Turn the Park Lamps on.
Measure the voltage between Panel Lamps Driver circuit and ground.
Rotate the Dimmer Switch Thumb Wheel and observe the voltage change.
Does the voltage range from below 3.5 volts to above 9.0 volts when the switch is
rotated?
Yes
→ Go To
No
→ Repair the open Panel Lamps Driver circuit.
Perform the Body Verification Test - Ver 1.
2
AIR CONDITIONTurn the ignition off.
ING
Disconnect the Manual Temp Control Head 9C19 connector.
Ensure all lights are off (trip driver door latch if necessary to shut courtesy lamps
off).
Measure the resistance between ground and the Ground circuit in the control head
connector..
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Ground circuit
Perform the Body Verification Test - Ver 1.
3
View repair options.
AIR CONDITIONING
Repair
Check the bulbs. If Okay, replace the Control Head.
Perform the Body Verification Test - Ver 1.
325
HEATING & A/C
Symptom:
*MANUAL A/C SYSTEM TEST
POSSIBLE CAUSES
MANUAL A/C SYSTEM TEST
TEST
1
ACTION
APPLICABILITY
Ensure there is vehicle communication with the Body Control Module and the AIR CONDITIONING
Powertrain Control Module before proceeding. If not, refer to the Vehicle Communication catagory for the related symptom.
With the DRBIIIt, read 9Engine9 DTC’s. If any climate control related DTC’s, refer to
the appropriate catagory for the related symptoms.
With the DRBIIIt, read the 9Ignition Voltage9. If it does not show battery voltage
when the ignition is on, refer to the Vehicle Communication catagory for the related
symptom.
With the DRBIIIt, read 9Body DTC’s9. If any climate control related codes are
present, continue to the next step. If no codes are present, recalibrate the doors and
recheck the system.
Record and erase the code(s).
Turn the blower on, set the temperature control at mid position, start the engine and
with the DRB 9Read DTC’s9.
If no code appears, slowly turn the temperature control from cold to hot, then back to
cold while observing the DRB. If a code appears, refer to the climate control catagory
for the related symptom.
If a code still does not appear, turn the mode switch to each position, waiting 20
seconds between each one. Momentarily press the A/C and Rear Defog buttons. Upon
seeing the first code appear, stop and perform the appropriate test.
Note: If multiple codes appear, repair any that relate to a short circuit first.
If a short to battery code is set, all 4 (Output Shorted to Battery( codes will
appear. It will then be necessary to isolate each circuit to determine which
is at fault.
If DTC’s have appeared, refer to the Climate Control catagory and select the
appropriate symptom.
If no codes have appeared, press 9Repair9 to view repair option
Repair
Re calibrate the doors, reset the BCM and recheck the climate
system performance.
326
HEATING & A/C
Symptom:
*MODE DOOR INOPERATIVE
POSSIBLE CAUSES
COMMON DOOR DRIVER WIRE OPEN
MODE DOOR DRIVER WIRE OPEN
MODE DOOR ACTUATOR CHECK
MODE DOOR INOPERATIVE PRE TEST
BODY CONTROL MODULE - MODE DOOR DRIVER OPEN
ATC CONTROL HEAD- MODE DOOR BUTTON OPEN
TEST
ACTION
APPLICABILITY
1
Note: It is very easy for this system to set trouble codes (any connector
disconnected, any small bind in a door, etc.). Because of this, it is advisable
to perform a System Test before proceeding to prevent a wrong repair.
Has the appropriate 9A/C System Test9 been performed to ensure this vehicle has no
current DTC’s?
All
2
Yes
→ Go To
No
→ Refer to the Heating & A/C category and select the appropriate
9System Test9.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
2
Note: Disregard this test if this vehicle is NOT equipped with Automatic AIR CONDITIONING W/AUTO
Temp Control.
TEMP CONTROL
With the DRBIIIt, read the 9Automatic Temperature Control9 9Input/Outputs9.
Press and hold each switch (except 9Temp9) and observe the switch state on the DRB.
Do the switch states change from 9Open9 to 9Close9 when each switch is pressed?
Yes
→ Go To
No
→ Replace the Automatic Temperature Control Head.
Perform the Body Verification Test - Ver 1.
3
327
HEATING & A/C
*MODE DOOR INOPERATIVE —
Continued
TEST
ACTION
APPLICABILITY
3
Press (turn) 9Defrost9 on.
Turn the ignition off.
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Using a voltmeter, connect one lead to the Common Door Driver (cavity 1) and the
other to the Mode Door Driver (cavity 2) in the C202/3 in-line connector (I/P harness
side).
With the DRBIIIt, erase 9Body Controller9 DTC’s.
Turn the ignition on and observe the voltmeter. The voltmeter should toggle from
approximately 2 volts to approximately 10 volts for approximately 20 to 30 seconds
and then go to 0 volts.
If it doe’s not toggle at all, repeat the procedure 2 or 3 times starting with key off and
clear DTC’s then key on. After the ignition is turned on, the BCM will only be active
for about 20 seconds.
Did the voltmeter toggle and then go to zero?
All
4
5
6
Yes
→ If the wiring to the actuator is Okay, replace the Mode Door
Actuator.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module 9C19 connector
Measure the resistance of the Common Door Driver circuit between the BCM 9C19
connector and the HVAC in line connector (cavity 1).
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Common Door Driver Wire.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
All
5
Disconnect the C202 (manual A/C) or C203 (ATC) in-line connector (HVAC) located in
the center of the instrument panel above the accelerator pedal.
Disconnect the Body Control Module 9C19 connector
Measure the resistance of the Mode Door Driver circuit between the BCM 9C19
connector and the HVAC in line connector (cavity 2).
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Mode Door Driver Wire.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
All
6
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Calibration must be performed after repair/replacement is complete.
Perform the Body Verification Test - Ver 1.
328
INSTRUMENT CLUSTER
Symptom:
DIMMING LEVEL SWITCH FAILURE
When Monitored and Set Condition:
DIMMING LEVEL SWITCH FAILURE
When Monitored:
Continuously.
Set Condition: The BCM detects an open or short circuit condition for 10 seconds on the
dimming level switch input.
POSSIBLE CAUSES
BODY CONTROL MODULE
BODY CONTROL MODULE
BODY CONTROL MODULE
OPEN HEADLAMP SWITCH RETURN CIRCUIT
PANEL LAMP DIMMER SIGNAL CIRCUIT SHORTED TO GROUND
CHECK THE PANEL LAMP DIMMER SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE
OPEN PANEL LAMP DIMMER SIGNAL CIRCUIT
PANEL LAMP DIMMER SIGNAL CIRCUIT SHORTED TO THE HEADLAMP SWITCH RETURN
CIRCUIT
PANEL LAMP DIMMER SIGNAL CIRCUIT SHORTED TO VOLTAGE
BODY CONTROL MODULE
BODY CONTROL MODULE
WITH THE DRB OBSERVE THE DIMMING LEVEL VOLTAGE WITH HEADLAMP SWITCH DISCONNECTED
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, enter 9Body Computer9 then 9Sensors9 and observe the dimming level
voltage
Is the voltage between 0.2 and 4.0 volts?
All
2
Yes
→ Go To
2
No
→ Go To
3
With the DRB, erase DTC’s.
Turn the ignition on and rotate the dimming level switch from low to high several
times.
With the DRB, read DTC’s.
Did this DTC reset?
Yes
→ If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
329
All
INSTRUMENT CLUSTER
DIMMING LEVEL SWITCH FAILURE —
Continued
TEST
ACTION
APPLICABILITY
3
Turn the ignition on.
With the DRB, enter 9Body Computer9 then 9Sensors9 and observe the dimming level
voltage
Is the voltage above 4.8 volts?
All
4
5
6
7
Yes
→ Go To
4
No
→ Go To
10
Turn the ignition off.
Note: Make sure all doors are closed and all lamps are turned off.
Disconnect the Headlamp Switch harness connector.
Measure the resistance between ground and the Headlamp Switch Return circuit.
Is the resistance below 20.0 ohms?
Yes
→ Go To
5
No
→ Go To
9
Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Turn the ignition on.
Measure the voltage of the Panel Lamp Dimmer Signal circuit.
Is the voltage above 10.0 volts?
Yes
→ Go To
6
No
→ Go To
8
Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Turn the ignition on.
Using a 12-volt Test Light connected to ground, probe the Panel Lamp Dimmer
Signal circuit.
Is the test light illuminated?
Yes
→ Go To
No
→ Replace the Headlamp Switch.
Perform the Body Verification Test - Ver 1.
All
All
All
7
Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Disconnect the BCM 9C29 harness connector.
Turn the ignition on.
Using a 12-volt Test Light connected to ground, probe the Panel Lamp Dimmer
Signal circuit.
Is the test light illuminated?
Yes
→ Repair the Panel Lamp Dimmer Signal circuit for a short to
voltage.
Perform the Body Verification Test - Ver 1.
No
→ If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
330
All
INSTRUMENT CLUSTER
DIMMING LEVEL SWITCH FAILURE —
Continued
TEST
ACTION
APPLICABILITY
8
Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Disconnect the BCM 9C29 harness connector.
Measure the resistance of the Panel Lamp Dimmer Signal circuit between the
Headlamp Switch connector and the BCM 9C29 connector.
Is the resistance below 5.0 ohms?
All
9
10
11
12
Yes
→ If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
No
→ Repair the Panel Lamp Dimmer Signal circuit for an open.
Perform the Body Verification Test - Ver 1.
Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Disconnect the BCM 9C29 harness connector.
Measure the resistance of the Headlamp Switch Return circuit between the Headlamp Switch connector and the BCM 9C29 connector.
Is the resistance below 5.0 ohms?
Yes
→ If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
No
→ Repair the Headlamp Switch Return circuit for an open.
Perform the Body Verification Test - Ver 1.
Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Disconnect the BCM 9C29 harness connector.
Measure the resistance between ground and the Panel Lamp Dimmer Signal circuit.
Is the resistance below 5.0 ohms?
Yes
→ Repair the Panel Lamp Dimmer Signal circuit for a short to
ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
All
11
Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Disconnect the BCM 9C29 harness connector.
Measure the resistance between the Panel Lamp Dimmer Signal circuit and the
Headlamp Switch Return circuit.
Is the resistance below 5.0 ohms?
Yes
→ Repair the Panel Lamp Dimmer Signal circuit for a short to the
Headlamp Switch Return circuit.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
12
Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Turn the ignition on.
With the DRB, enter 9Body Computer9 then 9Sensors9 and observe the dimming level
voltage
Is the voltage above 5.0 volts?
Yes
→ Replace the Headlamp Switch.
Perform the Body Verification Test - Ver 1.
No
→ Go To
13
331
All
INSTRUMENT CLUSTER
DIMMING LEVEL SWITCH FAILURE —
TEST
13
Continued
ACTION
View repair options.
APPLICABILITY
All
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
332
INSTRUMENT CLUSTER
Symptom:
FUEL LEVEL SENDING UNIT FAILURE
When Monitored and Set Condition:
FUEL LEVEL SENDING UNIT FAILURE
When Monitored:
Set Condition:
With the ignition on.
The BCM detects a high than normal voltage on the fuel level input.
POSSIBLE CAUSES
BODY CONTROL MODULE
BODY CONTROL MODULE
FUEL PUMP MODULE
OPEN GROUND CIRCUIT
MEASURE THE FUEL LEVEL SENSOR SIGNAL CIRCUIT
OPEN FUEL LEVEL SENSOR SIGNAL CIRCUIT
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Gain access to the body harness C308 connector by removing the rear seat cushion.
Disconnect the C308 harness connector.
Turn the ignition on.
Measure the voltage of the Fuel Level Sensor Signal circuit.
Is the voltage above 10.0 volts?
All
2
3
Yes
→ Go To
2
No
→ Go To
5
Turn the ignition on.
Using a 12-volt Test Light connected to ground, probe the fuel level sensor signal
circuit at the body harness C308 connector.
Is the test light illuminated?
Yes
→ Go To
3
No
→ Go To
4
Turn the ignition off.
Disconnect the BCM 9C49 harness connector.
Turn the ignition on.
Using a 12-volt Test Light connected to ground, probe the fuel level sensor signal
circuit at the body harness C308 connector.
Is the test light illuminated?
Yes
→ Repair the fuel level sensor signal circuit for a short to voltage.
Perform the Body Verification Test - Ver 1.
No
→ If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
333
All
All
INSTRUMENT CLUSTER
FUEL LEVEL SENDING UNIT FAILURE —
TEST
4
5
Continued
ACTION
Turn the ignition off.
Measure the resistance between ground and the ground circuit.
Is the resistance below 5.0 ohms?
Yes
→ If there are no possible causes remaining, replace the Fuel Pump
Module.
Perform the Body Verification Test - Ver 1.
No
→ Repair the Ground circuit for an open.
Perform the Body Verification Test - Ver 1.
Turn the ignition on.
With the DRB, enter 9Body Computer9 then 9Sensors9 and observe the fuel level
voltage.
Is the voltage above 9.0 volts?
Yes
→ Repair the Fuel Level Sensor Signal circuit for an open.
Perform the Body Verification Test - Ver 1.
No
→ If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
334
APPLICABILITY
All
All
INSTRUMENT CLUSTER
Symptom:
NO MESSAGES FROM ABS
When Monitored and Set Condition:
NO MESSAGES FROM ABS
When Monitored:
Set Condition:
With the ignition on.
No ABS messages received for 10 seconds.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE ANTILOCK BRAKE CONTROL MODULE
INSTRUMENT CLUSTER
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, attempt to communicate with the antilock brake control module.
Was the DRB able to I/D or communicate with the antilock brake control module?
All
2
Yes
→ Go To
No
→ Refer to the Communication category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
2
With the DRB, erase Instrument Cluster DTC’s.
Turn the ignition on and wait approximately 1 minute.
With the DRB, read Instrument Cluster DTC’s.
Did this DTC reset?
Yes
→ If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
335
All
INSTRUMENT CLUSTER
Symptom:
NO MESSAGES FROM AECM
When Monitored and Set Condition:
NO MESSAGES FROM AECM
When Monitored:
Set Condition:
With the ignition on.
No airbag messages received for 5 seconds.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE AIRBAG CONTROL MODULE
INSTRUMENT CLUSTER
TEST
1
2
ACTION
Turn the ignition on.
With the DRB, attempt to communicate with the airbag control module.
Was the DRB able to I/D or communicate with the airbag control module?
Yes
→ Go To
No
→ Refer to the Communication category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
With the DRB, erase Instrument Cluster DTC’s.
Turn the ignition on and wait approximately 1 minute.
With the DRB, read Instrument Cluster DTC’s.
Did this DTC reset?
Yes
→ If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
336
All
INSTRUMENT CLUSTER
Symptom:
NO MESSAGES FROM BCM
When Monitored and Set Condition:
NO MESSAGES FROM BCM
When Monitored:
Set Condition:
With ignition on.
No BCM messages received for 5 seconds.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE BCM
INSTRUMENT CLUSTER
TEST
1
2
ACTION
Turn the ignition on.
With the DRB, enter 9Body9 then 9Body Computer9.
Was the DRB able to I/D or communicate with the BCM?
Yes
→ Go To
No
→ Refer to the Communication category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
With the DRB, erase Instrument Cluster DTC’s.
Turn the ignition on and wait approximately 1 minute.
With the DRB, read Instrument Cluster DTC’s.
Did this DTC reset?
Yes
→ If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
337
All
INSTRUMENT CLUSTER
Symptom:
NO MESSAGES FROM EATX
When Monitored and Set Condition:
NO MESSAGES FROM EATX
When Monitored:
Set Condition:
With the ignition on.
No EATX messages received for 10 seconds.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE TCM
INSTRUMENT CLUSTER
TEST
1
2
ACTION
Turn the ignition on.
With the DRB, enter 9Transmission9.
Was the DRB able to I/D or communicate with the TCM?
Yes
→ Go To
No
→ Refer to the Communication category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
With the DRB, erase Instrument Cluster DTC’s.
Turn the ignition on and wait approximately 1 minute.
With the DRB, read Instrument Cluster DTC’s.
Did this DTC reset?
Yes
→ If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
338
All
INSTRUMENT CLUSTER
Symptom:
NO MESSAGES FROM SBEC
When Monitored and Set Condition:
NO MESSAGES FROM SBEC
When Monitored:
Set Condition:
With the ignition on.
No SBEC messages received for 20 seconds.
POSSIBLE CAUSES
INSTRUMENT CLUSTER
NO MESSAGES FROM SBEC
TEST
1
2
ACTION
Attempt to start the vehicle.
Does the vehicle start and continue to run?
APPLICABILITY
All
Yes
→ Go To
No
→ Refer to the appropriate category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
2
With the DRB, erase Instrument Cluster DTC’s.
Start the vehicle and continue to run for approximately 1 minute.
With the DRB, read Instrument Cluster DTC’s.
Did this DTC reset?
Yes
→ If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
339
All
INSTRUMENT CLUSTER
Symptom:
*ABS WARNING INDICATOR NOT OPERATING PROPERLY
POSSIBLE CAUSES
ANOTHER ABS DIAGNOSTIC TROUBLE CODE SET
INSTRUMENT CLUSTER
OTHER INSTRUMENT CLUSTER DTC’S
PERFORM INSTRUMENT CLUSTER SELF TEST
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
Note: The DRB must be able to communicate with the CAB prior to
performing this test.
With the DRB, read CAB DTC’s.
Are there any CAB DTC’s present?
All
2
3
4
Yes
→ Refer to the Brakes (CAB) category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
No
→ Go To
2
Turn the ignition on.
With the DRB, read Instrument Cluster DTC’s.
Are there any Instrument Cluster DTC’s present?
Yes
→ Refer to the Instrument Cluster category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
3
Turn the ignition off then on. This will start the bulb test.
Did ABS warning indicator illuminate for several seconds?
Yes
→ Go To
No
→ Replace the Instrument cluster.
Perform the Body Verification Test - Ver 1.
All
4
View repair options.
All
Repair
If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
340
INSTRUMENT CLUSTER
Symptom:
*AIRBAG WARNING INDICATOR NOT OPERATING PROPERLY
POSSIBLE CAUSES
AIRBAG TROUBLE CODES
INSTRUMENT CLUSTER
OTHER INSTRUMENT CLUSTER DTC’S
PERFORM INSTRUMENT CLUSTER SELF TEST
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
Note: The DRB must be able to communicate with the airbag module prior
to performing this test.
With the DRB, read airbag DTC’s.
Are there any airbag DTC’s present?
All
2
3
4
Yes
→ Refer to the Airbag category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
No
→ Go To
2
Turn the ignition on.
With the DRB, read Instrument Cluster DTC’s.
Are there any Instrument Cluster DTC’s present?
Yes
→ Refer to the Instrument Cluster category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
3
Turn the ignition off then on. This will start the bulb test.
Did the airbag warning indicator illuminate for 3 to 10 seconds?
Yes
→ Go To
No
→ Replace the Instrument cluster.
Perform the Body Verification Test - Ver 1.
All
4
View repair options.
All
Repair
If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
341
INSTRUMENT CLUSTER
Symptom:
*ALL GAUGES NOT OPERATING
POSSIBLE CAUSES
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
CHECK FUSES IN THE JUNCTION BLOCK
FUSED B(+) CIRCUIT OPEN
GROUND CIRCUIT OPEN (C1 CONN)
GROUND CIRCUIT OPEN (C2 CONN)
ATTEMPT TO COMMUNICATE WITH THE BCM
ATTEMPT TO COMMUNICATE WITH THE INSTRUMENT CLUSTER
INSTRUMENT CLUSTER
TEST
1
2
3
4
ACTION
Turn the ignition off.
Remove and Inspect Fuse 7 and Fuse 14 from the Junction Block.
Is either fuse open?
Yes
→ Refer to the Service Information (wiring diagrams) for the related
symptom(s) to diagnose a shorted circuit.
Perform the Body Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
All
2
Turn the ignition on.
With the DRB, enter 9Body9 then 9Body Computer9.
Was the DRB able to I/D or communicate with the BCM?
Yes
→ Go To
No
→ Refer to the Communication category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
All
3
Turn the ignition on.
With the DRB, enter 9Body9 then 9Electro/Mech Cluster (MIC)9.
Was the DRB able to I/D or communicate with the Instrument Cluster?
Yes
→ Go To
No
→ Refer to the Communication category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
All
4
Turn the ignition off.
Disconnect the Instrument Cluster 9C19 harness connector.
Measure the resistance between ground and the ground circuit.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the ground circuit for an open.
Perform the Body Verification Test - Ver 1.
5
342
All
INSTRUMENT CLUSTER
*ALL GAUGES NOT OPERATING —
Continued
TEST
ACTION
APPLICABILITY
5
Turn the ignition off.
Disconnect the Instrument Cluster 9C29 harness connector.
Turn the ignition on.
Measure the voltage of the Fused Ignition Switch Output circuit in the Instrument
Cluster 9C29 connector.
Is the voltage above 10.0 volts?
All
6
7
8
Yes
→ Go To
No
→ Repair the Fused Ignition Switch Output circuit for an open.
Perform the Body Verification Test - Ver 1.
6
Turn the ignition off.
Disconnect the Instrument Cluster 9C29 harness connector.
Measure the resistance between ground and the ground circuit.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the ground circuit for an open.
Perform the Body Verification Test - Ver 1.
All
7
Turn the ignition off.
Disconnect the Instrument Cluster 9C19 harness connector.
Measure the voltage of the Fused B+ circuit (cavity 1).
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the Fused B+ circuit for an open.
Perform the Body Verification Test - Ver 1.
All
8
If there are no possible causes remaining, view 9Repair9.
Repair
If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
343
All
INSTRUMENT CLUSTER
Symptom:
*BRAKE INDICATOR NOT OPERATING PROPERLY
POSSIBLE CAUSES
OPEN BRAKE PRESSURE SWITCH (LEVEL SWITCH)
OPEN GROUND CIRCUIT
BRAKE PRESSURE SWITCH (LEVEL SWITCH) SHORTED TO GROUND
CHECK THE BRAKE FLUID LEVEL
CHECK THE PARKING BRAKE LEVER
INSTRUMENT CLUSTER
INSTRUMENT CLUSTER
INSTRUMENT CLUSTER
MONITOR THE BRAKE WARNING INDICATOR WHILE CRANKING ENGINE
OPEN RED BRAKE WARNING INDICATOR DRIVER CIRCUIT
OPEN RED BRAKE WARNING INDICATOR DRIVER CIRCUIT
PARK BRAKE SWITCH OPEN
PARK BRAKE SWITCH SHORTED TO GROUND
RED BRAKE WARNING INDICATOR DRIVER CIRCUIT SHORTED TO GROUND
TEST
1
2
3
ACTION
Note: Make sure the parking brake lever is not engaged at this time.
Check the parking brake lever for any interference or binding linkage.
Is there a problem with the parking brake operation.
Yes
→ Refer to the service information for the related symptom(s)
regarding the parking brake lever.
Perform the Body Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
All
2
Are you in this test because the warning indicator did not light with an empty fluid
reservoir?
Yes
→ Go To
3
No
→ Go To
7
Turn the ignition off.
Disconnect the brake pressure switch (level switch) harness connector.
Turn the ignition on, wait 10 seconds.
Connect a jumper wire between the red brake warning indicator driver circuit and
the ground circuit.
Did the brake warning indicator illuminate with the jumper wire connected?
Yes
→ Replace the brake pressure switch (level switch).
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
344
All
All
INSTRUMENT CLUSTER
*BRAKE INDICATOR NOT OPERATING PROPERLY —
Continued
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the brake pressure switch (level switch) harness connector.
Turn the ignition on, wait 10 seconds.
Connect a jumper wire between the red brake warning indicator driver circuit and
chassis ground.
Did the brake warning indicator illuminate with the jumper wire connected?
All
5
6
Yes
→ Repair the ground circuit for an open.
Perform the Body Verification Test - Ver 1.
No
→ Go To
5
Turn the ignition off.
Disconnect the brake pressure switch (level switch) harness connector.
Disconnect the Instrument Cluster 9C29 harness connector.
Measure the resistance of the red brake warning indicator driver circuit between the
pressure switch connector and the Instrument Cluster 9C29 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the red brake warning indicator driver circuit for an open.
Perform the Body Verification Test - Ver 1.
All
6
View repair options.
All
Repair
If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
7
8
9
10
Turn the ignition on.
Is the brake warning indicator on after the bulb check?
Yes
→ Go To
8
No
→ Go To
13
Check the brake fluid level in the reservoir.
Is the reservoir full?
All
All
Yes
→ Go To
No
→ Adjust the brake fluid level as necessary.
Perform the Body Verification Test - Ver 1.
9
Disconnect the brake pressure switch (level switch) harness connector.
With the key still on, observe the red brake warning indicator.
Did the brake warning indicator turn off?
Yes
→ Replace the Brake Pressure Switch (Level Switch).
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
10
Disconnect the park brake switch harness connector.
With the key still on, observe the red brake warning indicator.
Did the brake warning indicator turn off?
Yes
→ Replace the Park Brake Switch.
Perform the Body Verification Test - Ver 1.
No
→ Go To
11
345
All
INSTRUMENT CLUSTER
*BRAKE INDICATOR NOT OPERATING PROPERLY —
Continued
TEST
ACTION
APPLICABILITY
11
Turn the ignition off.
Disconnect the Instrument Cluster 9C29 harness connector.
Disconnect the brake pressure switch (level switch) harness connector.
Disconnect the park brake switch harness connector.
Measure the resistance between ground and the red brake warning indicator driver
circuit.
Is the resistance below 10.0 ohms?
All
12
Yes
→ Repair the red brake warning indicator driver circuit for a short
to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
12
View repair options.
All
Repair
If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
13
14
15
16
Turn the ignition on, wait 10 seconds.
Engage the parking brake lever.
Did the brake warning indicator turn on with the parking brake lever engaged?
Yes
→ Go To
14
No
→ Go To
15
Release the parking brake lever.
Crank the engine while observing the brake warning indicator.
Did the brake warning indicator turn on while the engine was cranked?
Yes
→ Test Complete.
No
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
Turn the ignition off.
Disconnect the parking brake switch harness connector.
Turn the ignition on, wait 10 seconds.
Connect a jumper wire between the red brake warning indicator driver circuit and
ground.
Is the brake warning indicator on?
Yes
→ Replace the park brake switch.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
All
All
16
Turn the ignition off.
Disconnect the parking brake switch harness connector.
Disconnect the Instrument Cluster 9C29 harness connector.
Measure the resistance of the red brake warning indicator driver circuit between the
park brake switch connector and the Instrument Cluster 9C29 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the red brake warning indicator driver circuit for an open.
Perform the Body Verification Test - Ver 1.
17
346
All
INSTRUMENT CLUSTER
*BRAKE INDICATOR NOT OPERATING PROPERLY —
TEST
17
Continued
ACTION
View repair options.
APPLICABILITY
All
Repair
If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
347
INSTRUMENT CLUSTER
Symptom:
*CHARGING INDICATOR NOT OPERATING PROPERLY
POSSIBLE CAUSES
CHECK THE CHARGING SYSTEM OPERATION
ENGINE TROUBLE CODES
INSTRUMENT CLUSTER
PERFORM INSTRUMENT CLUSTER SELF TEST
TEST
1
2
3
4
ACTION
Turn the ignition on.
With the DRB, read engine DTC’s.
Are there any PCM DTC’s present?
APPLICABILITY
All
Yes
→ Refer to the Driveability category for the related symptom(s)
involving the charging system.
Perform the Body Verification Test - Ver 1.
No
→ Go To
2
Turn the ignition off then on. This will start the bulb test.
Did the charging indicator illuminate for 3 to 10 seconds?
Yes
→ Go To
No
→ Replace the Instrument cluster.
Perform the Body Verification Test - Ver 1.
All
3
Check the charging system operation. Follow the service information procedure.
Is the charging system operating properly?
Yes
→ Go To
No
→ Refer to service information for the related symptom(s) regarding
the charging system.
Perform the Body Verification Test - Ver 1.
All
4
View repair options.
All
Repair
If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
348
INSTRUMENT CLUSTER
Symptom:
*CHECK ENGINE INDICATOR NOT OPERATING PROPERLY
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE PCM
ENGINE TROUBLE CODES
INSTRUMENT CLUSTER
PERFORM INSTRUMENT CLUSTER SELF TEST
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, enter 9Body9, 9Body Computer9, 9System Test9 then 9PCM Monitor9.
Is the PCM active on the bus?
All
2
3
4
Yes
→ Go To
No
→ Refer to the Communications category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
2
Turn the ignition on.
With the DRB, read engine DTC’s.
Are there any PCM DTC’s present?
All
Yes
→ Refer to the Driveability category for the related symptom(s) .
Perform the Body Verification Test - Ver 1.
No
→ Go To
3
Turn the ignition off then on. This will start the bulb test.
Did the check engine (MIL) indicator illuminate for 3 to 10 seconds?
Yes
→ Go To
No
→ Replace the Instrument cluster.
Perform the Body Verification Test - Ver 1.
All
4
View repair options.
All
Repair
If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
349
INSTRUMENT CLUSTER
Symptom:
*CLUSTER AND PANEL ILLUMINATION PROBLEMS
POSSIBLE CAUSES
INSTRUMENT CLUSTER
DISCONNECT THE ASH RECEIVER LAMP HARNESS CONNECTOR
DISCONNECT THE ASH RECEIVER LAMP HARNESS CONNECTOR
DISCONNECT THE ATC MODULE OR THE MTC MODULE HARNESS CONNECTORS
DISCONNECT THE ATC MODULE OR THE MTC MODULE HARNESS CONNECTORS
DISCONNECT THE CLOCK HARNESS CONNECTOR (IF EQUIPPED)
DISCONNECT THE CLOCK HARNESS CONNECTOR (IF EQUIPPED)
DISCONNECT THE HEADLAMP SWITCH HARNESS CONNECTOR
DISCONNECT THE PRND3L ILLUMINATION HARNESS CONNECTOR
DISCONNECT THE PRND3L ILLUMINATION HARNESS CONNECTOR
DISCONNECT THE RADIO HARNESS CONNECTOR
DISCONNECT THE RADIO HARNESS CONNECTOR
DISCONNECT THE TRACTION CONTROL SWITCH (IF EQUIPPED)
DISCONNECT THE TRACTION CONTROL SWITCH (IF EQUIPPED)
HEADLAMP SWITCH SHORTED TO VOLTAGE
PANEL LAMP DRIVER CIRCUIT SHORTED TO GROUND
PANEL LAMP DRIVER CIRCUIT SHORTED TO VOLTAGE
OBSERVE THE DIMMING LEVEL VOLTAGE
ATTEMPT TO COMMUNICATE WITH THE INSTRUMENT CLUSTER
CHECK FOR DTCS IN THE INSTRUMENT CLUSTER
CHECK THE PANEL LAMP DRIVER CIRCUIT FOR A SHORT TO GROUND
TEST
1
ACTION
Turn the ignition on.
With the DRB, enter 9Body9 then 9Electro/Mech Cluster (MIC)9.
Was the DRB able to I/D or communicate with the Instrument Cluster?
Yes
→ Go To
No
→ Refer to the Communication category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
2
350
APPLICABILITY
All
INSTRUMENT CLUSTER
*CLUSTER AND PANEL ILLUMINATION PROBLEMS —
Continued
TEST
ACTION
APPLICABILITY
2
Turn the ignition on.
Note: Check the Instrument Cluster (MIC) for any DTCs.
With the DRB, enter 9Body Computer9 then 9Sensors9 and observe the dimming level
voltage.
Rotate the dimmer switch to the low position, then to the high position and observe
the dimming level voltage
Does the dimming level voltage change between approximately 0.2 and 3.0 volts?
All
3
4
5
6
Yes
→ Go To
No
→ Refer to symptom list for problems related to the Dimming Level
Switch Failure DTC.
Perform the Body Verification Test - Ver 1.
3
Turn the park lamps on.
Rotate the dimmer switch to the low position, then to the high position and observe
the panel lamps.
Do the panel lamps stay at full intensity with the dimmer switch in any position?
Yes
→ Go To
4
No
→ Go To
12
Turn the park lamps on.
Disconnect the Ash Receiver Lamp harness connector.
Rotate the dimmer switch to the low position, then to the high position and observe
the panel lamps.
Did the panel lamps function properly with the dimmer switch?
Yes
→ Repair or replace the Ash Receiver for a short to voltage.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
All
5
Turn the park lamps on.
Disconnect the Clock harness connector (if equipped).
Rotate the dimmer switch to the low position, then to the high position and observe
the panel lamps.
Did the panel lamps function properly with the dimmer switch?
Yes
→ Repair or replace the Clock for a short to voltage.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
6
Turn the park lamps on.
Disconnect the PRND3L Illumination harness connector.
Rotate the dimmer switch to the low position, then to the high position and observe
the panel lamps.
Did the panel lamps function properly with the dimmer switch?
Yes
→ Repair or replace the PRND3L for a short to voltage.
Perform the Body Verification Test - Ver 1.
No
→ Go To
7
351
All
INSTRUMENT CLUSTER
*CLUSTER AND PANEL ILLUMINATION PROBLEMS —
Continued
TEST
ACTION
APPLICABILITY
7
Turn the park lamps on.
Disconnect the Radio 9C29 harness connector.
Rotate the dimmer switch to the low position, then to the high position and observe
the panel lamps.
Did the panel lamps function properly with the dimmer switch?
All
8
9
10
11
Yes
→ Repair or replace the Radio for a short to voltage.
Perform the Body Verification Test - Ver 1.
No
→ Go To
8
Turn the park lamps on.
Disconnect the Traction Control Switch harness connector (if equipped).
Rotate the dimmer switch to the low position, then to the high position and observe
the panel lamps.
Did the panel lamps function properly with the dimmer switch?
Yes
→ Repair or replace the traction control switch for a short to voltage.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
9
Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Turn the ignition on.
Measure the voltage of the Panel Lamp Driver circuit.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Replace the Headlamp Switch.
Perform the Body Verification Test - Ver 1.
All
10
Turn the park lamps on.
Disconnect the Automatic Temperature Control Module or the Manual Temperature
Control Module harness connectors.
Rotate the dimmer switch to the low position, then to the high position and observe
the panel lamps.
Did the panel lamps function properly with the dimmer switch?
Yes
→ Repair or replace the Temperature Control Module (Automatic or
Manual depending what the vehicle is equipped with) for a short
to voltage.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
11
Turn the ignition off.
Disconnect the Instrument Cluster 9C19 harness connector.
Turn the ignition on.
Measure the voltage of the Panel Lamp Driver circuit in the Instrument Cluster 9C19
connector.
Is the voltage above 10.0 volts?
Yes
→ Repair the Panel Lamp Driver circuit for a short to voltage.
Perform the Body Verification Test - Ver 1.
No
→ If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
352
All
INSTRUMENT CLUSTER
*CLUSTER AND PANEL ILLUMINATION PROBLEMS —
TEST
12
13
14
15
16
17
Continued
ACTION
Turn the ignition on.
With the DRB, read DTC’s in the Instrument Cluster.
Is the panel lamps driver output circuit shorted DTC set?
Yes
→ Go To
No
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
13
Turn the ignition off.
Disconnect the Instrument Cluster 9C19 harness connector.
Measure the resistance between ground and the Panel Lamps Driver circuit.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
All
14
Turn the ignition off.
Disconnect the Ash Receiver Lamp harness connector.
Measure the resistance between ground and the Panel Lamps Driver circuit in the
Instrument Cluster 9C19 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair or replace the Ash Receiver Lamp for a short to ground.
Perform the Body Verification Test - Ver 1.
All
15
Turn the ignition off.
Disconnect the Clock harness connector (if equipped).
Measure the resistance between ground and the Panel Lamps Driver circuit in the
Instrument Cluster 9C19 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair or replace the Clock for a short to ground.
Perform the Body Verification Test - Ver 1.
All
16
Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Measure the resistance between ground and the Panel Lamps Driver circuit in the
Instrument Cluster 9C19 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair or replace the Headlamp Switch for a short to ground.
Perform the Body Verification Test - Ver 1.
All
17
Turn the ignition off.
Disconnect the PRND3L Illumination harness connector.
Measure the resistance between ground and the Panel Lamps Driver circuit in the
Instrument Cluster 9C19 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair or replace the PRND3L for a short to ground.
Perform the Body Verification Test - Ver 1.
18
353
All
INSTRUMENT CLUSTER
*CLUSTER AND PANEL ILLUMINATION PROBLEMS —
Continued
TEST
ACTION
APPLICABILITY
18
Turn the ignition off.
Disconnect the Radio 9C29 harness connector.
Measure the resistance between ground and the Panel Lamps Driver circuit in the
Instrument Cluster 9C19 connector.
Is the resistance below 5.0 ohms?
All
19
20
21
Yes
→ Go To
No
→ Repair or replace the Radio for a short to ground.
Perform the Body Verification Test - Ver 1.
19
Turn the ignition off.
Disconnect the Traction Control Switch harness connector (if equipped).
Measure the resistance between ground and the Panel Lamps Driver circuit in the
Instrument Cluster 9C19 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair or replace the traction control switch for a short to ground.
Perform the Body Verification Test - Ver 1.
All
20
Turn the ignition off.
Disconnect the Automatic Temperature Control Module or the Manual Temperature
Control Module harness connectors.
Measure the resistance between ground and the Panel Lamps Driver circuit in the
Instrument Cluster 9C19 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair or replace the Temperature Control Module (Automatic or
Manual depending what the vehicle is equipped with) for a short
to ground.
Perform the Body Verification Test - Ver 1.
All
21
View repair options.
All
Repair
If there are no possible causes remaining, repair the Panel Lamps
Driver circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
354
INSTRUMENT CLUSTER
Symptom:
*CRUISE ON INDICATOR NOT OPERATING PROPERLY
POSSIBLE CAUSES
INSTRUMENT CLUSTER
ATTEMPT TO COMMUNICATE WITH THE PCM
CHECK THE OPERATION OF THE SPEED CONTROL SYSTEM
DEFECTIVE BULB OR SOCKET
ENGINE TROUBLE CODES
INSTRUMENT CLUSTER
TEST
1
2
3
4
ACTION
Turn the ignition off then on. This will start the bulb test.
Did the cruise on indicator illuminate for 3 to 10 seconds?
Yes
→ Go To
2
No
→ Go To
5
Turn the ignition on.
With the DRB, read engine DTC’s.
Are there any PCM DTC’s present?
APPLICABILITY
All
All
Yes
→ Refer to the Driveability category for the related symptom(s)
involving the speed control system.
Perform the Body Verification Test - Ver 1.
No
→ Go To
3
Drive vehicle, turn the speed control system on.
Does the speed control system operate properly?
Yes
→ Go To
No
→ Refer to the Driveability category for the related symptom(s)
involving the speed control system.
Perform the Body Verification Test - Ver 1.
All
4
View repair options.
All
Repair
If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
5
Turn the ignition on.
With the DRB, enter 9Body9, 9Body Computer9, 9System Test9 then 9PCM Monitor9.
Is the PCM active on the bus?
Yes
→ Go To
No
→ Refer to the Communications category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
6
355
All
INSTRUMENT CLUSTER
*CRUISE ON INDICATOR NOT OPERATING PROPERLY —
TEST
6
ACTION
Turn the ignition off.
Remove and inspect the cruise on bulb and socket.
Is there a problem with the bulb or socket?
Yes
→ Repair or replace the defective bulb or socket as needed.
Perform the Body Verification Test - Ver 1.
No
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
356
Continued
APPLICABILITY
All
INSTRUMENT CLUSTER
Symptom:
*DECKLID AJAR INDICATOR NOT OPERATING PROPERLY
POSSIBLE CAUSES
DECKLID AJAR SWITCH SENSE CIRCUIT SHORTED TO GROUND
DECKLID RELEASE SOLENOID/AJAR SWITCH SHORTED TO GROUND
INSTRUMENT CLUSTER
INSTRUMENT CLUSTER
OPEN DECKLID AJAR SWITCH SENSE CIRCUIT
OPEN DECKLID AND OBSERVE THE DECKLID AJAR INDICATOR
OPEN DECKLID RELEASE SOLENOID/AJAR SWITCH
OPEN FUSED B+ CIRCUIT
TEST
1
2
3
4
ACTION
Ensure the decklid is properly aligned and fully closed.
Turn the ignition on.
Is the decklid ajar indicator illuminated?
Yes
→ Go To
2
No
→ Go To
5
Note: Only perform this test if the decklid ajar indicator is on at all times.
Turn the ignition off.
Disconnect the decklid release solenoid/ajar switch harness connector.
Observe the decklid ajar indicator.
Is the decklid ajar indicator illuminated?
Yes
→ Go To
No
→ Replace the decklid release solenoid/ajar switch.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
All
3
Note: Only perform this test if the decklid ajar indicator is on at all times.
Turn the ignition off.
Disconnect the decklid release solenoid/ajar switch harness connector.
Disconnect the Instrument Cluster 9C29 harness connector.
Measure the resistance between ground and the decklid ajar switch sense circuit.
Is the resistance below 5.0 ohms?
Yes
→ Repair the decklid ajar switch sense circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
4
View repair options.
All
Repair
If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
357
INSTRUMENT CLUSTER
*DECKLID AJAR INDICATOR NOT OPERATING PROPERLY —
TEST
5
6
7
8
9
ACTION
Open the decklid and observe the decklid ajar indicator.
Is the decklid ajar indicator illuminated?
Yes
→ The decklid ajar indicator is operating properly at this time,
check for a intermittent wiring condition.
Perform the Body Verification Test - Ver 1.
No
→ Go To
Continued
APPLICABILITY
All
6
Turn the ignition off.
Disconnect the decklid release solenoid/ajar switch harness connector.
Connect a jumper wire between the decklid ajar switch sense circuit and ground.
With the jumper wire connected to ground, monitor the decklid ajar indicator.
Is the decklid ajar indicator illuminated?
Yes
→ Replace the decklid release solenoid/ajar switch.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
7
Turn the ignition off.
Disconnect the decklid release solenoid/ajar switch harness connector.
Disconnect the Instrument Cluster 9C29 harness connector.
Measure the resistance of the decklid ajar switch sense circuit between the decklid
release solenoid/ajar switch connector and the Instrument Cluster 9C29 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the decklid ajar switch sense circuit for an open.
Perform the Body Verification Test - Ver 1.
All
8
Turn the ignition off.
Disconnect the Instrument Cluster 9C19 harness connector.
Measure the voltage of the Fused B+ circuit (cavity 3).
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the Fused B+ circuit for an open.
Perform the Body Verification Test - Ver 1.
All
9
View repair options.
All
Repair
If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
358
INSTRUMENT CLUSTER
Symptom:
*DOOR AJAR INDICATOR NOT OPERATING PROPERLY
POSSIBLE CAUSES
INSTRUMENT CLUSTER
CHECK THE DOOR AJAR STATES
INSTRUMENT CLUSTER
PERFORM INSTRUMENT CLUSTER SELF TEST
CHECK THE DOOR AJAR STATES
TEST
1
2
3
4
5
ACTION
Close all doors.
Turn the ignition off then on. This will start the bulb test.
Did the door ajar indicator illuminate for 3 to 10 seconds?
Yes
→ Go To
No
→ Replace the Instrument cluster.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
With all the doors closed, monitor the door ajar indicator.
Does the door ajar indicator stay on with all the doors closed?
Yes
→ Go To
3
No
→ Go To
4
Close all doors.
With the DRB, enter 9Body9, 9Body Computer9 then 9Inputs/Outputs9 and read both
door ajar states.
Does the DRB display both door ajar states 9Open9?
Yes
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
No
→ Refer to the Interior Lighting category for the related symptom(s)
regarding the door ajar switches.
Perform the Body Verification Test - Ver 1.
Open both driver and passenger doors.
With the DRB, enter 9Body9, 9Body Computer9 then 9Inputs/Outputs9 and read both
door ajar states.
Does the DRB display both door ajar states 9Closed9?
Yes
→ Go To
No
→ Refer to the Interior Lighting category for the related symptom(s)
regarding the door ajar switches.
Perform the Body Verification Test - Ver 1.
All
All
All
5
With the doors open, is the door ajar indicator on?
Yes
→ Test Complete.
No
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
359
All
INSTRUMENT CLUSTER
Symptom:
*ENGINE COOLANT TEMPERATURE INDICATOR NOT OPERATING PROPERLY
POSSIBLE CAUSES
CHECK THE ENGINE COOLANT TEMPERATURE GAUGE OPERATION
PERFORM INSTRUMENT CLUSTER SELF TEST
TEST
1
2
ACTION
Start the engine and allow the engine to reach operating temperature.
Does the temperature gauge operate properly?
Yes
→ Go To
No
→ Refer to symptom list for problems related to the engine coolant
temperature gauge.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
Turn the ignition off then on. This will start the bulb test.
Did the engine coolant temperature indicator illuminate for 3 to 10 seconds then turn
off?
Yes
→ Test Complete.
No
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
360
All
INSTRUMENT CLUSTER
Symptom:
*FUEL GAUGE NOT OPERATING PROPERLY
POSSIBLE CAUSES
BODY COTROL MODULE
INSTRUMENT CLUSTER
INSTRUMENT CLUSTER
VISUAL CONDITION NOT GOOD
FUEL GAUGE DISPLAYS EMPTY
INSPECT THE FUEL PUMP MODULE AND THE FUEL TANK
OBSERVE THE FUEL GAUGE
DETERMINE IF FULL GAUGE IS INACCURATE
FUEL LEVEL SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
INSTRUMENT CLUSTER SELF TEST
CHECK FOR ANY BODY CONTROL MODULE DTCS
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
During the self test all gauges should move from their lowest calibration point to
their highest calibration point then back down to its lowest.
Calibration points for the Fuel Gauge: 9E9, 1/4, 1/2, 9F9, 1/2, 1/4, 9E9.
While holding the 9trip/reset9 button down on the instrument cluster, turn the
ignition forward one position (Ulock/Off position) to start the MIC self test, release
the button.
Did the Fuel Gauge pass the self test?
All
2
Yes
→ Go To
No
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
2
Turn the ignition on.
With the DRB, enter 9Body9, 9Body Computer9 then read DTC’s.
Is the fuel level sending unit failure DTC set?
Yes
→ Refer to symptom list for problems related to fuel level sending
unit failure DTC.
Perform the Body Verification Test - Ver 1.
No
→ Go To
3
361
All
INSTRUMENT CLUSTER
*FUEL GAUGE NOT OPERATING PROPERLY —
TEST
3
Continued
ACTION
Note: Make sure the fuel tank is not empty before proceeding.
Turn the ignition on.
Observe the fuel gauge.
What does the fuel gauge display?
APPLICABILITY
All
Empty at all times
Go To 4
Between empty and full
Go To 5
Full at all times
Go To 7
4
5
6
Turn the ignition off.
Gain access to the body harness connector C308 by removing the rear seat cushion.
Disconnect the C308 harness connector.
Turn the ignition on.
Connect a jumper wire between ground and fuel level sensor signal circuit.
With the jumper wire connected to ground, observe the fuel gauge.
Does the fuel gauge display FULL?
Yes
→ Remove the fuel pump module from the tank and inspect for a
stuck float arm, replace the fuel pump module.
Perform the Body Verification Test - Ver 1.
No
→ If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
Turn the ignition off.
Disconnect the BCM 9C49 harness connector.
Note: To perform this test, add or remove 5 gallons of fuel and take a
measurement, then repeat and take another measurement.
Measure the resistance between ground and the Fuel Level Sensor Signal circuit.
Match the resistance to these specifications (float arm height in mm): 151.4mm
(sensor full stop) - 60+/-10 ohms, 141.0mm (stop on gauge) - 130+/-15 ohms, 105.8mm
(3/4 position) - 340+/-30 ohms.
Continued: match the resistance to these specifications: 74.5mm (1/2 position) 550+/-30 ohms, 43.0mm (1/4 position) - 760+/-30 ohms, 11.1mm (empty on gauge) 920+/-30 ohms, 1.4mm (sensor empty stop) - 1050+/-10 ohms.
Does the resistance of the fuel pump module match the resistance specifications both
times?
Yes
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
All
6
Turn the ignition off.
Remove the fuel tank from the vehicle.
Remove the fuel pump module from the fuel tank.
Inspect the fuel pump module for a bent or sticking arm and the fuel tank for any
foreign materials.
Is the fuel tank and fuel pump module visual condition good?
Yes
→ Replace the Fuel Pump Module.
Perform the Body Verification Test - Ver 1.
No
→ Repair or replace as necessary.
Perform the Body Verification Test - Ver 1.
362
All
INSTRUMENT CLUSTER
*FUEL GAUGE NOT OPERATING PROPERLY —
Continued
TEST
ACTION
APPLICABILITY
7
Turn the ignition off.
Gain access to the body harness connector C308 by removing the rear seat cushion.
Disconnect the C308 harness connector.
Turn the ignition on.
With the DRB, enter 9Body9, 9Body Computer9 then 9Sensors9 and observe the fuel
level voltage.
Is the voltage above 9.0 volts?
All
8
9
Yes
→ Go To
8
No
→ Go To
9
Turn the ignition on.
With the C308 harness connector disconnected observe the fuel gauge.
Did the fuel gauge drop to empty?
Yes
→ Check the fuel pump module jumper harness between the C308
and the fuel pump module, replace the fuel pump module.
Perform the Body Verification Test - Ver 1.
No
→ If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
Turn the ignition off.
Disconnect the BCM 9C49 harness connector.
Measure the resistance between ground and the Fuel Level Sensor Signal circuit.
Is the resistance below 5.0 ohms?
Yes
→ Repair the Fuel Level Sensor Signal circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
363
All
All
INSTRUMENT CLUSTER
Symptom:
*LOW FUEL INDICATOR NOT OPERATING PROPERLY
POSSIBLE CAUSES
CHECK THE FUEL GAUGE OPERATION
PERFORM INSTRUMENT CLUSTER SELF TEST
TEST
1
2
ACTION
Start the engine and observe the fuel gauge.
Does the fuel gauge operate properly?
APPLICABILITY
All
Yes
→ Go To
No
→ Refer to symptom list for problems related to the fuel gauge.
Perform the Body Verification Test - Ver 1.
2
Turn the ignition off then on. This will start the bulb test.
Did the low fuel indicator illuminate for 3 to 10 seconds then turn off?
Yes
→ Test Complete.
No
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
364
All
INSTRUMENT CLUSTER
Symptom:
*LOW WASHER FLUID INDICATOR NOT OPERATING PROPERLY
POSSIBLE CAUSES
CHECK THE WASHER FLUID RESERVOIR
INSTRUMENT CLUSTER
INSTRUMENT CLUSTER
OPEN GROUND CIRCUIT
OPEN WASHER FLUID SWITCH SENSE CIRCUIT
PERFORM INSTRUMENT CLUSTER SELF TEST
WASHER FLUID LEVEL SENSOR
WASHER FLUID LEVEL SENSOR
WASHER FLUID SWITCH SENSE CIRCUIT SHORTED TO GROUND
TEST
1
2
3
4
ACTION
Turn the ignition off.
Check the level of the washer fluid reservoir.
Is the washer fluid reservoir full?
APPLICABILITY
All
Yes
→ Go To
No
→ Add washer fluid as necessary.
Perform the Body Verification Test - Ver 1.
2
Did the low washer fluid indicator fail to turn on when the reservoir was low?
Yes
→ Go To
3
No
→ Go To
8
Turn the ignition off then on. This will start the bulb test.
Did the low washer indicator illuminate for 3 to 10 seconds?
Yes
→ Go To
No
→ Replace the Instrument cluster.
Perform the Body Verification Test - Ver 1.
All
All
4
Turn the ignition off.
Disconnect the washer fluid level sensor harness connector.
Measure the resistance between ground and the ground circuit.
Is the resistance below 10.0 ohms?
Yes
→ Go To
No
→ Repair the ground circuit for an open.
Perform the Body Verification Test - Ver 1.
5
365
All
INSTRUMENT CLUSTER
*LOW WASHER FLUID INDICATOR NOT OPERATING PROPERLY —
Continued
TEST
ACTION
APPLICABILITY
5
Turn the ignition off.
Disconnect the washer fluid level sensor harness connector.
Disconnect the Instrument Cluster 9C29 harness connector.
Measure the resistance of the washer fluid switch sense circuit between the washer
fluid level sensor connector and the Instrument Cluster 9C29 connector.
Is the resistance below 5.0 ohms?
All
6
7
Yes
→ Go To
No
→ Repair the washer fluid switch sense circuit for an open.
Perform the Body Verification Test - Ver 1.
6
Turn the ignition off.
Disconnect the washer fluid level sensor harness connector.
Turn the ignition on.
Connect a jumper wire between the washer fluid switch sense circuit and the ground
circuit.
With the DRB, enter 9Body9, 9Electro/Mech Cluster (MIC)9 then 9Inputs/Outputs9 and
observe the washer fluid switch status.
Does the DRB display 9Wash Fluid: Closed9?
Yes
→ Replace the washer fluid level sensor.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
7
View repair options.
All
Repair
If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
8
9
Note: Perform this test if the low washer fluid indicator is on all the time.
Turn the ignition off.
Disconnect the washer fluid level sensor harness connector.
Turn the ignition on and wait one minute.
Monitor the low washer fluid indicator.
Did the low washer fluid indicator turn off.
Yes
→ Replace the washer fluid level sensor.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
9
Note: Perform this test if the low washer fluid indicator is on all the time.
Turn the ignition off.
Disconnect the washer fluid level sensor harness connector.
Disconnect the Instrument Cluster 9C29 harness connector.
Measure the resistance between ground and the washer fluid switch sense circuit.
Is the resistance below 5.0 ohms?
Yes
→ Repair the washer fluid switch sense circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
10
366
All
INSTRUMENT CLUSTER
*LOW WASHER FLUID INDICATOR NOT OPERATING PROPERLY —
Continued
TEST
10
ACTION
View repair options.
APPLICABILITY
All
Repair
If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
367
INSTRUMENT CLUSTER
Symptom:
*ODOMETER NOT OPERATING PROPERLY
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE INSTRUMENT CLUSTER
ATTEMPT TO COMMUNICATE WITH THE TCM
OBSERVE THE INSTRUMENT CLUSTER
TEST
1
2
3
ACTION
Turn the ignition on.
With the DRB, enter 9Body9 then 9Electro/Mech Cluster (MIC)9.
Was the DRB able to I/D or communicate with the Instrument Cluster?
Yes
→ Go To
No
→ Refer to the Communication category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
Turn the ignition on.
With the DRB, enter 9Transmission9.
Was the DRB able to I/D or communicate with the TCM?
Yes
→ Go To
No
→ Refer to the Communication category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
All
3
Turn the ignition off.
While observing the odometer turn the ignition to the run position.
Did all odometer segments illuminated?
Yes
→ Test Complete.
No
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
368
All
INSTRUMENT CLUSTER
Symptom:
*OIL PRESSURE WARNING INDICATOR NOT OPERATING PROPERLY
POSSIBLE CAUSES
INSTRUMENT CLUSTER
INSTRUMENT CLUSTER
LOW ENGINE OIL PRESSURE LESS THAN 4 PSI (COLD)
LOW ENGINE OIL PRESSURE LESS THAN 4 PSI (WARM)
OIL PRESSURE SWITCH
OIL PRESSURE SWITCH SENSE CIRCUIT SHORTED TO GROUND
OPEN OIL PRESSURE SWITCH
OPEN OIL PRESSURE SWITCH SENSE CIRCUIT
TEST
ACTION
APPLICABILITY
1
Note: Before beginning this test, make sure the oil level is within specifications.
Turn the ignition on.
Observe the oil pressure warning indicator.
Is the oil pressure warning indicator on?
All
2
3
Yes
→ Go To
2
No
→ Go To
7
Turn the ignition off.
Disconnect the oil pressure switch harness connector.
Turn the ignition on.
Observe the oil pressure warning indicator.
Is the oil pressure warning indicator off?
Yes
→ Go To
3
No
→ Go To
6
Turn the ignition off.
Remove the oil pressure switch.
Install a mechanical pressure gauge where the oil pressure switch was.
Start and idle the engine.
Read the oil pressure gauge.
Is the gauge reading 4.0 psi or greater at idle?
Yes
→ Go To
No
→ Refer to the service information for the related symptom(s)
regarding low engine oil pressure.
Perform the Body Verification Test - Ver 1.
4
369
All
All
INSTRUMENT CLUSTER
*OIL PRESSURE WARNING INDICATOR NOT OPERATING PROPERLY
— Continued
TEST
4
5
ACTION
Turn the ignition off.
Remove the oil pressure switch.
Install a mechanical pressure gauge where the oil pressure switch was.
Start and idle the engine.
Allow the engine to reach normal operating temperature.
Read the oil pressure gauge.
Is the gauge reading 4.0 psi or greater at idle?
Yes
→ Go To
No
→ Refer to the service information for the related symptom(s)
regarding low engine oil pressure.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
5
View repair options.
All
Repair
If there are no possible causes remaining, replace the oil pressure
switch.
Perform the Body Verification Test - Ver 1.
6
7
8
Turn the ignition off.
Disconnect the oil pressure switch harness connector.
Disconnect the Instrument Cluster 9C29 harness connector.
Measure the resistance between ground and the oil pressure switch sense circuit.
Is the resistance below 5.0 ohms?
Yes
→ Repair the oil pressure switch sense circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
Turn the ignition off.
Disconnect the oil pressure switch harness connector.
Connect a jumper wire between ground and the oil pressure switch sense circuit.
Turn the ignition on.
Is the oil pressure warning indicator on?
Yes
→ Replace the oil pressure switch.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
All
8
Turn the ignition off.
Disconnect the oil pressure switch harness connector.
Disconnect the Instrument Cluster 9C29 harness connector.
Measure the resistance of the oil pressure switch sense circuit between the oil
pressure switch connector and the Instrument Cluster 9C29 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the oil pressure switch sense circuit for an open.
Perform the Body Verification Test - Ver 1.
9
370
All
INSTRUMENT CLUSTER
*OIL PRESSURE WARNING INDICATOR NOT OPERATING PROPERLY
— Continued
TEST
9
ACTION
View repair options.
APPLICABILITY
All
Repair
If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
371
INSTRUMENT CLUSTER
Symptom:
*PRND3L INDICATOR MALFUNCTIONS
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE INSTRUMENT CLUSTER
INSTRUMENT CLUSTER
MONITOR THE PRND3L INDICATORS WHILE SHIFTING GEARS
OBSERVE THE PRND3L LAMPS WITH THE IGNITION ON
TEST
1
2
3
4
ACTION
Turn the ignition on.
With the DRB, enter 9Body9 then 9Electro/Mech Cluster (MIC)9.
Was the DRB able to I/D or communicate with the Instrument Cluster?
Yes
→ Go To
No
→ Refer to the Communication category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
Observe the PRND3L lamps while cycling the ignition from off to on.
Note: This should turn on all PRND3L indicators at the same time.
Did all the PRND3L indicators illuminate?
Yes
→ Go To
No
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
All
3
Turn the ignition on.
With the DRB, enter 9Transmission9, 9Monitor Display9, 9Shift Lever9 then 9SLP9 and
monitor the shift lever status.
Note: Engage the parking brake.
Move the gear shift lever through all the different positions.
Does the SLP reading match the state of the transmission gear?
Yes
→ Go To
No
→ Refer to symptom list for problems related to the Transaxle.
Perform the Body Verification Test - Ver 1.
All
4
View repair options.
All
Repair
Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
372
INSTRUMENT CLUSTER
Symptom:
*SEATBELT INDICATOR NOT OPERATING PROPERLY
POSSIBLE CAUSES
BODY CONTROL MODULE (SEATBELT SWITCH SENSE CIRCUIT SHORTED TO GROUND)
CHECK THE SEATBELT SWITCH STATUS
PERFORM INSTRUMENT CLUSTER SELF TEST
SEATBELT SWITCH SENSE CIRCUIT SHORTED TO GROUND
SEATBELT SWITCH SHORTED TO GROUND
WIRING HARNESS INTERMITTENT DEFECT
BODY CONTROL MODULE (OPEN SEATBELT SWITCH SENSE CIRCUIT)
CHECK THE SEATBELT SWITCH STATUS
OPEN GROUND CIRCUIT
OPEN SEATBELT SWITCH
SEATBELT SWITCH SENSE CIRCUIT OPEN
TEST
1
2
3
4
ACTION
Turn the ignition off then on. This will start the bulb test.
Is the seatbelt indicator illuminated?
Yes
→ Go To
No
→ Replace the Instrument cluster.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
Turn the ignition on.
Buckle the driver’s seatbelt and monitor the seatbelt indicator.
Did the seatbelt indicator turn off?
Yes
→ Go To
3
No
→ Go To
10
Turn the ignition on and wait 10 seconds.
Unbuckle the seatbelt and observe the seatbelt indicator.
Did the seatbelt indicator turn on?
Yes
→ Go To
4
No
→ Go To
5
Turn the ignition off.
Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken wires.
Note: Visually inspect the related wire harness connectors. Look for broken,
bent, pushed out, or corroded terminals.
Were any problems found?
Yes
→ The seatbelt indicator is operational. Check wiring harness/
connectors as necessary.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
373
All
All
All
INSTRUMENT CLUSTER
*SEATBELT INDICATOR NOT OPERATING PROPERLY —
Continued
TEST
ACTION
APPLICABILITY
5
Unbuckle the driver’s seatbelt.
With the DRB, enter 9Body Computer9 then 9Inputs/Outputs9 and observe the
seatbelt switch state.
Does the DRB display 9seatbelt switch: Closed9?
All
6
7
8
9
Yes
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
No
→ Go To
6
Turn the ignition off.
Disconnect the seatbelt switch harness connector.
Measure the resistance between ground and the ground circuit.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the ground circuit for an open.
Perform the Body Verification Test - Ver 1.
All
7
Turn the ignition off.
Disconnect the seatbelt switch harness connector.
Connect a jumper wire between the seatbelt switch sense circuit and the ground
circuit.
With the DRB, enter 9Body Computer9 then 9Inputs/Outputs9 and observe the
seatbelt switch state.
Does the DRB display 9seatbelt switch: Closed9?
Yes
→ Replace the seatbelt switch.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
8
Turn the ignition off.
Disconnect the seatbelt switch harness connector.
Disconnect the BCM 9C49 harness connector.
Measure the resistance of the seatbelt switch sense circuit between the seatbelt
switch connector and the BCM 9C49 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the seatbelt switch sense circuit for an open.
Perform the Body Verification Test - Ver 1.
All
9
View repair options.
All
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
10
Buckle the driver’s seatbelt.
With the DRB, enter 9Body Computer9 then 9Inputs/Outputs9 and observe the
seatbelt switch state.
Does the DRB display 9seatbelt switch: Open9?
Yes
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
No
→ Go To
11
374
All
INSTRUMENT CLUSTER
*SEATBELT INDICATOR NOT OPERATING PROPERLY —
Continued
TEST
ACTION
APPLICABILITY
11
Disconnect the seatbelt switch harness connector.
With the DRB, enter 9Body Computer9 then 9Inputs/Outputs9 and observe the
seatbelt switch state.
Does the DRB display 9seatbelt switch: Open9?
All
12
13
Yes
→ Replace the seatbelt switch.
Perform the Body Verification Test - Ver 1.
No
→ Go To
12
Turn the ignition off.
Disconnect the seatbelt switch harness connector.
Disconnect the BCM 9C49 harness connector.
Measure the resistance between ground and the seatbelt switch sense circuit.
Is the resistance below 5.0 ohms?
Yes
→ Repair the seatbelt switch sense circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
13
View repair options.
All
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
375
INSTRUMENT CLUSTER
Symptom:
*SPEEDOMETER GAUGE NOT OPERATING PROPERLY
POSSIBLE CAUSES
POWERTRAIN CONTROL MODULE
ATTEMPT TO COMMUNICATE WITH THE PCM
ENGINE TROUBLE CODES
INSTRUMENT CLUSTER SELF TEST
OBSERVE THE VEHICLE SPEED DISPLAY IN THE PCM
OBSERVE THE VEHICLE SPEED DISPLAY IN THE INSTRUMENT CLUSTER
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, enter 9Body9, 9Body Computer9, 9System Test9 then 9PCM Monitor9.
Is the PCM active on bus?
All
2
3
Yes
→ Go To
No
→ Refer to the Communications category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
2
Turn the ignition off.
During the self test all gauges should move from their lowest calibration point to
their highest calibration point then back down to its lowest.
Calibration points for the Speedometer: 0 MPH (0 KM/H), 20 MPH (40 KM/H) , 60
MPH (100 KM/H), 120 MPH (210 KM/H), 60 MPH (100 KM/H), 20 MPH (40 KM/H),
0 MPH (0 KM/H).
While holding the 9trip/reset9 button down on the instrument cluster, turn the
ignition forward one position (unlock/off position) to start the MIC self test, release
the button.
Did the Speedometer pass the self test?
Yes
→ Go To
No
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
All
3
With the DRB read ENGINE DTC’s.
Are there any engine DTC’s present?
All
Yes
→ Refer to symptom list for problems related to DRIVABILITY.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
376
INSTRUMENT CLUSTER
*SPEEDOMETER GAUGE NOT OPERATING PROPERLY —
Continued
TEST
ACTION
APPLICABILITY
4
Raise all four wheels off the ground and properly support the vehicle.
Start the engine.
Note: If the vehicle is equipped with traction control, the traction control
must be disabled.
With the DRB, enter 9Engine9 then 9Sensors9 and observe the vehicle speed display.
Place the gear shift lever in drive and observe the vehicle speed while accelerating.
Does the DRB display vehicle speed increasing proportionally as you accelerate?
All
5
Yes
→ Go To
No
→ Refer to the Driveability category for the related symptom(s) to
the vehicle speed sensor.
Perform the Body Verification Test - Ver 1.
5
Raise all four wheels off the ground and properly support the vehicle.
Start the engine.
Note: If the vehicle is equipped with traction control, the traction control
must be disabled.
With the DRB, enter 9Body9, 9Electro/Mech Cluster (MIC)9, 9Monitor Display9 then
9Engine Info9 and observe the vehicle speed display.
Place the gear shift lever in drive and observe the vehicle speed while accelerating.
Does the DRB display vehicle speed increasing proportionally as you accelerate?
Yes
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
No
→ If there are no possible causes remaining, replace the PCM.
Perform the Body Verification Test - Ver 1.
377
All
INSTRUMENT CLUSTER
Symptom:
*TACHOMETER NOT OPERATING PROPERLY
POSSIBLE CAUSES
POWERTRAIN CONTROL MODULE
ATTEMPT TO COMMUNICATE WITH THE PCM
ENGINE TROUBLE CODES
INSTRUMENT CLUSTER SELF TEST
OBSERVE THE RPM DISPLAY IN THE INSTRUMENT CLUSTER
OBSERVE THE RPM DISPLAY IN THE PCM
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, enter 9Body9, 9Body Computer9, 9System Test9 then 9PCM Monitor9.
Is the PCM active on bus?
All
2
3
4
Yes
→ Go To
No
→ Refer to the Communications category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
2
Turn the ignition off.
During the self test all gauges should move from their lowest calibration point to
their highest calibration point then back down to its lowest.
Calibration points for the Tachometer: 0 RPM, 500 RPM, 2000 RPM, 6000 RPM, 2000
RPM, 500 RPM, 0 RPM.
While holding the 9trip/reset9 button down on the instrument cluster, turn the
ignition forward one position (unlock/off position) to start the MIC self test, release
the button.
Did the Tachometer pass the self test?
Yes
→ Go To
No
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
All
3
With the DRB read ENGINE DTC’s.
Are there any engine DTC’s present?
All
Yes
→ Refer to symptom list for problems related to DRIVABILITY.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
Start the engine.
With the DRB, enter 9Engine9 then 9Sensors9 and observe the engine RPM display.
Does the DRB display engine RPM above 400 RPM?
Yes
→ Go To
No
→ Replace the Powertrain Control Module.
Perform the Body Verification Test - Ver 1.
5
378
All
INSTRUMENT CLUSTER
*TACHOMETER NOT OPERATING PROPERLY —
Continued
TEST
ACTION
APPLICABILITY
5
Start the engine.
With the DRB, enter 9Body9, 9Electro/Mech Cluster (MIC)9, 9Monitor Display9 then
9Engine Info9 and observe the engine RPM display.
Does the DRB display engine RPM above 400 RPM?
All
Yes
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
No
→ If there are no possible causes remaining, replace the PCM.
Perform the Body Verification Test - Ver 1.
379
INSTRUMENT CLUSTER
Symptom:
*TEMPERATURE GAUGE NOT OPERATING PROPERLY
POSSIBLE CAUSES
POWERTRAIN CONTROL MODULE
ATTEMPT TO COMMUNICATE WITH THE PCM
ENGINE TROUBLE CODES
INSTRUMENT CLUSTER SELF TEST
OBSERVE THE TEMPERATURE DISPLAY IN THE INSTRUMENT CLUSTER
OBSERVE THE TEMPERATURE DISPLAY IN THE PCM
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, enter 9Body9, 9Body Computer9, 9System Test9 then 9PCM Monitor9.
Is the PCM active on the bus?
All
2
3
4
Yes
→ Go To
No
→ Refer to the Communications category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
2
Turn the ignition off.
During the self test all gauges should move from their lowest calibration point to
their highest calibration point then back down to its lowest.
Calibration points for the Temperature Gauge: 9C9, Mid., H Norm., 9H9, H Norm.,
Mid., 9C9.
While holding the 9trip/reset9 button down on the instrument cluster, turn the
ignition forward one position (unlock/off position) to start the MIC self test, release
the button.
Did the Temperature Gauge pass the self test?
Yes
→ Go To
No
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
All
3
With the DRB read ENGINE DTC’s.
Are there any engine DTC’s present?
All
Yes
→ Refer to symptom list for problems related to DRIVABILITY.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
Start the engine.
With the DRB, enter 9Engine9 then 9Sensors9 and observe the engine temperature
display.
Does the DRB display approximately the correct engine temperature?
Yes
→ Go To
No
→ Replace the Powertrain Control Module.
Perform the Body Verification Test - Ver 1.
5
380
All
INSTRUMENT CLUSTER
*TEMPERATURE GAUGE NOT OPERATING PROPERLY —
Continued
TEST
ACTION
APPLICABILITY
5
Start the engine.
With the DRB, enter 9Body9, 9Electro/Mech Cluster (MIC)9, 9Monitor Display9 then
9Engine Info9 and observe the engine temperature display.
Does the DRB display approximately the correct engine temperature?
All
Yes
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
No
→ If there are no possible causes remaining, replace the PCM.
Perform the Body Verification Test - Ver 1.
381
INSTRUMENT CLUSTER
Symptom:
*TRACTION OFF INDICATOR NOT OPERATING PROPERLY
POSSIBLE CAUSES
INSTRUMENT CLUSTER (TRACTION CONTROL SWITCH SENSE CIRCUIT)
OBSERVE THE TRACTION OFF INDICATOR
OPEN GROUND CIRCUIT
OPEN TRACTION CONTROL SWITCH SENSE CIRCUIT
PERFORM INSTRUMENT CLUSTER SELF TEST
TRACTION CONTROL SWITCH
TRACTION CONTROL SWITCH SENSE CIRCUIT SHORTED TO GROUND
TRACTION CONTROL SWITCH SENSE CIRCUIT SHORTED TO VOLTAGE
WIRING HARNESS INTERMITTENT DEFECT
TEST
ACTION
APPLICABILITY
1
Note: The DRB must be able to communicate with the CAB module prior to
performing this test.
Note: If any CAB DTC’s are present, they must be repaired prior to
performing this test.
Turn the ignition off then on. This will start the bulb test.
Did the traction off indicator illuminate for several seconds?
All
2
3
Yes
→ Go To
No
→ Replace the Instrument cluster.
Perform the Body Verification Test - Ver 1.
2
Cycle the ignition switch from off to on and wait 10 seconds.
Is the traction off indicator illuminated?
Yes
→ Replace the Instrument cluster.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
3
Cycle the ignition switch from off to on and wait 10 seconds.
Monitor the traction off indicator while pressing and releasing the traction control
switch.
Does the traction off indicator turn on and off with the traction control switch?
Yes
→ Go To
4
No
→ Go To
5
382
All
INSTRUMENT CLUSTER
*TRACTION OFF INDICATOR NOT OPERATING PROPERLY —
Continued
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken wires.
Note: Visually inspect the related wire harness connectors. Look for broken,
bent, pushed out, or corroded terminals.
Were any problems found?
All
5
6
7
8
Yes
→ The traction off indicator is operational. Check wiring harness/
connectors as necessary.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
Turn the ignition off
Disconnect the traction control switch harness connector.
Measure the resistance between ground and the ground circuit.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the ground circuit for an open.
Perform the Body Verification Test - Ver 1.
All
6
Turn the ignition off
Disconnect the traction control switch harness connector.
Turn the ignition on.
Connect a jumper wire between the traction control switch sense circuit and the
ground circuit.
Monitor the traction off indicator while toggling the jumper wire.
Does the traction off indicator turn on and off as the jumper wire is toggled?
Yes
→ Replace the traction control switch.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
7
Turn the ignition off
Disconnect the traction control switch harness connector.
Disconnect the Instrument Cluster 9C29 harness connector.
Measure the resistance of the traction control switch sense circuit between the
traction control switch connector and the Instrument Cluster 9C29 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the traction control switch sense circuit for an open.
Perform the Body Verification Test - Ver 1.
All
8
Turn the ignition off
Disconnect the traction control switch harness connector.
Disconnect the Instrument Cluster 9C29 harness connector.
Measure the resistance between ground and the traction control switch sense circuit.
Is the resistance below 5.0 ohms?
Yes
→ Repair the traction control switch sense circuit for a short to
ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
9
383
All
INSTRUMENT CLUSTER
*TRACTION OFF INDICATOR NOT OPERATING PROPERLY —
TEST
9
10
ACTION
Turn the ignition off
Disconnect the traction control switch harness connector.
Disconnect the Instrument Cluster 9C29 harness connector.
Turn the ignition on.
Measure the voltage of the traction control switch sense circuit.
Is the voltage above 1.0 volts?
Yes
→ Repair the traction control switch sense circuit for a short to
voltage.
Perform the Body Verification Test - Ver 1.
No
→ Go To
Continued
APPLICABILITY
All
10
View repair options.
All
Repair
If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
384
INSTRUMENT CLUSTER
Symptom:
*TRACTION ON INDICATOR NOT OPERATING PROPERLY
POSSIBLE CAUSES
INSTRUMENT CLUSTER
INSTRUMENT CLUSTER (INOPERATIVE TRAC ON INDICATOR IN TRACTION CONTROL
MODE)
DEFECTIVE BULB OR SOCKET
INSTRUMENT CLUSTER (TRACTION ON INDICATOR ON ALL THE TIME)
TRACTION CONTROL INOPERATIVE
TEST
ACTION
APPLICABILITY
1
Note: The DRB must be able to communicate with the CAB module prior to
performing this test.
Note: If any CAB DTC’s are present, they must be repaired prior to
performing this test.
Turn the ignition off then on. This will start the bulb test.
Did the traction on indicator illuminate for several seconds?
All
2
3
4
Yes
→ Go To
2
No
→ Go To
4
Turn the ignition on and wait 10 seconds.
Observe the traction on indicator.
Is the traction on indicator on all the time?
All
Yes
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
No
→ Go To
3
Note: Perform this test only if the traction on indicator does not illuminate
when the vehicle is in a traction control condition.
Drive vehicle to a safe slippery location and stop.
Accelerate vehicle to enable the traction control.
Can you physically feel the traction control engage while you accelerate in a slippery
condition?
Yes
→ Replace the Instrument Cluster.
Perform the Body Verification Test - Ver 1.
No
→ Replace the Controller Antilock Brake (CAB) module.
Perform the Body Verification Test - Ver 1.
Turn the ignition off.
Remove and inspect the traction on bulb and socket.
Is there a problem with the bulb or socket?
Yes
→ Repair or replace the defective bulb or socket as needed.
Perform the Body Verification Test - Ver 1.
No
→ If there are no possible causes remaining, replace the Instrument
Cluster.
Perform the Body Verification Test - Ver 1.
385
All
All
INTERIOR LIGHTING
Symptom:
COURTESY LAMP OUTPUT SHORT TO BATTERY
When Monitored and Set Condition:
COURTESY LAMP OUTPUT SHORT TO BATTERY
When Monitored:
Ignition in RUN and IOD fuse/connector installed.
Set Condition: The BCM has detected a short to battery on either the Courtesy Lamp
Driver circuit or the Courtesy Lamp Control circuit for 5 seconds.
POSSIBLE CAUSES
CHECKING EACH OVERHEAD AND REAR READING BULBS
COURTESY LAMPS DRIVER CKT SHORT TO VOLTAGE
HEADLINER HARNESS SHORT TO VOLTAGE
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Note: Whenever a step is completed, cycle the ignition key off then on to see
if the problem is isolated. This will clear the code and allow the remaining
courtesy lamps to light.
Disconnect the Junction Block C11 (Headliner) Connector from the front of the
junction block.
Cycle the ignition switch off then back on.
Did the remaining courtesy lamps (door lamps) come on?
All
2
3
Yes
→ Go To
2
No
→ Go To
4
Ensure the Junction Block C11 (Headliner) connector (on the front of the junction
block) is connected before proceeding.
Turn on all overhead, map and rear rearing lamps by their own individual switches.
This will disconnect each lamp from the Courtesy Lamp Driver circuit.
Did any lamp fail to light when it was turned on by it’s own switch?
No
→ Go To
Yes
→ Check for shorted bulb and repair lamp as necessary.
Perform the Body Verification Test - Ver 1.
All
3
View repair options.
All
Repair
Repair the Courtesy Lamps Driver Circuit in the headliner
harness for a short to voltage.
Perform the Body Verification Test - Ver 1.
386
INTERIOR LIGHTING
COURTESY LAMP OUTPUT SHORT TO BATTERY —
Continued
TEST
ACTION
APPLICABILITY
4
Disconnect the Junction Block C11 (Headliner) Connector from the front of the
junction block.
Remove ALL door courtesy lamp bulbs.
Turn ignition off.
Remove the Body Control Module from the junction block.
Measure the voltage of the Courtesy Lamps Driver circuit at the driver door courtesy
lamp socket. One contact will have battery voltage but the courtesy lamps driver ckt
should not.
Is there any voltage on the Courtesy Lamps Driver Circuit?
All
5
Yes
→ Repair the Courtesy Lamps Driver Circuit for a short to voltage.
Perform the Body Verification Test - Ver 1.
No
→ Go To
5
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
387
INTERIOR LIGHTING
Symptom:
*COURTESY LAMPS INOPERATIVE - ALL LAMPS
POSSIBLE CAUSES
JUNCTION BLOCK OPEN
OVERHEAD COURTESY LAMPS DRIVER CKT OPEN
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Gain access to the Junction Block C11 (Headliner) connector but do not disconnect.
While backprobing, measure the voltage of the Fused B(+) circuit in cavity #6.
Is the voltage above 10.0 volts?
All
2
3
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1.
2
Backprobe a jumper wire from the Courtesy Lamps Driver ckt (cavity 8) in the
Junction Block C11 connector to ground.
Did the overhead courtesy lamps come on?
Yes
→ Go To
No
→ Repair the open Courtesy Lamps Driver circuit.
Perform the Body Verification Test - Ver 1.
All
3
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
388
INTERIOR LIGHTING
Symptom:
*COURTESY LAMPS INOPERATIVE - DOOR LAMPS
POSSIBLE CAUSES
OPEN FUSED B(+) TO DOOR LAMPS
COURTESY LAMPS DRIVER CIRCUIT OPEN
JUNCTION BLOCK OPEN
TEST
1
2
3
ACTION
Remove the lens from the driver door courtesy lamp.
Measure the voltage of the Fused B(+) circuit at the bulb..
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the open Fused B(+) circuit.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
Note: Ensure the overhead lamps are operational before proceeding. This
test is for the door courtesy lamps being inoperable only.
Disconnect the Junction Block 9C69 connector, on the rear of the junction block.
Connect a jumper wire from the Courtesy Lamps Driver ckt in the Junction Block
9C69 connector to ground.
Did the door courtesy lamps come on?
Yes
→ Go To
No
→ Repair the open Courtesy Lamps Driver circuit from the door
lamps to the junction block.
Perform the Body Verification Test - Ver 1.
All
3
If there are no potential causes remaining, it is assumed the Junction Block needs to
be replaced.
View repair options.
Repair
Replace the Junction Block
Perform the Body Verification Test - Ver 1.
389
All
INTERIOR LIGHTING
Symptom:
*COURTESY LAMPS INOPERATIVE - OVERHEAD LAMPS
POSSIBLE CAUSES
JUNCTION BLOCK OPEN
OVERHEAD COURTESY LAMPS DRIVER CKT OPEN
TEST
ACTION
APPLICABILITY
1
Gain access to the Junction Block C11 (Headliner) connector but do not disconnect.
While backprobing, measure the voltage of the Fused B(+) circuit in cavity #6.
Is the voltage above 10.0 volts?
All
2
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1.
2
Backprobe a jumper wire from the Courtesy Lamps Driver ckt (cavity 8) in the
Junction Block C11 connector to ground.
Did the overhead courtesy lamps come on?
Yes
→ Test Complete.
No
→ Repair the open Courtesy Lamps Driver circuit.
Perform the Body Verification Test - Ver 1.
390
All
INTERIOR LIGHTING
Symptom:
*COURTESY LAMPS INOPERATIVE FROM DOME LAMP SWITCH
ONLY
POSSIBLE CAUSES
HEADLAMP SWITCH DIMMER
BCM
TEST
1
2
ACTION
Ensure all doors are closed and the courtesy lamp switch is turned off.
With the DRBIIIt, read the 9Courtesy Lamp9 status.
Rotate the Courtesy Switch to the ON position.
Does the DRB display: Courtesy Lamps 9ON9?
Yes
→ Go To
No
→ Replace the Headlamp Switch.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
391
INTERIOR LIGHTING
Symptom:
*COURTESY LAMPS INOPERATIVE FROM DRIVERS DOOR
POSSIBLE CAUSES
OPEN GROUND WIRE
OPEN DRIVER DOOR AJAR SWITCH SENSE
DEFECTIVE DRIVER DOOR AJAR SWITCH
BODY CONTROL MODULE
TEST
1
2
3
4
ACTION
Disconnect the Driver Door Lock Motor/Ajar switch connector
Measure the resistance of the ground circuit.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open ground wire to the door ajar switch connector.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
Turn the ignition off.
Disconnect the Body Control Module 9C49 connector.
Remove the inner door trim panel.
Disconnect the Door Lock Motor/Ajar Switch connector.
Measure the resistance of the Driver Door Ajar Switch Sense circuit between the door
lock motor/ajar switch connector and the BCM 9C49connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Driver Door Ajar Switch Sense wire.
Perform the Body Verification Test - Ver 1.
All
3
Ensure the Door Lock Motor/Ajar Switch connector is connected.
Disconnect the Body Control Module 9C49 connector.
Ensure the door is left open during this test.
Turn the ignition off.
Measure the resistance of the Driver Door Ajar Switch Sense circuit in the BCM 9C49
connector to ground.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Driver Door Lock Motor/Ajar Switch Assy.
Perform the Body Verification Test - Ver 1.
All
4
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
392
INTERIOR LIGHTING
Symptom:
*COURTESY LAMPS INOPERATIVE FROM LEFT REAR DOOR
POSSIBLE CAUSES
OPEN GROUND WIRE
OPEN DOOR AJAR SWITCH SENSE (LEFT REAR)
BODY CONTROL MODULE DEFECTIVE (AJAR SWITCH OPEN)
DEFECTIVE LEFT REAR DOOR AJAR SWITCH
TEST
1
2
3
4
ACTION
Disconnect the Left Rear Door Lock Motor/Ajar switch connector
Measure the resistance of the ground circuit.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open ground wire to the Door Lock Motor/Ajar Switch
connector.
Perform body verification test.
APPLICABILITY
All
2
Turn the ignition off.
Disconnect the Body Control Module 9C49 connector.
Remove the inner door trim panel.
Disconnect the Left Rear Door Lock Motor/Ajar Switch connector.
Measure the resistance of the Door Ajar Switch Sense (LR) (cavity 1) circuit between
the door lock motor/ajar switch connector and the Body Control Module 9C49
connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Door Ajar Switch Sense wire (Left Rear).
Perform the Body Verification Test - Ver 1.
All
3
Turn the ignition off.
Ensure the Door Lock Motor/Ajar Switch connector is connected.
Disconnect the Body Control Module 9C49 connector.
Ensure the door is left open during this test.
Measure the resistance of the Door Ajar Switch Sense (LR) circuit (cavity 1) in the
Body Control Module 9C49 connector to ground.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Door Lock Motor/Ajar Switch Assy.
Perform the Body Verification Test - Ver 1.
All
4
If there are no potential causes remaining, the Body Control Module is assumed to be
defective.
View repair options.
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
393
SENTRY KEY
THEFT DETERRENT SYSTEM
INTERIOR LIGHTING
Symptom:
*COURTESY LAMPS INOPERATIVE FROM PASSENGER DOOR
POSSIBLE CAUSES
OPEN GROUND WIRE
OPEN PASSENGER DOOR AJAR SWITCH SENSE WIRE
BODY CONTROL MODULE
DEFECTIVE PASSENGER DOOR AJAR SWITCH
TEST
1
2
3
4
ACTION
Disconnect the Passenger Door Lock Motor/Ajar switch connector
Measure the resistance of the ground circuit.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open ground wire to the Door Lock Motor/Ajar Switch
connector.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
Turn the ignition off.
Disconnect the Body Control Module 9C49 connector.
Remove the inner door trim panel.
Disconnect the Door Lock Motor/Ajar Switch connector.
Measure the resistance of the Passenger Door Ajar Switch Sense circuit between the
door lock motor/ajar switch connector and the BCM 9C49 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Passenger Door Ajar Switch Sense wire.
Perform the Body Verification Test - Ver 1.
All
3
Ensure the Door Lock Motor/Ajar Switch connector is connected.
Turn the ignition off.
Disconnect the Body Control Module 9C49 connector.
Ensure the door is left open during this test.
Measure the resistance of the Passenger Door Ajar Switch Sense circuit in the BCM
9C49 connector to ground.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Passenger Door Lock Motor/Ajar Switch Assy.
Perform the Body Verification Test - Ver 1.
All
4
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
394
INTERIOR LIGHTING
Symptom:
*COURTESY LAMPS INOPERATIVE FROM RIGHT REAR DOOR
POSSIBLE CAUSES
OPEN GROUND WIRE
OPEN DOOR AJAR SWITCH SENSE (RR)
BODY CONTROL MODULE DEFECTIVE (AJAR SWITCH OPEN)
DEFECTIVE RIGHT REAR DOOR AJAR SWITCH
TEST
1
2
3
4
ACTION
Disconnect the Passenger Rear Door Lock Motor/Ajar switch connector
Measure the resistance of the ground circuit.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open ground wire to the door ajar switch connector.
Perform body verification test.
APPLICABILITY
All
2
Turn the ignition off.
Disconnect the Body Control Module 9C49 connector.
Remove the inner door trim panel.
Disconnect the Right Rear Door Lock Motor/Ajar Switch connector.
Measure the resistance of the Door Ajar Switch Sense (Right Rear)(cavity 10) circuit
between the door lock motor/ajar switch connector and the Body Control Module
9C49connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Door Ajar Switch Sense wire (RR).
Perform the Body Verification Test - Ver 1.
All
3
Turn the ignition off.
Disconnect the Body Control Module 9C49 connector.
Ensure the door is in the open during this test.
Ensure the Door Lock Motor/Ajar Switch connector is connected.
Measure the resistance of the Door Ajar Switch Sense (Right Rear) (cavity 10) circuit
in the Body Control Module 9C49 connector to ground.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Door Lock Motor/Ajar Switch Assy.
Perform the Body Verification Test - Ver 1.
All
4
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
395
INTERIOR LIGHTING
Symptom:
*COURTESY LAMPS STAY ON AT ALL TIMES
POSSIBLE CAUSES
LEFT REAR DOOR AJAR SWITCH SHORTED
PASSENGER DOOR AJAR SWITCH SHORTED
RIGHT REAR DOOR AJAR SWITCH SHORTED
SHORTED DOOR AJAR SWITCH SENSE WIRE
SHORTED DOOR AJAR SWITCH SENSE WIRE
COURTESY LAMPS DRIVER (BODY HARNESS) SHORT GROUND
COURTESY LAMPS DRIVER (HEADLINER) CKT SHORT TO GROUND
DEF DRIVER DOOR AJAR SWITCH SHORTED
BODY CONTROL MODULE
BODY CONTROL MODULE
BODY CONTROL MODULE
TEST
1
2
3
ACTION
Close the driver door.
With the DRB select: 9Body9 9Body Computer9 9Input/Output9
Read the 9Dr Door Ajar Sw9 state.
Does the DRBIII Show: 9OPEN9?
Yes
→ Go To
2
No
→ Go To
9
Close all the passenger doors.
With the DRB III select: 9Body9 9Body Controller9 9Input/Output9
Read the 9Door Ajar Switch9 state.
Does the DRBIII Show: 9OPEN9?
Yes
→ Go To
3
No
→ Go To
6
Ensure the Courtesy Lamp Switch is off.
Close all passenger doors.
Close the Driver Door Lock Latch Assembly (for door ajar switch to open).
Disconnect the Junction Block 9C119 connector from the front of the junction block.
Observe the Door Courtesy Lamps.
Did the Door Courtesy Lamps turn off?
Yes
→ Repair the Courtesy Lamps Driver circuit in the headliner
harness for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
396
APPLICABILITY
All
All
All
INTERIOR LIGHTING
*COURTESY LAMPS STAY ON AT ALL TIMES —
TEST
4
5
Continued
ACTION
Remove the Body Control Module from the Junction Block.
Observe the Courtesy Lamps.
Did the Courtesy Lamps turn off?
Yes
→ If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
All
5
If there are no potential causes remaining, it is assumed the Courtesy Lamp Driver
Circuit in the Body Harness needs to be repaired for a short to ground.
View repair options.
All
Repair
Repair the Courtesy Lamps Driver circuit (in body harness) for a
short to ground.
Perform the Body Verification Test - Ver 1.
6
Close all passenger doors.
With the DRB III select: 9Body9 9Body Computer9 9Input/Output9
Read the 9Door Ajar Switch9 state.
Gain access to and disconnect each passenger door lock motor/ajar switch and
observe the DRBIII.
When removing which switch did the DRB change states to read 9Door Ajar Sw:
Open9?
All
Passenger Door
Replace the Passenger Door Ajar Switch.
Perform the Body Verification Test - Ver 1.
Left Rear Door
Replace the left rear door lock motor/ajar switch.
Perform the Body Verification Test - Ver 1.
Right Rear Door
Replace the Right Rear Door Lock Motor/Ajar Switch assembly.
Perform the Body Verification Test - Ver 1.
DRB Did Not Change
Go To 7
7
8
Gain access to and disconnect all Passenger Door Lock Motor/Ajar Switch connectors.
Disconnect the Body Control Module 9C49 Connector.
Measure the resistance of each passenger Door Ajar Switch Sense circuits in the
BCM 9C49 connector cavities 1, 2 and 10 to ground.
Is the resistance below 1000.0 ohms in any of the passenger Door Ajar Switch Sense
circuits?
Yes
→ Using the schematic, determine which door ajar switch sense
circuit is shorted to ground and repair as necessary.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
8
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
397
INTERIOR LIGHTING
*COURTESY LAMPS STAY ON AT ALL TIMES —
Continued
TEST
ACTION
APPLICABILITY
9
Turn the ignition off.
Remove the inner door trim panel.
Disconnect the Door Lock Motor/Ajar Switch connector.
Disconnect the Body Control Module 9C49 connector.
Measure the resistance of the Driver Door Ajar Switch Sense circuit at the BCM 9C49
connector to ground.
Is the resistance below 5.0 ohms?
All
10
11
Yes
→ Repair the Door ajar switch sense wire for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
10
Turn the ignition off.
Disconnect the Body Control Module 9C49 connector.
Ensure the door latch is in the latched position during this test.
Ensure the Driver Door Lock Motor/Ajar Switch is connected.
Measure the resistance of the Driver Door Ajar Switch Sense circuit in the BCM 9C49
connector to ground.
Is the resistance below 5.0 ohms?
Yes
→ Replace the defective Door Lock Motor/Ajar switch assembly
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
11
View repair options.
All
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
398
MEMORY SEAT
Symptom:
DRIVER MIRROR HORIZONTAL SENSOR OUT OF RANGE HIGH
When Monitored and Set Condition:
DRIVER MIRROR HORIZONTAL SENSOR OUT OF RANGE HIGH
When Monitored:
Ignition on.
Set Condition: This code is set when the mirror sensor feedback to the MHSMM is
greaters than the mirror out of range high value stored in EEPROM.
POSSIBLE CAUSES
DRIVER MIRROR HORIZONTAL POSITION SIGNAL WIRE SHORT TO VOLTAGE
DRIVER MEMORY MIRROR
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
3
ACTION
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Turn the ignition on.
Measure the voltage of the Driver Mirror Horizontal Position Signal circuit.
Is the voltage above 4.5 volts?
Yes
→ Go To
No
→ Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
APPLICABILITY
All
2
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Disconnect the Driver Power Mirror connector.
Turn the ignition on.
Measure the voltage of the Driver Horizontal Position Signal circuit in the driver
power mirror (harness side) connector.
Is there any voltage present?
Yes
→ Repair the Driver Mirror Horizontal Position Signal wire for a
short to voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
3
View repair options.
All
Repair
If there are no possible causes remaining, replace the Driver
Memory Mirror.
Perform the Memory/Heated System Verification Test - Ver 1.
399
MEMORY SEAT
Symptom:
DRIVER MIRROR HORIZONTAL SENSOR OUT OF RANGE LOW
When Monitored and Set Condition:
DRIVER MIRROR HORIZONTAL SENSOR OUT OF RANGE LOW
When Monitored:
Ignition on.
Set Condition: This code is set when the mirror sensor feedback to the MHSMM is less
than the mirror out of range low value stored in EEPROM.
POSSIBLE CAUSES
DRIVER MIRROR HORIZONTAL POSITION SIGNAL WIRE SHORT TO GROUND
DRIVER MEMORY MIRROR
MEMORY HEATED SEAT/MIRROR MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the resistance of the Driver Mirror Horizontal Position Signal circuit to
ground.
Is the resistance below 0.7 ohms?
All
2
3
Yes
→ Go To
No
→ Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
2
Turn the ignition off.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Disconnect the Driver Power Mirror connector.
Measure the resistance of the Driver Mirror Horizontal Position Signal circuit to
ground at the driver power mirror (harness side) connector.
Is the resistance below 1000.0 ohms?
Yes
→ Repair the Driver Mirror Horizontal Position Signal wire for a
short to ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
3
View repair options.
All
Repair
If there are no possible causes remaining, replace the Driver
Memory Mirror.
Perform the Memory/Heated System Verification Test - Ver 1.
400
MEMORY SEAT
Symptom:
DRIVER MIRROR VERTICAL SENSOR OUT OF RANGE HIGH
When Monitored and Set Condition:
DRIVER MIRROR VERTICAL SENSOR OUT OF RANGE HIGH
When Monitored:
Ignition on.
Set Condition: This code is set when the mirror sensor feedback to the MHSMM is
greater than the mirror out of range high value stored in EEPROM.
POSSIBLE CAUSES
DRIVER MIRROR VERTICAL POSITION SIGNAL WIRE SHORT TO VOLTAGE
DRIVER MEMORY MIRROR
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
3
ACTION
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Turn the ignition on.
Measure the voltage of the Driver Mirror Vertical Position Signal circuit.
Is the voltage above 4.5 volts?
Yes
→ Go To
No
→ Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
APPLICABILITY
All
2
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Disconnect the Driver Power Mirror connector.
Turn the ignition on.
Measure the voltage of the Driver Vertical Position Signal circuit in the driver power
mirror (harness side) connector.
Is there any voltage present?
Yes
→ Repair the Driver Mirror Vertical Position Signal wire for a short
to voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
3
View repair options.
All
Repair
If there are no possible causes remaining, replace the Driver
Memory Mirror.
Perform the Memory/Heated System Verification Test - Ver 1.
401
MEMORY SEAT
Symptom:
DRIVER MIRROR VERTICAL SENSOR OUT OF RANGE LOW
When Monitored and Set Condition:
DRIVER MIRROR VERTICAL SENSOR OUT OF RANGE LOW
When Monitored:
Ignition on.
Set Condition: This code is set when the mirror sensor feedback to the MHSMM is less
than the mirror out of range low value stored in EEPROM.
POSSIBLE CAUSES
DRIVER MIRROR VERTICAL POSITION SIGNAL WIRE SHORT TO GROUND
DRIVER MEMORY MIRROR
MEMORY HEATED SEAT/MIRROR MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the resistance of the Driver Mirror Vertical Position Signal circuit to
ground.
Is the resistance below 0.7 ohms?
All
2
3
Yes
→ Go To
No
→ Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
2
Turn the ignition off.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Disconnect the Driver Power Mirror connector.
Measure the resistance of the Driver Vertical Position Signal circuit to ground at the
driver power mirror (harness side) connector.
Is the resistance below 1000.0 ohms?
Yes
→ Repair the Driver Mirror Vertical Position Signal wire for a short
to ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
3
View repair options.
All
Repair
If there are no possible causes remaining, replace the Driver
Memory Mirror.
Perform the Memory/Heated System Verification Test - Ver 1.
402
MEMORY SEAT
Symptom:
FRONT RISER DOWN POSITION STUCK
When Monitored and Set Condition:
FRONT RISER DOWN POSITION STUCK
When Monitored:
Ignition On.
Set Condition: If the seat switch is active for 30 seconds, this code will set and the
MHSMM will ignore the input until the state has changed. Once the stuck condition is
removed, the seat will resume to normal operation. Code will remain for 20 ignition cycles.
POSSIBLE CAUSES
SEAT FRONT DOWN SWITCH SENSE WIRE SHORT TO VOLTAGE
DRIVER POWER SEAT SWITCH
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
3
ACTION
Disconnect the Power Seat Switch connector.
Measure the voltage of the Seat Front Down Switch Sense circuit.
Is there any voltage present?
Yes
→ Go To
No
→ Replace the Power Seat Switch.
Perform the Memory/Heated System Verification Test - Ver 1.
APPLICABILITY
All
2
Disconnect the Power Seat Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Turn the ignition on.
Measure the voltage of the Seat Front Down Switch Sense circuit to ground..
Is there any voltage present?
Yes
→ Repair the Seat Front Down Switch Sense wire for a short to
voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
3
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
403
All
MEMORY SEAT
Symptom:
FRONT RISER SENSOR OUT OF RANGE HIGH
When Monitored and Set Condition:
FRONT RISER SENSOR OUT OF RANGE HIGH
When Monitored:
Igntion on.
Set Condition: This condition is immediately set when the seat motor potentiometer
feeds a value higher than the Memory Seat Module has stored in EEPROM.
POSSIBLE CAUSES
SEAT SENSOR GROUND WIRE OPEN
FRONT RISER SENSOR SIGNAL SHORT TO MOTOR
FRONT RISER POS SIGNAL CKT SHORT TO VOLTAGE
FRONT RISER SENSOR DEFECTIVE HIGH
SEAT SENSOR 5 VOLT SUPPLY SHORT TO BATTERY
MEMORY HEATED SEAT/MIRROR MODULE
MEMORY HEATED SEAT/MIRROR MODULE
TEST
ACTION
APPLICABILITY
1
Turn ignition off.
Disconnect the Driver Power Seat Front Riser Sensor connector.
Measure the resistance of the Seat Position Sensor Ground circuit at the driver
power seat front riser connector.
Is the resistance below 5.0 ohms?
All
2
3
No
→ Go To
2
Yes
→ Go To
4
Turn ignition off.
Disconnect the Memory Heate dSeat/Mirror Module 9C29 connector.
Disconnect the Driver Power Seat Front Riser Sensor connector.
Measure the resistance of the Seat Position Sensor Ground wire between the MSM
connector and the sensor connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Seat Sensor Ground Wire.
Perform the Memory/Heated System Verification Test - Ver 1.
All
3
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
404
All
MEMORY SEAT
FRONT RISER SENSOR OUT OF RANGE HIGH —
Continued
TEST
ACTION
APPLICABILITY
4
Ensure all seat and sensor connectors are connected and front riser motor is
operational.
With the DRB III select: 9Body9 9Memory Seat9 9Sensors9
Monitor the Front Riser Position sensor while operating the seat front riser to both
limits.
Did the voltage ever go above 8.0 volts ONLY when the motor was in operation?
All
5
6
7
8
Yes
→ Replace the Seat Track Assembly (defective sensor).
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
5
Disconnect the Seat Front Riser Position Sensor connector.
Measure the voltage between the Seat Sensor 5 volt supply circuit and ground.
Is the voltage above 5.5 volts?
Yes
→ Repair the seat sensor 5 volt supply ckt for a short to battery.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
6
Disconnect the Driver Power Seat Front Riser Sensor connector.
Disconnect the Memory Seat Module 9C19 connector.
Turn ignition on.
Measure the voltage between the Front Riser Position Signal circuit and ground.
Is the voltage above 0.2 volts?
No
→ Go To
Yes
→ Repair the Front Riser Position Signal ckt for a short to voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
All
7
Turn ignition off.
Disconnect the Driver Power Seat Front Riser Sensor connector.
Ensure the Memory Seat Module is fully connected before proceeding.
Turn ignition on.
With the DRB III select: 9Body9 9Memory Seat9 9Sensors9
Read the 9Front Riser Position Sensor9 voltage
Is the voltage above 0.2 volts?
Yes
→ Go To
No
→ Replace the Seat Track Assy (Sensor defective).
Perform the Memory/Heated System Verification Test - Ver 1.
All
8
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heaated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
405
All
MEMORY SEAT
Symptom:
FRONT RISER SENSOR OUT OF RANGE LOW
When Monitored and Set Condition:
FRONT RISER SENSOR OUT OF RANGE LOW
When Monitored:
Ignition on.
Set Condition: This code is immediately set when the seat motor potentiometer feeds a
value lower than the Memory Seat Module has stored in EEPROM.
POSSIBLE CAUSES
FRONT RISER POS SIGNAL CKT SHORT TO GROUND
FRONT RISER POSITION SIGNAL CKT OPEN
SEAT SENSOR 5 VOLT SUPPLY OPEN
SEAT SENSOR 5 V SUPPLY SHORT TO GROUND
FRONT RISER SENSOR DEFECTIVE (LOW)
MEMORY HEATED SEAT/MIRROR MODULE
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
3
ACTION
Ensure the Memory Seat Module is fully connected before proceeding.
Disconnect the Driver Power Seat Front Riser Sensor connector.
Turn ignition on.
Measure the voltage of the Seat Sensor 5 Volt Supply circuit.
Is the voltage above 4.5 volts?
No
→ Go To
2
Yes
→ Go To
5
Turn ignition off.
Disconnect the MemoryHeated Seat/Mirror Module 9C29 connector.
Disconnect the Driver Power Seat Front Riser Sensor connector.
Measure the resistance of the Seat Sensor 5 Volt Supply circuit between the Front
Riser Sensor connector and the Module 9C19 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Seat Sensor 5 Volt Supply circuit.
Perform the Memory/Heated System Verification Test - Ver 1.
APPLICABILITY
All
All
3
Disconnect the Memory Heated Seat/Mirror Module 9C29 connector.
Turn ignition off.
Measure the resistance of the Seat Sensor 5 Volt Supply circuit to body ground.
Is the resistance below 100.0 ohms?
Yes
→ Repair the Seat Sensor 5 Volt Supply for a short to ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
4
406
All
MEMORY SEAT
FRONT RISER SENSOR OUT OF RANGE LOW —
TEST
4
Continued
ACTION
If there are no possible causes remaining, view 9Repair9.
APPLICABILITY
All
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
5
6
7
8
Turn ignition off.
Disconnect the Driver Power Seat Front Riser Sensor connector.
Connect a jumper wire between Seat Sensor 5 Volt Supply and Front Riser Position
Signal circuits.
Ensure the Memory Seat Module is fully connected before proceeding.
With the DRB III select: 9Body9 9Memory Seat9 9Sensors9
Turn ignition on.
Read the 9Front Riser Position Sensor9 voltage
Is the voltage above 4.5 volts?
Yes
→ Replace the Seat Track Assy (sensor defective).
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
6
Turn ignition off.
Disconnect the Memory Seat Module 9C19 connector.
Disconnect the Driver Power Seat Front Riser Sensor connector.
Measure the resistance of the Front Riser Position Signal circuit to ground.
Is the resistance below 1000 (1 K) ohms?
Yes
→ Repair the Front Riser Position Signal Ckt for a short to ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
7
Turn ignition off.
Disconnect the Driver Power Seat Front Riser Sensor connector.
Disconnect the Memory Seat Module 9C19 connector.
Measure the resistance of the Front Riser Position Signal circuit between the Sensor
connector and the Module connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Front Riser Position Signal circuit.
Perform the Memory/Heated System Verification Test - Ver 1.
All
8
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
407
All
MEMORY SEAT
Symptom:
FRONT RISER UP POSITION STUCK
When Monitored and Set Condition:
FRONT RISER UP POSITION STUCK
When Monitored:
Ignition on.
Set Condition: If the seat switch is active for 30 seconds, this code will set and the
MHSMM will ignore the input until the state has changed. Once the stuck condition is
removed, the seat will resume to normal operation. Code will remain for 20 ignition cycles.
POSSIBLE CAUSES
SEAT FRONT UP SWITCH SENSE WIRE SHORT TO VOLTAGE
DRIVER POWER SEAT SWITCH
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
ACTION
Disconnect the Power Seat Switch connector.
Measure the voltage of the Seat Front Up Switch Sense circuit.
Is there any voltage present?
Yes
→ Go To
No
→ Replace the Power Seat Switch.
Perform the Memory/Heated System Verification Test - Ver 1.
APPLICABILITY
All
2
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
408
All
MEMORY SEAT
Symptom:
HORIZONTAL FORWARD POSITION STUCK
When Monitored and Set Condition:
HORIZONTAL FORWARD POSITION STUCK
When Monitored:
Ignition on.
Set Condition: If the seat switch is active for 30 seconds, this code will set and the
MHSMM will ignore the input until the state has changed. Once the stuck condition is
removed, the seat will resume to normal operation. Code will remain for 20 ignition cycles.
POSSIBLE CAUSES
HORIZONTAL FORWARD SWITCH SENSE WIRE SHORT TO VOLTAGE
DRIVER POWER SEAT SWITCH
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
3
ACTION
Disconnect the Power Seat Switch connector.
Measure the voltage of the Seat Horizontal Forward Switch Sense circuit.
Is there any voltage present?
Yes
→ Go To
No
→ Replace the Power Seat Switch.
Perform the Memory/Heated System Verification Test - Ver 1.
APPLICABILITY
All
2
Disconnect the Power Seat Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Turn the ignition on.
Measure the voltage of the Horizontal Forward Switch Sense circuit to ground..
Is there any voltage present?
Yes
→ Repair the Horizontal Forward Switch Sense wire for a short to
voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
3
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
409
All
MEMORY SEAT
Symptom:
HORIZONTAL REARWARD POSITION STUCK
When Monitored and Set Condition:
HORIZONTAL REARWARD POSITION STUCK
When Monitored:
Ignition on.
Set Condition: If the seat switch is active for 30 seconds, this code will set and the
MHSMM will ignore the input until the state has changed. Once the stuck condition is
removed, the seat will resume to normal operation. Code will remain for 20 ignition cycles.
POSSIBLE CAUSES
SEAT HORIZONTAL REARWARD SWITCH SENSE WIRE SHORT TO VOLTAGE
DRIVER POWER SEAT SWITCH
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
3
ACTION
Disconnect the Power Seat Switch connector.
Measure the voltage of the Seat Horizontal Rearward Switch Sense circuit.
Is there any voltage present?
Yes
→ Go To
No
→ Replace the Power Seat Switch.
Perform the Memory/Heated System Verification Test - Ver 1.
APPLICABILITY
All
2
Disconnect the Power Seat Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Turn the ignition on.
Measure the voltage of the Seat Horizontal Rearward Switch Sense circuit to
ground..
Is there any voltage present?
Yes
→ Repair the Seat Front Down Switch Sense wire for a short to
voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
3
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
410
All
MEMORY SEAT
Symptom:
HORIZONTAL SENSOR OUT OF RANGE HIGH
When Monitored and Set Condition:
HORIZONTAL SENSOR OUT OF RANGE HIGH
When Monitored:
Ignition on.
Set Condition: This condition is immediately set when the seat motor potentiometer
feeds a value higher than the Memory Heated Seat/Mirror Module has stored in EEPROM.
POSSIBLE CAUSES
SEAT SENSOR GROUND WIRE OPEN
HORIZONTAL POSITION SENSOR DEFECTIVE HIGH
SEAT SENSOR 5 VOLT SUPPLY SHORT TO BATTERY
CHECKING SEAT HORIZONTAL POS SIGNAL SHORT TO VOLTAGE
SEAT HORIZONTAL POSITION SIGNAL SHORT TO MOTOR
MEMORY HEATED SEAT/MIRROR MODULE
MEMORY HEATED SEAT/MIRROR MODULE
TEST
ACTION
APPLICABILITY
1
Turn ignition off.
Disconnect the Driver Power Seat Horizontal Position Sensor connector
Measure the resistance of the Seat Position Sensor Ground circuit to body ground..
Is the resistance below 5.0 ohms?
All
2
3
No
→ Go To
2
Yes
→ Go To
4
Turn ignition off.
Disconnect the Driver Power Seat Horizontal Position Sensor connector
Disconnect the Memory Heated Seat/Mirror Module 9C29 connector.
Measure the resistance of the Seat Position Sensor Ground wire between the MSM
connector and the sensor connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Seat Sensor Ground Wire.
Perform the Memory/Heated System Verification Test - Ver 1.
All
3
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
411
All
MEMORY SEAT
HORIZONTAL SENSOR OUT OF RANGE HIGH —
Continued
TEST
ACTION
APPLICABILITY
4
Ensure all seat and sensor connectors are connected and front riser motor is
operational.
With the DRB III select: 9Body9 9Memory Seat9 9Sensors9
Monitor the Horizontal Position sensor while operating the seat horizontally to both
limits.
Did the voltage ever go above 7.0 volts ONLY when the motor was in operation?
All
5
6
7
8
Yes
→ Replace the Seat Track Assembly (defective sensor).
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
5
Disconnect the Driver Power Seat Horizontal Position Sensor connector
Turn ignition on.
Measure the voltage between the Seat Sensor 5 volt supply circuit and ground.
Is the voltage above 5.5 volts?
Yes
→ Repair the seat sensor 5 volt supply ckt for a short to battery.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
6
Disconnect the Memory Seat Module 9C19 connector.
Disconnect the Driver Power Seat Horizontal Position Sensor connector.
Turn ignition on.
Measure the voltage between Seat Horizontal Position Signal circuit and ground.
Is there ANY voltage on the Seat Horizontal Position Signal circuit?
No
→ Go To
Yes
→ Repair the Horizontal Position Signal ckt for a short to voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
All
7
Turn ignition off.
Disconnect the Driver Power Seat Horizontal Position Sensor connector
Ensure the Memory Seat Module is fully connected before proceeding.
Turn ignition on.
With the DRB III select: 9Body9 9Memory Seat9 9Sensors9
Read the 9Horizontal Position Sensor9 voltage
Is the voltage above 0.2 volts?
Yes
→ Go To
No
→ Replace the Seat Track Assy (sensor defective).
Perform the Memory/Heated System Verification Test - Ver 1.
All
8
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
412
All
MEMORY SEAT
Symptom:
HORIZONTAL SENSOR OUT OF RANGE LOW
When Monitored and Set Condition:
HORIZONTAL SENSOR OUT OF RANGE LOW
When Monitored:
Ignition on.
Set Condition: This condition is immediately set when the seat motor potentiometer
feeds a value lower than the Memory Heated Seat/Mirror Module has stored in EEPROM.
POSSIBLE CAUSES
SEAT SENSOR 5 V SUPPLY SHT GND
SEAT SENSOR 5 VOLT SUPPLY OPEN
HORIZONTAL SENSOR DEFECTIVE (LOW)
HORIZONTAL POS SIGNAL CKT SHORT TO GROUND
SEAT HORIZONTAL POSITION SIGNAL CKT OPEN
MEMORY HEATED SEAT/MIRROR MODULE
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
3
ACTION
Ensure the Memory Seat Module is fully connected before proceeding.
Disconnect the Driver Power Seat Horizontal Sensor connector.
Turn ignition on.
Measure the voltage of the Seat Sensor 5 Volt Supply circuit.
Is the voltage above 4.5 volts?
No
→ Go To
2
Yes
→ Go To
5
Disconnect the Memory Heated Seat/Mirror Module 9C29 connector.
Turn ignition off.
Measure the resistance of the Seat Sensor 5 Volt Supply circuit to ground.
Is the resistance below 100.0 ohms?
Yes
→ Repair the Seat Sensor 5 Volt Supply for a short to Ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
All
All
3
Disconnect the Driver Power Seat Horizontal Position Sensor connector.
Disconnect the Memory Heated Seat/Mirror Module 9C29 connector.
Turn ignition off.
Measure the resistance of the Seat Sensor 5 Volt Supply circuit between the Sensor
connector and the Module connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Seat Sensor 5 Volt Supply circuit.
Perform the Memory/Heated System Verification Test - Ver 1.
4
413
All
MEMORY SEAT
HORIZONTAL SENSOR OUT OF RANGE LOW —
TEST
4
Continued
ACTION
If there are no possible causes remaining, view 9Repair9.
APPLICABILITY
All
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
5
6
7
8
Turn ignition off.
Disconnect the Driver Power Seat Horizontal Sensor connector.
Connect a jumper wire between Seat Sensor 5 Volt Supply and Seat Horizontal
Position Signal circuits.
Ensure the Memory Seat Module is fully connected before proceeding.
With the DRB III select: 9Body9 9Memory Seat9 9Sensors9
Turn ignition on.
Read the 9Horizontal Position Sensor9 voltage
Is the voltage above 4.5 volts?
Yes
→ Replace the Seat Track Assy (sensor defective).
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
6
Turn ignition off.
Disconnect the Memory Seat Module 9C19 connector.
Disconnect the Driver Power Seat Horizontal Sensor connector.
Measure the resistance of the Seat Horizontal Position Signal circuit to ground.
Is the resistance below 1000 (1 K) ohms?
Yes
→ Repair the Seat Horizontal Position Signal Ckt for a short to
ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
7
Turn ignition off.
Disconnect the Memory Seat Module 9C19 connector.
Disconnect the Driver Power Seat Horizontal Sensor connector.
Measure the resistance of the Seat Horizontal Position Signal circuit between the
Sensor connector and the Module connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Seat Horizontal Position Signal circuit.
Perform the Memory/Heated System Verification Test - Ver 1.
All
8
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
414
All
MEMORY SEAT
Symptom:
MEMORY POSITION #1 STUCK
When Monitored and Set Condition:
MEMORY POSITION #1 STUCK
When Monitored:
Ignition on.
Set Condition: If the swtch is active for 30 seconds the MHSMM will ignore the input
until the state has changed. Once the stuck position is removed the seat will return to
normal operation. The code will remain in memory for 20 ignition cycles.
POSSIBLE CAUSES
MEMORY POSITION 1 SWITCH SENSE CIRCUIT SHORT TO GROUND
MEMORY SET SWITCH
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
3
ACTION
Disconnect the Memory Set Switch connector.
With the DRBIIIt, read the 9Mem Pos 1 Sw9 status.
Does the DRBIIIt display 9Open9?
Yes
→ Replace the Memory Set Switch.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
2
Turn the ignition off.
Disconnect the Memory Set Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the resistance of the Memory Position 1 Switch Sense circuit to ground.
Is the resistance below 1000.0 (1K) ohms?
Yes
→ Repair the Memory Position 1 Switch Sense circuit for a short to
ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
3
If there are no possible causes remaining, replace the Memory Heated Seat/Mirror
Module.
View repair options.
Yes
APPLICABILITY
→ Rep;lace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
415
All
MEMORY SEAT
Symptom:
MEMORY POSITION #2 STUCK
When Monitored and Set Condition:
MEMORY POSITION #2 STUCK
When Monitored:
Ignition on.
Set Condition: If the swtch is active for 30 seconds the MHSMM will ignore the input
until the state has changed. Once the stuck position is removed the seat will return to
normal operation. The code will remain in memory for 20 ignition cycles.
POSSIBLE CAUSES
MEMORY POSITION 2 SWITCH SENSE CIRCUIT SHORT TO GROUND
MEMORY SET SWITCH
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
3
ACTION
Disconnect the Memory Set Switch connector.
With the DRBIIIt, read the 9Mem Pos 2 Sw9 status.
Does the DRBIIIt display 9Open9?
Yes
→ Replace the Memory Set Switch.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
2
Turn the ignition off.
Disconnect the Memory Set Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the resistance of the Memory Position 2 Switch Sense circuit to ground.
Is the resistance below 1000.0 (1K) ohms?
Yes
→ Repair the Memory Position 2 Switch Sense circuit for a short to
ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
3
If there are no possible causes remaining, replace the Memory Heated Seat/Mirror
Module.
View repair options.
Yes
APPLICABILITY
→ Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
416
All
MEMORY SEAT
Symptom:
MEMORY SET (S( POSITION STUCK
When Monitored and Set Condition:
MEMORY SET (S( POSITION STUCK
When Monitored:
Ignition on.
Set Condition: If the swtch is active for 30 seconds the MHSMM will ignore the input
until the state has changed. Once the stuck position is removed the seat will return to
normal operation. The code will remain in memory for 20 ignition cycles.
POSSIBLE CAUSES
MEMORY SET SWITCH SENSE CIRCUIT SHORT TO GROUND
MEMORY SET SWITCH
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
3
ACTION
Disconnect the Memory Set Switch connector.
With the DRBIIIt, read the 9Mem Set Sw9 status.
Does the DRBIIIt display 9Open9?
Yes
→ Replace the Memory Set Switch.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
2
Turn the ignition off.
Disconnect the Memory Set Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the resistance of the Memory Set Switch Sense circuit to ground.
Is the resistance below 1000.0 (1K) ohms?
Yes
→ Repair the Memory Set Switch Sense circuit for a short to ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
3
If there are no possible causes remaining, replace the Memory Heated Seat/Mirror
Module.
View repair options.
Yes
APPLICABILITY
→ Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
417
All
MEMORY SEAT
Symptom:
PASSENGER MIRROR HORIZONTAL SENSOR OUT OF RANGE
HIGH
When Monitored and Set Condition:
PASSENGER MIRROR HORIZONTAL SENSOR OUT OF RANGE HIGH
When Monitored:
Ignition on.
Set Condition: This code is set when the mirror sensor feedback to the MHSMM is
greaters than the mirror out of range high value stored in EEPROM.
POSSIBLE CAUSES
PASSENGER MIRROR HORIZONTAL POSITION SIGNAL WIRE SHORT TO VOLTAGE
PASSENGER MEMORY MIRROR
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
3
ACTION
Turn the ignition on.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the voltage of the Passenger Mirror Horizontal Position Signal circuit.
Is the voltage above 4.5 volts?
Yes
→ Go To
No
→ Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
APPLICABILITY
All
2
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Disconnect the Passenger Power Mirror connector.
Turn the ignition on.
Measure the voltage of the Passenger Horizontal Position Signal circuit in the
passenger power mirror (harness side) connector.
Is there any voltage present?
Yes
→ Repair the Passenger Mirror Horizontal Position Signal wire for
a short to voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
3
View repair options.
All
Repair
If there are no possible causes remaining, replace the Passenger
Memory Mirror.
Perform the Memory/Heated System Verification Test - Ver 1.
418
MEMORY SEAT
Symptom:
PASSENGER MIRROR HORIZONTAL SENSOR OUT OF RANGE
LOW
When Monitored and Set Condition:
PASSENGER MIRROR HORIZONTAL SENSOR OUT OF RANGE LOW
When Monitored:
Ignition on.
Set Condition: This code is set when the mirror sensor feedback to the MHSMM is less
than the mirror out of range low value stored in EEPROM.
POSSIBLE CAUSES
PASSENGER MIRROR HORIZONTAL POSITI0ON SIGNAL WIRE SHORT TO GROUND
PASSENGER MEMORY MIRROR
MEMORY HEATED SEAT/MIRROR MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the resistance of the Passenger Mirror Horizontal Position Signal circuit to
ground.
Is the resistance below 0.7 ohms?
All
2
3
Yes
→ Go To
No
→ Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
2
Turn the ignition off.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Disconnect the Passenger Power Mirror connector.
Measure the resistance of the Passenger Horizontal Position Signal circuit to ground
at the passenger power mirror (harness side) connector.
Is the resistance below 1000.0 ohms?
Yes
→ Repair the Passenger Mirror Horizontal Position Signal wire for
a short to ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
3
View repair options.
All
Repair
If there are no possible causes remaining, replace the Passenger
Memory Mirror.
Perform the Memory/Heated System Verification Test - Ver 1.
419
MEMORY SEAT
Symptom:
PASSENGER MIRROR VERTICAL SENSOR OUT OF RANGE HIGH
When Monitored and Set Condition:
PASSENGER MIRROR VERTICAL SENSOR OUT OF RANGE HIGH
When Monitored:
Ignition on.
Set Condition: This code is set when the mirror sensor feedback to the MHSMM is
greater than the mirror out of range high value stored in EEPROM.
POSSIBLE CAUSES
PASSENGER MIRROR VERTICAL POSITION SIGNAL WIRE SHORT TO VOLTAGE
PASSENGER MEMORY MIRROR
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
3
ACTION
Turn the ignition on.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the voltage of the Passenger Mirror Vertical Position Signal circuit.
Is the voltage above 4.5 volts?
Yes
→ Go To
No
→ Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
APPLICABILITY
All
2
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Disconnect the Passenger Power Mirror connector.
Turn the ignition on.
Measure the voltage of the Passenger Vertical Position Signal circuit in the
passenger power mirror (harness side) connector.
Is there any voltage present?
Yes
→ Repair the Passenger Mirror Vertical Position Signal wire for a
short to voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
3
View repair options.
All
Repair
If there are no possible causes remaining, replace the Passenger
Memory Mirror.
Perform the Memory/Heated System Verification Test - Ver 1.
420
MEMORY SEAT
Symptom:
PASSENGER MIRROR VERTICAL SENSOR OUT OF RANGE LOW
When Monitored and Set Condition:
PASSENGER MIRROR VERTICAL SENSOR OUT OF RANGE LOW
When Monitored:
Ignition on.
Set Condition: This code is set when the mirror sensor feedback to the MHSMM is less
than the mirror out of range low value stored in EEPROM.
POSSIBLE CAUSES
PASSENGER MIRROR VERTICAL POSITION SIGNAL WIRE SHORT TO GROUND
PASSENGER MEMORY MIRROR
MEMORY HEATED SEAT/MIRROR MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the resistance of the Passenger Mirror Vertical Position Signal circuit to
ground.
Is the resistance below 0.7 ohms?
All
2
3
Yes
→ Go To
No
→ Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
2
Turn the ignition off.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Disconnect the Passenger Power Mirror connector.
Measure the resistance of the Passenger Vertical Position Signal circuit to ground at
the passenger power mirror (harness side) connector.
Is the resistance below 1000.0 ohms?
Yes
→ Repair the Passenger Mirror Vertical Position Signal wire for a
short to ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
3
View repair options.
All
Repair
If there are no possible causes remaining, replace the Passenger
Memory Mirror.
Perform the Memory/Heated System Verification Test - Ver 1.
421
MEMORY SEAT
Symptom:
REAR RISER DOWN POSITION STUCK
When Monitored and Set Condition:
REAR RISER DOWN POSITION STUCK
When Monitored:
Ignition on.
Set Condition: If the seat switch is active for 30 seconds, this code will set and the
MHSMM will ignore the input until the state has changed. Once the stuck condition is
removed, the seat will resume to normal operation. Code will remain for 20 ignition cycles.
POSSIBLE CAUSES
SEAT REAR DOWN SWITCH SENSE WIRE SHORT TO VOLTAGE
DRIVER POWER SEAT SWITCH
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
3
ACTION
Disconnect the Power Seat Switch connector.
Measure the voltage of the Seat Rear Down Switch Sense circuit.
Is there any voltage present?
Yes
→ Go To
No
→ Replace the Power Seat Switch.
Perform the Memory/Heated System Verification Test - Ver 1.
APPLICABILITY
All
2
Disconnect the Power Seat Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Turn the ignition on.
Measure the voltage of the Seat Rear Down Switch Sense circuit to ground..
Is there any voltage present?
Yes
→ Repair the Seat Rear Down Switch Sense wire for a short to
voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
3
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
422
All
MEMORY SEAT
Symptom:
REAR RISER SENSOR OUT OF RANGE HIGH
When Monitored and Set Condition:
REAR RISER SENSOR OUT OF RANGE HIGH
When Monitored:
Ignition on.
Set Condition: This condition is immediately set when the seat motor potentiometer
feeds a value higher than the Memory Heated Seat/Mirror Module has stored in EEPROM.
POSSIBLE CAUSES
SEAT SENSOR GROUND WIRE OPEN
REAR RISER SENSOR DEFECTIVE HIGH
CHECKING REAR RISER POS SIG SHORT TO VOLTAGE
SEAT SENSOR 5 VOLT SUPPLY SHORT TO BATTERY
REAR RISER POSITION SIGNAL SHORT TO MOTOR
MEMORY HEATED SEAT/MIRROR MODULE
MEMORY HEATED SEAT/MIRROR MODULE
TEST
ACTION
APPLICABILITY
1
Turn ignition off.
Disconnect the Driver Power Seat Rear Riser Sensor connector.
Measure the resistance of the Seat Position Sensor Ground circuit at the driver
power seat rear riser connector.
Is the resistance below 5.0 ohms?
All
2
3
No
→ Go To
2
Yes
→ Go To
4
Turn ignition off.
Disconnect the Memory Heated Seat/Mirror Module 9C29 connector.
Disconnect the Driver Power Seat Rear Riser Sensor connector.
Measure the resistance of the Seat Position Sensor Ground wire between the MSM
connector and the sensor connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Seat Position Sensor Ground Wire.
Perform the Memory/Heated System Verification Test - Ver 1.
All
3
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
423
All
MEMORY SEAT
REAR RISER SENSOR OUT OF RANGE HIGH —
Continued
TEST
ACTION
APPLICABILITY
4
Ensure all seat and sensor connectors are connected and front riser motor is
operational.
With the DRB III select: 9Body9 9Memory Seat9 9Sensors9
Monitor the Rear Riser Position sensor while operating the seat rear riser to both
limits.
Did the voltage ever go above 8.0 volts ONLY when the motor was in operation?
All
5
6
7
8
Yes
→ Replace the Seat Track Assembly (defective sensor).
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
5
Disconnect the Memory Seat Module 9C19 connector.
Disconnect the Driver Power Seat Rear Riser Sensor connector.
Turn ignition on.
Measure the voltage between Rear Riser Position Signal circuit and ground.
Is there ANY voltage on the Rear Riser Position Signal circuit?
No
→ Go To
Yes
→ Repair the Rear Riser Position Signal ckt for a short to voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
All
6
Disconnect the Driver Power Seat Rear Riser Sensor connector.
Turn ignition on.
Measure the voltage between the Seat Sensor 5 volt supply circuit and ground.
Is the voltage above 5.5 volts?
Yes
→ Repair the seat sensor 5 volt supply ckt for a short to battery.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
7
Turn ignition off.
Disconnect the Driver Power Seat Rear Riser Sensor connector.
Ensure the Memory Seat Module is fully connected before proceeding.
Turn ignition on.
With the DRB III select: 9Body9 9Memory Seat9 9Sensors9
Read the 9Rear Riser Position Sensor9 voltage
Is the voltage above 0.2 volts?
Yes
→ Go To
No
→ Replace the Seat Track Assy (Rear Riser defective).
Perform the Memory/Heated System Verification Test - Ver 1.
All
8
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Seat Module (internal defect).
Perform the Memory/Heated System Verification Test - Ver 1.
424
All
MEMORY SEAT
Symptom:
REAR RISER SENSOR OUT OF RANGE LOW
When Monitored and Set Condition:
REAR RISER SENSOR OUT OF RANGE LOW
When Monitored:
Ignition on.
Set Condition: This condition is immediately set when the seat motor potentiometer
feeds a value lower than the Memory Heated Seat/Mirror Module has stored in EEPROM.
POSSIBLE CAUSES
REAR RISER POS SIGNAL CKT SHORT TO GROUND
REAR RISER POSITION SIGNAL CKT OPEN
SEAT SENSOR 5 V SUPPLY SHORT TO GROUND
SEAT SENSOR 5 VOLT SUPPLY OPEN
REAR RISER SENSOR DEFECTIVE (LOW)
MEMORY HEATED SEAT/MIRROR MODULE
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
3
ACTION
Ensure the Memory Seat Module is fully connected before proceeding.
Disconnect the Driver Power Seat Rear Riser Sensor connector.
Turn ignition on.
Measure the voltage of the Seat Sensor 5 Volt Supply circuit.
Is the voltage above 4.5 volts?
No
→ Go To
2
Yes
→ Go To
5
Turn ignition off.
Disconnect the Memory Heated Seat/Mirror Module 9C29 connector.
Measure the resistance of the Seat Sensor 5 Volt Supply circuit to ground.
Is the resistance below 100.0 ohms?
Yes
→ Repair the Seat Sensor 5 Volt Supply for a short to Ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
All
All
3
Disconnect the Driver Power Seat Rear Riser Sensor connector.
Disconnect the Memory Heated Seat/Mirror Module 9C29 connector.
Turn ignition off.
Measure the resistance of the Seat Sensor 5 Volt Supply circuit between the Sensor
connector and the Module connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Seat Sensor 5 Volt Supply circuit.
Perform the Memory/Heated System Verification Test - Ver 1.
4
425
All
MEMORY SEAT
REAR RISER SENSOR OUT OF RANGE LOW —
TEST
4
Continued
ACTION
If there are no possible causes remaining, view 9Repair9.
APPLICABILITY
All
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
5
6
7
8
Turn ignition off.
Disconnect the Driver Power Seat Rear Riser Sensor connector.
Connect a jumper wire between Seat Sensor 5 Volt Supply and Rear Riser Position
Signal circuits.
Ensure the Memory Seat Module is fully connected before proceeding.
With the DRB III select: 9Body9 9Memory Seat9 9Sensors9
Turn ignition on.
Read the 9Rear Riser Position Sensor9 voltage
Is the voltage above 4.5 volts?
Yes
→ Replace the Seat Track Assy (riser sensor defective).
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
6
Turn ignition off.
Disconnect the Memory Seat Module 9C19 connector.
Disconnect the Driver Power Seat Rear Riser Sensor connector.
Measure the resistance of the Rear Riser Position Signal circuit to ground.
Is the resistance below 1000 (1 K) ohms?
Yes
→ Repair the Rear Riser Position Signal Ckt for a short to ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
7
Turn ignition off.
Disconnect the Memory Seat Module 9C19 connector.
Disconnect the Driver Power Seat Rear Riser Sensor connector.
Measure the resistance of the Rear Riser Position Signal circuit between the Sensor
connector and the Module connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Rear Riser Position Signal circuit.
Perform the Memory/Heated System Verification Test - Ver 1.
All
8
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
426
All
MEMORY SEAT
Symptom:
REAR RISER UP POSITION STUCK
When Monitored and Set Condition:
REAR RISER UP POSITION STUCK
When Monitored:
Ignition on.
Set Condition: If the seat switch is active for 30 seconds, this code will set and the
MHSMM will ignore the input until the state has changed. Once the stuck condition is
removed, the seat will resume to normal operation. Code will remain for 20 ignition cycles.
POSSIBLE CAUSES
SEAT REAR UP SWITCH SENSE WIRE SHORT TO VOLTAGE
DRIVER POWER SEAT SWITCH
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
3
ACTION
Disconnect the Power Seat Switch connector.
Measure the voltage of the Seat Rear Up Switch Sense circuit.
Is there any voltage present?
Yes
→ Go To
No
→ Replace the Power Seat Switch.
Perform the Memory/Heated System Verification Test - Ver 1.
APPLICABILITY
All
2
Disconnect the Power Seat Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Turn the ignition on.
Measure the voltage of the Seat Rear Up Switch Sense circuit to ground..
Is there any voltage present?
Yes
→ Repair the Seat Rear Up Switch Sense wire for a short to voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
3
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
427
All
MEMORY SEAT
Symptom:
RECLINER DOWN POSITION STUCK
When Monitored and Set Condition:
RECLINER DOWN POSITION STUCK
When Monitored:
Ignition on.
Set Condition: If the seat switch is active for 30 seconds, this code will set and the
MHSMM will ignore the input until the state has changed. Once the stuck condition is
removed, the seat will resume to normal operation. Code will remain for 20 ignition cycles.
POSSIBLE CAUSES
SEAT RECLINER DOWN SWITCH SENSE WIRE SHORT TO VOLTAGE
DRIVER POWER SEAT SWITCH
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
3
ACTION
Disconnect the Power Seat Switch connector.
Measure the voltage of the Recliner Down Switch Sense circuit.
Is there any voltage present?
Yes
→ Go To
No
→ Replace the Power Seat Switch.
Perform the Memory/Heated System Verification Test - Ver 1.
APPLICABILITY
All
2
Disconnect the Power Seat Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Turn the ignition on.
Measure the voltage of the Recliner Down Switch Sense circuit to ground..
Is there any voltage present?
Yes
→ Repair the Recliner Down Switch Sense wire for a short to
voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
3
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
428
All
MEMORY SEAT
Symptom:
RECLINER SENSOR OUT OF RANGE HIGH
When Monitored and Set Condition:
RECLINER SENSOR OUT OF RANGE HIGH
When Monitored:
Ignition on.
Set Condition: This condition is immediately set when the seat motor potentiometer
feeds a value higher than the Memory Heated Seat/Mirror Module has stored in EEPROM.
POSSIBLE CAUSES
SEAT SENSOR GROUND WIRE OPEN
RECLINER POSITION SIGNAL SHORT TO VOLTAGE
RECLINER POSITION SENSOR DEFECTIVE HIGH
RECLINER POSITION SIGNAL SHORT TO MOTOR
SEAT SENSOR 5 VOLT SUPPLY SHORT TO BATTERY
MEMORY HEATED SEAT/MIRROR MODULE
MEMORY HEATED SEAT/MIRROR MODULE
TEST
ACTION
APPLICABILITY
1
Turn ignition off.
Disconnect the Driver Power Seat Recliner Sensor connector.
Measure the resistance of the Seat Position Sensor Ground circuit to body ground.
Is the resistance below 5.0 ohms?
All
2
3
No
→ Go To
2
Yes
→ Go To
4
Turn ignition off.
Disconnect the Memory Heated Seat/Mirror Module 9C29 connector.
Disconnect the Driver Power Seat Recliner Sensor connector.
Measure the resistance of the Seat Position Sensor Ground wire between the MSM
connector and the sensor connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Seat Position Sensor Ground Wire.
Perform the Memory/Heated System Verification Test - Ver 1.
All
3
If there are no possible causes remaining, replace the Memory Heated Seat/Mirror
Module.
View repair options.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
429
All
MEMORY SEAT
RECLINER SENSOR OUT OF RANGE HIGH —
Continued
TEST
ACTION
APPLICABILITY
4
Ensure all seat and sensor connectors are connected and recliner motor is operational.
With the DRB III select: 9Body9 9Memory Seat9 9Sensors9
Monitor the Recliner Position sensor while operating the seat Recliner to both limits.
Did the voltage ever go above 7.0 volts ONLY when the motor was in operation?
All
5
6
7
8
Yes
→ Replace the Seat Track Assembly (defective sensor).
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
5
Disconnect the Memory Seat Module 9C19 connector.
Disconnect the Driver Power Seat Recliner Sensor connector.
Turn ignition on.
Measure the voltage between Recliner Position Signal circuit and ground.
Is there ANY voltage on the Recliner Position Signal circuit?
No
→ Go To
Yes
→ Repair the Recliner Position Signal ckt for a short to voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
All
6
Disconnect the Driver Power Seat Recliner Sensor connector.
Turn ignition on.
Measure the voltage between the Seat Sensor 5 volt supply circuit and ground.
Is the voltage above 5.5 volts?
Yes
→ Repair the seat sensor 5 volt supply ckt for a short to battery.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
7
Turn ignition off.
Disconnect the Driver Power Seat Recliner Position Sensor connector
Ensure the Memory Seat Module is fully connected before proceeding.
Turn ignition on.
With the DRB III select: 9Body9 9Memory Seat9 9Sensors9
Read the 9Recliner Position Sensor9 voltage
Is the voltage above 0.2 volts?
Yes
→ Go To
No
→ Replace the Seat Track Assy (recliner sensor defective).
Perform the Memory/Heated System Verification Test - Ver 1.
All
8
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
430
All
MEMORY SEAT
Symptom:
RECLINER SENSOR OUT OF RANGE LOW
When Monitored and Set Condition:
RECLINER SENSOR OUT OF RANGE LOW
When Monitored:
Ignition on.
Set Condition: This condition is immediately set when the seat motor potentiometer
feeds a value lower than the Memory Heated Seat/Mirror Module has stored in EEPROM.
POSSIBLE CAUSES
RECLINER POSITION SIGNAL CKT OPEN
RECLINER POSITION SIGNAL CKT SHORT TO GROUND
SEAT SENSOR 5 V SUPPLY SHORT TO GROUND
SEAT SENSOR 5 VOLT SUPPLY OPEN
DEFECTIVE RECLINER POSITION SENSOR (LOW)
MEMORY HEATED SEAT/MIRROR MODULE
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
3
ACTION
Ensure the Memory Seat Module is fully connected before proceeding.
Disconnect the Driver Power Seat Recliner Sensor connector.
Turn ignition on.
Measure the voltage of the Seat Sensor 5 Volt Supply circuit.
Is the voltage above 4.5 volts?
No
→ Go To
2
Yes
→ Go To
5
Turn ignition off.
Disconnect the Memory Heated Seat/Mirror Module 9C29 connector.
Measure the resistance of the Seat Sensor 5 Volt Supply circuit to ground.
Is the resistance below 100.0 ohms?
Yes
→ Repair the Seat Sensor 5 Volt Supply for a short to Ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
All
All
3
Disconnect the Recliner Position Sensor connector.
Disconnect the Memory Heated Seat/Mirror Module 9C29 connector.
Turn ignition off.
Measure the resistance of the Seat Sensor 5 Volt Supply circuit between the Sensor
connector and the Module connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Seat Sensor 5 Volt Supply circuit.
Perform the Memory/Heated System Verification Test - Ver 1.
4
431
All
MEMORY SEAT
RECLINER SENSOR OUT OF RANGE LOW —
Continued
TEST
ACTION
APPLICABILITY
4
If there are no possible causes remaining, replace the Memory Heated Seat/Mirror
Module.
View repair options.
All
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
5
6
7
8
Turn ignition off.
Disconnect the Memory Seat Module 9C19 connector.
Disconnect the Driver Power Seat Recliner Sensor connector.
Measure the resistance of the Recliner Position Signal circuit to ground.
Is the resistance below 1000 (1 K) ohms?
Yes
→ Repair the Recliner Position Signal Ckt for a short to ground.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
6
Turn ignition off.
Disconnect the Memory Seat Module 9C19 connector.
Disconnect the Recliner Position Sensor connector.
Measure the resistance of the Recliner Position Signal circuit between the Sensor
connector and the Module connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Recliner Position Signal circuit.
Perform the Memory/Heated System Verification Test - Ver 1.
All
7
Turn ignition off.
Disconnect the Driver Power Seat Recliner Sensor connector.
Connect a jumper wire between Seat Sensor 5 Volt Supply and Recliner Position
Signal circuits.
Ensure the Memory Seat Module is fully connected before proceeding.
With the DRB III select: 9Body9 9Memory Seat9 9Sensors9
Turn ignition on.
Read the 9Recliner Position Sensor9 voltage
Is the voltage above 4.5 volts?
Yes
→ Replace the Seat Track Assy (riser sensor defective).
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
8
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
432
All
MEMORY SEAT
Symptom:
RECLINER UP POSITION STUCK
When Monitored and Set Condition:
RECLINER UP POSITION STUCK
When Monitored:
Ignition on.
Set Condition: If the seat switch is active for 30 seconds, this code will set and the
MHSMM will ignore the input until the state has changed. Once the stuck condition is
removed, the seat will resume to normal operation. Code will remain for 20 ignition cycles.
POSSIBLE CAUSES
RECLINER UP SWITCH SENSE WIRE SHORT TO VOLTAGE
DRIVER POWER SEAT SWITCH
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
3
ACTION
Disconnect the Power Seat Switch connector.
Measure the voltage of the Recliner Up Switch Sense circuit.
Is there any voltage present?
Yes
→ Go To
No
→ Replace the Power Seat Switch.
Perform the Memory/Heated System Verification Test - Ver 1.
APPLICABILITY
All
2
Disconnect the Power Seat Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Turn the ignition on.
Measure the voltage of the Recliner Up Switch Sense circuit to ground..
Is there any voltage present?
Yes
→ Repair the Recliner Up Switch Sense wire for a short to voltage.
Perform the Memory/Heated System Verification Test - Ver 1.
No
→ Go To
All
3
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
433
All
MEMORY SEAT
Symptom:
*DRIVER MIRROR INOPERATIVE FROM MEMORY
POSSIBLE CAUSES
DRIVER MIRROR LEFT DRIVER CIRCUIT OPEN
DRIVER MIRROR-COMMON DRIVER CIRCUIT OPEN
DRIVER MIRROR-UP DRIVER CIRCUIT OPEN
MEMORY HEATED SEAT/MIRROR MODULE
TEST
ACTION
APPLICABILITY
1
Note: If the seat is unbolted for testing, connect a jumper wire from the seat
frame to a known good ground.
Turn the ignition off.
Disconnect memory heated seat/mirror module harness connector C2.
Turn the ignition on.
While pressing the driver mirror switch to the left position, measure the voltage of
the driver mirror left driver circuit in memory heated seat/mirror module connector
C2.
Is the voltage above 10.0 volts when the switch is pressed?
All
2
3
Yes
→ Go To
No
→ Repair the driver mirror left driver circuit for an open.
Perform the Memory/Heated System Verification Test - Ver 1.
2
Note: If the seat is unbolted for testing, connect a jumper wire from the seat
frame to a known good ground.
Turn the ignition off.
Disconnect memory heated seat/mirror module harness connector C2.
Turn the ignition on.
While pressing the driver mirror switch to the down position, measure the voltage of
the driver mirror common driver circuit in memory heated seat/mirror module
connector C2.
Is the voltage above 10.0 volts when the switch is pressed?
Yes
→ Go To
No
→ Repair the driver mirror common driver circuit for an open.
Perform the Memory/Heated System Verification Test - Ver 1.
All
3
Note: If the seat is unbolted for testing, connect a jumper wire from the seat
frame to a known good ground.
Turn the ignition off.
Disconnect memory heated seat/mirror module harness connector C2.
Turn the ignition on.
While pressing the driver mirror switch to the up position, measure the voltage of the
driver mirror up driver circuit in memory heated seat/mirror module connector C2.
Is the voltage above 10.0 volts when the switch is pressed?
Yes
→ Go To
No
→ Repair the driver mirror up driver circuit for an open.
Perform the Memory/Heated System Verification Test - Ver 1.
4
434
All
MEMORY SEAT
*DRIVER MIRROR INOPERATIVE FROM MEMORY —
TEST
4
Continued
ACTION
View repair options.
APPLICABILITY
All
Repair
If there are no possible causes remaining, replace the Memory
Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
435
MEMORY SEAT
Symptom:
*MEMORY SWITCH INOPERATIVE
POSSIBLE CAUSES
GROUND CIRCUIT OPEN
MEMORY POSITION 1 SWITCH SENSE WIRE OPEN
MEMORY POSITION 2 SWITCH SENSE CIRCUIT OPEN
MEMORY SET SWITCH SENSE WIRE OPEN
MEMORY SET SWITCH
MEMORY HEATED SEAT/MIRROR MODULE
MEMORY HEATED SEAT/MIRROR MODULE
MEMORY HEATED SEAT/MIRROR MODULE
TEST
1
2
3
4
ACTION
Disconnect the Memory Set Switch connector.
Turn the ignition off.
Measure the resistance of the Ground circuit.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open ground circuit.
Perform the Memory/Heated System Verification Test - Ver 1.
APPLICABILITY
All
2
Disconnect the Memory Set Switch connector.
Measure the voltage of the Memory Position 1 Switch Sense circuit at the Memory
Set Switch connector.
Is the voltage above 0.5 volts?
Yes
→ Go To
3
No
→ Go To
9
Disconnect the Memory Set Switch connector.
Measure the voltage of the Memory Position 2 Switch Sense circuit at the Memory
Set Switch connector.
Is the voltage above 0.5 volts?
Yes
→ Go To
4
No
→ Go To
6
Disconnect the Memory Set Switch connector.
Measure the voltage of the Memory Set Switch Sense circuit.
Is the voltage above 0.5 volts?
Yes
→ Go To
5
No
→ Go To
17
436
All
All
All
MEMORY SEAT
*MEMORY SWITCH INOPERATIVE —
TEST
5
Continued
ACTION
If there are no possible causes remaining, replace the Memory Set Switch.
View repair options.
APPLICABILITY
All
Repair
Replace the Memory Set Switch.
Perform the Memory/Heated System Verification Test - Ver 1.
6
7
8
9
10
Turn the ignition off.
Disconnect the Memory Set Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the resistance of the Memory Position 2 Switch Sense wire between the
MHSMM connector and the Memory Set Switch connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Memory Position 2 Switch Sense wire.
Perform the Memory/Heated System Verification Test - Ver 1.
All
7
Disconnect the Memory Set Switch connector.
Measure the voltage of the Memory Set Switch Sense circuit.
Is the voltage above 0.5 volts?
Yes
→ Go To
16
No
→ Go To
8
Turn the ignition off.
Disconnect the Memory Set Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the resistance of the Memory Set Switch Sense wire between the MHSMM
connector and the Memory Set Switch connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Memory Set Switch Sense wire.
Perform the Memory/Heated System Verification Test - Ver 1.
All
All
16
Turn the ignition off.
Disconnect the Memory Set Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the resistance of the Memory Position 1 Switch Sense wire between the
MHSMM connector and the Memory Set Switch connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Memory Position 1 Switch Sense wire.
Perform the Memory/Heated System Verification Test - Ver 1.
All
10
Disconnect the Memory Set Switch connector.
Measure the voltage of the Memory Position 2 Switch Sense circuit at the Memory
Set Switch connector.
Is the voltage above 0.5 volts?
Yes
→ Go To
11
No
→ Go To
14
437
All
MEMORY SEAT
*MEMORY SWITCH INOPERATIVE —
TEST
11
12
13
Continued
ACTION
Disconnect the Memory Set Switch connector.
Measure the voltage of the Memory Set Switch Sense circuit.
Is the voltage above 0.5 volts?
Yes
→ Go To
13
No
→ Go To
12
Turn the ignition off.
Disconnect the Memory Set Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the resistance of the Memory Set Switch Sense wire between the MHSMM
connector and the Memory Set Switch connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Memory Set Switch Sense wire.
Perform the Memory/Heated System Verification Test - Ver 1.
APPLICABILITY
All
All
13
If there are no possible causes remaining, replace the Memory Heated Seat/Mirror
Module.
View repair options.
All
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
14
15
16
Turn the ignition off.
Disconnect the Memory Set Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the resistance of the Memory Position 2 Switch Sense wire between the
MHSMM connector and the Memory Set Switch connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Memory Position 2 Switch Sense wire.
Perform the Memory/Heated System Verification Test - Ver 1.
All
15
Disconnect the Memory Set Switch connector.
Measure the voltage of the Memory Set Switch Sense circuit.
Is the voltage above 0.5 volts?
Yes
→ Go To
16
No
→ Go To
17
If there are no possible causes remaining, replace the Memory Heated Seat/Mirror
Module.
View repair options.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
438
All
All
MEMORY SEAT
*MEMORY SWITCH INOPERATIVE —
Continued
TEST
ACTION
APPLICABILITY
17
Turn the ignition off.
Disconnect the Memory Set Switch connector.
Disconnect the Memory Heated Seat/Mirror Module 9C19 connector.
Measure the resistance of the Memory Set Switch Sense wire between the MHSMM
connector and the Memory Set Switch connector.
Is the resistance below 5.0 ohms?
All
18
Yes
→ Go To
No
→ Repair the open Memory Set Switch Sense wire.
Perform the Memory/Heated System Verification Test - Ver 1.
18
If there are no possible causes remaining, replace the Memory Heated Seat/Mirror
Module.
View repair options.
Repair
Replace the Memory Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
439
All
MEMORY SEAT
Symptom:
*PASSENGER MIRROR INOPERATIVE FROM MEMORY
POSSIBLE CAUSES
PASSENGER MIRROR LEFT DRIVER CIRCUIT OPEN
PASSENGER MIRROR-COMMON DRIVER CIRCUIT OPEN
PASSENGER MIRROR-UP DRIVER CIRCUIT OPEN
MEMORY HEATED SEAT/MIRROR MODULE
TEST
ACTION
APPLICABILITY
1
Note: If the seat is unbolted for testing, connect a jumper wire from the seat
frame to a known good ground.
Turn the ignition off.
Disconnect memory heated seat/mirror module harness connector C2.
Turn the ignition on.
While pressing the passenger mirror switch to the left position, measure the voltage
of the passenger mirror left driver circuit in memory heated seat/mirror module
connector C2.
Is the voltage above 10.0 volts when the switch is pressed?
All
2
3
Yes
→ Go To
No
→ Repair the passenger mirror left driver circuit for an open.
Perform the Memory/Heated System Verification Test - Ver 1.
2
Note: If the seat is unbolted for testing, connect a jumper wire from the seat
frame to a known good ground.
Turn the ignition off.
Disconnect memory heated seat/mirror module harness connector C2.
Turn the ignition on.
While pressing the passenger mirror switch to the down position, measure the
voltage of the passenger mirror common driver circuit in memory heated seat/mirror
module connector C2.
Is the voltage above 10.0 volts when the switch is pressed?
Yes
→ Go To
No
→ Repair the passenger mirror common driver circuit for an open.
Perform the Memory/Heated System Verification Test - Ver 1.
All
3
Note: If the seat is unbolted for testing, connect a jumper wire from the seat
frame to a known good ground.
Turn the ignition off.
Disconnect memory heated seat/mirror module harness connector C2.
Turn the ignition on.
While pressing the passenger mirror switch to the up position, measure the voltage
of the passenger mirror up driver circuit in memory heated seat/mirror module
connector C2.
Is the voltage above 10.0 volts when the switch is pressed?
Yes
→ Go To
No
→ Repair the passenger mirror up driver circuit for an open.
Perform the Memory/Heated System Verification Test - Ver 1.
4
440
All
MEMORY SEAT
*PASSENGER MIRROR INOPERATIVE FROM MEMORY —
TEST
4
ACTION
View repair options.
Press Repair to view repair options.
Continued
APPLICABILITY
All
Repair
If there are no possible causes remaining, replace the Memory
Heated Seat/Mirror Module.
Perform the Memory/Heated System Verification Test - Ver 1.
441
OVERHEAD CONSOLE
Symptom:
AMBIENT TEMPERATURE SENSOR FAILURE; OTIS OUTSIDE
TEMPERATURE SHOWS SC OR OC
POSSIBLE CAUSES
AMBIENT TEMP SENSOR GROUND CIRCUIT OPEN
AMBIENT TEMP SENSOR SIGNAL CIRCUIT OPEN
AMBIENT TEMP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
AMBIENT TEMP SENSOR SIGNAL CIRCUIT SHORTED TO SENSOR GROUND
AMBIENT TEMP SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
AMBIENT TEMP SENSOR INTERNALLY OPEN
AMBIENT TEMP SENSOR INTERNALLY SHORTED
BCM - AMBIENT TEMP SENSOR CIRCUIT OPEN
BCM - AMBIENT TEMP SENSOR SIGNAL SHORT TO GROUND
BCM - AMBIENT TEMP SENSOR SIGNAL SHORTED TO VOLTAGE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, enter 9Body Computer9, then 9Sensors9 and read the ambient
temperature sensor voltage.
Is the voltage below 0.2 volts?
All
2
3
Yes
→ Go To
2
No
→ Go To
6
Turn the ignition off.
Disconnect the Ambient Temperature Sensor harness connector.
Turn the ignition on.
Measure the voltage of the ambient temperature sensor signal circuit in the Ambient
Temperature Sensor harness connector.
Is the voltage approximately 5.0 volts?
Yes
→ Replace the Ambient Temperature Sensor.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
3
Turn the ignition off.
Disconnect the Ambient Temperature Sensor harness connector.
Disconnect the BCM C3 harness connector.
Measure the resistance between ground and the ambient temperature sensor signal
circuit in the Ambient Temperature Sensor harness connector.
Is the resistance below 50k ohms?
Yes
→ Repair the ambient temperature sensor signal circuit for a short
to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
442
All
OVERHEAD CONSOLE
AMBIENT TEMPERATURE SENSOR FAILURE; OTIS OUTSIDE TEMPERATURE SHOWS SC OR OC — Continued
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the Ambient Temperature Sensor harness connector.
Disconnect the BCM C3 harness connector.
Measure the resistance between the ambient temperature sensor signal circuit and
sensor ground circuit in the Ambient Temperature Sensor harness connector.
Is the resistance below 50k ohms?
All
5
Yes
→ Repair the ambient temperature sensor signal circuit for a short
to the sensor ground circuit.
Perform the Body Verification Test - Ver 1.
No
→ Go To
5
View repair options.
All
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
6
7
8
Turn the ignition off.
Disconnect the Ambient Temperature Sensor harness connector.
Turn the ignition on.
Measure the voltage of the ambient temperature sensor signal circuit in the Ambient
Temperature Sensor harness connector.
Is the voltage above 5.3 volts?
Yes
→ Go To
7
No
→ Go To
9
Turn the ignition off.
Disconnect the Ambient Temperature Sensor harness connector.
Disconnect the BCM C3 harness connector.
Measure the voltage of the ambient temperature sensor signal circuit in the Ambient
Temperature Sensor harness connector.
Is the voltage above 5.3 volts?
Yes
→ Repair the ambient temperature sensor signal circuit for a short
to voltage.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
All
8
View repair options.
All
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
443
OVERHEAD CONSOLE
AMBIENT TEMPERATURE SENSOR FAILURE; OTIS OUTSIDE TEMPERATURE SHOWS SC OR OC — Continued
TEST
ACTION
APPLICABILITY
9
Turn the ignition off.
Disconnect the Ambient Temperature Sensor harness connector.
Connect a jumper wire between cavity 1 and cavity 2 of the ambient temperature
sensor harness conector.
Turn the ignition on.
With the DRB, enter 9Body Computer9, then 9Sensors9 and read the ambient
temperature sensor voltage.
Is the voltage below 0.2 volts?
All
Yes
→ Replace the Ambient Temperature Sensor.
Perform the Body Verification Test - Ver 1.
No
→ Go To
10
Note: Disconnect the jumper wire.
10
11
12
Turn the ignition off.
Disconnect the Ambient Temperature Sensor harness connector.
Disconnect the BCM C3 harness connector.
Measure the resistance of the ambient temperature sensor signal circuit between the
ambient temperature sensor harness connector and the BCM C3 harness connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the ambient temperature sensor signal circuit for an open.
Perform the Body Verification Test - Ver 1.
All
11
Turn the ignition off.
Disconnect the Ambient Temperature Sensor harness connector.
Disconnect the BCM C3 harness connector.
Measure the resistance of the sensor ground circuit between the ambient temperature sensor harness connector and the BCM C3 harness connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the ambient temperature sensor ground circuit for an
open.
Perform the Body Verification Test - Ver 1.
All
12
View repair options.
All
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
444
OVERHEAD CONSOLE
Symptom:
*DISTANCE TO EMPTY INOPERATIVE OR WRONG
POSSIBLE CAUSES
DISTANCE TO EMPTY INOPERATIVE OR WRONG
TEST
1
ACTION
Verify the problem still exists.
Does the problem with distance to empty still exist?
Yes
→ Refer to the Instrument Cluster category for symptom(s) related
to the fuel level sending unit and the odometer.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
445
APPLICABILITY
All
OVERHEAD CONSOLE
Symptom:
*ELAPSED TIME INOPERATIVE OR WRONG
POSSIBLE CAUSES
BCM - ELAPSED TIME INOPERATIVE OR WRONG
TEST
1
ACTION
Verify the problem still exists.
Clear the current elapsed time from the OTIS.
Start the vehicle and monitor the elapsed time on the OTIS.
Is the elapsed time function still inoperative or wrong?
Yes
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
446
APPLICABILITY
All
OVERHEAD CONSOLE
Symptom:
*INCORRECT AMBIENT TEMPERATURE SENSOR READING
POSSIBLE CAUSES
BODY CONTROL MODULE
AMBIENT TEMP SENSOR GROUND CIRCUIT OPEN
SENSOR GROUND CIRCUIT SHORTED TO GROUND
AMBIENT TEMP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
AMBIENT TEMP SENSOR SIGNAL CIRCUIT SHORTED TO SENSOR GROUND
CHECKING AMBIENT TEMPERATURE SENSOR
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Disconnect the ambient temperature sensor harness connector
Remove the ambient temperature sensor.
Measure the resistance of the ambient temperature sensor.
Using the resistance/degrees chart compare the resistance reading to the ambient air
temperature.
Is the resistance measurement between the min/max readings for the current
ambient temperature?
All
Yes
→ Go To
No
→ Replace the ambient temperature sensor.
Perform the Body Verification Test - Ver 1.
2
Note: After any repair for an ambient temperature sensor problem, the
vehicle must be driven over 3 miles above 25 mph continuouly in order to
update the OTIS display
2
3
Turn the ignition off.
Close all doors and insure all interior and exterior lights are off.
Wait one minute.
Measure the resistance between ground and the sensor ground circuit.
Is the resistance below 30.0 ohms?
Yes
→ Go To
3
No
→ Go To
7
Turn the ignition off.
Disonncet the ambient temperature sensor harness connector. Disconnect the BCM
C3 harness connector.
Measure the resistance between ground and the sensor ground circuit.
Is the resistance below 10k ohms?
Yes
→ Repair the sensor ground circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
447
All
All
OVERHEAD CONSOLE
*INCORRECT AMBIENT TEMPERATURE SENSOR READING — Continued
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the Ambient Temperature Sensor harness connector.
Disconnect the BCM C3 harness connector.
Measure the resistance between ground and the ambient temperature sensor signal
circuit in the Ambient Temperature Sensor harness connector.
Is the resistance below 50k ohms?
All
5
6
Yes
→ Repair the ambient temperature sensor signal circuit for a short
to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
5
Turn the ignition off.
Disconnect the Ambient Temperature Sensor harness connector.
Disconnect the BCM C3 harness connector.
Measure the resistance between the ambient temperature sensor signal circuit and
sensor ground circuit in the Ambient Temperature Sensor harness connector.
Is the resistance below 50k ohms?
Yes
→ Repair the ambient temperature sensor signal circuit for a short
to the sensor ground circuit.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
6
View repair options.
All
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
7
8
Turn the ignition off.
Disconnect the Ambient Temperature Sensor harness connector.
Disconnect the BCM C3 harness connector.
Measure the resistance of the sensor ground circuit between the ambient temperature sensor harness connector and the BCM C3 harness connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the ambient temperature sensor ground circuit for an
open.
Perform the Body Verification Test - Ver 1.
All
8
If there are no possible causes remaining, replace the BCM.
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
448
All
OVERHEAD CONSOLE
Symptom:
*OTIS MILEAGE AND DISTANCE FUNCTIONS
POSSIBLE CAUSES
CHECK FOR ENGINE DTC
OTHER MILEAGE AND DISTANCE FACTORS
OTIS - MILEAGE AND DISTANCE FUNCTIONS
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
Check other OTIS functions such as Elapsed Time, Ambient Temperature, Distance
to Empty, etc.
Are the other OTIS functions working properly?
All
2
3
Yes
→ Go To
No
→ Replace the Overhead Travel Information System module.
Perform the Body Verification Test - Ver 1.
2
Turn the ignition on.
With the DRB, read engine DTCs.
Are any engine trouble codes present?
All
Yes
→ Refer to symptom list for problems related to the DTC(s) present.
Perform the Body Verification Test - Ver 1.
No
→ Go To
3
Other factors that affect mileage and distance must be checked. These include
injector pulse, pinion factor, fuel fill procedure, brake adjustment and correct tire
size.
Have all other factors affecting mileage and distance been checked for proper
function?
Yes
→ Test Complete.
No
→ Refer to the appropriate Service Information for procedures to
check the related factors.
Perform the Body Verification Test - Ver 1.
449
All
OVERHEAD CONSOLE
Symptom:
*OTIS SCREEN DISPLAYS (FAIL(
POSSIBLE CAUSES
OTIS SCREEN DISPLAYS 9FAIL9
TEST
1
ACTION
Verify the problem still exists.
Using the DRB, select 9Auto Self Test9 and observe the OTIS screen.
Does the OTIS screen display 9FAIL9?
Yes
→ Replace the Overhead Travel Information System Module.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
450
APPLICABILITY
All
OVERHEAD CONSOLE
Symptom:
*OTIS SCREEN DISPLAYS NO VALUES
POSSIBLE CAUSES
BCM - OTIS SCREEN DISPLAYS NO NUMBERED VALUES
TEST
1
ACTION
Verify the problem still exists.
Using the DRB, select 9Auto Self Test9 and observe the OTIS screen.
Does the OTIS screen show no numbered value?
Yes
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
451
APPLICABILITY
All
OVERHEAD CONSOLE
Symptom:
*OTIS SEGMENTS FAIL TO LIGHT UP
POSSIBLE CAUSES
SEGMENT(S) OF THE OTIS FAIL TO LIGHT UP
TEST
1
ACTION
Verify the problem still exists.
Using the DRB, select 9Auto Self Test9 and observe the OTIS screen.
Do any of the OTIS segments not light up?
Yes
→ Replace the Overhead Travel Information System Module.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
452
APPLICABILITY
All
OVERHEAD CONSOLE
Symptom:
*OTIS SWITCH TEST
POSSIBLE CAUSES
CHIME VERIFICATION
OTIS SWITCHES
TEST
1
2
ACTION
Turn the ignition off, leave key in ignition switch.
Open the driver front door.
Did the chime sound?
Yes
→ Go To
No
→ Refer to symptom list for problems related to chime system.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
Turn the ignition on.
Close the driver front door.
Press each button on the OTIS and listen for an audible beep at the Body Control
Module.
Was a beep heard at the Body Control Module each time an OTIS button was
pressed?
Yes
→ Test Complete.
No
→ Replace the Overhead Travel Information System (OTIS) module.
Perform the Body Verification Test - Ver 1.
453
All
POWER DOOR LOCKS/RKE
Symptom:
DECKLID RELEASE SOLENOID OUTPUT FAILURE
When Monitored and Set Condition:
DECKLID RELEASE SOLENOID OUTPUT FAILURE
When Monitored:
Set Condition:
During decklid release solenoid actuation.
The BCM detects a short or a open on the decklid release control.
POSSIBLE CAUSES
OPEN GROUND CIRCUIT
DECKLID RELEASE CONTROL CIRCUIT SHORTED TO GROUND
DECKLID RELEASE CONTROL CIRCUIT SHORTED TO VOLTAGE
OPEN DECKLID RELEASE CONTROL CIRCUIT
OPEN DECKLID RELEASE SOLENOID
WIRING HARNESS INTERMITTENT DEFECT
BODY CONTROL MODULE
BODY CONTROL MODULE
TEST
1
2
3
ACTION
With the DRB, erase DTC’s.
Press the decklid release switch several times.
With the DRB, read DTC’s.
Did this DTC reset?
Yes
→ Go To
2
No
→ Go To
10
Disconnect the Decklid Release Solenoid/Ajar Switch harness connector.
Turn the ignition on.
Using a 12-volt Test Light connected to ground, check the Decklid Release Control
circuit.
Is the test light illuminated?
Yes
→ Go To
3
No
→ Go To
5
Turn the ignition off.
Disconnect the Decklid Release Solenoid/Ajar Switch harness connector.
Remove the Body Control Module from the Junction Block
Turn the ignition on.
Measure the voltage of the Decklid Release Control circuit.
Is there any voltage present?
Yes
→ Repair the Decklid Release Control circuit for a short to voltage.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
454
APPLICABILITY
All
All
All
POWER DOOR LOCKS/RKE
DECKLID RELEASE SOLENOID OUTPUT FAILURE —
TEST
4
Continued
ACTION
If there are no possible causes remaining, replace the BCM.
View repair options.
APPLICABILITY
All
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
5
6
7
8
9
Turn the ignition off.
Disconnect the Decklid Release Solenoid/Ajar Switch harness connector.
Measure the resistance between ground and the ground circuit.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the ground circuit for an open.
Perform the Body Verification Test - Ver 1.
All
6
Turn the ignition off.
Disconnect the Decklid Release Solenoid/Ajar Switch harness connector.
Connect a 12-volt Test Light between the decklid release control ckt and the ground
circuit (cavs 1 and 3).
Press the decklid release switch and observe the test light.
Did the test light illuminate when the switch was pressed?
Yes
→ Replace the Decklid Release Solenoid.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
7
Turn the ignition off.
Disconnect the Decklid Release Solenoid/Ajar Switch harness connector.
Remove the Body Control Module from the Junction Block.
Measure the resistance between ground and the Decklid Release Control circuit.
Is the resistance below 5.0 ohms?
Yes
→ Repair the Decklid Release Control circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
8
Turn the ignition off.
Disconnect the Decklid Release Solenoid/Ajar Switch harness connector.
Remove the Body Control Module from the Junction Block.
Measure the resistance of the Decklid Release Control circuit between the Decklid
Release Solenoid/Ajar Switch connector and the Junction Block Body Control Module
connector (cavity 8).
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the Decklid Release Control circuit for an open.
Perform the Body Verification Test - Ver 1.
All
9
If there are no possible causes remaining, replace the BCM.
View repair options.
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
455
All
POWER DOOR LOCKS/RKE
DECKLID RELEASE SOLENOID OUTPUT FAILURE —
Continued
TEST
ACTION
APPLICABILITY
10
Turn the ignition off.
Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken wires.
Note: Visually inspect the related wire harness connectors. Look for broken,
bent, pushed out, or corroded terminals.
Were any problems found?
All
Yes
→ Repair wiring harness/connectors as necessary.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
456
POWER DOOR LOCKS/RKE
Symptom:
DECKLID RELEASE SWITCH FAILURE
When Monitored and Set Condition:
DECKLID RELEASE SWITCH FAILURE
When Monitored:
Continuously.
Set Condition: The BCM monitors voltage present on the decklid release switch output
circuit. If voltage is present for over 30 seconds, this DTC will set.
POSSIBLE CAUSES
DECKLID RELEASE SWITCH OUTPUT CIRCUIT SHORTED TO VOLTAGE
DEFECTIVE DECKLID RELEASE SWITCH
WIRING HARNESS INTERMITTENT DEFECT
BODY CONTROL MODULE
TEST
1
2
3
ACTION
With the DRB, erase DTC’s.
Cycle the ignition switch from off to on and wait at least 30 seconds.
With the DRB, read DTC’s.
Did this DTC reset?
Yes
→ Go To
2
No
→ Go To
5
Disconnect the Decklid Release Switch harness connector.
With the DRB, erase DTC’s.
Cycle the ignition switch from off to on and wait at least 30 seconds.
With the DRB, read DTC’s.
Did this DTC reset?
Yes
→ Go To
No
→ Replace the Decklid Release Switch.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
All
3
Turn the ignition off.
Disconnect the Decklid Release Switch harness connector.
Disconnect the BCM 9C19 harness connector.
Turn the ignition on.
Measure the voltage of the Decklid Release Switch Output circuit.
Is there any voltage present?
Yes
→ Repair the Decklid Release Switch Output circuit for a short to
voltage.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
457
All
POWER DOOR LOCKS/RKE
DECKLID RELEASE SWITCH FAILURE —
TEST
4
Continued
ACTION
If there are no possible causes remaining, replace the BCM.
View repair options.
APPLICABILITY
All
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
5
Turn the ignition off.
Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken wires.
Note: Visually inspect the related wire harness connectors. Look for broken,
bent, pushed out, or corroded terminals.
Were any problems found?
Yes
→ Repair wiring harness/connectors as necessary.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
458
All
POWER DOOR LOCKS/RKE
Symptom:
DRIVER DOOR CENTRAL
SWITCH FAILURE
LOCK
(ARM)/UNLOCK
(DISARM)
When Monitored and Set Condition:
DRIVER DOOR CENTRAL LOCK (ARM)/UNLOCK (DISARM) SWITCH FAILURE
When Monitored:
Set Condition:
Continuously
The BCM detect a signal on the input for over 10 seconds.
POSSIBLE CAUSES
DRIVER DOOR KEY CYLINDER SWITCH SENSE CIRCUIT SHORTED TO VOLTAGE
BINDING DRIVER DOOR CYLINDER LOCK SWITCH
DRIVER DOOR CYLINDER LOCK SWITCH SHORTED TO VOLTAGE
WIRING HARNESS INTERMITTENT DEFECT
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
With the DRB, erase DTC’s.
Insert the key in the Driver Door Cylinder Lock Switch and rotate the key to the lock
and unlock positions several times.
With the DRB, read DTC’s.
Did this DTC reset?
All
2
3
Yes
→ Go To
2
No
→ Go To
6
Insert the key in the Driver Door Cylinder Lock Switch and rotate the key to the lock
and unlock positions.
Does the key bind in any position?
Yes
→ Repair or replace the Driver Door Cylinder Lock Switch as
necessary.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
3
Disconnect the Driver Door Cylinder Lock Switch harness connector.
Turn the ignition on.
With the DRB, enter 9Body Computer9 then 9Sensors9 and observe the Dr Door
Disarm SW voltage
Is there any voltage present?
Yes
→ Go To
No
→ Replace the Driver Door Cylinder Lock Switch.
Perform the Body Verification Test - Ver 1.
4
459
All
POWER DOOR LOCKS/RKE
DRIVER DOOR CENTRAL LOCK (ARM)/UNLOCK (DISARM) SWITCH
FAILURE — Continued
TEST
4
5
ACTION
Turn the ignition off.
Disconnect the Driver Door Cylinder Lock Switch harness connector.
Disconnect the BCM 9C49 harness connector.
Turn the ignition on.
Measure the voltage of the Driver Door Key Cylinder Switch Sense circuit.
Is there any voltage present?
Yes
→ Repair the Driver Door Key Cylinder Switch Sense circuit for a
short to voltage.
Perform the Body Verification Test - Ver 1.
No
→ Go To
APPLICABILITY
All
5
If there are no possible causes remaining, replace the BCM.
View repair options.
All
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
6
Turn the ignition off.
Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken wires.
Note: Visually inspect the related wire harness connectors. Look for broken,
bent, pushed out, or corroded terminals.
Were any problems found?
Yes
→ Repair wiring harness/connectors as necessary.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
460
All
POWER DOOR LOCKS/RKE
Symptom:
PASSENGER DOOR CENTRAL LOCK (ARM)/UNLOCK (DISARM)
SWITCH FAILURE
When Monitored and Set Condition:
PASSENGER DOOR CENTRAL LOCK (ARM)/UNLOCK (DISARM) SWITCH FAILURE
When Monitored:
Set Condition:
Continuously
The BCM detects a signal on the input for over 10 seconds.
POSSIBLE CAUSES
PASSENGER DOOR KEY CYLINDER SWITCH SENSE CIRCUIT SHORTED TO VOLTAGE
BINDING PASSENGER DOOR CYLINDER LOCK SWITCH
PASSENGER DOOR CYLINDER LOCK SWITCH SHORTED TO VOLTAGE
WIRING HARNESS INTERMITTENT DEFECT
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
With the DRB, erase DTC’s.
Insert the key in the Passenger Door Cylinder Lock Switch and rotate the key to the
lock and unlock positions several times.
With the DRB, read DTC’s.
Did this DTC reset?
All
2
3
Yes
→ Go To
2
No
→ Go To
6
Insert the key in the Passenger Door Cylinder Lock Switch and rotate the key to the
lock and unlock positions.
Does the key bind in any position?
Yes
→ Repair or replace the Passenger Door Cylinder Lock Switch as
necessary.
Perform the Body Verification Test - Ver 1
No
→ Go To
All
3
Disconnect the Passenger Door Cylinder Lock Switch harness connector.
Turn the ignition on.
With the DRB, enter 9Body Computer9 then 9Sensors9 and observe the Pass Door
Disarm SW voltage.
Is there any voltage present?
Yes
→ Go To
No
→ Replace the Passenger Door Cylinder Lock Switch.
Perform the Body Verification Test - Ver 1
4
461
All
POWER DOOR LOCKS/RKE
PASSENGER DOOR CENTRAL
SWITCH FAILURE — Continued
TEST
4
5
LOCK
(ARM)/UNLOCK
ACTION
Turn the ignition off.
Disconnect the Passenger Door Cylinder Lock Switch harness connector.
Disconnect the BCM 9C49 harness connector.
Turn the ignition on.
Measure the voltage of the Passenger Door Key Cylinder Switch Sense circuit.
Is there any voltage present?
Yes
→ Repair the Passenger Door Key Cylinder Switch Sense circuit for
a short to voltage.
Perform the Body Verification Test - Ver 1
No
→ Go To
(DISARM)
APPLICABILITY
All
5
If there are no possible causes remaining, replace the BCM.
View repair options.
All
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1
6
Turn the ignition off.
Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken wires.
Note: Visually inspect the related wire harness connectors. Look for broken,
bent, pushed out, or corroded terminals.
Were any problems found?
Yes
→ Repair wiring harness/connectors as necessary.
Perform the Body Verification Test - Ver 1
No
→ Test Complete.
462
All
POWER DOOR LOCKS/RKE
Symptom:
RKE PROGRAM MODE ENTERED WITHOUT PROGRAM REQUEST
When Monitored and Set Condition:
RKE PROGRAM MODE ENTERED WITHOUT PROGRAM REQUEST
When Monitored:
Continuously.
Set Condition: The BCM receives an indication from the RKE module that it has entered
program mode without the BCM requesting so.
POSSIBLE CAUSES
RKE PROGRAM MODE ENTERED WITHOUT PROGRAM REQUEST
TEST
ACTION
APPLICABILITY
1
Note: This DTC will only set if the BCM receives an indication from the RKE
module that it has entered program mode without the BCM requesting so.
Replace the Remote Keyless Entry Module and program a transmitter..
With the DRB, clear DTCs.
Operate the Door Locks several times with the RKE transmitter.
With the DRB, check DTC’s.
Did this DTC reset?
All
Yes
→ If there are no possible causes remaining, replace the BCM and
program all transmitters.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
463
POWER DOOR LOCKS/RKE
Symptom:
RKE UNABLE TO ENTER PROGRAM MODE
When Monitored and Set Condition:
RKE UNABLE TO ENTER PROGRAM MODE
When Monitored:
While attempting to program RKE.
Set Condition: Lack of response from the RKE module while attempting to put it in
program mode.
POSSIBLE CAUSES
RKE UNABLE TO ENTER PROGRAM MODE
TEST
ACTION
APPLICABILITY
1
Note: This DTC will only set when attempting to enter the program RKE
mode.
Replace the Remote Keyless Entry Module.
With the DRB, Clear DTC’s
With the DRB, attempt to enter the RKE program mode.
With the DRB, check DTC’s.
Did this DTC reset?
All
Yes
→ If there are no possible causes remaining, replace the BCM and
program all transmitters.
Perform the Body Verification Test - Ver 1.
No
→ Test Complete.
464
POWER DOOR LOCKS/RKE
Symptom:
*ALL DOORS FAILING TO LOCK AND UNLOCK FROM ANY
SWITCH
POSSIBLE CAUSES
FUSED B+ CKT OPEN
OBSERVE THE DOOR LOCK SWITCH VOLTAGE STATUS WITH SWITCH IN THE LOCK POSITION
OPEN CIRCUIT BREAKER #2
OPEN FUSED B+ TO CIRCUIT BREAKER #2
PASSENGER DOOR SW MUX CKT SHORTD
PASSENGER DOOR SWITCH MUX CKT SHORTED TO VOLTAGE
DRIVER DOOR SW MUX CKT SHORTED
DRIVER DOOR SWITCH MUX CKT SHORTED TO VOLTAGE
BODY CONTROL MODULE
DEFECTIVE PASSENGER POWER DOOR LOCK SWITCH-SHORTED TO GROUND
DEFECTIVE PASSENGER POWER DOOR LOCK SWITCH-SHORTED TO VOLTAGE
DEFECTIVE DRIVER POWER DOOR LOCK SWITCH-SHORTED TO GROUND
DEFECTIVE DRIVER POWER DOOR LOCK SWITCH-SHORTED TO VOLTAGE
JUNCTION BLOCK-LOCK RELAY CONTROL CKT OPEN
JUNCTION BLOCK-LOCK RELAY OUTPUT CKT OPEN
OPEN FUSED B+ TO JUNCTION BLOCK C9 CONNECTOR CAVITY 1
OPEN GROUND CIRCUIT TO JUNCTION BLOCK
DOOR LOCK RELAY-OPEN/SHORTED COIL
DOOR LOCK RELAY-SHORTED TERMINALS
JUNCTION BLOCK OPEN FUSED B+ TO SWITCH SIDE OF RELAY
JUNCTION BLOCK-OPEN FUSED B+ TO COIL SIDE OF RELAY
JUNCTION BLOCK-OPEN GROUND CIRCUIT TO RELAY
OPEN FUSED B+ TO JUNCTION BLOCK C7 CONNECTOR CAVITY 3
BODY CONTROL MODULE
BODY CONTROL MODULE
TEST
1
ACTION
With the DRB, actuate the Door Lock Relay.
Do the doors lock during the actuation test?
Yes
→ Go To
2
No
→ Go To
15
APPLICABILITY
All
465
POWER DOOR LOCKS/RKE
*ALL DOORS FAILING TO LOCK AND UNLOCK FROM ANY SWITCH —
Continued
TEST
2
3
4
5
6
7
ACTION
With the DRB, observe the Door Lock Switch Voltage.
Is the voltage above 0.2 volts?
Yes
→ Go To
3
No
→ Go To
8
Disconnect the Passenger Power Door Lock harness connector.
With the DRB enter 9Body Computer9 then 9Sensors9 and observe the Door Lock
Switch Voltage.
Is the voltage above 0.2 volts?
Yes
→ Go To
No
→ Replace the Passenger Power Door Lock Switch.
Perform the Body Verification Test - Ver 1
APPLICABILITY
All
All
4
Turn the ignition off.
Disconnect the Passenger Power Door Lock Switch harness connector.
Disconnect the BCM 9C49 harness connector.
Turn the ignition on.
Measure the voltage of the Passenger Door Switch MUX circuit.
Is the voltage above 0.2 volts?
Yes
→ Repair the Passenger Door Switch MUX ckt for a short to voltage.
Perform the Body Verification Test - Ver 1
No
→ Go To
All
5
Disconnect the Driver Power Door Lock harness connector.
With the DRB enter 9Body Computer9 then 9Sensors9 and observe the Door Lock
Switch Voltage.
Is the voltage above 0.2 volts?
Yes
→ Go To
No
→ Replace the Driver Power Door Lock Switch.
Perform the Body Verification Test - Ver 1
All
6
Turn the ignition off.
Disconnect the Driver Power Door Lock Switch harness connector.
Disconnect the BCM 9C49 harness connector.
Turn the ignition on.
Measure the voltage of the Driver Door Switch MUX circuit.
Is the voltage above 0.2 volts?
Yes
→ Repair the Driver Door Switch MUX ckt for a short to voltage.
Perform the Body Verification Test - Ver 1
No
→ Go To
All
7
If there are no possible causes remaining, replace the BCM.
View repair options.
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1
466
All
POWER DOOR LOCKS/RKE
*ALL DOORS FAILING TO LOCK AND UNLOCK FROM ANY SWITCH —
Continued
TEST
8
9
10
11
12
13
ACTION
Turn the ignition off.
Disconnect the Driver Power Door Lock Switch harness connector.
Measure the voltage of the fused B+ circuit.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the open fused B+ ckt
Perform the Body Verification Test - Ver 1
APPLICABILITY
All
9
Turn the ignition off.
Disconnect the Passenger Power Door Lock Switch harness connector.
Disconnect the BCM 9C49 harness connector.
Measure the resistance of the Passenger Door Switch MUX circuit to ground.
Is the resistance below 5.0 ohms?
Yes
→ Repair the Passenger Door Switch MUX circuit for a short to
ground.
Perform the Body Verification Test - Ver 1
No
→ Go To
All
10
Turn the ignition off.
Disconnect the Driver Power Door Lock Switch harness connector.
Disconnect the BCM 9C49 harness connector.
Measure the resistance of the Driver Door Switch MUX circuit to ground.
Is the resistance below 5.0 ohms?
Yes
→ Repair the Driver Door Switch MUX circuit for a short to ground.
Perform the Body Verification Test - Ver 1
No
→ Go To
All
11
Turn the ignition off.
Disconnect the Passenger Power Door Lock Switch harness connector.
Measure the resistance between ground and the Passenger Door Switch MUX circuit.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Passenger Power Door Lock Switch.
Perform the Body Verification Test - Ver 1
All
12
Turn the ignition off.
Disconnect the Driver Power Door Lock Switch harness connector.
Measure the resistance between ground and the Driver Door Switch MUX circuit.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Driver Power Door Lock Switch.
Perform the Body Verification Test - Ver 1
All
13
With the DRB, Observe the Door Lock Switch voltage
Press and hold the Driver Power Door Lock Switch in the lock position and observe
the DRB.
Is the voltage above 1.7 volts with the switch pressed in the lock position?
Yes
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1
No
→ Go To
14
467
All
POWER DOOR LOCKS/RKE
*ALL DOORS FAILING TO LOCK AND UNLOCK FROM ANY SWITCH —
Continued
TEST
14
ACTION
If there are no possible causes remaining, replace the BCM.
View repair options.
APPLICABILITY
All
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1
15
16
17
18
19
20
Remove Circuit Breaker #2 from the Junction Block.
Measure the resistance across the circuit breaker terminals.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace Circuit Breaker #2.
Perform the Body Verification Test - Ver 1
All
16
Disconnect the Junction Block 9C99 harness connector.
Measure the voltage of the fused B+ (cavity 1) circuit.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the open fused B+ circuit.
Perform the Body Verification Test - Ver 1
All
17
Disconnect the Junction Block 9C79 harness connector.
Measure the resistance between ground and the ground circuit (cav 10).
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open ground circuit.
Perform the Body Verification Test - Ver 1
All
18
Remove the Door Lock Relay from the Junction Block.
Measure the resistance across terminals 85 (86) and 83 (85) of the Door Lock Relay.
Is the resistance between 50.0 and 90.0 ohms?
Yes
→ Go To
No
→ Replace the Door Lock Relay.
Perform the Body Verification Test - Ver 1
All
19
Remove the Door Lock Relay from the Junction Block.
Measure the resistance across terminals 85 (86) and 81 (30), 85 (86) and 82 (87), 85
(86) and 84 (87a).
Is the resistance below 100.0 ohms for any of the measurements?
Yes
→ Replace the Door Lock Relay.
Perform the Body Verification Test - Ver 1
No
→ Go To
All
20
Remove the Door Lock Relay from the Junction Block.
Measure the voltage of the Fused B+ circuit (cavity 83 (85)) in the Door Lock Relay
connector.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
21
468
All
POWER DOOR LOCKS/RKE
*ALL DOORS FAILING TO LOCK AND UNLOCK FROM ANY SWITCH —
Continued
TEST
ACTION
APPLICABILITY
21
Remove the Door Lock Relay from the Junction Block.
Connect a 12-volt Test Light between cavities 83 (85) and 85 (86) of the Door Lock
Relay connector.
Using the DRB, enter 9Body Computer9 then 9Actuator Tests9 and actuate the Door
Lock Relay.
Does the test light flash on and off as the relay is actuated?
All
22
23
24
25
26
Yes
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
No
→ Go To
22
Turn the ignition off.
Remove the Body Control Module from the Junction Block.
Measure the resistance of the Door Lock Relay Control ckt between the Door Lock
Relay Connector cavity 85 (86) and Junction Block 20-way Internal connector cavity
15.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
All
23
Disconnect the Junction Block 9C79 harness connector.
Measure the voltage of the fused B+ (cavity 3) circuit.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the open fused B+ circuit.
Perform the Body Verification Test - Ver 1
All
24
Remove Circuit Breaker #2 from the Junction Block.
Measure the voltage of the fused B+ circuit.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
All
25
Turn the ignition off.
Remove the Door Lock Relay from the Junction Block.
Measure the resistance between ground and the Ground circuit (cavity 84 (87a)) of
the Door Lock Relay connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
All
26
Remove the Door Lock Relay from the Junction Block.
Measure the voltage of the Fused B+ circuit (cavity 82 (87)) in the Door Lock Relay
connector.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
27
469
All
POWER DOOR LOCKS/RKE
*ALL DOORS FAILING TO LOCK AND UNLOCK FROM ANY SWITCH —
Continued
TEST
27
ACTION
If there are no possible causes remaining, replace the BCM.
View repair options.
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1
470
APPLICABILITY
All
POWER DOOR LOCKS/RKE
Symptom:
*ALL DOORS FAILING TO LOCK AND UNLOCK FROM ONE
SWITCH
POSSIBLE CAUSES
FUSED B+ CKT OPEN
OPEN FUSED B+ CIRCUIT
DOOR SWITCH MUX CKT OPEN
DOOR KEY CYLINDER SWITCH SENSE CIRCUIT OPEN
DOOR KEY CYLINDER SWITCH SENSE CIRCUIT SHORTED TO GROUND
DEFECTIVE DOOR CYLINDER LOCK SWITCH
DEFECTIVE POWER DOOR LOCK SWITCH-OPEN
BODY CONTROL MODULE
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Operate the door locks from the door lock switches and from the door key cylinder
switches.
Is there a problem with a Door Key Cylinder Switch (VTSS equipped)?
All
2
3
Yes
→ Go To
2
No
→ Go To
7
Disconnect the inoperative Door Cylinder Lock Switch harness connector.
Measure the voltage of the Fused B+ circuit.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the Fused B+ circuit for an open.
Perform the Body Verification Test - Ver 1.
All
3
Turn the ignition off.
Disconnect the Door Cylinder Lock Switch harness connector.
Disconnect the BCM 9C49 harness connector.
Measure the resistance of the Door Key Cylinder Switch Sense circuit to ground.
Is the resistance below 5.0 ohms?
Yes
→ Repair the Door Key Cylinder Switch Sense circuit for a short to
ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
471
All
POWER DOOR LOCKS/RKE
*ALL DOORS FAILING TO LOCK AND UNLOCK FROM ONE SWITCH —
Continued
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the Door Cylinder Lock Switch harness connector.
Disconnect the BCM 9C49 harness connector.
Measure the resistance of the Door Key Cylinder Switch Sense circuit between the
Door Cylinder Lock Switch connector and the BCM 9C49 connector.
Is the resistance below 5.0 ohms?
All
5
6
Yes
→ Go To
No
→ Repair the Door Key Cylinder Switch Sense circuit for an open.
Perform the Body Verification Test - Ver 1.
5
Disconnect the Door Cylinder Lock Switch harness connector.
Connect a jumper wire between the fused B+ ckt and the Door Key Cylinder Switch
Sense ckt.
With the DRB enter 9Body Computer9 then 9Sensors9 and observe the appropriate
Door Disarm Switch Voltage.
Is the voltage above 9.0 volts?
Yes
→ Replace the Door Cylinder Lock Switch.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
6
If there are no possible causes remaining, replace the BCM.
View repair options.
All
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
7
8
9
Disconnect the Power Door Lock Switch harness connector.
Measure the voltage of the fused B+ circuit.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the open fused B+ ckt.
Perform the Body Verification Test - Ver 1
All
8
Turn the ignition off.
Disconnect the inoperative Power Door Lock Switch harness connector.
Disconnect the BCM 9C49 harness connector.
Measure the resistance of the Door Switch MUX circuit between the inoperative
Power Door Lock Switch connector and the BCM 9C49 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the Door Switch MUX circuit for an open.
Perform the Body Verification Test - Ver 1
All
9
Disconnect the inoperative Power Door Lock Switch harness connector.
Connect a jumper wire between the Fused B+ ckt and the Door Switch MUX ckt.
With the DRB enter 9Body Computer9 then 9Sensors9 and observe the Door Lock
Switch Voltage.
Is the voltage above 9.0 volts?
Yes
→ Replace the inoperative Power Door Lock Switch
Perform the Body Verification Test - Ver 1
No
→ Go To
10
472
All
POWER DOOR LOCKS/RKE
*ALL DOORS FAILING TO LOCK AND UNLOCK FROM ONE SWITCH —
Continued
TEST
10
ACTION
If there are no possible causes remaining, replace the BCM.
View repair options.
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1
473
APPLICABILITY
All
POWER DOOR LOCKS/RKE
Symptom:
*ALL DOORS FAILING TO LOCK FROM ANY SWITCH
POSSIBLE CAUSES
LOCK RELAY DRIVER CIRCUIT SHORTED TO GROUND
BODY CONTROL MODULE
DOOR UNLOCK RELAY RESISTANCE CHECK
JUNCTION BLOCK-OPEN GROUND CIRCUIT TO DOOR UNLOCK RELAY
DOOR LOCK RELAY-OPEN/SHORTED COIL
DOOR LOCK RELAY-SHORTED TERMINALS
JUNCTION BLOCK OPEN FUSED B+ CKT TO SWITCH SIDE OF RELAY
JUNCTION BLOCK-LOCK RELAY CONTROL CKT OPEN
JUNCTION BLOCK-OPEN FUSED B+ CKT TO COIL SIDE OF RELAY
TEST
ACTION
APPLICABILITY
1
Remove the Door Lock Relay from the Junction Block.
Measure the voltage of the Fused B+ circuit (cavity 83 (85)) in the Door Lock Relay
connector.
Is the voltage above 10.0 volts?
All
2
3
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
2
Remove the Door Lock Relay from the Junction Block.
Connect a 12-volt Test Light between cavities 83 (85) and 85 (86) of the Door Lock
Relay connector.
Using the DRB, enter 9Body Computer9 then 9Actuator Tests9 and actuate the Door
Lock Relay.
Does the test light flash on and off as the relay is actuated?
Yes
→ Go To
3
No
→ Go To
9
Turn the ignition off.
Remove the Door Unlock Relay from the Junction Block.
Remove the Driver Door Unlock Relay from the Junction Block.
Remove the Door Lock Relay from the Junction Block.
Measure the resistance between ground and the Lock Relay Driver circuit (cavity 81
(30)) of the Door Lock Relay connector.
Is the resistance below 20.0 ohms?
Yes
→ Repair the Lock Relay Driver circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
474
All
All
POWER DOOR LOCKS/RKE
*ALL DOORS FAILING TO LOCK FROM ANY SWITCH —
Continued
TEST
ACTION
APPLICABILITY
4
Remove the Door Unlock Relay from the Junction Block.
Measure the resistance between terminal 76 (30) and terminal 79 (87a) of the Door
Unlock Relay.
Is the resistance below 5.0 ohms?
All
5
6
7
8
9
Yes
→ Go To
No
→ Replace the Door Unlock Relay.
Perform the Body Verification Test - Ver 1
5
Remove the Door Unlock Relay from the Junction Block.
Measure the resistance between ground and the Ground circuit (cavity 79 (87a)) of
the Door Unlock Relay connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
All
6
Remove the Door Lock Relay from the Junction Block.
Measure the resistance across terminals 85 (86) and 83 (85) of the Door Lock Relay.
Is the resistance between 50.0 and 90.0 ohms?
Yes
→ Go To
No
→ Replace the Door Lock Relay.
Perform the Body Verification Test - Ver 1
All
7
Remove the Door Lock Relay from the Junction Block.
Measure the resistance across terminals 85 (86) and 81 (30), 85 (86) and 82 (87), 85
(86) and 84 (87a).
Is the resistance below 100.0 ohms for any of the measurements?
Yes
→ Replace the Door Lock Relay.
Perform the Body Verification Test - Ver 1
No
→ Go To
All
8
Remove the Door Lock Relay from the Junction Block.
Measure the voltage of the Fused B+ circuit (cavity 82 (87)) in the Door Lock Relay
connector.
Is the voltage above 10.0 volts?
Yes
→ Test Complete.
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
Turn the ignition off.
Remove the Body Control Module from the Junction Block.
Remove the Door Lock Relay from the Junction Block.
Measure the resistance of the Door Lock Relay Control ckt between the Door Lock
Relay Connector cavity 85 (86) and Junction Block Body Control Module connector
cavity 15.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
10
475
All
All
POWER DOOR LOCKS/RKE
*ALL DOORS FAILING TO LOCK FROM ANY SWITCH —
TEST
10
ACTION
If there are no possible causes remaining, replace the BCM.
View repair options.
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1
476
Continued
APPLICABILITY
All
POWER DOOR LOCKS/RKE
Symptom:
*ALL DOORS FAILING TO LOCK FROM ONE SWITCH
POSSIBLE CAUSES
DOOR LOCK SWITCH OR DOOR CYLINDER LOCK SWITCH OPERATION
TEST
ACTION
APPLICABILITY
1
Operate the power door lock switch or the door cylinder lock switch in the lock
position.
Is a Power Door Lock Switch or a Door Cylinder Lock Switch inoperative in the lock
position?
All
Yes
→ Replace the Power Door Lock Switch or Door Cylinder Lock
Switch.
Perform the Body Verification Test - Ver 1
No
→ Test Complete.
477
POWER DOOR LOCKS/RKE
Symptom:
*ALL DOORS FAILING TO UNLOCK FROM ANY SWITCH
POSSIBLE CAUSES
UNLOCK RELAY DRIVER CIRCUIT SHORTED TO GROUND
JUNCTION BLOCK-UNLOCK RELAY CONTROL CKT OPEN
BODY CONTROL MODULE
DOOR UNLOCK RELAY-OPEN/SHORTED COIL
DOOR UNLOCK RELAY-SHORTED TERMINALS
JUNCTION BLOCK OPEN FUSED B+ CKT TO SWITCH SIDE OF RELAY
JUNCTION BLOCK-OPEN FUSED B+ CKT TO COIL SIDE OF RELAY
DOOR LOCK RELAY RESISTANCE CHECK
JUNCTION BLOCK-OPEN GROUND CIRCUIT TO DOOR LOCK RELAY
TEST
ACTION
APPLICABILITY
1
Remove the Door Unlock Relay from the Junction Block.
Measure the voltage of the Fused B+ circuit (cavity 78 (85)) in the Door Unlock Relay
connector.
Is the voltage above 10.0 volts?
All
2
3
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
2
Remove the Door Unlock Relay from the Junction Block.
Connect a 12-volt Test Light between cavities 78 (85) and 80 (86) of the Door Unlock
Relay connector.
Using the DRB, enter 9Body Computer9 then 9Actuator Tests9 and actuate the Door
Unlock Relay.
Does the test light flash on and off as the relay is actuated?
Yes
→ Go To
3
No
→ Go To
9
Turn the ignition off.
Remove the Door Lock Relay from the Junction Block.
Remove the Driver Door Unlock Relay from the Junction Block.
Remove the Door Unlock Relay from the Junction Block.
Measure the resistance between ground and the Unlock Relay Driver circuit (cavity
76 (30)) of the Door Unlock Relay connector.
Is the resistance below 20.0 ohms?
Yes
→ Repair the Unlock Relay Driver circuit for a short to ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
478
All
All
POWER DOOR LOCKS/RKE
*ALL DOORS FAILING TO UNLOCK FROM ANY SWITCH —
Continued
TEST
ACTION
APPLICABILITY
4
Remove the Door Unlock Relay from the Junction Block.
Measure the resistance across terminals 80 (86) and 78 (85) of the Door Unlock Relay.
Is the resistance between 50.0 and 90.0 ohms?
All
5
6
7
8
9
Yes
→ Go To
No
→ Replace the Door Unlock Relay.
Perform the Body Verification Test - Ver 1
5
Remove the Door Unlock Relay from the Junction Block.
Measure the resistance across terminals 80 (86) and 76 (30), 80 (86) and 77 (87), 80
(86) and 79 (87a).
Is the resistance below 100.0 ohms for any of the measurements?
Yes
→ Replace the Door Unlock Relay.
Perform the Body Verification Test - Ver 1
No
→ Go To
All
6
Remove the Door Unlock Relay from the Junction Block.
Measure the voltage of the Fused B+ circuit (cavity 77 (87)) in the Door Unlock Relay
connector.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
All
7
Remove the Door Lock Relay from the Junction Block.
Measure the resistance between terminal 81 (30) and terminal 84 (87a) of the Door
Lock Relay.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Door Lock Relay.
Perform the Body Verification Test - Ver 1
All
8
Turn the ignition off.
Remove the Door Lock Relay from the Junction Block.
Measure the resistance between ground and the Ground circuit (cavity 84 (87a)) of
the Door Lock Relay connector.
Is the resistance below 5.0 ohms?
Yes
→ Test Complete.
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
Turn the ignition off.
Remove the Body Control Module from the Junction Block.
Remove the Door Unlock Relay from the Junction Block.
Measure the resistance of the Door Unlock Relay Control ckt between the Door
Unlock Relay Connector cavity 80 (86) and Junction Block Body Control Module
connector cavity 19.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1.
10
479
All
All
POWER DOOR LOCKS/RKE
*ALL DOORS FAILING TO UNLOCK FROM ANY SWITCH —
TEST
10
ACTION
If there are no possible causes remaining, replace the BCM.
View repair options.
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
480
Continued
APPLICABILITY
All
POWER DOOR LOCKS/RKE
Symptom:
*ALL DOORS FAILING TO UNLOCK FROM ONE SWITCH
POSSIBLE CAUSES
DOOR LOCK SWITCH OR DOOR CYLINDER LOCK SWITCH OPERATION
TEST
ACTION
APPLICABILITY
1
Operate the power door lock switch or the door cylinder lock switch in the unlock
position.
Is a Power Door Lock Switch or a Door Cylinder Lock Switch inoperative in the
unlock position?
All
Yes
→ Replace the Power Door Lock Switch or Door Cylinder Lock
Switch.
Perform the Body Verification Test - Ver 1
No
→ Test Complete.
481
POWER DOOR LOCKS/RKE
Symptom:
*AUTOMATIC (ROLLING) DOOR LOCKS
POSSIBLE CAUSES
BODY CONTROL MODULE
CHECK THE DOOR AJAR SWITCH STATUS
WITH THE DRB CHECK FOR PCM DTC’S
WITH THE DRB ENABLE AUTO DOOR LOCKS
TEST
ACTION
APPLICABILITY
1
Ensure all doors are closed.
With the DRB, enter 9Body Computer9 then 9Input/Output9 and observe all of the
Door Ajar statuses.
Does the DRB display CLOSED for any door ajar state?
All
2
3
4
Yes
→ Refer to symptom list for problems related to the Interior Lighting (Door Ajar) system.
Perform the Body Verification Test - Ver 1.
No
→ Go To
2
With the DRB, read 9Engine9 DTC’s.
Does the DRB display any TPS or VSS related DTC’s?
Yes
→ Refer to the appropriate category for the related symptom(s).
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
3
With the DRB, enter 9Body Computer9 then 9Miscellaneous9 and observe the auto
door lock status.
Does the DRB display AUTO DOOR LOCKS: ENABLED
Yes
→ Go To
No
→ With the DRB, enable the Auto Door Locks.
Perform the Body Verification Test - Ver 1.
All
4
If there are no possible causes remaining, replace the BCM.
View repair options.
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
482
All
POWER DOOR LOCKS/RKE
Symptom:
*DOOR LOCK INHIBIT
POSSIBLE CAUSES
BCM-INCORRECT KEY-IN IGNITION SWITCH STATUS
CHECK THE DRIVER DOOR AJAR SWITCH STATUS
IGNITION SWITCH OPEN
OBSERVE THE KEY-IN IGNITION SWITCH STATUS
KEY-IN IGNITION SWITCH GROUND CIRCUIT OPEN
KEY-IN IGNITION SWITCH SENSE CIRCUIT OPEN
TEST
ACTION
APPLICABILITY
1
Open the Driver’s front door.
With the DRB, enter 9Body Computer9 then 9Input/Output9 and observe the Driver
Door Ajar status.
Does the DRB display DRDOOR AJAR: CLOSED?
All
2
3
4
Yes
→ Go To
No
→ Refer to symptom list for problems related to the Interior Light
(Door Ajar) system.
Perform the Body Verification Test - Ver 1.
2
Note: Ensure that the Key is still in the Ignition Switch.
With the DRB, enter 9Body Computer9 then 9Input/Output9 and read the Key-In
Ignition Switch status.
Does the DRB display: KEY-IN IGN: CLOSED ?
Yes
→ Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
3
Turn the ignition off.
Disconnect the Ignition Switch harness connector.
Connect a jumper between the Key-In Ignition Switch Sense circuit and Ground
circuit.
With the DRB, enter 9Body Computer9 then 9Input/Output9 and observe the Key-In
Ignition Switch status.
Does the DRB display KEY-IN IGN: CLOSED?
Yes
→ Replace the Ignition Switch.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
4
Turn the ignition off.
Disconnect the Ignition Switch harness connector.
Measure the resistance between ground and the ground circuit.
Is the resistance below 5.0 ohms ?
Yes
→ Go To
No
→ Repair the ground circuit for an open.
Perform the Body Verification Test - Ver 1.
5
483
All
POWER DOOR LOCKS/RKE
*DOOR LOCK INHIBIT —
Continued
TEST
ACTION
APPLICABILITY
5
Turn the ignition off.
Disconnect the Ignition Switch harness connector.
Disconnect the Body Control Module 9C29 harness connector.
Measure the resistance of the Key-In Ignition Switch Sense circuit between the
ignition switch connector and the BCM 9C29 connector.
Is the resistance below 5.0 ohms?
All
6
Yes
→ Go To
No
→ Repair the Key-In Ignition Switch Sense circuit for an open.
Perform the Body Verification Test - Ver 1.
6
If there are no possible causes remaining, replace the BCM.
View repair options.
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
484
All
POWER DOOR LOCKS/RKE
Symptom:
*DRIVER FRONT DOOR FAILING TO LOCK FROM ANY SWITCH
POSSIBLE CAUSES
JUNCTION BLOCK GROUND OPEN
DRIVER DOOR UNLOCK RELAY
TEST
ACTION
APPLICABILITY
1
Remove the Driver Door Unlock Relay from the Junction Block.
Turn the ignition off.
Measure the resistance between ground and ground circuit (cavity 89 (87a)) in the
Driver Door Unlock Relay connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Replace the Driver Door Unlock Relay.
Perform the Body Verification Test - Ver 1
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
485
POWER DOOR LOCKS/RKE
Symptom:
*DRIVER FRONT DOOR FAILING TO UNLOCK FROM ANY SWITCH
POSSIBLE CAUSES
JUNCTION BLOCK-DRIVER DOOR UNLOCK RELAY CONTROL CKT OPEN
OPEN FUSED B+-SWITCH SIDE OF RELAY
BODY CONTROL MODULE
CHECK THE DRIVER DOOR UNLOCK RELAY CONTROL CIRCUIT
OPEN FUSED B+-COIL SIDE TO RELAY
TEST
ACTION
APPLICABILITY
1
Remove the Driver Door Unlock Relay from the Junction Block.
Measure the voltage of the Fused B+ circuit (cavity 87 (87)) in the Driver Door Unlock
Relay connector.
Is the voltage above 10.0 volts?
All
2
3
4
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
2
Remove the Driver Door Unlock Relay from the Junction Block.
Measure the voltage of the Fused B+ circuit (cavity 88 (85)) in the Driver Door Unlock
Relay connector.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
All
3
Turn the ignition off.
Remove the Body Control Module from the Junction Block.
Measure the resistance of the Driver Door Unlock Relay Control ckt between the
Driver Door Unlock Relay Connector cavity 90 (86) and Junction Block Body Control
Module connector cavity 13.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
All
4
Remove the Driver Door Unlock Relay from the Junction Block.
Connect a 12-volt Test Light between cavities 88 (85) and 90 (86) of the Driver Door
Unlock Relay connector.
Using the DRB, enter 9Body Computer9 then 9Actuator Tests9 and actuate the Driver
Door Unlock Relay.
Does the test light flash on and off as the relay is actuated?
Yes
→ Replace the Driver Door Unlock Relay.
Perform the Body Verification Test - Ver 1
No
→ Go To
5
486
All
POWER DOOR LOCKS/RKE
*DRIVER FRONT DOOR FAILING TO UNLOCK FROM ANY SWITCH —
Continued
TEST
5
ACTION
If there are no possible causes remaining, replace the BCM.
View repair options.
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
487
APPLICABILITY
All
POWER DOOR LOCKS/RKE
Symptom:
*INOPERATIVE DECKLID RELEASE
POSSIBLE CAUSES
OPEN DECKLID RELEASE SWITCH OUTPUT CIRCUIT
OPEN GROUND CIRCUIT
OPEN DECKLID RELEASE CONTROL CIRCUIT
OPEN DECKLID RELEASE SOLENOID
DEFECTIVE DECKLID RELEASE SWITCH
OPEN FUSED B+ CIRCUIT
BODY CONTROL MODULE
TEST
1
2
3
ACTION
Turn the ignition off.
Disconnect the Decklid Release Solenoid/Ajar Switch harness connector.
Measure the resistance between ground and the ground circuit.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the ground circuit for an open.
Perform the Body Verification Test - Ver 1.
APPLICABILITY
All
2
Turn the ignition off.
Disconnect the Decklid Release Solenoid/Ajar Switch harness connector.
Connect a 12-volt Test Light between the decklid release control ckt and the ground
circuit (cavs 1 and 3).
Press the decklid release switch and observe the test light.
Did the test light illuminate when the switch was pressed?
Yes
→ Replace the Decklid Release Solenoid.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
3
Turn the ignition off.
Disconnect the Decklid Release Switch harness connector.
Disconnect the BCM 9C19 harness connector.
Measure the resistance of the Decklid Release Switch Output circuit between the
BCM 9C19 connector and the Decklid Release Switch connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the Decklid Release Switch Output circuit for an open.
Perform the Body Verification Test - Ver 1.
4
488
All
POWER DOOR LOCKS/RKE
*INOPERATIVE DECKLID RELEASE —
Continued
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the Decklid Release Solenoid/Ajar Switch harness connector.
Remove the Body Control Module from the Junction Block.
Measure the resistance of the Decklid Release Control circuit between the Decklid
Release Solenoid/Ajar Switch connector and the Junction Block Body Control Module
connector (cavity 8).
Is the resistance below 5.0 ohms?
All
5
6
7
Yes
→ Go To
No
→ Repair the Decklid Release Control circuit for an open.
Perform the Body Verification Test - Ver 1.
5
Disconnect the Decklid Release Switch harness connector.
Measure the voltage of the Fused B+ circuit.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the Fused B+ circuit for an open.
Perform the Body Verification Test - Ver 1.
All
6
Disconnect the Decklid Release Solenoid/Ajar Switch harness connector.
Connect a 12-volt Test Light between the decklid release control ckt and the ground
circuit (cavs 1 and 3).
Disconnect the Decklid Release Switch harness connector.
Connect a jumper wire between the Fused B+ circuit and the Decklid Release Switch
Output circuit on the Decklid Release Switch harness connector.
Observe the test light with the jumper wire connected.
Is the test light illuminated?
Yes
→ Replace the Decklid Release Switch.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
7
If there are no possible causes remaining, replace the BCM.
View repair options.
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
489
All
POWER DOOR LOCKS/RKE
Symptom:
*ONE DOOR FAILING TO LOCK AND UNLOCK FROM ANY SWITCH
POSSIBLE CAUSES
OPEN DRIVER DOOR UNLOCK RELAY DRIVER CIRCUIT
OPEN LOCK RELAY DRIVER CIRCUIT
OPEN LOCK RELAY DRIVER CIRCUIT
OPEN UNLOCK RELAY DRIVER CIRCUIT
JUNCTION BLOCK-OPEN DRIVER DOOR UNLOCK RELAY DRIVER CIRCUIT
JUNCTION BLOCK-OPEN LOCK RELAY DRIVER CIRCUIT
JUNCTION BLOCK-OPEN LOCK RELAY DRIVER CIRCUIT
JUNCTION BLOCK-OPEN UNLOCK RELAY DRIVER CIRCUIT
JUNCTION BLOCK-DRIVER DOOR UNLOCK RELAY CONTROL CKT OPEN
DEFECTIVE DRIVER DOOR LOCK MOTOR
DR DOOR UNLOCK RELAY-OPEN/SHORTED COIL
DR DOOR UNLOCK RELAY-SHORTED TERMINALS
OPEN FUSED B+-SWITCH SIDE OF RELAY
BODY CONTROL MODULE
OPEN FUSED B+-COIL SIDE TO RELAY
DEFECTIVE DOOR LOCK MOTOR
TEST
1
2
3
ACTION
Operate the door locks to determine which door lock is not operating properly.
Is there a problem with the driver front door lock?
Yes
→ Go To
2
No
→ Go To
14
Remove the Driver Door Unlock Relay from the Junction Block.
Measure the resistance across terminals 90 (86) and 88 (85) of the Driver Door
Unlock Relay.
Is the resistance between 50.0 and 90.0 ohms?
Yes
→ Go To
No
→ Replace the Driver Door Unlock Relay.
Perform the Body Verification Test - Ver 1
APPLICABILITY
All
All
3
Remove the Driver Door Unlock Relay from the Junction Block.
Measure the resistance across terminals 90 (86) and 86 (30), 90 (86) and 87 (87), 90
(86) and 89 (87a).
Is the resistance below 100.0 ohms for any of the measurements?
Yes
→ Replace the Driver Door Unlock Relay.
Perform the Body Verification Test - Ver 1
No
→ Go To
4
490
All
POWER DOOR LOCKS/RKE
*ONE DOOR FAILING TO LOCK AND UNLOCK FROM ANY SWITCH —
Continued
TEST
ACTION
APPLICABILITY
4
Remove the Driver Door Unlock Relay from the Junction Block.
Measure the voltage of the Fused B+ circuit (cavity 87 (87)) in the Driver Door Unlock
Relay connector.
Is the voltage above 10.0 volts?
All
5
6
7
8
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
5
Remove the Driver Door Unlock Relay from the Junction Block.
Measure the voltage of the Fused B+ circuit (cavity 88 (85)) in the Driver Door Unlock
Relay connector.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
All
6
Remove the Driver Door Unlock Relay from the Junction Block.
Connect a 12-volt Test Light between cavities 88 (85) and 90 (86) of the Driver Door
Unlock Relay connector.
Using the DRB, enter 9Body Computer9 then 9Actuator Tests9 and actuate the Driver
Door Unlock Relay.
Does the test light flash on and off as the relay is actuated?
Yes
→ Go To
7
No
→ Go To
12
Remove the key from the ignition.
Using a 12-volt Test Light connected to ground, backprobe the Driver Door Unlock
Relay Driver circuit in the Junction Block 9C69 connector.
Press either door lock switch to the unlock position and observe the test light.
Does the test light illuminate when either door lock switch is depressed in the unlock
position?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1.
All
All
8
Remove the key from the ignition.
Using a 12-volt Test Light connected to ground, backprobe the Lock Relay Driver
circuit (driver door) in the Junction Block 9C69 connector.
Press either door lock switch to the lock position and observe the test light.
Does the test light illuminate when either door lock switch is depressed in the lock
position?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1.
9
491
All
POWER DOOR LOCKS/RKE
*ONE DOOR FAILING TO LOCK AND UNLOCK FROM ANY SWITCH —
Continued
TEST
ACTION
APPLICABILITY
9
Remove the key from the ignition.
Disconnect the Driver Door Lock Motor/Ajar Switch harness connector.
Using a 12-volt Test Light, connect one end to the Lock Relay Driver circuit and
connect the other end to the Driver Door Unlock Relay Driver circuit.
Press either door lock switch in the unlock position then in the lock position.
Did the test light illuminate when the door lock switch was in the lock and unlock
positions?
All
10
11
12
13
Yes
→ Replace the Driver Door Lock Motor.
Perform the Body Verification Test - Ver 1.
No
→ Go To
10
Remove the key from the ignition.
Disconnect the driver door lock motor/ajar switch harness connector.
Using a 12-volt Test Light connected to ground, check the Driver Door Unlock Relay
Driver circuit.
Press either door lock switch to the unlock position and observe the test light.
Does the test light illuminate when either door lock switch is depressed in the unlock
position?
Yes
→ Go To
No
→ Repair the Driver Door Unlock Relay Driver circuit for an open.
Perform the Body Verification Test - Ver 1.
All
11
Remove the key from the ignition.
Disconnect the driver door door lock motor/ajar switch harness connector.
Using a 12-volt Test Light connected to ground, check the Lock Relay Driver circuit.
Press either door lock switch to the lock position and observe the test light.
Does the test light illuminate when either door lock switch is depressed in the lock
position?
Yes
→ Test Complete.
No
→ Repair the Lock Relay Driver circuit for an open.
Perform the Body Verification Test - Ver 1.
Turn the ignition off.
Remove the Body Control Module from the Junction Block.
Measure the resistance of the Driver Door Unlock Relay Control ckt between the
Driver Door Unlock Relay Connector cavity 90 (86) and Junction Block Body Control
Module connector cavity 13.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1
All
All
13
If there are no possible causes remaining, replace the BCM.
View repair options.
Repair
If there are no possible causes remaining, replace the BCM.
Perform the Body Verification Test - Ver 1.
492
All
POWER DOOR LOCKS/RKE
*ONE DOOR FAILING TO LOCK AND UNLOCK FROM ANY SWITCH —
Continued
TEST
ACTION
APPLICABILITY
14
Remove the key from the ignition.
Disconnect the inoperative Door Lock Motor/Ajar Switch harness connector.
Using a 12-volt Test Light, connect one end to the Lock Relay Driver circuit and
connect the other end to the Unlock Relay Driver circuit.
Press either door lock switch in the unlock position then in the lock position.
Did the test light illuminate when the door lock switch was in the lock and unlock
positions?
All
15
16
17
18
Yes
→ Replace the appropriate Door Lock Motor.
Perform the Body Verification Test - Ver 1.
No
→ Go To
15
Remove the key from the ignition.
Using a 12-volt Test Light connected to ground, backprobe the appropriate Lock
Relay Driver circuit in the Junction Block 9C69 connector.
Press either door lock switch to the lock position and observe the test light.
Does the test light illuminate when either door lock switch is depressed in the lock
position?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1.
All
16
Remove the key from the ignition.
Using a 12-volt Test Light connected to ground, backprobe the appropriate Unlock
Relay Driver circuit in the Junction Block 9C79 connector.
Press either door lock switch to the unlock position and observe the test light.
Does the test light illuminate when either door lock switch is depressed in the unlock
position?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1.
All
17
Remove the key from the ignition.
Disconnect the inoperative door lock motor/ajar switch harness connector.
Using a 12-volt Test Light connected to ground, check the Lock Relay Driver circuit.
Press either door lock switch to the lock position and observe the test light.
Does the test light illuminate when either door lock switch is depressed in the lock
position?
Yes
→ Go To
No
→ Repair the Lock Relay Driver circuit for an open.
Perform the Body Verification Test - Ver 1.
All
18
Remove the key from the ignition.
Disconnect the inoperative door lock motor/ajar switch harness connector.
Using a 12-volt Test Light connected to ground, check the Unlock Relay Driver
circuit.
Press either door lock switch to the unlock position and observe the test light.
Does the test light illuminate when either door lock switch is depressed in the unlock
position?
Yes
→ Test Complete.
No
→ Repair the Unlock Relay Driver circuit for an open.
Perform the Body Verification Test - Ver 1.
493
All
POWER DOOR LOCKS/RKE
Symptom:
*REMOTE KEYLESS ENTRY PROBLEM
POSSIBLE CAUSES
REPROGRAM KEY FOBS
TESTING THE REMOTE KEYLESS ENTRY MODULE
TEST
ACTION
APPLICABILITY
1
Secure a good transmitter. Note: Make sure the transmitter batteries are approximately 3.2 volts each.
With the DRB, enter 9Body9, 9Body Computer9, 9Miscellaneous9 then 9Program RKE9
and follow the instructions on the DRB.
Press the lock or unlock button on a transmitter.
Did the RKE respond correctly?
All
Yes
→ Replace and reprogram the original RKE transmitter.
Perform the Body Verification Test - Ver 1.
No
→ Replace the Remote Keyless Entry (RKE) Module and reprogram
all vehicle transmitters following the instructions on the DRB.
Perform the Body Verification Test - Ver 1.
494
POWER DOOR LOCKS/RKE
Symptom:
*RKE HORN CHIRP INOPERATIVE
POSSIBLE CAUSES
JUNCTION BLOCK-HORN RELAY CONTROL CIRCUIT OPEN
BODY CONTROL MODULE
CHECK THE HORN OPERATION
CHECK THE RKE HORN CHIRP STATUS
TEST
1
2
3
4
ACTION
Press the horn button on the steering wheel.
Does the horn sound?
APPLICABILITY
All
Yes
→ Go To
No
→ Refer to the Service Information for Horn system diagnosis.
Perform the Body Verification Test - Ver 1.
2
With the DRB, enter 9Body Computer9, 9Miscellaneous9 then 9RKE Horn Chirp9 and
observe the horn chirp status.
Does the DRB display HORN CHIRP: DISABLED?
Yes
→ With the DRB, enable the Horn Chirp.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
3
Turn the ignition off.
Remove the Body Control Module from the Junction Block.
Momentarily connect a jumper wire between ground and the Horn Relay Control
circuit (cavity 18 of the Junction Block 20-way internal connector).
Did the horn sound?
Yes
→ Go To
No
→ Replace the Junction Block.
Perform the Body Verification Test - Ver 1.
All
4
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the BCM.
Perform the Body Verification Test - Ver 1.
495
All
SPEED PRO STEERING
Symptom:
SPEED PRO STEERING CKT SHORT TO VOLTAGE
When Monitored and Set Condition:
SPEED PRO STEERING CKT SHORT TO VOLTAGE
When Monitored:
With ignition on.
Set Condition: BCM detects current flowing through the speed pro steering solenoid even
though it is attempting to drive it.
POSSIBLE CAUSES
SPS SOLENOID (-) WIRE SHORT TO VOLTAGE
SPS SOLENOID (+) CIRCUIT SHORTED TO (-) CIRCUIT
SPS SOLENOID (+) WIRE SHORT TO VOLTAGE
OPEN/SHORTED SPEED PRO STEERING SOLENOID
SPEED PROPORTIONAL STEERING CHECK SHORT VOLTAGE
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Start the engine. Turn the steering wheel and observe the amount of assist.
With the DRBIIIt, de-activate the SPS solenoid for 15 seconds ANDAgain turn the steering wheel and observe the amount of assist.
Was the steering wheel harder to turn while the DRB was de-actuating the solenoid?
STEERING SPEED PROPORTIONAL
2
3
Yes
→ System is operating properly at this time. Erase code, inspect the
wiring and connectors and repair as necessary.
Perform Speed Pro Steering Verification Test- Ver 1.
No
→ Go To
2
Turn the ignition off.
Disconnect the Speed Pro Steering Solenoid connector.
Measure the resistance of the Speed Pro Steering Solenoid at the solenoid side
connector.
Is the resistance between 5.7 and 6.3 ohms at 20 C (68° F)?
Yes
→ Go To
No
→ Replace the Speed Pro Steering Solenoid.
Perform Speed Pro Steering Verification Test- Ver 1.
STEERING SPEED PROPORTIONAL
3
Disconnect the Speed Pro Steering Solenoid connector.
Start engine.
Measure the voltage of the SPS Solenoid (-) circuit in the SPS Solenoid connector.
Is any voltage present?
Yes
→ Repair the SPS Solenoid (-) wire for a short to voltage and replace
the Body Control Module (BCM will be damaged).
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
496
STEERING SPEED PROPORTIONAL
SPEED PRO STEERING
SPEED PRO STEERING CKT SHORT TO VOLTAGE —
Continued
TEST
ACTION
APPLICABILITY
4
Disconnect the Speed Pro Steering Solenoid connector.
Start engine.
Measure the voltage of the SPS Solenoid (+) circuit in the SPS Solenoid connector.
Is any voltage present?
STEERING SPEED PROPORTIONAL
5
6
Yes
→ Repair the SPS Solenoid (+) wire for a short to voltage..
Perform Speed Pro Steering Verification Test- Ver 1.
No
→ Go To
5
Turn ignition off.
Disconnect the Speed Pro Steering Solenoid connector.
Remove the Body Control Module from the junction block.
Measure the resistance of the SPS Solenoid (+) circuit to the SPS Solenoid (-) circuit
in the Junction Block BCM Internal connector.
Is the resistance below 100.0 ohms
Yes
→ Repair the SPS Solenoid (+) circuit for a short to the SPS Solenoid
(-) circuit.
Perform Speed Pro Steering Verification Test- Ver 1.
No
→ Go To
STEERING SPEED PROPORTIONAL
6
If there are no possible causes remaining, view repair.
Repair
Replace the Body Control Module.
Perform the Body Verification Test - Ver 1.
497
STEERING SPEED PROPORTIONAL
SPEED PRO STEERING
Symptom:
SPEED PRO STEERING SOLENOID CKT OPEN/SHORTED TO
GROUND
When Monitored and Set Condition:
SPEED PRO STEERING SOLENOID CKT OPEN/SHORTED TO GROUND
When Monitored:
With ignition on.
Set Condition: BCM detects no current flowing through the speed pro steering solenoid
when it attempts to drive it.
POSSIBLE CAUSES
SPEED PRO STEERING SOLENOID (-) CIRCUIT SHORT GROUND
SPS SOLENOID (-) WIRE OPEN
SPEED PRO STEERING SOLENOID (+) CIRCUIT SHORT GROUND
SPS SOLENOID (+) CIRCUIT SHORTED TO (-) CIRCUIT
SPS SOLENOID (+) WIRE OPEN
OPEN/SHORTED SPEED PRO STEERING SOLENOID
SPEED PROPORTIONAL STEERING CHECK OPEN/SHORT
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Start the engine. Turn the steering wheel and observe the amount of assist.
With the DRBIIIt, de-activate the SPS solenoid for 15 seconds AND-.
Again turn the steering wheel and observe the amount of assist.
Was the steering wheel harder to turn while the DRB was de-actuating the solenoid?
STEERING SPEED PROPORTIONAL
2
Yes
→ System is operating properly at this time. Erase code, inspect the
wiring and connectors and repair as necessary.
Perform Speed Pro Steering Verification Test- Ver 1.
No
→ Go To
2
Turn the ignition off.
Disconnect the Speed Pro Steering Solenoid connector.
Measure the resistance of the Speed Pro Steering Solenoid at the solenoid side
connector.
Is the resistance between 5.7 and 6.3 ohms at 20 C (68° F)?
Yes
→ Go To
No
→ Replace the Speed Pro Steering Solenoid.
Perform Speed Pro Steering Verification Test- Ver 1.
3
498
STEERING SPEED PROPORTIONAL
SPEED PRO STEERING
SPEED PRO STEERING SOLENOID CKT OPEN/SHORTED TO GROUND
— Continued
TEST
ACTION
APPLICABILITY
3
Disconnect the Speed Pro Steering Solenoid connector.
Turn ignition on.
Using a 12-volt Test Light connected to 12-volts, probe the SPS Solenoid (+) circuit.
Is the test light on?
STEERING SPEED PROPORTIONAL
4
5
6
7
Yes
→ Repair the Speed Pro Steering (+) circuit for a short to ground.
Perform Speed Pro Steering Verification Test- Ver 1.
No
→ Go To
4
Disconnect the Speed Pro Steering Solenoid connector.
Turn ignition on.
Using a 12-volt Test Light connected to 12-volts, probe the SPS Solenoid (-) circuit in
the SPS Solenoid connector.
Is the test light on?
Yes
→ Repair the Speed Pro Steering (-) circuit for a short to ground.
Perform Speed Pro Steering Verification Test- Ver 1.
No
→ Go To
STEERING SPEED PROPORTIONAL
5
Turn ignition off.
Disconnect the Speed Pro Steering Solenoid connector.
Remove the Body Control Module from the junction block.
Measure the resistance of the SPS Solenoid (+) circuit to the SPS Solenoid (-) circuit
in the Junction Block BCM Internal connector.
Is the resistance below 100.0 ohms
Yes
→ Repair the SPS Solenoid (+) circuit for a short to the SPS Solenoid
(-) circuit.
Perform Speed Pro Steering Verification Test- Ver 1.
No
→ Go To
STEERING SPEED PROPORTIONAL
6
Turn the ignition off.
Disconnect the Speed Pro Steering Solenoid connector.
Remove the Body Control Module from the junction block.
Measure the resistance of the SPS Solenoid (-) circuit between the Junction Block
BCM connector and the SPS Solenoid connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open SPS Solenoid (-) wire.
Perform Speed Pro Steering Verification Test- Ver 1.
STEERING SPEED PROPORTIONAL
7
Turn the ignition off.
Disconnect the Speed Pro Steering Solenoid connector.
Remove the Body Control Module from the junction block.
Measure the resistance of the SPS Solenoid (+) circuit between the Junction Block
BCM connector and the SPS Solenoid connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open SPS Solenoid (+) wire.
Perform Speed Pro Steering Verification Test- Ver 1.
8
499
STEERING SPEED PROPORTIONAL
SPEED PRO STEERING
SPEED PRO STEERING SOLENOID CKT OPEN/SHORTED TO GROUND
— Continued
TEST
8
ACTION
View repair options.
APPLICABILITY
STEERING SPEED PROPORTIONAL
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
500
SPEED PRO STEERING
Symptom:
SPEED PRO STEERING SOLENOID OVER-TEMPERATURE
When Monitored and Set Condition:
SPEED PRO STEERING SOLENOID OVER-TEMPERATURE
When Monitored:
Set Condition:
output driver.
With ignition on.
BCM detects an over temperature condition on its speed proportional
POSSIBLE CAUSES
SPEED PRO STEERING SOLENOID WIRING INTERMITTENT SHORT TO GROUND
OPEN/SHORTED SPEED PRO STEERING SOLENOID
SPEED PROPORTIONAL STEERING CHECK SOLENOID OVER-TEMPERATURE
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Start the engine. Turn the steering wheel and observe the amount of assist.
With the DRBIIIt, de-activate the SPS solenoid for 15 seconds ANDAgain turn the steering wheel and observe the amount of assist.
Was the steering wheel harder to turn while the DRB was de-actuating the solenoid?
STEERING SPEED PROPORTIONAL
2
3
Yes
→ System is operating properly at this time. Erase code, inspect the
wiring and connectors and repair as necessary.
Perform Speed Pro Steering Verification Test- Ver 1.
No
→ Go To
2
Turn the ignition off.
Disconnect the Speed Pro Steering Solenoid connector.
Measure the resistance of the Speed Pro Steering Solenoid at the solenoid side
connector.
Is the resistance between 5.7 and 6.3 ohms at 20 C (68° F)?
Yes
→ Go To
No
→ Replace the Speed Pro Steering Solenoid.
Perform Speed Pro Steering Verification Test- Ver 1.
STEERING SPEED PROPORTIONAL
3
Inspect the wiring from the BCM to the SPS Solenoid and look for any possible ways
the wires could have shorted to ground.
Was any problem found with the wiring?
Yes
→ Repair the Speed Pro Steering Solenoid wiring for an intermittent
short to ground.
Perform Speed Pro Steering Verification Test- Ver 1.
No
→ Go To
4
501
STEERING SPEED PROPORTIONAL
SPEED PRO STEERING
SPEED PRO STEERING SOLENOID OVER-TEMPERATURE —
TEST
4
ACTION
View repair options.
Continued
APPLICABILITY
STEERING SPEED PROPORTIONAL
Repair
If there are no possible causes remaining, replace the Body
Control Module.
Perform the Body Verification Test - Ver 1.
502
VEHICLE THEFT/SECURITY
Symptom:
*ALARM TRIPS ON ITS OWN
POSSIBLE CAUSES
ALARM TRIPS ON ITS OWN
TEST
ACTION
APPLICABILITY
1
With the DRB enter 9Theft Alarm9, 9VTSS9 , 9Monitor Display9 and observe the alarm
trip by status.
Were there any causes displayed?
All
Yes
→ With the DRB, attempt to isolate the intermittent alarm triggering condition.
Perform the VTSS Verification Test - Ver 1.
No
→ Test Complete.
503
VEHICLE THEFT/SECURITY
Symptom:
*HEADLAMP/PARK
TRIPPED
LAMPS
FAIL TO
FLASH
WITH ALARM
POSSIBLE CAUSES
BODY CONTROL MODULE
CHECK THE HEADLAMP/PARK LAMP OPERATION
TEST
1
ACTION
Turn the headlamp and park lamps on.
Do the headlamp and park lamps operate properly?
Yes
→ If there are no possible causes remaining, replace the BCM.
Perform the VTSS Verification Test - Ver 1.
No
→ Refer to the Exterior Lighting category for the related symptom(s)
to the headlamps or park lamps.
Perform the VTSS Verification Test - Ver 1.
504
APPLICABILITY
All
VEHICLE THEFT/SECURITY
Symptom:
*HORN FAILS TO SOUND WITH ALARM TRIPPED
POSSIBLE CAUSES
BODY CONTROL MODULE
CHECK THE HORN OPERATION
WITH THE DRB CHECK THE DECKLID CYLINDER (SECURITY) SWITCH STATUS
WITH A JUMPER WIRE CHECK THE HORN OPERATION
TEST
1
2
3
ACTION
Press the horn button on the steering wheel.
Did the horn sound?
APPLICABILITY
All
Yes
→ Go To
No
→ Refer to the service information regarding horn diagnostics.
Perform the VTSS Verification Test - Ver 1.
2
With the DRB, enter 9Body Computer9 then 9Inputs/Outputs9 and observe the
Decklid Cylinder Switch Status.
Does the DRB display 9Present9?
Yes
→ Go To
No
→ Refer to symptom list for problems related to VTSS indicator
lamp staying on.
Perform the VTSS Verification Test - Ver 1.
All
3
Turn the ignition off.
Remove the BCM from the Junction Block.
Connect a jumper wire between the horn relay control circuit (cavity 18) and ground.
Did the horn sound?
Yes
→ If there are no possible causes remaining, replace the BCM.
Perform the VTSS Verification Test - Ver 1.
No
→ Replace the Junction Block.
Perform the VTSS Verification Test - Ver 1.
505
All
VEHICLE THEFT/SECURITY
Symptom:
*VTSS INDICATOR INOPERATIVE
POSSIBLE CAUSES
OPEN FUSED B+ CIRCUIT
OPEN VTSS INDICATOR DRIVER CIRCUIT
OPEN VTSS INDICATOR LAMP
BODY CONTROL MODULE
TEST
1
2
3
4
ACTION
Turn the ignition off.
Disconnect the sun sensor/VTSS LED harness connector.
Measure the voltage of the Fused B+ circuit.
Is the voltage above 10.0 volts?
Yes
→ Go To
No
→ Repair the Fused B+ circuit for an open.
Perform the VTSS Verification Test - Ver 1.
APPLICABILITY
All
2
Turn the ignition off.
Disconnect the Sun Sensor/VTSS LED harness connector.
Measure the voltage between the fused B+ circuit and the VTSS indicator driver
circuit (cavities 3 & 4).
Turn the ignition on.
With the DRB, enter 9Body Computer9 then 9Actuator Tests9 and actuate the VTSS
lamp.
Does the voltage toggle from below 2.0 volts to above 10.0 volts as the lamp is
actuated on and off?
Yes
→ Replace the VTSS Indicator Lamp.
Perform the VTSS Verification Test - Ver 1.
No
→ Go To
All
3
Turn the ignition off.
Disconnect the sun sensor/VTSS LED harness connector.
Disconnect the BCM 9C29 harness connector.
Measure the resistance of the VTSS Indicator Driver circuit between the sun
sensor/VTSS LED connector and the BCM 9C29 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the VTSS Indicator Driver circuit for an open.
Perform the VTSS Verification Test - Ver 1.
All
4
View repair options.
All
Repair
If there are no possible causes remaining, replace the BCM.
Perform the VTSS Verification Test - Ver 1.
506
VEHICLE THEFT/SECURITY
Symptom:
*VTSS INDICATOR LAMP STAYS ON
POSSIBLE CAUSES
CHECK FOR AN OPEN GROUND CIRCUIT
DECKLID SECURITY SWITCH SENSE CIRCUIT OPEN
CHECK THE VTSS INDICATOR DRIVER CIRCUIT FOR A SHORT TO GROUND
CHECK IF PCM IS ACTIVE ON THE PCI BUS
CHECK THE DECKLID SECURITY SWITCH
BODY CONTROL MODULE
BODY CONTROL MODULE
TEST
1
2
3
4
ACTION
Turn the ignition on.
With the DRB, enter 9Body Computer9, 9System Test9 then 9PCM Monitor9.
Does the DRB display 9PCM Active on the Bus9?
Yes
→ Go To
No
→ Refer to Communications category for the related symptom(s) to
no communications with the PCM.
Perform the VTSS Verification Test - Ver 1.
APPLICABILITY
All
2
With the DRB, enter 9Body Computer9 then 9Inputs/Outputs9 and observe the
Decklid Cylinder Switch Status.
Does the DRB display 9Present9?
Yes
→ Go To
3
No
→ Go To
5
Turn the ignition off.
Disconnect the BCM 9C29 harness connector.
Is the VTSS Indicator lamp still illuminated?
All
All
Yes
→ Repair the VTSS Indicator Driver circuit for a short to ground.
Perform the VTSS Verification Test - Ver 1.
No
→ Go To
4
View repair options.
All
Repair
If there are no possible causes remaining, replace the BCM.
Perform the VTSS Verification Test - Ver 1.
5
Turn the ignition off.
Disconnect the Decklid Security Switch harness connector.
Measure the resistance between ground and the ground circuit.
Is the resistance below 30.0 ohms?
Yes
→ Go To
No
→ Repair the ground circuit for an open.
Perform the VTSS Verification Test - Ver 1.
6
507
All
VEHICLE THEFT/SECURITY
*VTSS INDICATOR LAMP STAYS ON —
Continued
TEST
ACTION
APPLICABILITY
6
Turn the ignition off.
Disconnect the Decklid Security Switch harness connector.
Connect a jumper wire between cavity 1 and cavity 2 of the Decklid Security Switch
harness connector.
Turn the ignition on.
With the DRB, enter 9Body Computer9 then 9Inputs/Outputs9 and observe the
Decklid Cylinder Switch Status.
Does the DRB display 9Present9?
All
7
8
Yes
→ Replace the Decklid Security Switch.
Perform the VTSS Verification Test - Ver 1.
No
→ Go To
7
Turn the ignition off.
Disconnect the Decklid Security Switch harness connector.
Disconnect the BCM 9C49 harness connector.
Measure the resistance of the Decklid Security Switch Sense circuit between the
Decklid Security Switch connector and the BCM 9C49 connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the Decklid Security Switch Sense circuit for an open.
Perform the VTSS Verification Test - Ver 1.
All
8
View repair options.
All
Repair
If there are no possible causes remaining, replace the BCM.
Perform the VTSS Verification Test - Ver 1.
508
VEHICLE THEFT/SECURITY
Symptom:
*VTSS WILL NOT ARM
POSSIBLE CAUSES
CHECK THE DOOR AJAR STATUS
CHECK THE DOOR CYLINDER LOCK SWITCHES
CHECK THE RKE OPERATION
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Ensure all doors are completely closed.
Insert the key in the Driver Door Cylinder Lock Switch and rotate the key from the
lock position to the unlock position and observe the central lock feature (all doors lock
and unlock).
Insert the key in the Passenger Door Cylinder Lock Switch and rotate the key from
the lock position to the unlock position and observe the central lock feature (all doors
lock and unlock).
Did all the doors lock and unlock from both switches?
All
2
3
4
Yes
→ Go To
No
→ Refer to Power Door Lock with RKE category for the related
symptoms regarding the Door Cylinder Lock Switches.
Perform the VTSS Verification Test - Ver 1.
2
Ensure all doors are completely closed.
With the DRB, enter 9Body Computer9 then 9Inputs/Outputs9 and observe all the door
ajar switch states.
Do all the door ajar switches indicate 9Open9?
Yes
→ Go To
No
→ Refer to the Interior Lighting Category for the related symptom
regarding the Door Ajar Switches (courtesy lamps on at all times).
Perform the VTSS Verification Test - Ver 1.
All
3
Press the lock and unlock buttons on the RKE transceiver.
Does the RKE system operate properly?
Yes
→ Go To
No
→ Refer to Power Door Locks with RKE category for the related
symptom(s) to the RKE system.
Perform the VTSS Verification Test - Ver 1.
All
4
View repair options.
All
Repair
If there are no possible causes remaining, replace the BCM.
Perform the VTSS Verification Test - Ver 1.
509
WINDSHIELD WIPER & WASHER
Symptom:
HEADLAMP WASHER MOTOR NOT OPERATING PROPERLY
POSSIBLE CAUSES
CHECKING EXTERIOR LIGHTING OPERATION
CHECKING THE HEADLAMP WASHER MOTOR
CHECKING THE WINDSHIELD WASHER OPERATION
HEADLAMP WASHER MOTOR GROUND CKT OPEN
FUSED B+ CIRCUIT(S) OPEN
HEADLAMP WASHER MOTOR RELAY OUTPUT CKT SHORT TO VOLTAGE
HEADLAMP WASHER MOTOR RELAY OUPUT CKT SHORT TO GROUND
HEADLAMP WASHER MOTOR RELAY OUTPUT CKT OPEN
HEADLAMP WASHER RELAY CONTROL CKT SHORT TO GROUND
HEADLAMP WASHER RELAY CNTRL CKT OPEN
HEADLAMP WASHER RELAY CONTROL CKT SHORT TO VOLTAGE
BCM - RELAY CONTROL OPEN
HEADLAMP WASHER RELAY INTERNAL FAULT
TEST
ACTION
APPLICABILITY
1
Note: The exterior lighting must be working properly for the headlamp
washer motor to operate properly.
Turn the ignition on.
Turn on the park lamps, fog lamps, low beam headlamps and high beam headlamps
and note the operation of the appropriate lamps when selected.
Do the appropriate lamps operate properly when turned on?
All
2
Yes
→ Go To
No
→ Refer to the Exterior Lighting section of this manual for the
related symptom(s).
Perform the Body Verification Test - Ver 1.
2
Turn the ignition on.
Turn the low speed windsheild wipers on.
Push and release the wash button on the multi-function switch.
Did the windshield wipers and washers operate properly?
Yes
→ Go To
No
→ Refer to the beginning of this section for the related symptom(s).
Perform the Body Verification Test - Ver 1.
3
510
All
WINDSHIELD WIPER & WASHER
HEADLAMP WASHER MOTOR NOT OPERATING PROPERLY — Continued
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the headlamp washer motor harness connector.
Connect a 12-volt test light across the headlamp washer motor harness connector.
With the DRBIIIt, actuate the headlamp washer relay.
Does the test light turn on and off during actuation?
All
4
5
6
7
Yes
→ Replace the headlamp washer motor.
Perform the Body Verification Test - Ver 1.
No
→ Go To
4
Turn the ignition off.
Disconnect the headlamp washer motor harness connector.
Using a 12-volt Test Light connected to 12-volts, check the ground circuit at the
headlamp washer motor harness connector.
Is the test light on?
Yes
→ Go To
No
→ Repair the ground circuit for an open.
Perform the Body Verification Test - Ver 1.
All
5
Turn the ignition off.
Remove the headlamp washer relay from the PDC.
Using a 12-volt test light connected to ground, check both fused B(+) circuits in the
PDC connector.
Is the test light on when checking both circuits?
Yes
→ Go To
No
→ Repair the open fused B(+) circuit(s).
Perform the Body Verification Test - Ver 1.
All
6
Turn the ignition off.
Remove the headlamp washer relay from the PDC.
Turn the ignition on.
Measure the voltage of the headlamp washer relay output circuit in the PDC
connector.
Is there any voltage present?
Yes
→ Repair the headlamp washer relay output circuit for a short to
voltage.
Perform the Body Verification Test - Ver 1.
No
→ Go To
All
7
Turn the ignition off.
Remove the headlamp washer relay from the PDC.
Disconnect the headlamp washer motor harness connector.
Measure the resistance between ground and the headlamp washer relay output
circuit.
Is the resistance below 100.0 ohms?
Yes
→ Repair the headlamp washer relay output circuit for a short to
ground.
Perform the Body Verification Test - Ver 1.
No
→ Go To
8
511
All
WINDSHIELD WIPER & WASHER
HEADLAMP WASHER MOTOR NOT OPERATING PROPERLY — Continued
TEST
ACTION
APPLICABILITY
8
Turn the ignition off.
Remove the headlamp washer relay from the PDC.
Disconnect the headlamp washer motor harness connector.
Connect a jumper wire between ground and the headlamp washer relay output
circuit at the headlamp washer motor harness connector.
Using a 12-volt test light connected to 12-volts, check the headlamp washer relay
output circuit at the PDC.
Is the test light on?
All
9
10
11
12
Yes
→ Go To
No
→ Repair the headlamp washer relay output circuit for an open.
Perform the Body Verification Test - Ver 1.
9
Turn the ignition off.
Remove the headlamp washer relay from the PDC.
Disconnect the BCM C3 harness connector.
Measure the resistance between ground and the headlamp washer relay control
circuit.
Is the resistance below 100.0 ohms?
Yes
→ Repair the headlamp washer relay control circuit for a short to
ground.
No
→ Go To
All
10
Turn the ignition off.
Remove the headlamp washer relay from the PDC.
Disconnect the BCM C3 harness connector.
Measure the resistance of the headlamp washer relay control circuit between the
BCM C3 harness connector and the PDC connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the headlamp washer relay control circuit for an open.
All
11
Turn the ignition off.
Remove the headlamp washer relay from the PDC.
Disconnect the BCM C3 harness connector.
Turn the ignition on.
Measure the voltage of the headlamp washer relay control circuit.
Is the voltage above 1.0 volt?
Yes
→ Repair the headlamp washer relay control circuit for a short to
voltage.
No
→ Go To
All
12
turn the ignition off.
Ensure the BCM is fully connected before proceeding
Remove the headlamp washer relay from the PDC.
With the DRBIIIt, actuate the headlamp washer relay.
Using a 12-volt test light connected to 12-volts, check the headlamp washer relay
control circuit at the PDC connector.
Note: The test light should flash on and off during actuation.
Does the test light flash on and off during actuation?
Yes
→ Go To
No
→ Replace the Body Control Module (BCM).
Perform the Body Verification Test - Ver 1.
13
512
All
WINDSHIELD WIPER & WASHER
HEADLAMP WASHER MOTOR NOT OPERATING PROPERLY — Continued
TEST
13
ACTION
If there are no possible causes remaining, view 9Repair9.
Repair
Replace the headlamp washer relay.
Perform the Body Verification Test - Ver 1.
513
APPLICABILITY
All
WINDSHIELD WIPER & WASHER
Symptom:
WIPER PARK SWITCH FAILURE/WIPERS RUN CONTINUOUSLY
When Monitored and Set Condition:
WIPER PARK SWITCH FAILURE/WIPERS RUN CONTINUOUSLY
When Monitored: The ignition must be in the run position and battery voltage supplied
to the BCM on the Fused B(+) circuit.
Set Condition: The code will set if the BCM does not detect a low to high voltage
transition on the Wiper Park Switch Sense circuit within 8 seconds after energizing the
wiper relay On/Off relay.
POSSIBLE CAUSES
WIPER PARK SWITCH SENSE CIRCUIT OPEN
WIPER PARK SWITCH SENSE CIRCUIT SHORT TO GROUND
WIPER PARK SWITCH SENSE CIRCUIT SHORT TO VOLTAGE
GROUND CIRCUIT OPEN
VERIFYING ACTIVE DTC - WIPER PARK SWITCH FAILURE
WIPER MOTOR DEFECTIVE, WIPER PARK SWITCH SENSE CIRCUIT OPEN
BCM DEFECTIVE- WIPER PARK SWITCH
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIIIt, erase BCM DTC’s.
Turn the ignition off, then turn the ignition on.
Turn the windshield wiper switch to each intermittent position, then low and high
speed positions.
Turn the windshield wiper switch to the off position.
With the DRBIIIt, read BCM DTC’s.
Does the DRB display 9WIPER PARK SWITCH FAILURE9?
All
2
Yes
→ Go To
No
→ Test Complete, code not present at this time.
2
Turn the ignition off.
Disconnect the windshield wiper motor harness connector.
Disconnect the BCM C3 harness connector.
Measure the resistance of the wiper park switch sense circuit between the BCM C3
harness connector and the wiper motor harness connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the wiper park switch sense circuit for an open.
Perform BODY VERIFICATION TEST
3
514
All
WINDSHIELD WIPER & WASHER
WIPER PARK SWITCH FAILURE/WIPERS RUN CONTINUOUSLY —
Continued
TEST
3
4
5
6
7
ACTION
Turn the ignition off.
Disconnect the windshield wiper motor harness connector.
Disconnect the BCM C3 harness connector.
Measure the resistance between ground and the wiper park switch sense circuit.
Is the resistance below 100.0 ohms?
Yes
→ Repair the wiper park switch sense circuit for a short to ground.
Perform BODY VERIFICATION TEST
No
→ Go To
APPLICABILITY
All
4
Turn the ignition off.
Disconnect the windshield wiper motor harness connector.
Disconnect the BCM C3 harness connector.
Turn the ignition on.
Measure the voltage of the wiper park switch sense circuit.
Is there any voltage present?
Yes
→ Repair the wiper park switch sense circuit for a short to voltage.
Perform BODY VERIFICATION TEST
No
→ Go To
All
5
Turn the ignition off.
Disconnect the windshield wiper motor harness connector.
Note: Check connectors - Clean/repair as necessary.
Note: Ensure the ignition, all lights and accessories are turned off.
Using a 12-volt test light connected to 12-volts, check the ground circuit at the
windsheild wiper motor harness connector.
Is the test light on?
Yes
→ Go To
No
→ Repair the open Wiper Motor Ground Circuit.
Perform BODY VERIFICATION TEST
All
6
Turn the ignition off.
Disconnect the windsheild wiper motor harness connector.
Turn the ignition on.
With the DRBIIIt in Inputs/Outputs, read the wiper park switch state.
Connnect one end of a jumper wire to the wiper park switch sense circuit at the
windsheild wiper motor harness connector.
While observing the DRB III, connect the other end of the jumper wire to ground for
several seconds, then disconnect the jumper wire from ground.
Did wiper park switch input change state when connected to ground then disconnected from ground?
Yes
→ Go To
No
→ Replace the Body Control Module.
Perform BODY VERIFICATION TEST.
All
7
If there are no possible causes remaining, view repair.
Repair
Replace the Wiper Motor.
Perform BODY VERIFICATION TEST
515
All
WINDSHIELD WIPER & WASHER
Symptom:
*WASHER, INOPERATIVE
POSSIBLE CAUSES
GROUND CIRCUIT OPEN
WASHER PUMP OPEN
FUSED IGNITION SWITCH OUTPUT RUN/ACC CIRCUIT OPEN
WASHER PUMP SWITCH OPEN
WASHER PUMP CONTROL SWITCH OUTPUT CIRCUIT OPEN
FUSED IGNITION SWITCH OUTPUT RUN/ACC SHORT TO GROUND
WASHER PUMP SHORTED
WASHER PUMP MOTOR CONTROL CIRCUIT SHORT TO GROUND
IGNITION SWITCH OUTPUT RUN/ACC CIRCUIT OPEN
WASHER PUMP SWITCH INTERNALLY SHORTED
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
Using a 12-volt test light connected to ground, check the ignition switch output
ACC/RUN circuit at the junction block fuse #5 connector.
Is the test light on?
All
2
Yes
→ Go To
No
→ Repair the open ignition switch output Run/Acc circuit .
Perform BODY VERIFICATION TEST
2
Turn the ignition off.
Remove and inspect junction block fuse #5.
Is the fuse open?
Yes
→ Go To
3
No
→ Go To
7
All
Note: Reinstall the fuse if it is not open.
3
Turn the ignition off.
Disconnect the multi-function switch harness connector.
Remove junction block fuse #5.
Measure the resistance between ground and the fused ignition switch output
ACC/RUN circuit.
Is the resistance below 100.0 ohms?
Yes
→ Repair the Fused Ignition Switch Output Run/ACC circuit
shorted to ground..
Perform BODY VERIFICATION TEST
No
→ Go To
4
516
All
WINDSHIELD WIPER & WASHER
*WASHER, INOPERATIVE —
Continued
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the multi-function switch harness connector and remove the multifunction switch from the steering column.
Ensure that the washer switch is in the off position.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the multi-function switch between terminal #1 and each of
the remaining six terminals in the 7-way connector (component side).
Is the resistance below 100.0 ohms for any of the measurements?
All
5
6
Yes
→ Replace the Right Multi-Function Switch.
Perform BODY VERIFICATION TEST
No
→ Go To
5
Turn the ignition off.
Disconnect the washer pump harness connector.
Disconnect the BCM C2 harness connector.
Disconnect the multi-function switch harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the washer pump control switch output
circuit.
Is the resistance below 100.0 ohms?
Yes
→ Repair Washer Pump Control Switch Output circuit shorted to
ground.
Perform BODY VERIFICATION TEST
No
→ Go To
All
6
If there are no possible causes remaining, view repair.
All
Repair
Test Complete.
7
8
Turn the ignition off.
Disconnect the washer pump harness connector.
Note: Check connectors - Clean/repair as necessary
Using a 12-volt test light connected to 12-volts, check the washer pump ground
circuit.
Is the test light on?
Yes
→ Go To
No
→ Repair open ground circuit.
Perform BODY VERIFICATION TEST
All
8
Turn the ignition off.
Disconnect the multi-function switch harness connector.
Turn the ignition on.
Using a 12-volt test light connected to ground, check the fused ignition switch output
circuit.
Is the test light on?
Yes
→ Go To
No
→ Repair the open Fused Ignition Switch Output Run/Acc.
Perform BODY VERIFICATION TEST
9
517
All
WINDSHIELD WIPER & WASHER
*WASHER, INOPERATIVE —
Continued
TEST
ACTION
APPLICABILITY
9
Turn the ignition off.
Disconnect the multi-function switch harness connector and remove the multifunction switch from the steering column.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the multi-function switch between terminals #1 and #2.
Monitor the ohmmeter while pushing and releasing the washer switch.
Note: The resistance reading should change from above 100.0 ohms when
the washer switch is released to below 5.0 ohms when the switch is pressed.
Did the resistance readings change from above 100.0 ohms to below 5.0 ohms as
described in Note?
All
10
11
Yes
→ Go To
No
→ Replace the multi-function swtich.
Perform BODY VERIFICATION TEST
10
Turn the ignition off.
Disconnect the windshield washer pump motor harness connector.
Note: Check connectors - Clean/repair as necessary.
Turn the ignition on.
Using a 12-volt test light connected to ground, check the washer pump motor control
output circuit at the windshield washer pump motor harness connector.
Monitor the test light while pressing and releasing the washer switch.
does the test light turn on and off while pressing and releasing the washer switch?
Yes
→ Go To
No
→ Repair the open washer pump motor control output circuit.
Perform BODY VERIFICATION TEST
All
11
Disconnect the washer pump harness connector.
Note: Check connectors - Clean/repair as necessary.
Using a 12-volt test light connected to ground, check the washer pump control switch
output circuit at the windshield wiper motor harness connector.
Monitor the test light while pressing and releasing the washer switch.
Does the test light turn on and off when pressing and releasing the washer switch?
Yes
→ Replace the Winshield Washer Pump/Motor.
Perform BODY VERIFICATION TEST.
No
→ Test Complete.
518
All
WINDSHIELD WIPER & WASHER
Symptom:
*WASHER, RUNS ALL THE TIME WITH IGNITION ON
POSSIBLE CAUSES
WASHER PUMP MOTOR CONTROL OUTPUT CIRCUIT SHORTED TO VOLTAGE
WASHER PUMP SWITCH SHORT TO VOLTAGE
TEST
ACTION
APPLICABILITY
1
Ensure that the washer switch is in the off position.
Turn the ignition on.
Disconnect the multi-function switch harness connector.
Does the wiper and washers stop working when the multi-function switch is
disconnected?
All
2
Yes
→ Go To
No
→ Repair washer pump motor control output circuit short to voltage.
Perform BODY VERIFICATION TEST
2
Ensure that the windshield washer switch is in the off position.
Turn the ignition on.
Disconnect the multi-function switch harness connector.
Did the wiper and washers stop working when the multi-function switch is disconnected?
Yes
→ Replace the multi-function switch.
Perform BODY VERIFICATION TEST
No
→ Test Complete.
519
All
WINDSHIELD WIPER & WASHER
Symptom:
*WIPER, NOT WORKING IN THE LOW SPEED
POSSIBLE CAUSES
BCM DEFECTIVE HI/LO DRIVER (LOW)
FUSED B(+) CKT OPEN
MULTI-FUNCTION SWITCH LOW SWITCH OPEN
WIPER HIGH/LOW RELAY DEFECTIVE
WIPER HIGH/LOW RELAY CONTROL CIRCUIT SHORTED TO GROUND
LOW SPEED OUTPUT CIRCUIT OPEN
DEFECTIVE WIPER MOTOR- LOW SPEED
TEST
ACTION
APPLICABILITY
1
Remove the wiper high/low relay.
Connect a jumper wire between the fused B(+) circuit at cavity A and the wiper low
speed output circuit at cavity E.
Observe windshield wiper operation.
Are the windshield wipers operating at low speed?
All
2
3
Yes
→ Go To
2
No
→ Go To
6
Turn the ignition off.
Install a known good relay in place of the wiper high/low relay.
Turn the ignition on.
Turn the multi-function switch to the low wiper setting, then to the high wiper
setting. Observe wiper operation for each setting.
Do the low speed and high speed wipers operate correctly?
Yes
→ Replace the defective Wiper HIGH/LOW Relay.
Perform BODY VERIFICATION TEST
No
→ Go To
All
3
Turn the ignition off.
Disconnect the multi-function switch harness connector and remove the multifunction switch from the steering column.
Set the multi-function switch to the low speed position.
Measure the resistance between terminals #1 and #3 of the multi-function switch
connector (component side).
Is the resistance between 980.0 and 1060.0 ohms?
Yes
→ Go To
No
→ Replace the multi-function switch.
Perform BODY VERIFICATION TEST
4
520
All
WINDSHIELD WIPER & WASHER
*WIPER, NOT WORKING IN THE LOW SPEED —
Continued
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Remove the wiper high/low relay from the PDC.
Disconnect the BCM C3 harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the wiper high/low relay control circuit.
Is the resistance below 100.0 ohms?
All
5
Yes
→ Repair the Wiper High/Low Relay Control circuit shorted to
ground.
Perform BODY VERIFICATION TEST
No
→ Go To
5
If there are no possible causes, view repair
All
Repair
Replace the Body Control Module.
Perform BODY VERIFICATION TEST.
6
7
8
Remove the wiper high/low relay from the PDC.
Using a 12-volt test light connected to ground, check the fused B(+) circuit.
Is the test light on?
Yes
→ Go To
No
→ Repair the fused B(+) circuit for an open.
Perform the Body Verification Test - Ver 1.
All
7
Turn the ignition off.
Remove the wiper high/low relay from the PDC..
Disconnect the wiper motor harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the low speed output circuit between the wiper motor and
the PDC high/low relay connector (cavity E).
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Low Speed Output circuit between the High/Low
Relay in the Power Distribution Center and the Wiper Motor
connector.
Perform BODY VERIFICATION TEST
All
8
If there are no possible causes, view repair
All
Repair
Replace the Wiper Motor.
Perform BODY VERIFICATION TEST.
521
WINDSHIELD WIPER & WASHER
Symptom:
*WIPER, ERRATIC OPERATION IN INTERMITTENT SPEEDS
POSSIBLE CAUSES
WIPER MOTOR - ERRATIC PARK SW
WIPER PARK SWITCH SENSE CIRCUIT OPEN
WIPER PARK SWITCH SENSE CIRCUIT SHORT TO GROUND
WIPER ON/OFF RELAY DEFECTIVE
BCM DEFECTIVE- WIPER PARK SWITCH-ERRATIC
TEST
1
2
3
ACTION
Substitute the wiper on/off relay with a known good relay.
Turn the ignition on.
Turn the wipers on.
Does the system now operate correctly?
Yes
→ Replace the Wiper On/Off Relay.
Perform BODY VERIFICATION TEST.
No
→ Go To
APPLICABILITY
All
2
Turn the ignition off.
Disconnect the windshield wiper motor harness connector.
Disconnect the BCM C3 harness connector.
Measure the resistance of the wiper park switch sense circuit between the BCM C3
harness connector and the wiper motor harness connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the wiper park switch sense circuit for an open.
Perform BODY VERIFICATION TEST
All
3
Turn the ignition off.
Disconnect the windshield wiper motor harness connector.
Disconnect the BCM C3 harness connector.
Measure the resistance between ground and the wiper park switch sense circuit.
Is the resistance below 100.0 ohms?
Yes
→ Repair the wiper park switch sense circuit for a short to ground.
Perform BODY VERIFICATION TEST
No
→ Go To
4
522
All
WINDSHIELD WIPER & WASHER
*WIPER, ERRATIC OPERATION IN INTERMITTENT SPEEDS — Continued
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the windsheild wiper motor harness connector.
Turn the ignition on.
With the DRBIIIt in Inputs/Outputs, read the wiper park switch state.
Connnect one end of a jumper wire to the wiper park switch sense circuit at the
windsheild wiper motor harness connector.
While observing the DRB III, connect the other end of the jumper wire to ground for
several seconds, then disconnect the jumper wire from ground.
Did wiper park switch input change state when connected to ground then disconnected from ground?
All
Yes
→ Replace the wiper motor.
Perform BODY VERIFICATION TEST
No
→ Replace the Body Control Module.
Perform BODY VERIFICATION TEST.
523
WINDSHIELD WIPER & WASHER
Symptom:
*WIPER, NO WIPE AFTER WASH
POSSIBLE CAUSES
VERIFY WIPER OPERATION IN ALL MODES
WASHER PUMP CONTROL SWITCH OUTPUT CIRCUIT OPEN AT BCM
OPEN WASHER PUMP CONTROL CIRCUIT
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
Turn the wiper switch to each intermittent position, then to the low speed and high
speed positions.
Note: Observe wiper operation when selecting each speed of operation.
Do the wipers operate correctly at all selected speeds?
All
2
3
Yes
→ Go To
No
→ Refer to symptom list for problems related to wiper operation.
2
Turn the ignition off.
Disconnect the body control module C2 harness connector.
Note: Check connectors - Clean/repair as necessary.
Turn the ignition on.
Using a 12-volt test light connected to ground, check the washer pump control switch
output circuit at the body control module C2 harness connector.
Monitor the test light while pressing and releasing the washer switch.
Does the test light flash on and off while pressing and releasing the washer switch?
Yes
→ Go To
No
→ Repair the open washer pump control switch output circuit at the
body control module C2 harness connector.
Perform BODY VERIFICATION TEST
All
3
If there are no possible causes remaining, replace the BCM.
View repair options
Replace the BCM.
Perform BODY VERIFICATION TEST.
524
All
WINDSHIELD WIPER & WASHER
Symptom:
*WIPER, NOT WORKING AT ALL
POSSIBLE CAUSES
FUSED B(+) CIRCUIT OPEN
GROUND CIRCUIT OPEN
WIPER HIGH/LOW RELAY DEFECTIVE
FUSED IGNITION SWITCH OUTPUT RUN/ACC CIRCUIT OPEN
WIPER ON/OFF RELAY DEFECTIVE
COMMON CIRCUIT SHORTED TO GROUND
OPEN COMMON CKT OPEN
WINDSHIELD WIPER SWITCH MUX CIRCUIT OPEN
WINDSHIELD WIPER SWITCH MUX CIRCUIT SHORTED TO GROUND
WIPER ON/OFF RELAY CONTROL CIRCUIT OPEN
WIPER ON/OFF RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE
DEFECTIVE WIPER MOTOR- NOT WORKING AT ALL
BCM DEFECTIVE-WIPER MUX CIRCUIT OPEN
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Remove the wiper on/off relay.
Connect a jumper wire between cavity D (87) and cavity B (30) of the wiper on/off
relay connector in the PDC.
Observe windshield wiper operation.
Do the wipers operate with the jumper wire connected?
All
2
3
Yes
→ Go To
2
No
→ Go To
14
With the DRBIIIt, read the intermittent wiper switch status while slowly turning
the wiper switch from the off position to the high speed position.
Note: The switch voltage displayed on the DRB III should increase from
approximately 0.0 volts to 8.5 volts as the switch is turned from the off
position to the high speed position.
Did the switch voltage change from aprroximately 0.0 volts to 8.5 volts as described?
Yes
→ Go To
3
No
→ Go To
8
Remove the wiper on/off relay from the PDC.
Using a 12-volt test light connected to ground, check both fused B(+) circuits at the
wiper on/off relay connector in the PDC.
Is the test light on when checking each circuit?
Yes
→ Go To
No
→ Repair the open fused B(+) circuit(s).
Perform the Body Verification Test - Ver 1.
4
525
All
All
WINDSHIELD WIPER & WASHER
*WIPER, NOT WORKING AT ALL —
TEST
4
5
6
7
8
Continued
ACTION
Substitute the wiper on/off relay with a known good relay.
Turn the ignition on.
Turn the wipers on.
Does the system now operate correctly?
Yes
→ Replace the Wiper On/Off Relay.
Perform BODY VERIFICATION TEST.
No
→ Go To
APPLICABILITY
All
5
Turn the ignition off.
Remove the wiper on/off relay from the PDC.
Disconnect the BCM C3 harness connector.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the wiper on/off relay control circuit at the BCM C3
harness connector and ground.
Measure the resistance bewteen ground and the wiper on/off relay control circuit at
the PDC.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Wiper On/Off Relay Control circuit.
Perform BODY VERIFICATION TEST
All
6
Turn the ignition off.
Remove the wiper on/off relay from the PDC.
Disconnect the BCM C3 harness connector.
Note: Check connectors - Clean/repair as necessary.
Turn the ignition on.
Measure the voltage of the wiper on/off relay control circuit at the BCM C3 harness
connector.
Is the voltage above 1.0 volt?
Yes
→ Repair the Wiper On/Off Relay Control circuit shorted to battery.
Perform BODY VERIFICATION TEST
No
→ Go To
All
7
Remove the wiper on/off relay from the PDC.
Using a 12-volt test light connected to 12-volts, probe the wiper on/off relay control
circuit at the wiper on/off relay connector in the PDC.
With the DRBIIIt, actuate the wiper on/off relay.
Observe the test light.
Does the test light turn on and off during actuation?
Yes
→ Test Complete.
No
→ Replace the Body Control Module.
Perform BODY VERIFICATION TEST
Turn the ignition off.
Disconnect the multi-function switch harness connector.
Disconnect the BCM C3 harness connector.
Turn the ignition on.
Measure the voltage of the wiper mux switch signal circuit.
Is the voltage above 1.0 volt?
Yes
→ Repair the Wiper Mux Switch Signal Ckt for short to voltage.
Perform BODY VERIFICATION TEST
No
→ Go To
9
526
All
All
WINDSHIELD WIPER & WASHER
*WIPER, NOT WORKING AT ALL —
Continued
TEST
ACTION
APPLICABILITY
9
Turn the ignition off.
Disconnect the multi-function switch harness connector.
Turn the ignition on.
Using a 12-volt test light connected to ground, check the fused ignition switch output
circuit.
Is the test light on?
All
10
11
12
13
Yes
→ Go To
No
→ Repair the open Fused Ignition Switch Output Run/Acc.
Perform BODY VERIFICATION TEST
10
Turn the ignition off.
Disconnect the multi-function switch harness connector.
Disconnect the BCM C2 harness connector.
Measure the resistance of the windshield wiper switch mux circuit between the BCM
C2 harness connector and the right multi-function harness connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Windshield Wiper Switch Mux circuit.
Perform BODY VERIFICATION TEST
All
11
Turn the ignition off.
Disconnect the multi-function switch harness connector.
Disconnect the BCM C2 harness connector.
Measure the resistance of the wiper mux switch signal circuit between the BCM C2
harness connector and ground.
Is the resistance below 100.0 ohms?
Yes
→ Repair the Windshield Wiper Switch Mux circuit shorted to
ground.
Perform BODY VERIFICATION TEST
No
→ Go To
All
12
Turn the ignition off.
Disconnect the multi-function switch harness connector.
Turn the ignition on.
With the DRBIII, read the intermittent wiper switch volts.
Using a 12-volt test light connected to 12-volts, momentarily connect and disconnect
the test light to the wiper mux switch signal circuit at the multi-function switch
harness connector.
Does the DRBIII show intermittent wiper switch volts change from 0.0 volts to above
10.0 volts?
Yes
→ Go To
No
→ Replace the Body Control Module.
Perform BODY VERIFICATION TEST.
All
13
If there are no other possible causes, view repair.
Repair
Test Complete.
527
All
WINDSHIELD WIPER & WASHER
*WIPER, NOT WORKING AT ALL —
Continued
TEST
ACTION
APPLICABILITY
14
Remove the wiper on/off relay from the PDC.
Using a 12-volt test light connected to ground, check both fused B(+) circuits at the
wiper on/off relay connector in the PDC.
Is the test light on when checking each circuit?
All
15
16
17
18
Yes
→ Go To
No
→ Repair the open fused B(+) circuit(s).
Perform the Body Verification Test - Ver 1.
15
Turn the ignition off.
Install a known good relay in place of the wiper high/low relay.
Turn the ignition on.
Turn the multi-function switch to the low wiper setting, then to the high wiper
setting. Observe wiper operation for each setting.
Do the low speed and high speed wipers operate correctly?
Yes
→ Replace the defective Wiper HIGH/LOW Relay.
Perform BODY VERIFICATION TEST
No
→ Go To
All
16
Turn the ignition off.
Disconnect the windshield wiper motor harness connector.
Note: Check connectors - Clean/repair as necessary.
Note: Ensure the ignition, all lights and accessories are turned off.
Using a 12-volt test light connected to 12-volts, check the ground circuit at the
windsheild wiper motor harness connector.
Is the test light on?
Yes
→ Go To
No
→ Repair the open Wiper Motor Ground Circuit.
Perform BODY VERIFICATION TEST
All
17
Turn the ignition off.
Remove the wiper high/low and on/off relays from the PDC.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the common circuit between the high/low relay connector
(in PDC) and the on/off relay (in PDC).
Is the resistance below 10.0 ohms?
Yes
→ Go To
No
→ Repair the open Common Circuit between the High/Low and
On/Off Relays in the Power Distribution Center.
Perform BODY VERIFICATION TEST
All
18
Turn the ignition off.
Remove the wiper high/low and on/off relays from the PDC.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the common circuit between ground and the high/low relay
connector (in PDC).
Is the resistance below 10.0 ohms?
Yes
→ Repair the Common Circuit shorted to ground at the Power
Distribution Center.
Perform BODY VERIFICATION TEST
No
→ Go To
19
528
All
WINDSHIELD WIPER & WASHER
*WIPER, NOT WORKING AT ALL —
Continued
TEST
ACTION
APPLICABILITY
19
Turn the ignition on.
Disconnect the windshield wiper motor harness connector.
Turn the wiper switch to the low speed position. Using a 12-volt test light connected
to ground, check the low speed output circuit at the wiper motor harness connector.
Turn the wiper switch to the high speed position. Using a 12-volt test light connected
to ground, check the high speed output circuit at the wiper motor harness connector.
Is the test light on for each circuit?
All
Yes
→ Replace the Wiper Motor.
Perform BODY VERIFICATION TEST.
No
→ Test Complete.
529
WINDSHIELD WIPER & WASHER
Symptom:
*WIPER, NOT WORKING IN THE HIGH SPEED
POSSIBLE CAUSES
BCM DEFECTIVE HI/LO DRIVER (HIGH)
FUSED B(+) CKT OPEN
HIGH SPEED OUTPUT CIRCUIT SHORTED TO VOLTAGE
MULTI-FUNCTION SWITCH HIGH SWITCH OPEN
WIPER HIGH/LOW RELAY CONTROL CKT SHORT TO VOLTAGE
WIPER HIGH/LOW RELAY DEFECTIVE
WIPER HIGH/LOW RELAY CONTROL CIRCUIT OPEN
HIGH SPEED OUTPUT CIRCUIT OPEN
HIGH SPEED OUTPUT SHORTED TO GROUND
DEFECTIVE WIPER MOTOR- HI SPEED RELAY
TEST
ACTION
APPLICABILITY
1
Remove the wiper high/low relay.
Connect a jumper wire between the fused B(+) circuit at cavity A and the wiper high
speed output circuit at cavity D.
Observe windshield wiper operation.
Are the windshield wipers operating at high speed?
All
2
3
Yes
→ Go To
2
No
→ Go To
7
Turn the ignition off.
Install a known good relay in place of the wiper high/low relay.
Turn the ignition on.
Turn the multi-function switch to the low wiper setting, then to the high wiper
setting. Observe wiper operation for each setting.
Do the low speed and high speed wipers operate correctly?
Yes
→ Replace the defective Wiper HIGH/LOW Relay.
Perform BODY VERIFICATION TEST
No
→ Go To
All
3
Turn the ignition off.
Disconnect the multi-function switch harness connector and remove the multifunction switch from the steering column.
Set the multi-function switch to the high speed position.
Measure the resistance between terminals #1 and #3 of the multi-function switch
connector (component side).
Is the resistance between 480.0 and 540.0 ohms?
Yes
→ Go To
No
→ Replace the multi-function switch.
Perform BODY VERIFICATION TEST
4
530
All
WINDSHIELD WIPER & WASHER
*WIPER, NOT WORKING IN THE HIGH SPEED —
TEST
4
5
6
Continued
ACTION
Turn the ignition off.
Remove the wiper high/low relay from the PDC.
Disconnect the BCM C3 harness connector.
Turn the ignition on.
Measure the voltage of the wiper high/low relay control circuit.
Is there any voltage present?
Yes
→ Repair the wiper high/low relay control circuit for a short to
voltage.
Perform BODY VERIFICATION TEST
No
→ Go To
APPLICABILITY
All
5
Turn the ignition off.
Remove the wiper high/low relay from the PDC.
Disconnect the BCM C3 harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the wiper high/low relay control circuit between the PDC
connector and the BCM C3 harness connector.
Is the resistance below 5.0 ohms?
Yes
→ Go To
No
→ Repair the open Wiper High/Low Relay Control circuit.
Perform BODY VERIFICATION TEST
All
6
If there are no possible causes, view repair
All
Repair
Replace the Body Control Module.
Perform BODY VERIFICATION TEST.
7
8
Remove the wiper high/low relay from the PDC.
Using a 12-volt test light connected to ground, check the fused B(+) circuit.
Is the test light on?
Yes
→ Go To
No
→ Repair the fused B(+) circuit for an open.
Perform the Body Verification Test - Ver 1.
All
8
Turn the ignition off.
Remove the wiper high/low relay.
Disconnect the wiper motor harness connector.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the wiper high speed output circuit at the wiper
harness connector and ground.
Using a 12-volt test light connected to 12-volts, check the high speed output circuit
at the wiper high/low relay connector in the PDC.
Is the test light on?
Yes
→ Go To
No
→ Repair the open High Speed Output circuit between the High/Low
Relay in the Power Distribution Center and the Wiper Motor
connector.
Perform BODY VERIFICATION TEST
9
531
All
WINDSHIELD WIPER & WASHER
*WIPER, NOT WORKING IN THE HIGH SPEED —
TEST
9
10
11
Continued
ACTION
Turn the ignition off.
Remove the wiper high/low relay.
Disconnect the wiper motor harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the wiper high speed output circuit.
Is the resistance below 100.0 ohms?
Yes
→ Repair the High Speed Output circuit shorted to ground.
Perform BODY VERIFICATION TEST
No
→ Go To
APPLICABILITY
All
10
Turn the ignition off.
Remove the wiper high/low relay from the PDC.
Disconnect the wiper motor harness connector.
Note: Check connectors - Clean/repair as necessary.
Turn the ignition on.
Measure the voltage of the wiper high speed output circuit at the PDC high/low relay
connector (cavity 87).
Is there any voltage present?
Yes
→ Repair the High Speed Output circuit shorted to battery.
Perform BODY VERIFICATION TEST
No
→ Go To
All
11
If there are no possible causes remaining, view repair.
Repair
Replace the Wiper Motor.
Perform BODY VERIFICATION TEST.
532
All
WINDSHIELD WIPER & WASHER
Symptom:
*WIPER, RUNS ALL THE TIME WITH IGNITION ON
POSSIBLE CAUSES
BCM DEFECTIVE - ON/OFF DRIVER LOW
WIPER ON/OFF RELAY DEFECTIVE, NORMALLY OPEN CONTACTS SHORTED
COMMON CIRCUIT SHORTED TO VOLTAGE
HIGH SPEED OUTPUT CIRCUIT SHORTED TO VOLTAGE
LOW SPEED OUTPUT CIRCUIT SHORTED TO VOLTAGE
WIPER ON/OFF RELAY CONTROL CIRCUIT SHORTED TO GROUND
TEST
1
2
3
ACTION
Install a known good relay in place of the wiper on/off relay.
Does the system now operate correctly?
Yes
→ Replace the Wiper On/Off Relay.
Perform BODY VERIFICATION TEST.
No
→ Go To
APPLICABILITY
All
2
Turn the ignition off.
Remove the wiper on/off and high/low relays.
Note: Check connectors - Clean/repair as necessary.
Turn the ignition on.
Measure the voltage of the common circuit at the wiper high/low relay connector in
the PDC.
Is the voltage above 10.0 volts?
Yes
→ Repair the Common Circuit shorted to battery at the Power
Distribution Center.
Perform BODY VERIFICATION TEST
No
→ Go To
All
3
Turn the ignition off.
Remove the wiper high/low relay from the PDC.
Disconnect the wiper motor harness connector.
Note: Check connectors - Clean/repair as necessary.
Turn the ignition on.
Measure the voltage of the wiper high speed output circuit at the PDC high/low relay
connector (cavity 87).
Is there any voltage present?
Yes
→ Repair the High Speed Output circuit shorted to battery.
Perform BODY VERIFICATION TEST
No
→ Go To
4
533
All
WINDSHIELD WIPER & WASHER
*WIPER, RUNS ALL THE TIME WITH IGNITION ON —
TEST
4
5
6
Continued
ACTION
Turn the ignition off.
Remove the wiper high/low relay.
Disconnect the wiper motor harness connector.
Note: Check connectors - Clean/repair as necessary.
Turn the ignition on.
Measure the voltage of the low speed output circuit at the PDC.
Is there any voltage present?
Yes
→ Repair the Low Speed Output circuit shorted to battery.
Perform BODY VERIFICATION TEST
No
→ Go To
APPLICABILITY
All
5
Turn the ignition off.
Remove the wiper on/off relay from the PDC.
Disconnect the BCM C3 harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the wiper on/off relay control circuit.
Is the resistance below 100.0 ohms?
Yes
→ Repair the Wiper On/Off Relay Control circuit shorted to ground.
Perform BODY VERIFICATION TEST
No
→ Go To
All
6
If there are no possible causes remaining, view repair
Repair
Replace the Body Control Module.
Perform BODY VERIFICATION TEST.
534
All
VERIFICATION TESTS
Verification Tests
42LE TRANSMISSION VERIFICATION TEST - VER 1.
APPLICABILITY
1. Connect the DRBIIIt to the Data Link Connector (DLC).
2. Reconnect any disconnected components.
3. With the DRBIIt, erase all Transmission DTC’s, also erase the PCM DTC P-0700 which
turns on the MIL indicator.
4. With the DRBIIIt, display transmission temperature. Start and run the engine until the
transmission temperature is HOT (above 110 deg. F).
5. Check the transmission fluid and adjust if necessary. Add oil slowly (1 pint at a time) to avoid
overfilling, especially when cold. Once oil is visible on the dipstick, do not add oil until
transmission oil temp is 180 degrees.
6. Note: If the transmission control module or torque converter has been replaced or
if the transmission has been repaired or replaced it is necessary to perform the
DRBIIIt quick learn procedure.
7. Road test the vehicle. With the DRBIIIt, monitor the engine RPM. Make 15 to 20 1-2, 2-3,
3-4 upshifts. Perform these shifts from a standing start to 45 MPH with a constant throttle
opening of 20 to 25 degrees.
8. Below 25 MPH, make 5 to 8 wide open throttle kickdowns to 1st gear. Allow at least 5 seconds
each in 2nd and 3rd gear between each kickdown.
9. For a specific DTC, drive the vehicle to the Symptom’s When Monitored/When Set conditions
to verify the DTC repair.
10. Check for Diagnostic Trouble Codes (DTC’s) during the road test. If a DTC sets during the
road test , return to the Symptom list and follow the path.
Were any Trouble Codes set during the road test?
All
Yes
→ Refer to the Symptom List for appropriate diagnostic tests.
Perform the 42LE Transmission Verification Test - Ver 1.
No
→ Repair is complete.
ABS VERIFICATION TEST - VER 1.
APPLICABILITY
1. Turn the ignition off.
2. Connect all previously disconnected components and connectors.
3. Turn the ignition on.
4. With the DRBIIIt, erase DTC’s.
5. With the DRBIIIt, read DTC’s.
6. If any Diagnostic Trouble Codes are present, return to Symptom list and troubleshoot new
or recurring symptom.
7. If there are no DTC’s present after turning ignition on, road test the vehicle for at least 5
minutes. Perform several antilock braking stops.
8. Caution: Ensure braking capability is available before road testing.
9. Again, with the DRBIIIt read DTC’s. If any DTC’s are present, return to Symptom list.
10. If there are no Diagnostic Trouble Codes (DTC’s) present, and the customer’s complaint can
no longer be duplicated, the repair is complete.
All
535
VERIFICATION TESTS
Verification Tests —
Continued
AIRBAG VERIFICATION TEST VER 1
APPLICABILITY
1. Remove any special tools or jumper wires and reconnect all previously disconnected
components (except the Battery).
2. Turn the Ignition key On and reconnect the Battery.
3. Connect the DRB to the Data Link Connector (use the most current software available).
4. With the DRBIIIt, record and errase all DTCs from all modules.
5. Turn the Ignition Off,and wait 15 seconds before turning the Ignition On.
6. Wait one minute, and read active codes in all related modules and if there are none present
read the stored codes in all related modules.
7. If the DRB shows any active or stored codes, return to the Symptom list and follow path
specified for that trouble code. If no active or stored codes are present, the repair is complete.
Are any codes present?
All
YES
Select the appropriate system from the Symptom List and continue
diagnostics.
NO
Repair is complete.
8. Note: If the PCM has been replaced, the unique Secret Key data must be
transferred from the SKIM to the PCM in accordance with the Service Information.
This procedure requires the SKIM to be placed in secured access mode using the
4-digit.
536
VERIFICATION TESTS
Verification Tests —
Continued
BODY VERIFICATION TEST - VER 1
APPLICABILITY
1. Disconnect all jumper wires and reconnect all previously disconnected components and
connectors.
2. If the Sentry Key Immobilizer Module (SKIM) or the Powertrain Control Module (PCM) were
replaced, proceed to number 6. If the SKIM or PCM were not replaced, continue to the next
number.
3. If the Body Control Module was replaced, turn the ignition on for 15 seconds (to learn VIN)
or engine may not start (if VTSS equipped). If the vehicle is equipped with VTSS, use the DRB
and enable VTSS.
4. Program all other options as needed.
5. If any repairs were made to the HVAC System, disconnect the battery or using the DRBIII,
recalibrate the HVAC doors. Proceed to number 13.
6. Obtain the Vehicle’s unique PIN number assigned to it’s original SKIM module from either
the vehicle’s invoice or from Chrysler’s Customer Center (1-800-992-1997).
7. With the DRBIII, select THEFT ALARM, SKIM, MISCELLANEOUS and select 9Skim
Module Replaced9 function. Enter the 4 digit PIN number to put SKIM in 9Access Mode9.
8. The DRBIII will prompt you through the following steps. (1) Program the country code into
the SKIM’s memory. (2) Program the vehicle’s VIN number into the SKIM’s memory. (3)
Transfer the vehicle’s Secret Key data from the PCM.
9. Once secured access mode is active, the SKIM will remain in that mode for 60 seconds.
10. Using the DRBIII, program all customer keys into the SKIM’s memory. This requires that
the SKIM be in secured access mode, using the 4 digit code.
11. Note: If the PCM is replaced, the unique Secret Key data must be transfered from the SKIM
to the PCM. This procedure requires the SKIM to be placed in secured access mode using the
4-digit code.
12. Note: If 3 attempts are made to enter secured access mode using an incorrect PIN, secured
access mode will be locked out for 1 hour which causes the DRBIII to display 9Bus +− Signals
Open9. To exit this mode, turn ignition to the 9Run9 pos. for 1 hour.
13. Ensure all accessories are turned off and the battery is fully charged.
14. Ensure that the Ignition is on, and with the DRBIII, record and erase all Diagnostic Trouble
Codes from ALL modules. Start the engine and allow it to run for 2 minutes and fully operate
the system that was malfunctioning.
15. Turn the ignition off and wait 5 seconds. Turn the ignition on and using the DRBIII, read
DTC’s from ALL modules.
16. If ANY codes are present select the appropriate symptom from the Symptom List and
continue diagnostics. If NO codes are present and the customers complaint cannot be
duplicated, the repair is complete.
All
MEMORY/HEATED SYSTEM VERIFICATION TEST - VER 1
APPLICABILITY
1. Reconnect all previously disconnected components and connectors.
2. If any Memory/Heated Seat, or Driver’s Door Module Trouble Codes are present, erase at this
time.
3. If the Memory Seat Module was replaced, use the DRBIII and 9Reset Guard Bands9.
4. With the Memory Switch on the Driver’s Door, program the Driver’s Seat #1 Button to a
desired position and Driver #2 Button to a different position.
5. Remove the Ignition Key and close all Doors to allow the Body Control Module to time out
(30 seconds).
6. Verify that both Memory positions can be recalled from the RKE transmitter and the
Memory Switch on the Driver’s Door.
7. Turn the ignition off and wait 5 seconds. Turn the ignition on and using the DRBIII, read
DTC’s from ALL modules.
8. If ANY codes are present select the appropriate symptom from the Symptom List and
continue diagnostics. If NO codes codes are present and the customers complaint cannot be
duplicated, the repair is complete.
All
537
VERIFICATION TESTS
Verification Tests —
Continued
POWERTRAIN VERIFICATION TEST VER - 1
APPLICABILITY
1. Inspect the vehicle to ensure that all engine components are properly installed and
connected. Reassemble and reconnect components as necessary.
2. Inspect the engine oil for contamination. If it is contaminated, change the oil and filter.
3. Perform the steps 1 through 6 if the PCM has been replaced. Then proceed with the
verification. If the PCM has not been replaced skip those steps and continue verification.
4. If PCM has been changed and correct VIN and mileage have not been programmed a DTC
will be set in ABS and Air Bag modules. In addition, if vehicle is equipped with a Sentry Key
Immobilizer Module (SKIM), Secret Key data must be updated to enable start.
5. For ABS and Air Bag systems: Enter correct VIN and Mileage in PCM. Erase codes in ABS
and Air Bag modules.
6. For SKIM theft alarm: Connect DRB to data link conn. Go to Theft Alarm, SKIM, Misc. and
place SKIM in secured access mode, by using the appropriate PIN code for this vehicle. Select
Update the Secret Key data. Data will be transferred from SKIM to PCM.
7. Attempt to start the engine.
8. If the engine is unable to start, look for any Technical Service Bulletins that may relate to
this condition. Return to Symptom List if necessary.
9. If the engine starts and stays running, the repair is now complete.
All
SKIS VERIFICATION
APPLICABILITY
1. Reconnect all previously disconnected components and connectors.
2. Obtain the vehicle’s unique Personal Identification Number (PIN) assigned to it’s original
SKIM. This number can be obtained from the vehicle’s invoice or Chrysler’s Customer Center
(1-800-992-1997).
3. NOTE: When entering PIN, care should be taken because 3 attempts will only be allowed.
The SKIM module will then 9lock out9 the DRB III for 1 hour, which will cause the DRB III to
display 9Bus +− Signals Open’ to SKIM.
4. To exit 9lock out9 mode, the ignition key needs to remain in the 9On9 position continually for
one hour. Turn off all accessories and connect a battery charger, if necessary.
5. With the DRB III, select 9Theft Alarm,9 9Skim,9 9Miscellaneous,9 then select desired
procedure and follow the steps displayed.
6. If the SKIM was replaced, ensure all of the vehicles keys are programmed into the new
SKIM.
Replace the SKIM if the problem is corrected otherwise return to the Symptom List.
All
7. Note: Prior to returning vehicle to the customer, perform a module scan to be sure
all DTC’s are erased. Erase ANY DTC’s that are found.
SPEED PRO STEERING VERIFICATION TEST - VER 1
APPLICABILITY
1. Connect all previously disconnected components and connectors.
2. With the DRBIIIt, erase DTC’s.
3. Cycle the ignition key off then on.
4. With the DRBIIIt, read DTC’s. If any codes are present return to the SYMPTOM MENU and
perform the appropriate test. If no codes are present, road test the vehicle for at least 15
minutes performing several steering manuvers.
5. Again with the DRBIIIt, read DTC’s. If any codes are present, return to the SYMPTOM
MENU and perform the appropriate test.
6. If ANY codes are present select the appropriate symptom from the Symptom List and
continue diagnostics. If NO codes codes are present and the customers complaint cannot be
duplicated, the repair is complete.
STEERING SPEED PROPORTIONAL
538
VERIFICATION TESTS
Verification Tests —
Continued
VTSS VERIFICATION TEST - VER 1
APPLICABILITY
1. Ensure all doors, hood and decklid are closed.
2. Open the driver’s door.
3. Remove the ignition key (but keep in hand).
4. Lock the doors with RKE transmitter.
5. Close the driver’s door.
6. - If the VTSS indicator lamp flashes, the system is operational.
7. - If the indicator fails to flash, there is a problem with the system. Select the Identifying
VTSS Problems symptom from the symptom list to troubleshoot.
All
539
NOTES
540
8.0
C
O
M
P
O
N
E
N
T
COMPONENT LOCATIONS
L
O
C
A
T
I
O
N
S
8.1
AIRBAG SYSTEM
541
C
O
M
P
O
N
E
N
T
8.1
AIRBAG SYSTEM (Continued)
L
O
C
A
T
I
O
N
S
542
8.2
C
O
M
P
O
N
E
N
T
AUDIO SYSTEM
L
O
C
A
T
I
O
N
S
8.2.1
COMPONENTS
543
C
O
M
P
O
N
E
N
T
8.2
AUDIO SYSTEM (Continued)
8.2.2
ANTENNA MODULE
8.2.3
AMPLIFIER (INFINITY 2)
L
O
C
A
T
I
O
N
S
544
8.2.4
C
O
M
P
O
N
E
N
T
AMPLIFIER (INFINITY 1)
L
O
C
A
T
I
O
N
S
8.3
COMMUNICATION
545
C
O
M
P
O
N
E
N
T
8.3
COMMUNICATION (Continued)
L
O
C
A
T
I
O
N
S
8.3.1
8.4
8.4.1
SENTRY KEY IMMOBILIZER MODULE (SKIM)
ELECTRICALLY HEATED SYSTEMS
SWITCHES
546
8.4.2
8.5
C
O
M
P
O
N
E
N
T
HEATED SEAT MODULE
L
O
C
A
T
I
O
N
S
HEATING AND A/C
8.5.1
ACTUATORS
8.5.2
AUTOMATIC TEMPERATURE CONTROL HEAD
547
C
O
M
P
O
N
E
N
T
8.5 HEATING AND A/C (Continued)
8.5.3 MANUAL TEMPERATURE CONTROL HEAD
L
O
C
A
T
I
O
N
S
8.6
INSTRUMENT CLUSTER
8.6.1
CHRYSLER (TYPICAL)
8.6.2
DECKLID AJAR SWITCH
8.6.3
548
FUEL PUMP MODULE
(HARNESS CONNECTOR)-C308
8.6.4
C
O
M
P
O
N
E
N
T
BRAKE FLUID LEVEL SWITCH
8.6.5
PARKING BRAKE SWITCH
8.6.6
WASHER FLUID LEVEL
L
O
C
A
T
I
O
N
S
549
C
O
M
P
O
N
E
N
T
8.7
INTERIOR LIGHTING
8.7.1
HEADLINER CONNECTOR
8.7.2
DOOR AJAR SWITCH
L
O
C
A
T
I
O
N
S
8.8
8.8.1
MEMORY SYSTEM
MEMORY SWITCH
550
8.8.2
8.8.3
8.9
8.9.1
C
O
M
P
O
N
E
N
T
MEMORY MODULE
L
O
C
A
T
I
O
N
S
MEMORY SEAT MOTORS
OVERHEAD TRAVEL INFORMATION SYSTEM
OTIS MODULE
551
C
O
M
P
O
N
E
N
T
8.9 OVERHEAD TRAVEL INFORMATION SYSTEM (Continued)
8.9.2 HEADLINER CONNECTOR
L
O
C
A
T
I
O
N
S
8.10
POWER DOOR LOCKS
8.10.1
DOOR LOCK MOTOR
8.10.2
RKE MODULE
552
8.11
8.11.1
C
O
M
P
O
N
E
N
T
SPEED PROPORTIONAL STEERING
SOLENOID
L
O
C
A
T
I
O
N
S
8.11.2
8.12
CONNECTOR
VEHICLE THEFT SECURITY SYSTEM (VTSS)
553
C
O
M
P
O
N
E
N
T
8.13
WIPER SYSTEM
8.13.1
WIPER MOTOR
8.13.2
WASHER RESERVOIR
8.13.3
HEADLAMP WASHER
L
O
C
A
T
I
O
N
S
554
CONNECTOR PINOUTS
9.0
CONNECTOR PINOUTS
A/C COMPRESSOR CLUTCH - BLACK 2 WAY
CAV
1
2
CIRCUIT
C2 14DB/BK
Z1 14BK
CAV
1
2
3
4
CIRCUIT
K4 20BK/LB
K6 20VT/WT
C18 20DB
-
FUNCTION
A/C COMPRESSOR CLUTCH RELAY OUTPUT
GROUND
A/C PRESSURE TRANSDUCER - GRAY 4 WAY
FUNCTION
SENSOR GROUND
5V SUPPLY
A/C PRESSURE SIGNAL
-
AMBIENT TEMPERATURE SENSOR - 2 WAY
CAV
1
2
CIRCUIT
G31 20VT/LG
C57 20DB/GY
555
FUNCTION
AMBIENT TEMPERATURE SENSOR SIGNAL
SENSOR GROUND
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CONNECTOR PINOUTS
AUTOMATIC TEMPERATURE CONTROL HEAD - BLACK 12 WAY
CAV
1
2
3
4
5
6
7
8
9
10
11
12
CIRCUIT
Z2 20BK/LG
D25 20VT/YL
Z1 20BK
E2 20OR
C10 22RD/TN
C57 20DB/GY
F20 20WT
C9 22YL/DG
M1 20PK
CAV
1
2
3
4
5
CIRCUIT
22DB/RD
22DB/GY
22RD/WT
22PK/DB
22BR/WT
FUNCTION
GROUND
PCI BUS
GROUND
PANEL LAMPS FEED
IN-CAR TEMPERATURE SENSOR SIGNAL (ATC)
SENSOR GROUND
FUSED IGNITION SWITCH OUTPUT (RUN)
ASPIRATION MOTOR DRIVER
FUSED B (+)
BLEND DOOR ACTUATOR - BLACK 5 WAY
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
C33
C57
C36
C26
C34
FUNCTION
BLEND AIR DOOR DRIVER
SENSOR GROUND
BLEND DOOR FEEDBACK SIGNAL
5V SUPPLY
COMMON DOOR DRIVER
BLOWER MOTOR POWER MODULE - BLACK 4 WAY
CAV
1
2
3
4
CIRCUIT
Z1 12BK
C56 22RD/LG
C1 12DG
FUNCTION
GROUND
BLOWER MOTOR CONTROL
FUSED IGNITION SWITCH OUTPUT
BLOWER MOTOR RESISTOR BLOCK - BLACK 6 WAY
CAV
1
2
3
4
5
6
C7
C6
C1
C4
C5
CIRCUIT
12BK/TN
16LB
12DG
18TN
16LG
556
FUNCTION
HIGH BLOWER MOTOR DRIVER
M2 BLOWER MOTOR DRIVER
FUSED IGNITION SWITCH OUTPUT
LOW BLOWER MOTOR DRIVER
M1 BLOWER MOTOR DRIVER
CONNECTOR PINOUTS
BODY CONTROL MODULE C1 - GRAY 14 WAY
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CIRCUIT
P1 20BK/WT
C32 22GY/DB
C33 22DB/RD
D25 20VT/YL
D25 20VT/YL
D25 18VT/YL
C57 20DB/GY
C35 22DG/YL
C34 22BR/WT
C59 20VT/LG
D25 20VT/YL
D25 20VT/YL
D25 20VT/YL
FUNCTION
DECKLID RELEASE SWITCH OUTPUT
RECIRCULATION DOOR DRIVER
BLEND AIR DOOR DRIVER
PCI BUS (ATC)
PCI BUS (RADIO)
PCI BUS (ORC)
SENSOR GROUND
MODE DOOR DRIVER
COMMON DOOR DRIVER
FAN OFF SWITCH SIGNAL
PCI BUS (SKIM)
PCI BUS (MIC)
PCI BUS (DLC)
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
(MTC)
14
15
16
17
18
19
20
21
22
(ATC)
22
(MTC)
23
24
CIRCUIT
C36 22RD/WT
G52 20YL
C9 22YL/DG
C56 22RD/LG
V10 20BR
V52 20DG/RD
C37 22YL/WT
C38 20DB
C82 20YL/OR
E17 20YL/BK
FUNCTION
BLEND DOOR FEEDBACK SIGNAL
HEADLAMP SWITCH MUX
ASPIRATOR MOTOR DRIVER
BLOWER MOTOR CONTROL
FRONT WASHER PUMP MOTOR CONTROL
FRONT WIPER MUX SWITCH SIGNAL
MODE DOOR FEEDBACK SIGNAL
SUN SENSOR SIGNAL
TEMPERATURE SELECT SIGNAL
DAY BRIGHTNESS SENSE
C48 20VT/PK
C26 22PK/DB
L80 20WT
C12 22LG/BK
E19 20RD
C10 22RD/TN
A/C LED INDICATOR SIGNAL
5V SUPPLY
HEADLAMP SWITCH RETURN
EVAPORATOR TEMPERATURE SENSOR SIGNAL
PANEL LAMPS DIMMER SIGNAL
IN-CAR TEMPERATURE SENSOR SIGNAL
C58 22RD/TN
A/C MODE SWITCH MUX
G69 22BK/OR
G26 22LB
VTSS INDICATOR DRIVER
KEY-IN IGNITION SWITCH SENSE
CAV
1
2
3
4
5
6
7
8
9
10
11
12
CIRCUIT
D25 20VT/YL
D25 20 VT/YL
V55 20TN/RD
V14 20RD/VT
G31 20VT/LG
D25 20VT/YL
V58 14BR/YL
C57 20DB/GY
V16 20VT
BODY CONTROL MODULE C2 - BLACK 24 WAY
-
BODY CONTROL MODULE C3 - WHITE 12 WAY
557
FUNCTION
PCI BUS (MHS/MM)
PCI BUS (CAB)
WIPER PARK SWITCH SENSE
WIPER ON/OFF RELAY CONTROL
AMBIENT TEMPERATURE SENSOR SIGNAL
PCI BUS (TCM)
HEADLAMP WASHER RELAY CONTROL
SENSOR GROUND
WIPER HIGH/LOW RELAY CONTROL
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CONNECTOR PINOUTS
BODY CONTROL MODULE C4 - BLUE 16 WAY
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CIRCUIT
G74 20TN/RD
G74 20TN/RD
G72 20DG/OR
G75 20TN
P97 20WT/DG
G4 20DB
G71 18VT/WT
D25 20VT/YL
G74 20TN/RD
P96 20WT/LG
G73 20LG/OR
C80 20DB/WT
G10 20LG/RD
-
CAV
1
2
3
4
5
6
CIRCUIT
K29 29WT/PK
Z2 18BK/LG
V32 20YL/RD
V30 20DB/RD
L50 16WT/TN
F32 16PK/DB
CAV
B
A
CIRCUIT
G9 20GY/BK
Z1 20BK
FUNCTION
DOOR AJAR SWITCH SENSE (LR)
DOOR AJAR SWITCH SENSE (PASS)
PASSENGER DOOR KEY CYLINDER SWITCH SENSE
DRIVER DOOR AJAR SWITCH SENSE
DRIVER DOOR MUX SWITCH
FUEL LEVEL SENSOR SIGNAL
DECKLID SECURITY SWITCH SENSE
PCI BUS (PCM)
DOOR AJAR SWITCH SENSE (RR)
PASSENGER DOOR MUX SWITCH
DRIVER DOOR KEY CYLINDER SWITCH SENSE
REAR WINDOW DEFOGGER RELAY CONTROL
SEAT BELT SWITCH SENSE
-
BRAKE LAMP SWITCH - GRAY 6 WAY
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
FUNCTION
BRAKE SWITCH SENSE
GROUND
SPEED CONTROL POWER SUPPLY
SPEED CONTROL BRAKE SWITCH OUTPUT
BRAKE LAMP SWITCH OUTPUT
FUSED B(+)
BRAKE PRESSURE SWITCH - BLACK 2 WAY
FUNCTION
RED BRAKE WARNING INDICATOR DRIVER
GROUND
C202 (MTC) - WHITE (I/P HARNESS SIDE)
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
558
CIRCUIT
C34 22BR/WT
C35 22DG/YL
C33 22DB/RD
C32 22GY/DB
C57 20DB/GY
C26 22PK/DB
C7 12BK/TN
C1 12DG
C12 22LG/BK
C36 22RD/WT
C37 22YL/WT
C4 18TN
C5 16LG
C6 16LB
-
CONNECTOR PINOUTS
C202 (MTC) - NATURAL (HVAC HARNESS SIDE)
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CIRCUIT
C34 20BR/WT
C35 22DG/YL
C33 22DB/RD
C32 20GY/DB
C57 20DB/GY
C26 22PK/DB
C7 12BK/TN
C1 12DG
C12 20LG/BK
C36 22YL/WT
C37 22YL/WT
C4 18TN
C5 16LG
C6 16LB
-
C203 (ATC) - WHITE (I/P HARNESS SIDE)
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CIRCUIT
22BR/WT
22DG/YL
22DB/RD
22GY/DB
20DB/GY
22PK/DB
C1 12DG
C12 22LG/BK
C36 22RD/WT
C37 22YL/WT
Z1 12BK
C56 22RD/LG
C34
C35
C33
C32
C57
C26
C203 (ATC) - NATURAL (HVAC HARNESS SIDE)
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
559
CIRCUIT
20BR/WT
22DG/YL
22DB/RD
20GY/DB
20DB/GY
22PK/DB
C1 12DG
C12 20LG/BK
C36 22RD/WT
C37 22YL/WT
Z1 12BK
C56 22RD/LG
C34
C35
C33
C32
C57
C26
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CONNECTOR PINOUTS
C308 - NATURAL (BODY SIDE)
CAV
1
2
3
4
5
6
7
8
9
10
CIRCUIT
G4 14DB
K106 18 WT/DG
K107 20OR/RD
A141 12DG/WT
Z1 12BK
F18 20LG/BK
-
C308 - NATURAL (FUEL TANK JUMPER SIDE)
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CAV
1
2
3
4
5
6
7
8
9
10
CIRCUIT
G4 20DB
K106 18WT/DG
K107 20OR/RD
A141 12DG/WT
Z1 12BK
F18 20LG/BK
-
CENTER INSTRUMENT PANEL SPEAKER - BLACK 2 WAY
CAV
1
2
CIRCUIT
X89 18PK/BK
X88 18PK/RD
CAV
1
2
CIRCUIT
R43 18BK/LB
R45 18DG/LB
FUNCTION
AMPLIFIED CENTER INSTRUMENT PANEL SPEAKER (-)
AMPLIFIED CENTER INSTRUMENT PANEL SPEAKER (+)
CLOCKSPRING NO. 2 - YELLOW 2 WAY
560
FUNCTION
DRIVER SQUIB NO. 1 LINE 2
DRIVER SQUIB NO. 1 LINE 1
CONNECTOR PINOUTS
CONTROLLER ANTI-LOCK BRAKE - 25 WAY
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
CIRCUIT
B1 18YL/DB
B3 18LG/DB
B7 18WT
B9 18RD
Z1 12BK
A20 12RD/DB
B4 18LG
B8 18RD/DB
L50 18WT/TN
B2 18YL
B6 18WT/DB
D25 18YL/VT
F20 18WT/VT
Z1 12BK
A10 12RD/DG
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CIRCUIT
D25 20VT/YL
Z1 20BK
Z2 20BK/LG
D20 20LG
D21 20PK/TN
F11 20RD/WT
D6 20PK/LB
M1 20PK
FUNCTION
RIGHT REAR WHEEL SPEED SENSOR (-)
LEFT REAR WHEEL SPEED SENSOR (-)
RIGHT FRONT WHEEL SPEED SENSOR (+)
LEFT FRONT WHEEL SPEED SENSOR (+)
GROUND
FUSED B(+)
LEFT REAR WHEEL SPEED SENSOR (+)
LEFT FRONT WHEEL SPEED SENSOR (-)
BRAKE LAMP SWITCH OUTPUT
RIGHT REAR WHEEL SPEED SENSOR (+)
RIGHT FRONT WHEEL SPEED SENSOR (-)
PCI BUS
FUSED IGNITION SWITCH OUTPUT (RUN)
GROUND
FUSED B (+)
DATA LINK CONNECTOR - BLACK 16 WAY
FUNCTION
PCI BUS
GROUND
GROUND
SCI RECEIVE (PCM)
SCI TRANSMIT
FUSED IGNITION SWITCH OUTPUT (ST-RUN-OFF)
SCI RECEIVE (TCM)
FUSED B (+)
DECKLID RELEASE SOLENOID/AJAR SWITCH - BLACK 3 WAY
CAV
1
2
3
CIRCUIT
Z1 20BK
G78 20TN/BK
P2 20BK/WT
561
FUNCTION
GROUND
DECKLID AJAR SWITCH SENSE
DECKLID RELEASE CONTROL
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CONNECTOR PINOUTS
DECKLID RELEASE SWITCH - BLACK 2 WAY
CAV
1
2
CIRCUIT
P1 20BK/WT
M1 20PK
CAV
1
2
CIRCUIT
FUNCTION
DECKLID RELEASE SWITCH OUTPUT
FUSED B(+)
DRIVER AIRBAG SQUIB
C
O
N
N
E
C
T
O
R
BK
BK
FUNCTION
DRIVER AIRBAG LINE 2
DRIVER AIRBAG LINE 1
P
I
N
O
U
T
S
DRIVER DOOR COURTESY LAMP - BLACK 2 WAY
CAV
1
2
CIRCUIT
M2 20YL
M1 20PK
562
FUNCTION
COURTESY LAMPS DRIVER
FUSED B(+)
CONNECTOR PINOUTS
DRIVER DOOR CYLINDER LOCK SWITCH - GRAY 2 WAY
CAV
1
2
CIRCUIT
G73 20LG/OR
M1 20PK
FUNCTION
DRIVER DOOR KEY CYLINDER SWITCH SENSE
FUSED B(+)
DRIVER DOOR LOCK MOTOR/AJAR SWITCH - BLACK 4 WAY
CAV
1
2
3
4
CIRCUIT
G75 20TN
Z1 20BK
P55 16DB
P33 16OR
CAV
A
B
CIRCUIT
P88 16BR/BK
Z1 18BK (EXCEPT MEMORY SEATS)
Z1 20BK (MEMORY
SEATS)
FUNCTION
DRIVER DOOR AJAR SWITCH SENSE
GROUND
DRIVER DOOR UNLOCK RELAY OUTPUT
DOOR LOCK RELAY OUTPUT
DRIVER HEATED SEAT BACK - GREEN 2 WAY
B
FUNCTION
HEATED SEAT DRIVER
GROUND
GROUND
DRIVER HEATED SEAT BACK (SEAT BACK SIDE)
CAV
A
B
CIRCUIT
BR
BR
FUNCTION
HEATED SEAT DRIVER
GROUND
563
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CONNECTOR PINOUTS
DRIVER HEATED SEAT CUSHION - 4 WAY
CAV
A
C
D
B
CIRCUIT
P131 16RD/DG
P141 20TN/LB
P143 20BK/DG
P88 16BR/BK
CAV
A
B
C
D
CIRCUIT
FUNCTION
DRIVER SEAT HEATER B(+) DRIVER
DRIVER SEAT TEMPERATURE SENSOR INPUT
DRIVER SEAT TEMPERATURE 5V SUPPLY
HEATED SEAT DRIVER
DRIVER HEATED SEAT CUSHION (CUSHION SIDE)
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
BL
GN
BK/RD
BK/RD
FUNCTION
SEAT HEATER B(+) DRIVER
HEATED SEAT DRIVER
SEAT TEMPERATURE SENSOR INPUT
SEAT TEMPERATURE 5V SUPPLY
DRIVER HEATED SEAT SWITCH - RED 6 WAY
CAV
1
2
3
3
4
5
6
CIRCUIT
P137 20VT/DG
Z1 18BK (MEMORY SEATS)
Z1 20BK (EXCEPT MEMORY SEATS)
G5 20DB/WT
P139 20VT/WT
P133 20TN/DG
FUNCTION
DRIVER SEAT LOW HEAT LED DRIVER
GROUND
GROUND
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
DRIVER SEAT HIGH HEAT LED DRIVER
DRIVER SEAT HEATER SWITCH MUX
DRIVER POWER DOOR LOCK SWITCH - NATURAL 4 WAY
CAV
1
2
3
4
CIRCUIT
M1 20PK
G5 20DB/WT
Z1 20BK
P97 20WT/DG
564
FUNCTION
FUSED B(+)
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
GROUND
DRIVER FRONT DOOR SWITCH MUX
CONNECTOR PINOUTS
DRIVER POWER MIRROR (EXCEPT MEMORY) - 3 WAY
CAV
1
2
3
CIRCUIT
P71 20YL
P73 20YL/PK
P75 20BK/WT
CAV
1
2
3
4
5
6
7
8
9
10
CIRCUIT
FUNCTION
DRIVER MIRROR UP DRIVER
DRIVER MIRROR COMMON DRIVER
DRIVER MIRROR LEFT DRIVER
DRIVER POWER MIRROR (MEMORY) - NATURAL 10 WAY
Z1 20BK
P73 20YL/PK (300M/LHS)
C16 20LB/YL
P71 20YL (300M/LHS)
P75 20BK/WT (300M/LHS)
P161 20GY/LB
P64 20YL/OR
P65 20DB/YL
P69 20WT/RD
FUNCTION
GROUND
DRIVER POWER MIRROR COMMON DRIVER (RIGHT/DOWN)
FUSED REAR WINDOW DEFOGGER RELAY OUTPUT
DRIVER MIRROR UP DRIVER
DRIVER MIRROR LEFT DRIVER
DRIVER MIRROR SENSOR 5V SUPPLY
DRIVER MIRROR VERTICAL POSITION SIGNAL
DRIVER MIRROR HORIZONTAL POSITION SIGNAL
DRIVER MIRROR SENSOR GROUND
DRIVER POWER SEAT FRONT RISER MOTOR - RED 2 WAY
CAV
1
1
2
2
CIRCUIT
P119 16YL/LG (MEMORY SEATS)
P19 18YL/LG (EXCEPT MEMORY SEATS)
P121 16RD/LG (MEMORY SEATS)
P21 18RD/LG (EXCEPT MEMORY SEATS)
FUNCTION
SEAT FRONT UP DRIVER
DRIVER SEAT FRONT UP
SEAT FRONT DOWN DRIVER
DRIVER SEAT FRONT DOWN
DRIVER POWER SEAT FRONT RISER MOTOR SENSOR (MEMORY) - 3 WAY
CAV
B
A
C
CIRCUIT
P26 20BR
P28 20BR/RD
P29 20 BR/WT
565
FUNCTION
FRONT RISER POSITION SENSOR SIGNAL
SEAT POSITION SENSOR GROUND
SEAT SENSOR 5V SUPPLY
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CONNECTOR PINOUTS
DRIVER POWER SEAT HORIZONTAL MOTOR - BLACK 2 WAY
CAV
1
1
2
2
CIRCUIT
P115 16YL/DB (MEMORY SEATS)
P15 18YL/LB (EXCPET MEMORY SEATS)
P117 16RD/LB (MEMORY SEATS)
P17 18RD/LB (EXCEPT MEMORY SEATS)
DRIVER
DRIVER
DRIVER
DRIVER
SEAT
SEAT
SEAT
SEAT
FUNCTION
HORIZONTAL FORWARD DRIVER
HORIZONTAL REARWARD DRIVER
HORIZONTAL REARWARD DRIVER
HORIZONTAL FORWARD DRIVER
DRIVER POWER SEAT HORIZONTAL MOTOR SENSOR (MEMORY) - 3 WAY
CAV
B
A
C
CIRCUIT
P25 20VT/RD
P28 20BR/RD
P29 20BR/WT
FUNCTION
SEAT HORIZONTAL POSITION SIGNAL
SEAT POSITION SENSOR GROUND
SEAT HEATER 5V SUPPLY
C
O
N
N
E
C
T
O
R
DRIVER POWER SEAT REAR RISER MOTOR - RED 2 WAY
P
I
N
O
U
T
S
CAV
1
1
2
2
CIRCUIT
P11 18YL/WT (EXCEPT MEMORY SEATS)
P111 16YL/WT (MEMORY SEATS)
P113 16RD/WT (MEMORY SEATS)
P13 18RD/WT (EXCEPT MEMORY SEATS)
SEAT
SEAT
SEAT
SEAT
REAR
REAR
REAR
REAR
FUNCTION
UP SWITCH SENSE
UP DRIVER
DOWN DRIVER
DOWN SWITCH SENSE
DRIVER POWER SEAT REAR RISER MOTOR SENSOR (MEMORY) - 3 WAY
CAV
B
A
C
CIRCUIT
P27 20LB/RD
P28 20BR/RD
P29 20BR/WT
566
FUNCTION
REAR RISER POSITION SIGNAL
SEAT POSITION SENSOR GROUND
SEAT SENSOR 5V SUPPLY
CONNECTOR PINOUTS
DRIVER POWER SEAT RECLINER MOTOR - GREEN 2 WAY
CAV
1
2
CIRCUIT
P41 16GY/WT
P43 16GY/LB
FUNCTION
DRIVER SEAT RECLINER DOWN DRIVER
DRIVER SEAT RECLINER UP DRIVER
DRIVER POWER SEAT RECLINER MOTOR SENSOR (MEMORY) - 3 WAY
CAV
C
A
B
CIRCUIT
P28 20BR/RD
P29 20BR/WT
P47 20LB
FUNCTION
SEAT POSITION SENSOR GROUND
SEAT SENSOR 5V SUPPLY
RECLINER POSITION SIGNAL
DRIVER POWER SEAT SWITCH - BLUE 10 WAY
CAV
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
CIRCUIT
F35 16RD (WITHOUT MEMORY SEATS)
P9 20RD (MEMORY SEATS)
P41 16GY/WT (WITHOUT MEMORY SEATS)
P48 20GY/WT (MEMORY SEATS)
P17 18RD/LB (WITHOUT MEMORY SEATS)
P43 16GY/LB (MEMORY SEATS)
P40 20GY/LB (MEMORY SEATS)
P43 16GY/LB (WITHOUT MEMORY SEATS)
Z1 16BK (WITHOUT MEMORY SEATS)
Z1 18BK (MEMORY SEATS)
P21 18RD/LG (MEMORY SEATS)
P21 18RD/LG (WITHOUT MEMORY SEATS)
P13 18RD/WT (MEMORY SEATS)
P13 18RD/WT (WITHOUT MEMORY SEATS)
P11 18YL/WT (MEMORY SEATS)
P11 18YL/WT (WITHOUT MEMORY SEATS)
P19 18YL/LG (MEMORY SEATS)
P19 18YL/LG (WITHOUT MEMORY SEATS)
P15 18YL/LB (MEMORY SEATS)
P15 18YL/LB (WITHOUT MEMORY SEATS)
567
FUNCTION
FUSED B(+)
SEAT SWITCH B(+) SUPPLY
DRIVER SEAT RECLINER SWITCH UP
RECLINER DOWN SWITCH SENSE
DRIVER SEAT HORIZONTAL REARWARD
SEAT HORIZONTAL REARWARD SWITCH SENSE
RECLINER UP SWITCH SENSE
DRIVER SEAT RECLINER SWITCH DOWN
GROUND
GROUND
SEAT FRONT DOWN SWITCH SENSE
DRIVER SEAT FRONT DOWN
SEAT REAR DOWN SWITCH SENSE
DRIVER SEAT REAR DOWN
SEAT REAR UP SWITCH SENSE
DRIVER SEAT REAR UP
SEAT FRONT UP SWITCH SENSE
DRIVER SEAT FRONT UP
SEAT HORIZONTAL FORWARD SWITCH SENSE
DRIVER SEAT HORIZONTAL FORWARD
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CONNECTOR PINOUTS
DRIVER POWER WINDOW MOTOR - RED 2 WAY
CAV
1
2
CIRCUIT
Q21 16WT
Q11 16LB
CAV
1
2
3
4
5
6
7
8
9
10
11
12
CIRCUIT
F21 14TN
Q17 14DB/WT
Q27 14RD/BK
Q18 14GY/BK
Q1 14YL
Q11 16LB
Q21 16WT
Q28 14DG/WT
Z1 14BK
Q26 14VT/WT
Q16 14BR/WT
FUNCTION
DRIVER WINDOW DRIVER (DOWN)
DRIVER WINDOW DOWN (UP)
DRIVER POWER WINDOW SWITCH - BLUE 12 WAY
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
FUNCTION
FUSED IGNITION SWITCH OUTPUT (RUN)
LEFT REAR WINDOW DRIVER (UP)
LEFT REAR WINDOW DRIVER (DOWN)
RIGHT REAR WINDOW DRIVER (UP)
POWER WINDOW SWITCH FEED
DRIVER WINDOW DRIVER (UP)
DRIVER WINDOW DRIVER (DOWN)
RIGHT REAR WINDOW RIVER (DOWN)
GROUND
MASTER WINDOW SWITCH PASSENGER (DOWN)
MASTER WINDOW SWITCH PASSENGER (UP)
ENGINE COOLANT TEMPERATURE SENSOR - BLACK 2 WAY
CAV
1
2
CIRCUIT
K2 20TN/BK
K4 20BK/LB
CAV
1
2
CIRCUIT
FUNCTION
ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
SENSOR GROUND
ENGINE OIL PRESSURE SWITCH - GREEN 2 WAY
G6 20GY
-
568
FUNCTION
OIL PRESSURE SWITCH SENSE
-
CONNECTOR PINOUTS
EVAPORATOR TEMPERATURE SENSOR - BLACK 2 WAY
CAV
1
2
CIRCUIT
C12 20LG/BK
C57 20DB/GY
CAV
1
2
3
4
CIRCUIT
FUNCTION
EVAPORATOR TEMPERATURE SENSOR SIGNAL
SENSOR GROUND
FUEL PUMP MODULE - GRAY 4 WAY
Z1 12BK
Z1 12BK
G4 12BK
A141 12DG/WT
FUNCTION
GROUND
GROUND
FUEL LEVEL SENSOR
FUEL PUMP RELAY OUTPUT
HEADLAMP SWITCH - BLUE 13 WAY
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
CIRCUIT
Z1 18BK/LB
L7 18BK/YL
F19 20RD
Z1 20BK
L95 18DG/YL
L80 20WT
L13 18BR/YL
E2 20OR
L96 18LG/RD
L39 20LB
G52 20YL
-
CAV
A
B
CIRCUIT
FUNCTION
GROUND
HEADLAMP SWITCH OUTPUT
PANEL LAMPS DIMMER SIGNAL
GROUND
REAR FOG LAMP RELAY CONTROL
HEADLAMP SWITCH RETURN
HEADLAMP ADJUST SIGNAL
PANEL LAMPS DRIVER
REAR FOG LAMP SWITCH GROUND
FOG LAMP RELAY OUTPUT
HEADLAMP SWITCH MUX
-
HEADLAMP WASHER PUMP MOTOR (BUILT-UP-EXPORT)
Z1 14BK
V53 14RD/OR
569
FUNCTION
GROUND
HEADLAMP WASHER RELAY OUTPUT
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CONNECTOR PINOUTS
HEATED MIRROR FUSE - BLACK 2 WAY
CAV
B
A
CIRCUIT
C15 10BK/WT
C16 20LB/YL
CAV
1
2
3
4
5
6
7
8
9
10
CIRCUIT
A81 14DG/RD
G26 22LB
Z2 20BK/LG
A21 12DB/WT
A1 12RD
A31 12BK/WT
A2 12PK/BK
A41 14YL
A22 12BK/OR
CAV
1
2
3
4
5
6
7
8
9
10
CIRCUIT
F33 18RL/RD
F11 20RD/WT
M1 20PK
E2 20OR
D25 20VT/YL
Z2 22BK/LG
L60 18TN
L324 20WT/LG
CAV
1
2
3
4
5
6
7
8
9
10
CIRCUIT
G5 18DB/WT
G9 22GY/BK
G29 22BK/TN
L61 18LG
Z1 22BK
B27 20RD/YL
G78 20TN/BK
G6 22GY
FUNCTION
REAR WINDOW DEFOGGER RELAY OUTPUT
FUSED REAR WINDOW DEFOGGER RELAY OUTPUT
IGNITION SWITCH - BLACK 10 WAY
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
FUNCTION
IGNITION SWITCH OUTPUT (ST-RUN-OFF)
KEY-IN IGNITION SWITCH SENSE
GROUND
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
FUSED B (+)
FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
FUSED B (+)
FUSED IGNITION OUTPUT (START)
FUSED IGNITION SWITCH OUTPUT (RUN)
INSTRUMENT CLUSTER C1 - GREEN 10 WAY
FUNCTION
FUSED B(+)
FUSED IGNITION SWITCH OUTPUT (ST-RUN-OFF)
FUSED B(+)
PANEL LAMPS DRIVER
PCI BUS
GROUND
RIGHT TURN SIGNAL
HIGH BEAM RELAY CONTROL
INSTRUMENT CLUSTER C2 - BLUE 10 WAY
570
FUNCTION
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
RED BRAKE WARNING INDICATOR DRIVER
WASHER FLUID SWITCH SENSE
LEFT TURN SIGNAL
GROUND
TRACTION CONTROL SWITCH SENSE
DECKLID CONTROL SWITCH SENSE
ENGINE OIL PRESSURE SWITCH SENSE
CONNECTOR PINOUTS
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
571
CONNECTOR PINOUTS
FUSES
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CAV
1
2
3
4
5
6 (IGNITION
POSITION)
6
(BATTERY
POSITION)
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
CIRCUIT
INTERNAL
INTERNAL
L33 20RD
X12 20RD
F13 20DB
F30 18RD
IGNITION SWITCH OUTPUT (ST-RUN-OFF)
INTERNAL
FUSED B(+)
FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
FUSED B(+)
FUNCTION
F30 18RD
FUSED B(+)
INTERNAL
F23 18DB/YL
L5 22BK/YL
L44 20VT/RD
L40 20BR/WT
INTERNAL
F12 20DB/WT
INTERNAL
INTERNAL
INTERNAL
INTERNAL
INTERNAL
INTERNAL
F32 16PK/DB
INTERNAL
F14 18LG/YL
C1 12DG
INTERNAL
FUSED IGNITION SWITCH OUTPUT (RUN)
FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
FUSED RIGHT LOW BEAM OUTPUT
FUSED LOW BEAM RELAY OUTPUT
INTERNAL
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
INTERNAL
INTERNAL
INTERNAL
INTERNAL
INTERNAL
INTERNAL
FUSED B(+)
INTERNAL
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
FUSED IGNITION SWITCH OUTPUT (RUN)
CAV
1
2
CIRCUIT
F21 14TN
INTERNAL
CAV
1
2
3
4
5
6
CIRCUIT
Z1 14BK
INTERNAL
INTERNAL
INTERNAL
G9 20GY/BK
INTERNAL
CAV
81
82
83
84
85
CIRCUIT
INTERNAL
INTERNAL
INTERNAL
INTERNAL
INTERNAL
CAV
76
77
78
79
80
CIRCUIT
INTERNAL
INTERNAL
INTERNAL
INTERNAL
INTERNAL
CIRCUIT BREAKERS
FUNCTION
INTERNAL
INTERNAL
DAYTIME RUNNING LAMP MODULE
FUNCTION
GROUND
FUSED B(+)
LOW BEAM RELAY OUTPUT
FUSED IGNITION SWITCH OUTPUT (RUN)
PARK BRAKE SENSE
FUSED HIGH BEAM RELAY OUTPUT
DOOR LOCK RELAY
FUNCTION
LOCK RELAY OUTPUT
FUSED B(+)
FUSED B(+)
GROUND
DOOR LOCK RELAY CONTROL
DOOR UNLOCK RELAY
FUNCTION
UNLOCK RELAY OUTPUT
FUSED B(+)
FUSED B(+)
GROUND
DOOR UNLOCK RELAY CONTROL
572
CONNECTOR PINOUTS
DRIVER DOOR UNLOCK RELAY
CAV
86
87
88
89
90
CIRCUIT
P55 16DB
INTERNAL
INTERNAL
INTERNAL
INTERNAL
CAV
64
65
66
67
CIRCUIT
INTERNAL
INTERNAL
INTERNAL
INTERNAL
CAV
56
57
58
59
CIRCUIT
INTERNAL
INTERNAL
INTERNAL
INTERNAL
FUNCTION
DRIVER DOOR UNLOCK RELAY OUTPUT
FUSED B(+)
FUSED B(+)
GROUND
DRIVER DOOR UNLOCK RELAY CONTROL
FOG LAMP RELAY
FUNCTION
FOG LAMP RELAY CONTROL
FUSED B(+)
FUSED B(+)
FOG LAMP RELAY OUTPUT
HIGH BEAM HEADLAMP RELAY
FUNCTION
GROUND
HIGH BEAM RELAY CONTROL
FUSED B(+)
HIGH BEAM HEADLAMP RELAY OUTPUT
HORN RELAY
CAV
72
73
74
75
CIRCUIT
INTERNAL
INTERNAL
INTERNAL
X2 18DG/RD
CAV
60
61
62
63
CIRCUIT
INTERNAL
INTERNAL
INTERNAL
INTERNAL
CAV
52
53
54
55
CIRCUIT
INTERNAL
INTERNAL
INTERNAL
INTERNAL
CAV
68
69
70
71
CIRCUIT
A37 16WT/DB
A37 16WT/DB
-
FUNCTION
HORN RELAY CONTROL
FUSED B(+)
FUSED B(+)
HORN RELAY OUTPUT
LOW BEAM HEADLAMP RELAY
FUNCTION
LOW BEAM HEADLAMP RELAY CONTROL
FUSED B(+)
FUSED B(+)
LOW BEAM HEADLAMP RELAY OUTPUT
PARK LAMP RELAY
FUNCTION
PARK LAMP RELAY CONTROL
FUSED B(+)
FUSED B(+)
PARK LAMP RELAY OUTPUT
SPARE RELAY
FUNCTION
FUSED B(+)
FUSED B(+)
-
573
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CONNECTOR PINOUTS
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
574
CONNECTOR PINOUTS
JUNCTION BLOCK BODY CONTROL MODULE - JB
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CIRCUIT
Z1
M2
S76
S77
G5
L7
M1
P2
D25
P109
L307
P38
L308
L26
X3
P36
Z2
FUNCTION
GROUND
COURTESY LAMP DRIVER
SPEED PROPORTIONAL STEERING SOLENOID (-)
SPEED PROPORTIONAL STEERING SOLENOID (+)
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
PARK LAMP RELAY OUTPUT
FUSED(+)
DECKLID RELEASE CONTROL
PCI BUS (OTIS)
DRIVER FRONT DOOR UNLOCK RELAY CONTROL
LOW BEAM RELAY CONTROL
DOOR LOCK RELAY CONTROL
PARK LAMP RELAY CONTROL
FOG LAMP RELAY CONTROL
HORN RELAY CONTROL
DOOR UNLOCK RELAY CONTROL
GROUND
JUNCTION BLOCK C1 - BLACK 6 WAY
CAV
1
2
3
4
5
6
CIRCUIT
F32 16PK/DB
A21 12DB/WT
A31 12BK/WT
F30 18RD
C1 12DG
FUNCTION
FUSED B(+)
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
FUSED B (+)
BLOWER MOTOR FEED
JUNCTION BLOCK C2 - GRAY 16 WAY
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CIRCUIT
L39 20LB
X3 16BK/RD
F13 20DB
Z20 20BK/OR
F23 18DB/YL
F14 18LG/YL
L5 22BK/YL
L40 20BR/WT
L60 18TN
L60 18TN
L61 18LG
L61 18LG
575
FUNCTION
FOG LAMP RELAY OUTPUT
HORN RELAY CONTROL
FUSED IGNITION SWITCH
GROUND
FUSED IGNITION SWITCH
FUSED IGNITION SWITCH
FUSED IGNITION SWITCH
FUSED FOG LAMP FEED
RIGHT TURN SIGNAL
RIGHT TURN SIGNAL
LEFT TURN SIGNAL
LEFT TURN SIGNAL
OUTPUT (RUN-ACC)
OUTPUT (RUN)
OUTPUT (ST-RUN)
OUTPUT (RUN)
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CONNECTOR PINOUTS
JUNCTION BLOCK C3 - BLUE 15 WAY
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CIRCUIT
A81 14DG/RD
X12 20RD
Z2 18BK/LG
G9 22GY/BK
F11 20RD/WT
F11 20RD/WT
FUNCTION
IGNITION SWITCH OUTPUT (ST-RUN-OFF)
FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
GROUND
RED BRAKE WARNING INDICATOR DRIVER
FUSED IGNITION SWITCH OUTPUT (ST-RUN-OFF)
FUSED IGNITION SWITCH OUTPUT (ST-RUN-OFF)
CAV
1
2
3
4
5
6
7
8
9
10
11
12
CIRCUIT
L7 18BK/YL
M1 20PK
F33 18PK/RD
F33 18PK/RD
L324 20WT/LG
F62 16RD
M1 18PK
F20 20WT
G5 18DB/WT
L324 20 WT/LG
CAV
1
2
CIRCUIT
A1 12RD
A22 12BK/OR
CAV
1
2
3
4
5
6
7
8
9
10
11
12
12
CIRCUIT
P33 16OR
P33 16OR
P33 16OR
P55 16DB
M2 20YL
F11 20RD/WT
L60 16TN
L61 16LG
L1 18VT/BK (LHS)
L1 20VT/BK (EXCEPT LHS)
JUNCTION BLOCK C4 - GREEN 12 WAY
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
FUNCTION
HEADLAMP SWITCH OUTPUT
FUSED B(+)
FUSED B(+)
FUSED B(+)
SWITCHED HIGH BEAM RELAY CONTROL
FUSED B(+)
FUSED B(+)
FUSED IGNITION SWITCH OUTPUT (RUN)
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
SWITCHED HIGH BEAM RELAY CONTROL
JUNCTION BLOCK C5 - WHITE 2 WAY
FUNCTION
FUSED B(+)
IGNITION SWITCH OUTPUT (RUN)
JUNCTION BLOCK C6 - 12 WAY
576
FUNCTION
DOOR LOCK RELAY DRIVER
DOOR LOCK RELAY DRIVER
DOOR LOCK RELAY DRIVER
DRIVER DOOR UNLOCK RELAY OUTPUT
COURTESY LAMPS DRIVER
FUSED IGNITION SWITCH OUTPUT (ST-RUN-OFF)
RIGHT TURN SIGNAL
LEFT TURN SIGNAL
BACK-UP LAMP FEED
BACK-UP LAMP FEED
CONNECTOR PINOUTS
JUNCTION BLOCK C7 - 12 WAY
CAV
1
2
3
4
5
6
7
8
9
10
11
12
CIRCUIT
G9 20GY/BK
P2 20BK/WT
F35 16RD
F35 16RD
M1 20PK
M1 20PK
G5 20DB/WT
L7 18BK/YL
F21 14TN
Z1 14BK
P34 16PK/BK
P34 16PK/BK
CAV
1
2
3
4
5
6
CIRCUIT
A3 14RD/TN
A37 16WT/DB
L44 20VT/RD
F12 20DB/WT
L33 20RD
L39 20LB
CAV
1
2
3
4
5
6
7
8
CIRCUIT
A13 12PK/WT
A34 12LB/RD
A7 14RD/BK
F20 20WT
F20 18WT/VT
F11 20RD/WT
X2 18 DG/RD
CAV
A
B
CIRCUIT
L39 20LB
Z1 20BK
FUNCTION
RED BRAKE WARNING INDICATOR DRIVER
DECKLID RELEASE CONTROL
FUSED B(+)
FUSED B(+)
FUSED B(+)
FUSED B(+)
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
PARK LAMP RELAY OUTPUT
FUSED IGNITION SWITCH OUTPUT (RUN)
GROUND
UNLOCK RELAY OUTPUT
UNLOCK RELAY OUTPUT
JUNCTION BLOCK C8 - GREEN 6 WAY
FUNCTION
FUSED B(+)
FUSED B(+)
FUSED RIGHT LOW BEAM OUTPUT
FUSED IGNITION SWITCH OUTPUT
FUSED B(+)
FOG LAMP RELAY OUTPUT
JUNCTION BLOCK C9 - ORANGE 8 WAY
FUNCTION
B(+)
B(+)
B(+)
IGNITION SWITCH OUTPUT (RUN)
IGNITION SWITCH OUTPUT (RUN)
FUSED IGNITION SWITCH OUTPUT (ST-RUN-OFF)
HORN RELAY OUTPUT
FUSED
FUSED
FUSED
FUSED
FUSED
LEFT FOG LAMP (300M/LHS) - BLACK 2 WAY
577
FUNCTION
FOG LAMP CONTROL
GROUND
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CONNECTOR PINOUTS
LEFT FOG LAMP (DODGE) - GRAY 2 WAY
CAV
1
2
CIRCUIT
L39 20LB
Z1 20BK
FUNCTION
FOG LAMP RELAY OUTPUT
GROUND
LEFT FRONT DOOR SAIL SPEAKER - BLACK 2 WAY
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CAV
1
1
2
2
X81
X85
X83
X87
CIRCUIT
18YL/BK (PREMIUM AUDIO I/II)
18LG/BK (MIDLINE AUDIO)
18YL/RD (PREMIUM AUDIO I/II)
18LG/VT (MIDLINE AUDIO)
CAV
1
1
2
2
CIRCUIT
X85LG/BK
X85LG/BK
X87LG/VT
X87LG/VT
CAV
A
B
CIRCUIT
L33 20RD
Z1 20BK
AMPLIFIED
AMPLIFIED
AMPLIFIED
AMPLIFIED
LEFT
LEFT
LEFT
LEFT
FUNCTION
DOOR SAIL SPEAKER (-)
DOOR SPEAKER (-)
DOOR SAIL SPEAKER (+)
DOOR SPEAKER (+)
LEFT FRONT DOOR SPEAKER - BLACK 2 WAY
AMPLIFIED
AMPLIFIED
AMPLIFIED
AMPLIFIED
LEFT
LEFT
LEFT
LEFT
DOOR
DOOR
DOOR
DOOR
FUNCTION
SPEAKER (-)
SPEAKER (-)
SPEAKER (+)
SPEAKER (+)
LEFT HIGH BEAM HEADLAMP - BLACK 2 WAY
578
FUNCTION
FUSED LEFT HIGH BEAM OUTPUT
GROUND
CONNECTOR PINOUTS
LEFT HORN - BLACK 2 WAY
CAV
1
2
CIRCUIT
X2 18DG/RD
Z1 18BK
CAV
A
B
CIRCUIT
L43 20VT
Z1 20BK
FUNCTION
HORN RELAY OUTPUT
GROUND
LEFT LOW BEAM HEADLAMP - GRAY 2 WAY
FUNCTION
FUSED LEFT LOW BEAM OUTPUT
GROUND
LEFT REAR DOOR COURTESY LAMP - BLACK 2 WAY
CAV
1
2
3
CIRCUIT
M1 20PK
M2 20YL (BASE)
M52 20LG (EXCEPT BASE)
FUNCTION
FUSED B(+)
COURTESY LAMPS DRIVER
COURTESY LAMPS DRIVER
P
I
N
O
U
T
S
LEFT REAR DOOR LOCK MOTOR/AJAR SWITCH - BLACK 4 WAY
CAV
1
2
3
4
CIRCUIT
G74 20TN/RD
Z1 20BK
P34 16PK/BK
P33 16OR
579
FUNCTION
DOOR AJAR SWITCH SENSE
GROUND
UNLOCK RELAY OUTPUT
LOCK RELAY OUTPUT
C
O
N
N
E
C
T
O
R
CONNECTOR PINOUTS
LEFT REAR DOOR SPEAKER - BLACK 2 WAY
CAV
1
2
CIRCUIT
X96 18TN/DG
X98 18TN/VT
CAV
1
2
2
CIRCUIT
FUNCTION
AMPLIFIED LOW LEFT REAR SPEAKER (-)
AMPLIFIED LOW LEFT REAR SPEAKER (+)
LEFT REAR READING LAMP - 2 WAY
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
M1 20PK
M2 20YL (BASE)
M52 20LG (PREMIUM)
FUNCTION
FUSED B(+)
COURTESY LAMPS DRIVER
LEFT REAR READING LAMP SWITCH CONTROL
LEFT REAR SHELF SPEAKER - BLACK 2 WAY
CAV
1
1
2
2
X51
X93
X57
X91
CIRCUIT
18BR/YL (BASE AUDIO)
18WT/RD (MIDLINE AND PREMIUM AUDIO)
18BR/LB (BASE AUDIO)
18WT/BK (MIDLINE AND PREMIUM AUDIO)
CAV
1
2
CIRCUIT
R31 18LG/OR
R33 18LG/WT
FUNCTION
LEFT REAR SPEAKER (+)
AMPLIFIED HIGH LEFT REAR SPEAKER (+)
LEFT REAR SPEAKER (-)
AMPLIFIED HIGH LEFT REAR SPEAKER (-)
LEFT SEAT AIRBAG (BUILT-UP-EXPORT)
580
FUNCTION
LEFT SEAT SQUIB LINE 1
LEFT SEAT SQUIB LINE 2
CONNECTOR PINOUTS
LEFT SIDE IMPACT AIRBAG CONTROL MODULE (BUILT-UP-EXPORT)
CAV
1
2
3
4
5
6
CIRCUIT
F14 18LG/YL
D25 18VT/YL
R31 18LG/OR
R33 18LG/WT
Z104 18BK/LG
Z104 18BK/LG
FUNCTION
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
PCI BUS
LEFT SEAT SQUIB LINE 1
LEFT SEAT SQUIB LINE 2
GROUND
GROUND
LEFT SIDE IMPACT AIRBAG CONTROL MODULE (MODULE SIDE)
CAV
1
2
3
4
5
6
CIRCUIT
F14 18LG/YL
D25 18VT/YL
R31 18LG/OR
R33 18LG/WT
Z104 18BK/LG
Z104 18BK/LG
FUNCTION
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
PCI BUS
LEFT SEAT SQUIB LINE 1
LEFT SEAT SQUIB LINE 2
GROUND
GROUND
MANUAL TEMPERATURE CONTROL HEAD C1 - WHITE 12 WAY
CAV
1
2
3
4
5
6
7
8
9
10
11
12
CIRCUIT
C48 20VT/PK
C80 20DB/WT
Z1 20BK
C57 20DB/GY
F20 20WT
E17 20YL/BK
C82 20YL/OR
C58 22RD/TN
E2 20OR
FUNCTION
A/C LED INDICATOR SIGNAL
REAR WINDOW DEFOGGER INDICATOR SENSE
GROUND
SENSOR GROUND
FUSED IGNITION SWITCH OUTPUT (RUN)
PARK LAMP RELAY OUTPUT
TEMPERATURE SELECT
A/C MODE SWITCH MUX
PANEL LAMPS DRIVER
MANUAL TEMPERATURE CONTROL HEAD C2 - BLACK 10 WAY
CAV
1
2
3
4
5
6
7
8
9
10
CIRCUIT
C59 20VT/LG
C4 18TN
C6 16LB
Z1 12BK
C5 16LG
C7 12BK/TN
581
FUNCTION
FAN OFF SWITCH SIGNAL
LOW BLOWER MOTOR DRIVER
M2 BLOWER MOTOR DRIVER
GROUND
M1 BLOWER MOTOR DRIVER
HIGH BLOWER MOTOR DRIVER
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CONNECTOR PINOUTS
MEMORY HEATED SEAT/MIRROR MODULE C1 - 26 WAY
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
CIRCUIT
P69 20WT/RD
P25 20VT/RD
P27 20LB/RD
P141 20TN/LB
P134 20TN/LG
P67 20YL/RD
P64 20YL/OR
P21 18RD/LG
P13 18RD/LG
P15 18YL/LB
P40 20GY/LB
P23 18PK/RD
P22 18PK/BK
P66 20WT/BK
P26 20BR
P47 20LB
P142 20TN/DB
P133 20TN/DB
P68 20DG/RD
P65 20DB/YL
P19 18YL/LG
P11 18YL/LG
P17 18RD/LB
P48 20GY/WT
P24 18PK/WT
D25 20VT/YL
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CIRCUIT
P139 20VT/WT
P140 20VT/BK
P73 20VT/PK
P75 20BK/WT
P71 20YL
P29 20BR/WT
P161 20GY/LB
P162 20GY/WT
P137 20VT/DG
P138 20VT/LG
P70 20WT
P74 20DB
P72 20YL/BK
P14420BK/LG
P143 20BK/DG
P28 20BR/RD
CAV
1
2
3
4
5
6
7
8
9
10
11
12
CIRCUIT
P111 16YL/WT
P115 16YL/DB
P119 16YL/LG
P113 16RD/WT
P121 16RD/LG
P130 16RD/TN
P43 16GY/LB
P9 20RD
P41 16GY/WT
P117 16RD/LB
P131 16RD/DG
FUNCTION
DRIVER MIRROR SENSOR GROUND
SEAT HORIZONTAL POSITION SIGNAL
REAR RISER POSITION SIGNAL
DRIVER SEAT TEMPERATURE SENSOR INPUT
PASSENGER SEAT HEATER MUX SWITCH
PASSENGER MIRROR VERTICAL POSITION SIGNAL
DRIVER MIRROR VERTICAL POSITION SIGNAL
SEAT FRONT DOWN SWITCH SENSE
SEAT REAR DOWN SWITCH SENSE
SEAT HORIZONTAL FORWARD SWITCH SENSE
RECLINER UP SWITCH SENSE
MEMORY POSITION 1 SWITCH SENSE
MEMORY SET SWITCH SENSE
PASSENGER MIRROR SENSOR GROUND
FRONT RISER POSITION SIGNAL
RECLINER POSITION SIGNAL
PASSENGER SEAT TEMPERATURE SENSOR INPUT
DRIVER SEAT HEATER MUX SWITCH
PASSENGER MIRROR HORIZONTAL POSITION SIGNAL
DRIVER MIRROR HORIZONTAL POSITION SIGNAL
SEAT FRONT UP SWITCH SENSE
SEAT REAR UP SWITCH SENSE
SEAT HORIZONTAL REARWARD SWITCH SENSE
RECLINER DOWN SWITCH SENSE
MEMORY POSITION 2 SWITCH SENSE
PCI BUS
MEMORY HEATED SEAT/MIRROR MODULE C2 - 16 WAY
FUNCTION
DRIVER SEAT HIGH HEAT LED DRIVER
PASSENGER SEAT HIGH HEAT LED DRIVER
DRIVER MIRROR COMMON DRIVER (RIGHT/DOWN)
DRIVER MIRROR LEFT DRIVER
DRIVER MIRROR UP DRIVER
SEAT SENSOR 5V SUPPLY
DRIVER MIRROR SENSOR 5V SUPPLY
PASSENGER MIRROR SENSOR 5V SUPPLY
DRIVER SEAT LOW HEAT LED DRIVER
PASSENGER SEAT LOW HEAT LED DRIVER
PASSENGER MIRROR COMMON DRIVER (RIGHT/DOWN)
PASSENGER MIRROR LEFT DRIVER
PASSENGER MIRROR UP DRIVER
PASSENGER SEAT TEMPERATURE 5V SUPPLY
DRIVER SEAT TEMPERATURE 5V SUPPLY
SEAT POSITION SENSOR GROUND
MEMORY HEATED SEAT/MIRROR MODULE C3 - 12 WAY
582
FUNCTION
SEAT REAR UP DRIVER
SEAT HORIZONTAL FORWARD DRIVER
SEAT FRONT UP DRIVER
SEAT REAR DOWN DRIVER
SEAT FRONT DOWN DRIVER
PASSENGER SEAT HEATER B(+) DRIVER
DRIVER SEAT RECLINER UP DRIVER
SEAT SWITCH B(+) SUPPLY
DRIVER SEAT RECLINER DOWN DRIVER
SEAT HORIZONTAL REARWARD DRIVER
DRIVER SEAT HEATER B(+) DRIVER
CONNECTOR PINOUTS
MEMORY HEATED SEAT/MIRROR MODULE C4 - 2 WAY
CAV
1
2
CIRCUIT
Z1 16BK
F35
FUNCTION
GROUND
FUSED B(+)
MEMORY SWITCH SET - 6 WAY
CAV
1
2
3
4
5
6
CIRCUIT
Z1 18BK
P24 18PK/WT
P22 18PK/BK
P23 18PK/RD
FUNCTION
GROUND
MEMORY POSITION 2 SWITCH SENSE
MEMORY SET SWITCH SENSE
MEMORY POSITION SWITCH SENSE
MODE DOOR ACTUATOR - BLACK 5 WAY
CAV
1
2
3
4
5
C35
C57
C37
C26
C34
CIRCUIT
22DG/YL
22DB/GY
22YL/WT
22PK/DB
22BR/WT
FUNCTION
MODE DOOR DRIVER
SENSOR GROUND
MODE DOOR FEEDBACK SIGNAL
5V SUPPLY
COMMON DOOR DRIVER
MULTI-FUNCTION SWITCH - BLACK 7 WAY
CAV
1
2
3
4
5
6
7
CIRCUIT
F13 20DB
V10 20BR
V52 20DG/RD
L40 20BR/WT
F33 18PK/RD
L324 20WT/LG
583
FUNCTION
FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
FRONT WASHER PUMP MOTOR CONTROL
FRONT WIPER MUX SWITCH SIGNAL
FUSED LOW BEAM RELAY OUTPUT
FUSED B(+)
SWITCHED HIGH BEAM RELAY CONTROL
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CONNECTOR PINOUTS
OCCUPANT RESTRAINT CONTROLLER - YELLOW/RED 23 WAY
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CIRCUIT
R42 18BK/YL
R44 18DG/YL
R45 18DG/LB
R43 18BK/LB
F14 18LG/YL
F23 18DB/YL
Z2 18BK/LG
D25 18VT/YL
-
FUNCTION
PASSENGER SQUIB NO. 1 LINE 1
PASSENGER SQUIB NO. 2 LINE 2
DRIVER SQUIB NO. 1 LINE 1
DRIVER SQUIB NO. 2 LINE 2
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
FUSED IGNITION SWITCH OUTPUT (RUN)
GROUND
PCI BUS
-
OCCUPANT RESTRAINT CONTROLLER (CONTROLLER SIDE)
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
CIRCUIT
R42 18BK/YL
R44 18DG/YL
R45 18DG/LB
R43 18BK/LB
F14 18LG/YL
F23 18DB/YL
Z2 18BK/LG
D25 18VT/YL
-
CAV
1
2
CIRCUIT
T13 20DB/BK
T14 20LG/WT
FUNCTION
PASSENGER SQUIB NO. 1 LINE 1
PASSENGER SQUIB NO. 2 LINE 2
DRIVER SQUIB NO. 1 LINE 1
DRIVER SQUIB NO. 2 LINE 2
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
FUSED IGNITION SWITCH OUTPUT (RUN)
GROUND
PCI BUS
-
OUTPUT SPEED SENSOR - DK BLUE 2 WAY
584
FUNCTION
SPEED SENSOR GROUND
OUTPUT SPEED SENSOR SIGNAL
CONNECTOR PINOUTS
OVERHEAD MAP/COURTESY LAMP - 3 WAY
CAV
A
B
C
CIRCUIT
M1 20PK
M2 20YL
Z1 20BK
FUNCTION
FUSED B(+)
COURTESY LAMPS DRIVER
GROUND
OVERHEAD TRAVEL INFORMATION SYSTEM - BLACK 6 WAY
CAV
1
2
3
4
5
6
CIRCUIT
G5 20DB/WT
Z2 20BK/LG
M1 20PK
D25 20VT/YL
-
CAV
1
2
CIRCUIT
R42 18BK/YL
R44 18DG/YL
CAV
1
2
CIRCUIT
FUNCTION
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
GROUND
FUSED B(+)
PCI BUS
-
PASSENGER AIRBAG - YELLOW 2 WAY
FUNCTION
PASSENGER SQUIB NO. 1 LINE 1
PASSENGER SQUIB NO. 1 LINE 2
PASSENGER DOOR COURTESY LAMP - BLACK 2 WAY
M2 20YL
M1 20PK
585
FUNCTION
COURTESY LAMPS DRIVER
FUSED B(+)
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CONNECTOR PINOUTS
PASSENGER DOOR CYLINDER LOCK SWITCH - GRAY 2 WAY
CAV
1
2
CIRCUIT
G72 20FG/OR
M1 20PK
FUNCTION
PASSENGER DOOR KEY CYLINDER SWITCH SENSE
FUSED B(+)
PASSENGER DOOR LOCK MOTOR/AJAR SWITCH - BLACK 4 WAY
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CAV
1
2
3
4
CIRCUIT
G74 20TN/RD
Z1 20BK
P34 16PK/BK
P33 16OR
CAV
A
B
CIRCUIT
P88 16BR/BK
Z1 18BK
CAV
A
B
CIRCUIT
FUNCTION
DOOR AJAR SWITCH SENSE
GROUND
UNLOCK RELAY OUTPUT
LOCK RELAY OUTPUT
PASSENGER HEATED SEAT BACK - GREEN 2 WAY
FUNCTION
HEATED SEAT DRIVER
GROUND
PASSENGER HEATED SEAT BACK (SEAT BACK SIDE)
BR
BR
FUNCTION
HEATED SEAT DRIVER
GROUND
586
CONNECTOR PINOUTS
PASSENGER HEATED SEAT CUSHION - BLACK 4 WAY
CAV
A
C
D
B
CIRCUIT
P130 16RD/TN
P142 20TN/DB
P144 20BK/LG
P88 16BR/BK
CAV
A
B
C
D
CIRCUIT
BL
GN
BK/RD
BK/RD
CAV
1
2
3
4
5
6
CIRCUIT
P138 20VT/LG
Z1 20BK
G5 20DB/WT
P140 20VT/BK
P134 20TN/LG
FUNCTION
PASSENGER SEAT HEATER B (+) DRIVER
PASSENGER SEAT TEMPERATURE SENSOR INPUT
PASSENGER SEAT TEMPERATURE 5V SUPPLY
HEATED SEAT DRIVER
PASSENGER HEATED SEAT CUSHION (CUSHION SIDE)
FUNCTION
SEAT HEATER B(+) DRIVER
HEATED SEAT DRIVER
SEAT TEMPERATURE SENSOR INPUT
SEAT TEMPERATURE 5V SUPPLY
C
O
N
N
E
C
T
O
R
PASSENGER HEATED SEAT SWITCH - RED 6 WAY
FUNCTION
PASSENGER SEAT LOW HEAT LED DRIVER
GROUND
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
PASSENGER SEAT HIGH HEAT LED DRIVER
PASSENGER SEAT HEATER MUX SWITCH
PASSENGER POWER DOOR LOCK SWITCH - BLACK 4 WAY
CAV
1
2
3
4
CIRCUIT
M1 20PK
G5 20DB/WT
Z1 20BK
P96 20WT/LG
587
FUNCTION
FUSED B(+)
FUSED IGNITION OUTPUT (ST-RUN)
GROUND
PASSENGER FRONT DOOR MUX SWITCH
P
I
N
O
U
T
S
CONNECTOR PINOUTS
PASSENGER POWER MIRROR (EXCEPT MEMORY) - 3 WAY
CAV
1
2
3
CIRCUIT
P70 20WT
P72 20YL/BK
P74 20DB
FUNCTION
PASSENGER MIRROR RIGHT/DOWN
PASSENGER MIRROR UP
PASSENGER MIRROR LEFT
PASSENGER POWER MIRROR (MEMORY) - NATURAL 10 WAY
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CAV
1
2
3
4
5
6
7
8
9
10
CIRCUIT
Z1 20BK
P70 20WT
C16 20LB/YL
P72 20YL/BK
P74 20DB
P162 20GY/WT
P67 20YL/RD
P68 20DG/RD
P66 20WT/BK
FUNCTION
GROUND
PASSENGER MIRROR COMMON DRIVER (RIGHT/DOWN)
FUSED REAR WINDOW DEFOGGER RELAY OUTPUT
PASSENGER MIRROR UP DRIVER
PASSENGER MIRROR LEFT DRIVER
PASSENGER MIRROR SENSOR 5V SUPPLY
PASSENGER MIRROR VERTICAL POSITION SIGNAL
PASSENGER MIRROR HORIZONTAL POSITION SIGNAL
PASSENGER MIRROR SENSOR GROUND
PASSENGER POWER SEAT FRONT RISER MOTOR - RED 2 WAY
CAV
1
2
CIRCUIT
P18 16YL/LG
P20 16RD/LG
FUNCTION
PASSENGER SEAT FRONT UP
PASSENGER SEAT FRONT DOWN
PASSENGER POWER SEAT HORIZONTAL MOTOR - BLACK 2 WAY
CAV
1
2
CIRCUIT
P14 16YL/LB
P16 16RD/LB
588
FUNCTION
PASSENGER SEAT HORIZONTAL FORWARD
PASSENGER SEAT HORIZONTAL FORWARD
CONNECTOR PINOUTS
PASSENGER POWER SEAT REAR RISER MOTOR - 2 WAY
CAV
1
2
CIRCUIT
P10 16YL/WT
P12 16RD/WT
FUNCTION
PASSENGER POWER SEAT REAR UP
PASSENGER POWER SEAT REAR DOWN
PASSENGER POWER SEAT RECLINER MOTOR - GREEN 2 WAY
CAV
1
2
CIRCUIT
P42 16GY/BK
P44 16GY/DB
FUNCTION
PASSENGER SEAT RECLINER SWITCH DOWN
PASSENGER SEAT RECLINER SWITCH UP
PASSENGER POWER SEAT SWITCH - BLUE 10 WAY
CAV
1
2
3
4
5
6
7
8
9
10
CIRCUIT
F35 16RD
P42 16GY/BK
P16 16RD/LB
P44 16GY/DB
Z1 16BK
P18 16YL/LG
P10 16YL/WT
P12 16RD/WT
P20 16RD/LG
P14 16YL/LB
CAV
1
2
CIRCUIT
Q22 16VT
Q12 16BR
FUNCTION
FUSED B(+)
PASSENGER
PASSENGER
PASSENGER
GROUND
PASSENGER
PASSENGER
PASSENGER
PASSENGER
PASSENGER
SEAT RECLINER SWITCH DOWN
POWER SEAT HORIZONTAL FORWARD
SEAT RECLINER SWITCH UP
POWER
POWER
POWER
POWER
POWER
SEAT
SEAT
SEAT
SEAT
SEAT
FRONT UP
REAR UP
FRONT DOWN
FRONT DOWN
HORIZONTAL FORWARD
PASSENGER POWER WINDOW MOTOR - BLACK 2 WAY
589
FUNCTION
PASSENGER WINDOW DRIVER (DOWN)
PASSENGER WINDOW DRIVER (UP)
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CONNECTOR PINOUTS
PASSENGER POWER WINDOW SWITCH - BLUE 6 WAY
CAV
1
2
3
4
5
6
CIRCUIT
Q22 16VT
Q16 14BR/WT
Q26 14VT/WT
Q12 16BR
Q1 14YL
FUNCTION
PASSENGER WINDOW DRIVER (DOWN)
MASTER WINDOW SWITCH (RIGHT FRONT UP)
MASTER WINDOW SWITCH (RIGHT FRONT DOWN)
PASSENGER WINDOW DRIVER (UP)
POWER WINDOW SWITCH FEED
CAV
1
2
3
4
5
CIRCUIT
X87 18LG/VT
X82 18LB/RD
X83 18YL/RD
X86 19OR/RD
X95 18WT/VT (PREMIUM
II AUDIO)
X98 18TN/VT (PREMIUM II
AUDIO)
X85 18LG/BK
X80 18LB/BK
X81 18YL/BK
X84 18OR/BK
X97 18WT/DG (PREMIUM
II AUDIO)
X96 18TN/DG (PREMIUM
II AUDIO)
POWER AMPLIFIER C1 - WHITE 12 WAY
6
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
7
8
9
10
11
12
AMPLIFIED
AMPLIFIED
AMPLIFIED
AMPLIFIED
AMPLIFIED
FUNCTION
LEFT DOOR SPEAKER (+)
RIGHT DOOR SPEAKER (+)
LEFT DOOR SAIL SPEAKER (+)
RIGHT DOOR SAIL SPEAKER (+)
LOW LEFT REAR SPEAKER (+)
AMPLIFIED LOW RIGHT REAR SPEAKER (+)
AMPLIFIED
AMPLIFIED
AMPLIFIED
AMPLIFIED
AMPLIFIED
LEFT DOOR SPEAKER (-)
RIGHT DOOR SPEAKER (-)
LEFT DOOR SAIL SPEAKER (-)
RIGHT DOOR SAIL SPEAKER (-)
LOW LEFT REAR SPEAKER (-)
AMPLIFIED LOW RIGHT REAR SPEAKER (-)
POWER AMPLIFIER C2 - WHITE 22 WAY
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
CIRCUIT
F62 16RD/WT
Z2 16BK/LG
X60 20DG/RD
X54 18VT
X53 18DG
X52 18DB/WT
X51 18BR/YL
X88 18PK/RD
X93 18WT/RD
X94 18TN/RD
F62 16RD
Z2 16BK/LG
X56 18DB/RD
X55 18BR/RD
X58 18DB/OR
X57 18BR/LB
X89 18PK/BK
X91 18WT/BK
X92 18TN/BK
590
FUNCTION
FUSED B(+)
GROUND
RADIO 12V OUTPUT
RIGHT FRONT SPEAKER (+)
LEFT FRONT SPEAKER (+)
RIGHT REAR SPEAKER (+)
LEFT REAR SPEAKER (+)
AMPLIFIED CENTER INSTRUMENT PANEL SPEAKER (+)
AMPLIFIED HIGH LEFT REAR SPEAKER (+)
AMPLIFIED HIGH RIGHT REAR SPEAKER (+)
FUSED B(+)
GROUND
RIGHT FRONT SPEAKER (-)
LEFT FRONT SPEAKER (-)
RIGHT REAR SPEAKER (-)
LEFT REAR SPEAKER (-)
AMPLIFIED CENTER INSTRUMENT PANEL SPEAKER (-)
AMPLIFIED HIGH LEFT REAR SPEAKER (-)
AMPLIFIED HIGH RIGHT REAR SPEAKER (-)
CONNECTOR PINOUTS
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
591
CONNECTOR PINOUTS
FUSES
CAV
R
P
G
K
(ABS)
L
N
O
E
B
J
H
(ABS)
C
Q
D
F
A
M
I
T
S
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CIRCUIT
-
FUNCTION
-
A1 12RD
A10 12RD/DG
FUSED B(+)
FUSED B(+)
A13 12PK/WT
A14 14RD/WT
A15 18PK
A16 12GY
A17 14RD/BR
A2 12PK/BK
A20 12RD/DB
FUSED
FUSED
FUSED
FUSED
FUSED
FUSED
FUSED
A3 14RD/TN
A30 18RD/LB
A34 12LB/RD
A37 16WT/DB
A4 10BK/PK
A5 12RD/OR
A7 14RD/BK
F142 16OR/DG
F42 16DG/LG
FUSED B(+)
FUSED B(+)
FUSED B(+)
FUSED B(+)
FUSED B(+)
FUSED B(+)
FUSED B(+)
FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT
AUTOMATIC SHUT DOWN RELAY OUTPUT
B(+)
B(+)
B(+)
B(+)
B(+)
B(+)
B(+)
A/C COMPRESSOR CLUTCH RELAY
CAV
E
B
D
C
A
CIRCUIT
A17 14RD/BR
C2 14DB/BK
C28 20DB/OR
F18 20LG/BK
CAV
E
B
A
D
C
CIRCUIT
A14 14RD/WT
A14 14RD/WT
A142 14DG/OR
K51 20DB/YL
CAV
E
B
A
C
D
CIRCUIT
-
FUNCTION
FUSED B(+)
A/C COMPRESSOR CLUTCH RELAY OUTPUT
A/C COMPRESSOR CLUTCH RELAY CONTROL
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
AUTOMATIC SHUT DOWN RELAY
FUNCTION
FUSED B(+)
FUSED B(+)
AUTOMATIC SHUT DOWN RELAY OUTPUT
AUTOMATIC SHUT DOWN RELAY CONTROL
ENGINE STARTER MOTOR RELAY
A1 12RD
A41 14YL
K90 20TN
T40 12BR
FUNCTION
FUSED B(+)
FUSED IGNITION SWITCH OUTPUT (START)
STARTER RELAY CONTROL
STARTER RELAY OUTPUT
FUEL PUMP RELAY
CAV
E
B
D
A
C
CIRCUIT
A1 12RD
A141 12DG/WT
F12 20DB/WT
K31 20BR
FUNCTION
FUSED B(+)
FUEL PUMP RELAY OUTPUT
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
FUEL PUMP RELAY CONTROL
HEADLAMP WASHER RELAY (BUILT-UP-EXPORT)
CAV
A
B
C
D
E
V58
A53
A53
V53
CIRCUIT
20BR/YL
14RD/YL
14RD/YL
14RD/OR
-
FUNCTION
HEADLAMP WASHER RELAY CONTROL
FUSED B(+)
FUSED B(+)
WASHER RELAY OUTPUT
-
592
CONNECTOR PINOUTS
HIGH SPEED RADIATOR FAN RELAY
CAV
E
B
D
C
A
CIRCUIT
A17 14RD/BR
C25 14YL
C27 20DB/LG
F18 20LG/BK
CAV
E
B
D
C
A
CIRCUIT
A16 12GY
C23 12DG
C24 20DB/PK
F18 20LG/BK
CAV
A
B
C
D
E
CIRCUIT
A35 18DB
A35 18DB
L96 18LG/RD
L95 18DG/YL
-
FUNCTION
FUSED B(+)
HIGH SPEED RADIATOR RELAY OUTPUT
HIGH SPEED RADIATOR FAN RELAY CONTROL
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
LOW SPEED RADIATOR FAN RELAY
FUNCTION
FUSED B(+)
LOW SPEED RADIATOR FAN RELAY OUTPUT
LOW SPEED RADIATOR FAN RELAY CONTROL
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
REAR FOG LAMP RELAY (BUILT-UP-EXPORT)
FUNCTION
FUSED B(+)
FUSED B(+)
REAR FOG LAMP SWITCH GROUND
FOG LAMP RELAY OUTPUT
-
TRANSMISSION CONTROL RELAY
CAV
E
B
A
D
C
CIRCUIT
A30 18RD/LB
T15 20LG
T16 16RD
Z1 20BK
CAV
A
C
E
D
B
CIRCUIT
A5 14RD/OR
V16 20VT
V3 14BR/WT
V4 14RD/YL
V5 12DG
CAV
D
A
C
B
E
CIRCUIT
A5 12RD/OR
A5 14RD/OR
V14 20RD/VT
V5 12DG
Z1 14BK
FUNCTION
FUSED B(+)
TRANSMISSION RELAY CONTROL
TRANSMISSION CONTROL RELAY OUTPUT
GROUND
WIPER HIGH/LOW RELAY
C
O
N
N
E
C
T
O
R
FUNCTION
FUSED B(+)
WIPER HIGH/LOW RELAY CONTROL
WIPER HIGH/LOW RELAY HIGH SPEED OUTPUT
WIPER RELAY COMMON
WIPER ON/OFF RELAY
FUNCTION
FUSED B(+)
FUSED B(+)
WIPER ON/OFF RELAY CONTROL
WIPER RELAY COMMON
GROUND
593
P
I
N
O
U
T
S
CONNECTOR PINOUTS
POWER MIRROR SWITCH - BLACK 13 WAY
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
CIRCUIT
P73 20YL/PK
G5 20DB/WT
P70 20WT
P74 20DB
P75 20BK/WT
Z1 20BK
M1 20PK
P72 20YL/BK
P71 20YL
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
17
18
19
20
21
22
23
24
25
25
26
27
28
29
30
31
31
32
33
34
35
36
37
38
39
40
CIRCUIT
K94 16TN/LG
K93 16TN/OR
K92 16TN/PK
K96 16TN/LB
V32 20YL/RD
A142 14DG.OR
K13 18YL/WT
K20 18DG
Z12 14BK/TN
K91 16TN/RD
K11 18WT/DB
K58 18BR/DB
K38 18GY
K14 18LB/BR
K12 18TN (3.2L/3.5L)
K12 18TN/WT (2.7L)
K236 18GY/PK (3.2L/3.5L)
F12 20DB/WT
K95 16TN/DG
K42 20DB/LG (3.2L/3.5L)
K45 18BK/VT (2.7L)
K45 20BK/VT (3.2L/3.5L)
K2 20TN/BK
K127 18BK/OR
K241 20LG/RD
K41 20BK/DG
K90 20TN (2.7L)
K90 20TN/WT (3.2L/3.5L)
K24 20GY/BK
K44 20TN/YL
K235 20LG/PK
K22 20OR/DB
K1 20DG/RD
K21 20BK/RD
K36 18VT/RD
K35 20GY/YL
FUNCTION
DRIVER MIRROR COMMON DRIVER (RIGHT/DOWN)
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
PASSENGER MIRROR COMMON DRIVER (RIGHT/DOWN)
PASSENGER MIRROR LEFT DRIVER
DRIVER MIRROR LEFT DRIVER
GROUND
FUSED B(+)
PASSENGER MIRROR UP DRIVER
DRIVER MIRROR UP DRIVER
POWERTRAIN CONTROL MODULE C1 - 40 WAY
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
594
FUNCTION
COIL DRIVER NO. 4
COIL DRIVER NO. 3
COIL DRIVER NO. 2
COIL DRIVER NO. 6
SPEED CONTROL POWER SUPPLY
AUTOMATIC SHUT DOWN RELAY OUTPUT SENSE
FUEL INJECTOR NO. 3 DRIVER
GENERATOR FIELD DRIVER
GROUND
COIL DRIVER NO. 1
FUEL INJECTOR NO. 1 DRIVER
FUEL INJECTOR NO. 6 DRIVER
FUEL INJECTOR NO. 5 DRIVER
FUEL INJECTOR NO. 4 DRIVER
FUEL INJECTOR NO. 2 DRIVER
FUEL INJECTOR NO. 2 DRIVER
SHORT RUNNER VALVE SOLENOID CONTROL
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
COIL DRIVER NO. 5
KNOCK SENSOR SIGNAL
KNOCK SENSOR SIGNAL
KNOCK SENSOR RETURN
ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
OXYGEN SENSOR GROUND
OXYGEN SENSOR 2/1 SIGNAL
OXYGEN SENSOR 1/1 SIGNAL
STARTER RELAY CONTROL
STARTER RELAY CONTROL
CRANKSHAFT POSITION SENSOR SIGNAL
CAMSHAFT POSITION SENSOR SIGNAL
EGR SENSOR SIGNAL
THROTTLE POSITION SENSOR SIGNAL
MAP SENSOR SIGNAL
INTAKE AIR TEMPERATURE SIGNAL
MANIFOLD SOLENOID CONTROL
EGR SOLENOID CONTROL
CONNECTOR PINOUTS
POWERTRAIN CONTROL MODULE C2 - GRAY 40 WAY
CAV
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
CIRCUIT
V37 20RD/LG
C18 20DB
K4 18BK/LB
K7 20OR
K10 18DB/LG
A14 14RD/WT
Z11 14BK/WT
K40 20BR/WT
K60 20YL/BK
Z12 14BK/TN
K141 20TN/WT
K341 20PK/WT
C24 20DB/PK
V36 20TN/RD
K39 20GY/RD
K59 20VT/BK
D25 20VT/YL
K6 20VT/WT
K29 20WT/PK
T10 20YL/DG
C28 20DB/OR
D21 20PK/TN
G7 20WT/OR
K51 20DB/YL
K52 18PK/BK
C27 20DB/LG
K108 18DG/LG
K71 20WT/RD
K107 18OR/RD
K31 20BR
D20 20LG
T41 20BR/YL
K106 18WT/DG
V35 20LG/RD
CAV
1
2
3
4
5
6
7
CIRCUIT
20DG/RD
18BR/YL
18DB/WT
18DG
18VT
18BR/LB
18DB/OR
FUNCTION
SPEED CONTROL SWITCH SIGNAL
A/C PRESSURE SIGNAL
SENSOR GROUND
8V SUPPLY
POWER STEERING PRESSURE SWITCH SENSE
FUSED B(+)
GROUND
IDLE AIR CONTROL NO. 3 DRIVER
IDLE AIR CONTROL NO. 2 DRIVER
GROUND
OXYGEN 1/2 SIGNAL
OXYGEN SENSOR 2/2 SIGNAL
LOW SPEED RADIATOR FAN RELAY CONTROL
SPEED CONTROL VACUUM SOLENOID CONTROL
IDLE AIR CONTROL NO. 1 DRIVER
IDLE AIR CONTROL NO. 4 DRIVER
PCI BUS
5V SUPPLY
BRAKE SWITCH SENSE
TORQUE MANAGEMENT REQUEST SENSE
A/C COMPRESSOR CLUTCH RELAY CONTROL
SCI TRANSMIT
VEHICLE SPEED SENSOR SIGNAL
AUTOMATIC SHUT DOWN RELAY CONTROL
EVAPORATIVE EMISSION SOLENOID CONTROL
HIGH SPEED RADIATOR FAN RELAY CONTROL
EVAPORATIVE EMISSION SOLENOID SENSE
EATX RPM SIGNAL
LEAK DETECTION PUMP SWITCH SENSE
FUEL PUMP RELAY CONTROL
SCI RECEIVE
TRS T41 SENSE
LEAK DETECTION PUMP SOLENOID CONTROL
SPEED CONTROL VENT SOLENOID CONTROL
RADIO C1 - BLACK 7 WAY
X60
X51
X52
X53
X54
X57
X58
595
FUNCTION
RADIO 12V OUTPUT
LEFT REAR SPEAKER (+)
RIGHT REAR SPEAKER (+)
LEFT FRONT SPEAKER (+)
RIGHT FRONT SPEAKER (+)
LEFT REAR SPEAKER (-)
RIGHT REAR SPEAKER (-)
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CONNECTOR PINOUTS
RADIO C2 - GRAY 7 WAY
CAV
1
2
3
4
5
6
7
CIRCUIT
X55 18BR/RD
X56 18DB/RD
E17 20YL/BK
E2 20OR
X12 20RD
M1 20PK
CAV
1
2
CIRCUIT
D25 20VT/YL
-
CAV
1
2
3
4
5
CIRCUIT
C15 10BK/WT
A4 10BK/PK
C80 20DB/WT
A4 10BK/PK
FUNCTION
LEFT FRONT SPEAKER (-)
RIGHT FRONT SPEAKER (-)
DAY BRIGHTNESS SENSE
PANEL LAMPS DRIVER
FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
FUSED B(+)
RADIO C3 (MIDLINE/PREMIUM) - WHITE 2 WAY
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
FUNCTION
PCI BUS
-
REAR WINDOW DEFOGGER RELAY - NATURAL 5 WAY
FUNCTION
REAR WINDOW DEFOGGER RELAY OUTPUT
FUSED B(+)
REAR WINDOW DEFOGGER RELAY CONTROL
FUSED B(+)
REAR WINDOW DEFOGGER/ANTENNA MODULE - BLACK 3 WAY
CAV
1
2
3
CIRCUIT
X60 20DG/RD
C15 10BK/WT
-
596
FUNCTION
RADIO 12V OUTPUT
REAR WINDOW DEFOGGER RELAY OUTPUT
-
CONNECTOR PINOUTS
RECIRCULATION DOOR ACTUATOR - NATURAL 5 WAY
CAV
1
2
3
4
5
CIRCUIT
C32 20GY/DB
C34 20BR/WT
CAV
1
2
3
CIRCUIT
P58 18WT
P58 18WT
FUNCTION
RECIRCULATION DOOR DRIVER
COMMON DOOR DRIVER
REMOTE KEYLESS ENTRY ANTENNA - WHITE 3 WAY
FUNCTION
RKE EXTERNAL ANTENNA
RKE EXTERNAL ANTENNA
RIGHT FOG LAMP (300M/LHS) - BLACK 2 WAY
CAV
A
B
CIRCUIT
L39 20LB
Z1 20BK
CAV
1
2
CIRCUIT
L39 20LB
Z1 20BK
FUNCTION
FOG LAMP RELAY OUTPUT
GROUND
RIGHT FOG LAMP (DODGE) - GRAY 2 WAY
597
C
O
N
N
E
C
T
O
R
FUNCTION
FOG LAMP SWITCH OUTPUT
GROUND
P
I
N
O
U
T
S
CONNECTOR PINOUTS
RIGHT FRONT DOOR SAIL SPEAKER - BLACK 2 WAY
CAV
1
1
2
2
X80
X84
X82
X86
CIRCUIT
18LB/BK (MIDLINE)
18OR/BK (PREMIUM AUDIO)
18LB/RD (MIDLINE)
18OR/RD (PREMIUM AUDIO)
CAV
1
1
2
2
X80
X80
X82
X82
CIRCUIT
18LB/BK
18LB/BK
18LB/RD
18LB/RD
CAV
A
B
CIRCUIT
L34 20RD/OR
Z1 20BK
CAV
1
2
CIRCUIT
X2 18DG/RD
Z1 18BK
AMPLIFIED
AMPLIFIED
AMPLIFIED
AMPLIFIED
FUNCTION
RIGHT SPEAKER DOOR (-)
RIGHT DOOR SAIL SPEAKER (-)
RIGHT SPEAKER DOOR (+)
RIGHT DOOR SAIL SPEAKER (+)
RIGHT FRONT DOOR SPEAKER - BLACK 2 WAY
C
O
N
N
E
C
T
O
R
AMPLIFIED
AMPLIFIED
AMPLIFIED
AMPLIFIED
RIGHT
RIGHT
RIGHT
RIGHT
DOOR
DOOR
DOOR
DOOR
FUNCTION
SPEAKER (-)
SPEAKER (-)
SPEAKER (+)
SPEAKER (+)
RIGHT HIGH BEAM HEADLAMP - BLACK 2 WAY
FUNCTION
FUSED RIGHT HIGH BEAM OUTPUT
GROUND
P
I
N
O
U
T
S
RIGHT HORN - BLACK 2 WAY
598
FUNCTION
HORN RELAY OUTPUT
GROUND0
CONNECTOR PINOUTS
RIGHT LOW BEAM HEADLAMP - GRAY 2 WAY
CAV
A
B
CIRCUIT
L44 20VT/RD
Z1 20BK
CAV
1
2
2
CIRCUIT
FUNCTION
FUSED RIGHT LOW BEAM OUTPUT
GROUND
RIGHT REAR DOOR COURTESY LAMP - BLACK 2 WAY
M1 20PK
M2 20YL (BASE)
M42 20LG (EXCEPT BASE)
FUNCTION
FUSED B(+)
COURTESY LAMPS DRIVER
COURTESY LAMPS DRIVER
RIGHT REAR DOOR LOCK MOTOR/AJAR SWITCH - BLACK 4 WAY
CAV
1
2
3
4
CIRCUIT
G74 20TN/RD
Z1 20BK
P34 16PK/BK
P33 16OR
CAV
1
2
CIRCUIT
X96 18TN/DG
X98 18TN/VT
FUNCTION
DOOR AJAR SWITCH SENSE
GROUND
UNLOCK RELAY OUTPUT
LOCK RELAY OUTPUT
RIGHT REAR DOOR SPEAKER - BLACK 2 WAY
599
FUNCTION
AMPLIFIED LOW RIGHT REAR SPEAKER (-)
AMPLIFIED LOW RIGHT REAR SPEAKER (+)
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CONNECTOR PINOUTS
RIGHT REAR READING LAMP - 2 WAY
CAV
1
2
2
CIRCUIT
FUNCTION
M1 20PK
M2 20YL (BASE)
M42 20LG (MIDLINE AND
PREMIUM AUDIO)
FUSED B(+)
COURTESY LAMPS DRIVER
COURTESY LAMPS DRIVER
RIGHT REAR SHELF SPEAKER - BLACK 2 WAY
CAV
1
1
2
2
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CIRCUIT
X52 18DB/WT (BASE)
X94 18TN/RD (MIDLINE
AND PREMIUM AUDIO)
X58 18DB/OR (BASE)
X92 18TN/BK (MIDLINE
AND PREMIUM AUDIO)
FUNCTION
RIGHT REAR SPEAKER (+)
AMPLIFIED HIGH RIGHT REAR SPEAKER (+)
RIGHT REAR SPEAKER (-)
AMPLIFIED HIGH RIGHT REAR SPEAKER (-)
RIGHT SEAT AIRBAG (BUILT-UP-EXPORT)
CAV
1
2
CIRCUIT
R32 18LB/OR
R34 18LB/WT
FUNCTION
RIGHT SEAT SQUIB LINE 1
RIGHT SEAT SQUIB LINE 2
RIGHT SIDE IMPACT AIRBAG CONTROL MODULE (BUILT-UP-EXPORT)
CAV
1
2
3
4
5
6
CIRCUIT
F14 18LG/YL
D25 18VT/YL
R32 18LB/OR
R34 18LB/WT
Z114 18BK/LG
FUNCTION
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
PCI BUS
RIGHT SEAT SQUIB LINE 1
RIGHT SEAT SQUIB LINE 2
GROUND
RIGHT SIDE IMPACT AIRBAG CONTROL MODULE (MODULE SIDE)
CAV
1
2
3
4
5
6
CIRCUIT
F14 18LG/YL
D25 18VT/YL
R32 18LB/OR
R34 18LB/WT
Z114 18BK/LG
600
FUNCTION
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
PCI BUS
RIGHT SEAT SQUIB LINE 1
RIGHT SEAT SQUIB LINE 2
GROUND
CONNECTOR PINOUTS
SEAT BELT SWITCH - BLACK 2 WAY
CAV
1
2
CIRCUIT
G10 20LG/RD
Z2 20BK/LG
CAV
1
2
3
4
5
6
CIRCUIT
D25 20VT/YL
G5 20DB/WT
Z2 20BK/LG
M1 20PK
FUNCTION
SEAT BELT SWITCH SENSE
GROUND
SENTRY KEY IMMOBILIZER MODULE - BLACK 6 WAY
FUNCTION
PCI BUS
FUSED IGNITION SWITCH OUTPUT (ST-RUN)
GROUND
FUSED B(+)
SPEED PROPORTIONAL STEERING SOLENOID - LT GRAY 2 WAY
CAV
1
2
CIRCUIT
S76 18LG/PK
S77 18VT/OR
CAV
1
2
3
4
CIRCUIT
FUNCTION
SPEED PROPORTIONAL STEERING SOLENOID (-)
SPEED PROPORTIONAL STEERING SOLENOID (+)
SUN SENSOR/VTSS LED - BLACK 4 WAY
M1 20PK
G69 22BK/OR
C57 20DB/GY
C38 20DB
601
FUNCTION
FUSED B(+)
VTSS INDICATOR DRIVER
SENSOR GROUND
SUN SENSOR SIGNAL
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CONNECTOR PINOUTS
TRACTION CONTROL SWITCH - NATURAL 6 WAY
CAV
1
2
3
4
5
6
CIRCUIT
Z2 22BK/LG
B27 20RD/YL
E2 20OR
-
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
602
FUNCTION
GROUND
TRACTION CONTROL SWITCH SENSE
PANEL LAMP DRIVER
-
CONNECTOR PINOUTS
TRANSMISSION CONTROL MODULE - BLACK 60 WAY
CAV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
CIRCUIT
T1 20LG/BK
T3 20VT
T5 20LG/RD
K71 20WT/RD
D21 20PK/TN
A41 14YL
T9 16OR/BK
T10 20YL/DG
F11 20RD/WT
K22 20OR/DB
T13 20DB/BK
T14 20LG/WT
T15 20LG
T16 16RD
T16 16RD
T19 16WT
T20 16LB
T41 20BR/YL
T42 20VT/WT
D25 20VT/YL
T44 20YL/LB
D6 20PK/LB
T47 16YL/BK
T50 18DG
K4 20BK/LB
T52 20RD/BK
Z14 16BK/YL
T54 20VT/PK
A30 18RD/LB
Z13 16BK/RD
G7 20WT/OR
T59 16PK
T60 16BR
603
FUNCTION
TRS T1 SENSE
TRS T3 SENSE
AUTOSTICK UPSHIFT SWITCH SENSE
EATX RPM SIGNAL
SCI TRANSMIT
FUSED IGNITION SWITCH OUTPUT (ST)
OVERDRIVE PRESSURE SWITCH SENSE
TORQUE MANAGEMENT REQUEST SENSE
FUSED IGNITION SWITCH OUTPUT (ST-RUN-OFF)
THROTTLE POSITION SENSOR SIGNAL
SPEED SENSOR GROUND
OUTPUT SPEED SENSOR SIGNAL
TRANSMISSION CONTROL RELAY CONTROL
TRANSMISSION CONTROL RELAY OUTPUT
TRANSMISSION CONTROL RELAY OUTPUT
2-4 SOLENOID CONTROL
LOW/REVERSE SOLENOID CONTROL
TRS T41 SENSE
TRS T42 SENSE
PCI BUS
AUTOSTICK DOWNSHIFT SWITCH SENSE
SCI RECEIVE
2-4 PRESSURE SWITCH SENSE
LOW/REVERSE PRESSURE SWITCH SENSE
SENSOR GROUND
INPUT SPEED SENSOR SIGNAL
GROUND
TRANSMISSION TEMPERATURE SENSOR SIGNAL
FUSED B(+)
GROUND
VEHICLE SPEED SENSOR SIGNAL
UNDERDRIVE SOLENOID CONTROL
OVERDRIVE SOLENOID CONTROL
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CONNECTOR PINOUTS
TRUNK KNOCK OUT SWITCH - NATURAL 2 WAY
CAV
1
2
CIRCUIT
Z1 20BK
G71 20VT/YL
FUNCTION
GROUND
DECKLID SECURITY SWITCH SENSE
TURN SIGNAL/HAZARD SWITCH - BLACK 8 WAY
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
CAV
1
2
3
4
5
6
7
8
CIRCUIT
Z1 20BK
L91 22DB/PK
L61 18LG
L32 18RD
L60 18TN
FUNCTION
GROUND
COMBINATION FLASHER
LEFT TURN SIGNAL
COMBINATION FLASHER
RIGHT TURN SIGNAL
WASHER FLUID LEVEL SWITCH - GRAY 2 WAY
CAV
1
2
CIRCUIT
Z1 20BK
G29 20BK/TN
CAV
1
2
CIRCUIT
V10 20BR
Z1 20BK
FUNCTION
GROUND
WASHER FLUID LEVEL SWITCH SENSE
WINDSHIELD WASHER PUMP MOTOR - BLACK 2 WAY
604
FUNCTION
FRONT WASHER PUMP MOTOR CONTROL
GROUND
CONNECTOR PINOUTS
WINDSHIELD WIPER MOTOR - BLACK 5 WAY
CAV
1
2
3
4
5
CIRCUIT
V4 14RD/YL
V3 14BR/WT
V55 20TN/RD
Z1 14BK
FUNCTION
FRONT WIPER RELAY HIGH SPEED OUTPUT
FRONT WIPER RELAY LOW SPEED OUTPUT
FRONT WIPER PARK SWITCH SENSE
GROUND
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
605
NOTES
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
606
SCHEMATICS
10.0
10.1
SCHEMATIC DIAGRAMS
AIRBAG SYSTEM
S
C
H
E
M
A
T
I
C
S
607
SCHEMATICS
10.2
BODY CONTROL MODULE
S
C
H
E
M
A
T
I
C
S
608
SCHEMATICS
10.3
AUDIO SYSTEM - MIDLINE
S
C
H
E
M
A
T
I
C
S
609
SCHEMATICS
10.3
AUDIO SYSTEM - PREMIUM
S
C
H
E
M
A
T
I
C
S
610
SCHEMATICS
10.3
AUDIO SYSTEM - PREMIUM 2
S
C
H
E
M
A
T
I
C
S
611
SCHEMATICS
10.4
CHIME WARNING SYSTEM
S
C
H
E
M
A
T
I
C
S
612
SCHEMATICS
10.5
CLIMATE CONTROL - AUTOMATIC TEMPERATURE CONTROL
S
C
H
E
M
A
T
I
C
S
613
SCHEMATICS
10.5
CLIMATE CONTROL - MANUAL TEMPERATURE CONTROL
10.6
COMMUNICATIONS
S
C
H
E
M
A
T
I
C
S
614
SCHEMATICS
10.7
DOOR AJAR
S
C
H
E
M
A
T
I
C
S
615
SCHEMATICS
10.8
EXTERIOR LIGHTING
S
C
H
E
M
A
T
I
C
S
616
SCHEMATICS
10.9
INSTRUMENT CLUSTER
S
C
H
E
M
A
T
I
C
S
617
SCHEMATICS
10.10
INTERIOR LIGHTING
S
C
H
E
M
A
T
I
C
S
618
SCHEMATICS
10.11
MEMORY SYSTEM
S
C
H
E
M
A
T
I
C
S
619
SCHEMATICS
10.12
OTIS
S
C
H
E
M
A
T
I
C
S
620
SCHEMATICS
10.13
POWER DOOR LOCKS/RKE
S
C
H
E
M
A
T
I
C
S
621
SCHEMATICS
10.14
SENTRY KEY IMMOBILIZER
10.15
SPEED PROPORTIONAL STEERING
S
C
H
E
M
A
T
I
C
S
622
SCHEMATICS
10.16
VEHICLE THEFT SECURITY SYSTEM
S
C
H
E
M
A
T
I
C
S
623
SCHEMATICS
10.17
WIPER SYSTEM
S
C
H
E
M
A
T
I
C
S
624
NOTES
S
C
H
E
M
A
T
I
C
S
625
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