ENGINE DIAGNOSTICS & CONTROL
CONTROL SYSTEM WIRING DIAGRAM
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Engine Diagnostics & Control
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Engine Diagnostics & Control
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MONITORING SYSTEM AND CONTROL SYSTEM DEVICE RELATIONSHIP CHART
×: Applicable
Component
Input
×
Battery
Ignition switch
×
×
× ×
×
×
A/C switch, refrigerant pressure switch (high, low pressure)
TP sensor
×
× ×
ECT sensor
× × × × × × × ×
IAT sensor
× × × × × × × ×
MAF sensor
× × × × × × ×
Front HO2S
× ×
×
× ×
Rear HO2S
× ×
×
×
BARO sensor
× × × × ×
Eccentric shaft position sensor
× × × × × × × ×
Fuel gauge sender unit
×
ABS HU/CM or DSC HU/CM
×
× ×
× ×
×
Output
×
Fuel injector
Front HO2S heater
×
Rear HO2S heater
×
Purge solenoid valve
×
×
× ×
×
AIR solenoid valve
×
EVAP system leak detection pump
×
AIR pump relay
×
Cooling fan relay (No.1, No.2 and No.3)
MIL
× × × × × × × ×
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Engine Diagnostics & Control
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OBD-II PENDING TROUBLE CODE
•
These appear when a problem is detected in a monitored system. The code for a failed system is stored
in the PCM memory in the first drive cycle. This code is called the pending code. If the problem is not
found in a second drive cycle, the PCM judges that the system returned to normal or the problem was
mistakenly detected, and deletes the pending code. If the problem is found in a second drive cycle too,
the PCM judges that the system has failed, and the DTC is stored.
OBD-II FREEZE FRAME DATA
•
This is the technical data which indicates the engine condition at the time of the first malfunction. This
data will remain in the memory even if another emission-related DTC is stored, with the exception of
Fuel system or Misfire DTCs. Once freeze frame data for Fuel system or Misfire DTC is stored, it will
overwrite any previous data and the freeze frame will not be overwritten again.
OBD-II ON-BOARD SYSTEM READINESS TEST
•
This shows the OBD-II systems operating status. If any monitor function is incomplete, WDS or
equivalent will identify which monitor function has not been completed. The Fuel system, Misfire and
CCM are continuous monitoring-type functions. The HO2S, Thermostat, AIR system, Catalyst and
EVAP system will be monitored under drive cycles. The OBD-II diagnostic system is initialized by
performing the DTC cancellation procedure or disconnecting the negative battery cable.
OBD-II DIAGNOSTIC MONITORING TEST RESULT
•
The results from the technical data of the intermittent monitor system are used to determine whether the
system is normal or not. They also display the system thresholds and diagnostic results. The intermittent
monitor system monitors the HO2S, Thermostat, AIR system, Catalyst and EVAP system.
OBD-II READ/CLEAR DIAGNOSTIC TEST RESULT
•
This retrieves all stored DTCs in the PCM and clears the on-board readiness test results, freeze frame
data, DTC, diagnostic monitoring test results and pending trouble code.
OBD-II PARAMETER IDENTIFICATION (PID) ACCESS
•
The PID mode allows access to certain data values, analog and digital inputs and outputs, calculated
values and system status information. Since the PID values for output devices are the PCM internal data
values, inspect each device to identify which output devices are malfunctioning.
ON-BOARD DIAGNOSTIC TEST
DTC Reading Procedure
1. Perform the necessary vehicle preparation and visual inspection.
2. Connect the WDS or equivalent to the vehicle DLC-2 16-pin connector located in the driver
compartment.
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Engine Diagnostics & Control
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3. Retrieve the DTCs using the WDS or equivalent.
Pending Trouble Code Access Procedure
1. Perform the necessary vehicle preparation and visual inspection.
2. Connect the WDS or equivalent to the vehicle DLC-2 16-pin connector located in the driver
compartment.
3. Retrieve the pending trouble codes using the WDS or equivalent.
Freeze Frame PID Data Access Procedure
1. Perform the necessary vehicle preparation and visual inspection.
2. Connect the WDS or equivalent to the vehicle DLC-2 16-pin connector located in the driver
compartment.
3. Record the freeze frame PID data using the WDS or equivalent.
On-Board System Readiness Tests Access Procedure
1. Perform the necessary vehicle preparation and visual inspection.
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Engine Diagnostics & Control
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2. Connect the WDS or equivalent to the vehicle DLC-2 16-pin connector located in the driver
compartment.
3. Monitor the OBD-II systems operating status using the WDS or equivalent.
PID/DATA Monitor and Record Procedure
1. Perform the necessary vehicle preparation and visual inspection.
2. Connect the WDS or equivalent to the vehicle DLC-2 16-pin connector located in the driver
compartment.
3. Access and monitor PIDs using the WDS or equivalent.
Diagnostic Monitoring Test Results Access Procedure
1. Perform the necessary vehicle preparation and visual inspection.
2. Connect the WDS or equivalent to the vehicle DLC-2 16-pin connector located in the driver
compartment.
3. Access to the diagnostic monitoring test results and read the test results using the WDS or equivalent.
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Engine Diagnostics & Control
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AFTER REPAIR PROCEDURE
1. Connect the WDS or equivalent to the DLC-2.
2. Cycle the ignition switch off, then to the ON position (Engine off).
3. Record DTC if retrieved.
4. Clear all diagnostic data using the WDS or equivalent.
OBD-II DRIVE MODE
•
•
Performing the Drive Mode inspects the OBD-II system for proper operation and must be performed to
ensure that no additional DTCs are present.
During the Drive Mode, the following systems are inspected:
HO2S heater
HO2S
TWC
Fuel system, Misfire and EVAP system
CAUTION:
•
•
While performing the Drive Mode, always operate the vehicle in a safe and lawful manner.
When the WDS or equivalent is used to observe monitor system status while driving, be sure to have
another technician with you, or record the data in the WDS or equivalent using the PID/DATA
MONITOR AND RECORD function and inspect later.
NOTE:
•
•
•
•
Vehicle speed and engine speed detected by the PCM may differ from that indicated by the speedometer
and tachometer. Use the WDS or equivalent to monitor vehicle speed.
If the OBD-II system inspection is not completed during the Drive Mode, the following causes are
considered:
The OBD-II system detected a malfunction.
The Drive Mode procedure was not completed correctly.
Disconnecting the battery will reset the memory. Do not disconnect the battery during and after the
Drive Mode.
The WDS or equivalent can be used at anytime through the course of the Drive Mode to monitor the
completion status. Monitoring can be done by viewing the ON BOARD SYSTEM READINESS menu.
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Engine Diagnostics & Control
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Mode 1 (PCM Adaptive Memory Produce Drive Mode)
1. Start the engine and warm it up completely.
2. Verify the following conditions and correct if necessary:
• All accessory loads (A/C, headlights, blower fan, rear window defroster) are off.
• Initial ignition timing and idle speed are within specification.
3. Perform no load racing at the engine speed of 2,500
3,500 rpm for more than 15 s .
4. Continuously perform no load racing at the engine speed of 4,500
5,000 rpm for more than 15 s .
5. Idle the engine for more than 60 s after the cooling fan stopped.
6. Turn the ignition switch off.
Mode 3 (HO2S heater, HO2S, and TWC Repair Verification Drive Mode)
1. Perform the Mode 1 first.
2. Verify that all accessory loads (A/C, headlights, blower fan, rear window defroster) are off.
3. Drive the vehicle as shown in the graph. The driving condition before driving at constant speed is not
specified.
4. Stop the vehicle and access the ON BOARD SYSTEM READINESS to inspect the Drive Mode
completion status.
• If completed, RFC changes from No to Yes.
• If not completed, turn the ignition switch off, then go back to Step 3.
5. Access the DIAGNOSTIC MONITORING TEST RESULTS to inspect the monitor results.
• If MEAS are not within specification, repair has not been completed.
6. Verify that no DTCs are available.
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Engine Diagnostics & Control
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Mode 6 (EVAP System Repair Verification Drive Mode)
NOTE:
•
If the Mode 6 cannot be performed (you cannot drive the vehicle under the Mode 6 condition), perform
the "Evaporative System Test" as an alternative. (See Evaporative System Test .)
1. Verify that all of the following PIDs are within the stated specifications. All PIDs must be within
specifications before the engine is started to initiate the evaporative system test.
• BARO: More than 72.3 kPa {542 mmHg, 21.3 inHg}
• IAT: 5
35 °C {41
95 °F}
• FLI: 15
85 %
• B+: 10.9
14.6 V
2. Clear the DTC from the PCM memory using the WDS or equivalent.
3. Start the engine and idle it for more than 10 s , then turn the ignition switch off.
4. Leave the vehicle is this condition for more than 5 hours .
5. Start the engine and idle it for more than 15 min .
6. Drive the vehicle at the engine speed of 65
80 km/h {40
50 mph} for more than 5 min .
7. Stop the vehicle and turn the ignition switch off.
8. Leave the vehicle in this condition for more than 10 min .
9. Start the engine.
10. Access the ON BOARD SYSTEM READINESS to inspect the Drive Mode completion status.
• If completed, RFC changes from No to Yes.
• If not completed, turn the ignition switch off, then go back to Step 1.
11. Access the DIAGNOSTIC MONITORING TEST RESULTS to inspect the monitor results.
• If MEAS are not within specification, repair has not been completed.
12. Verify that no DTCs are available.
Notes:
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Engine Diagnostics & Control
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DIAGNOSTIC MONITORING TEST RESULTS
•
The purpose of this test mode is to confirm the result of OBD-II monitor diagnostic test results. The
result values stored when a particular monitor is completed are displayed. If the monitor is not
completed, the initial value is displayed.
Test ID
Description
10:01:80 Response lean to rich
10:01:81 Response rich to lean
Related system
HO2S (front HO2S)
10:02:01 Rich to lean sensor threshold voltage
10:02:03 Low sensor voltage for switch time calculation
10:02:04 High sensor voltage for switch time calculation
HO2S (rear HO2S)
10:02:05 Rich to lean sensor switching time
10:21:80 Front and rear HO2S switching time ratio
Catalyst
10:3A:80 Large leak check
10:3B:80 Small leak check
10:3C:80 Very small leak check
EVAP system
10:3D:80 Purge flow monitor
10:71:80 Secondary airflow test
10:E1:80 Heat radiation ratio
10:E1:81 ECT
AIR system
Thermostat
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Engine Diagnostics & Control
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DTC TABLE
×: Applicable
: Not applicable
DTC
No.
Condition
MIL
DC
Monitor
item*
Memory
function
Page
P0030
Front HO2S heater control circuit
problem
ON
2
HO2S
heater
×
(See DTC
P0030 )
P0031
Front HO2S heater control circuit low
ON
2
HO2S
heater
×
(See DTC
P0031 )
P0032
Front HO2S heater control circuit high
ON
2
HO2S
heater
×
(See DTC
P0032 )
P0037
Rear HO2S heater control circuit low
ON
2
HO2S
heater
×
(See DTC
P0037 )
P0038
Rear HO2S heater control circuit high
ON
2
HO2S
heater
×
(See DTC
P0038 )
P0076
VDI solenoid valve control circuit low
OFF
2
CCM
×
(See DTC
P0076 )
P0077
VDI solenoid valve control circuit high
OFF
2
CCM
×
(See DTC
P0077 )
P0101
MAF sensor circuit range/performance
problem
ON
2
CCM
×
(See DTC
P0101 )
P0102
MAF sensor circuit low input
ON
1
CCM
×
(See DTC
P0102 )
P0103
MAF sensor circuit high input
ON
1
CCM
×
(See DTC
P0103 )
P0107
BARO sensor circuit low input
ON
1
CCM
×
(See DTC
P0107 )
P0108
BARO sensor circuit high input
ON
1
CCM
×
(See DTC
P0108 )
P0111
IAT sensor circuit range/performance
problem
ON
2
CCM
×
(See DTC
P0111 )
P0112
IAT sensor circuit low input
ON
1
CCM
×
(See DTC
P0112 )
P0113
IAT sensor circuit high input
ON
1
CCM
×
(See DTC
P0113 )
P0117
ECT sensor circuit low input
ON
1
CCM
×
(See DTC
P0117 )
P0118
ECT sensor circuit high input
ON
1
CCM
×
(See DTC
P0118 )
P0122
TP sensor No.1 circuit low input
ON
1
CCM
×
(See DTC
P0122 )
P0123
TP sensor No.1 circuit high input
ON
1
CCM
×
(See DTC
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Engine Diagnostics & Control
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P0123 )
(See DTC
P0125 )
P0125
Insufficient coolant temperature for
closed loop fuel control
ON
2
CCM
×
P0126
Insufficient coolant temperature for
stable operation
ON
2
Thermostat
×
P0128
Coolant thermostat problem
ON
2
Thermostat
×
(See DTC
P0126, P0128
)
P0130
Front HO2S circuit problem
ON
2
HO2S
×
(See DTC
P0130 )
P0131
Front HO2S circuit low voltage
ON
2
HO2S
×
(See DTC
P0131 )
P0132
Front HO2S circuit high voltage
ON
2
HO2S
×
(See DTC
P0132 )
P0133
Front HO2S circuit slow response
ON
2
HO2S
×
(See DTC
P0133 )
P0138
Rear HO2S circuit high voltage
ON
2
HO2S
×
(See DTC
P0138 )
P0139
Rear HO2S circuit slow response
ON
2
HO2S
×
(See DTC
P0139 )
P0171
System too lean
ON
2
Fuel system ×
(See DTC
P0171 )
P0172
System too rich
ON
2
Fuel system ×
(See DTC
P0172 )
P0222
TP sensor No.2 circuit low input
ON
1
CCM
×
(See DTC
P0222 )
P0223
TP sensor No.2 circuit high input
ON
1
CCM
×
(See DTC
P0223 )
P0300
Random misfire detected
Flash/ON
1 or
Misfire
2
×
(See DTC
P0300 )
P0301
Front rotor misfire detected
Flash/ON
1 or
Misfire
2
×
P0302
Rear rotor misfire detected
Flash/ON
1 or
Misfire
2
×
(See DTC
P0301, P0302
)
P0327
KS circuit low input
ON
1
CCM
×
(See DTC
P0327 )
P0328
KS circuit high input
ON
1
CCM
×
(See DTC
P0328 )
P0335
Eccentric shaft position sensor circuit
problem
ON
1
CCM
×
(See DTC
P0335 )
P0336
Eccentric shaft position sensor circuit
range/performance problem
ON
1
CCM
×
(See DTC
P0336 )
P0410
AIR system problem
ON
2
AIR system ×
(See DTC
P0410 )
P0420
Catalyst system efficiency below
threshold
ON
2
Catalyst
×
(See DTC
P0420 )
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Engine Diagnostics & Control
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P0441
EVAP system incorrect purge flow
ON
2
EVAP
system
×
(See DTC
P0441 )
P0442
EVAP system leak detected (small leak)
ON
2
EVAP
system
×
(See DTC
P0442 )
P0443
Purge solenoid valve circuit problem
ON
2
CCM
×
(See DTC
P0443 )
P0446
EVAP system vent control circuit
problem
ON
2
EVAP
system
×
(See DTC
P0446 )
P0455
EVAP system leak detected (large leak)
ON
2
EVAP
system
×
(See DTC
P0455 )
P0456
EVAP system leak detected (very small
leak)
ON
2
EVAP
system
×
(See DTC
P0456 )
P0461
Fuel gauge sender unit circuit
range/performance problem
ON
2
CCM
×
(See DTC
P0461 )
P0462
Fuel gauge sender unit circuit low input
ON
2
CCM
×
(See DTC
P0462 )
P0463
Fuel gauge sender unit circuit high input
ON
2
CCM
×
(See DTC
P0463 )
P0480
Cooling fan No.1 control circuit problem OFF
2
Other
×
(See DTC
P0480 )
P0481
Cooling fan No.2 control circuit problem OFF
2
Other
×
(See DTC
P0481 )
P0500
VSS circuit problem
ON
2
CCM
×
(See DTC
P0500 )
P0505
Idle air control system problem
OFF



(See DTC
P0505 )
P0506
Idle air control system RPM lower than
expected
ON
2
CCM
×
(See DTC
P0506 )
P0507
Idle air control system RPM higher than
expected
ON
2
CCM
×
(See DTC
P0507 )
P0562
System voltage low (KAM)
ON
1
CCM
×
(See DTC
P0562 )
P0564
Cruise control switch input circuit
problem
OFF
1
Other
×
(See DTC
P0564 )
P0571
Brake switch input circuit problem
OFF
1
Other
×
(See DTC
P0571 )
P0601
PCM memory check sum error
ON
1
CCM
×
(See DTC
P0601 )
P0602
PCM programming error
ON
1
CCM
×
(See DTC
P0602 )
P0604
PCM random access memory error
ON
1
CCM
×
(See DTC
P0604 )
P0610
PCM vehicle options error
ON
1
CCM
×
(See DTC
P0610 )
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Engine Diagnostics & Control
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P0638
Throttle actuator control circuit
range/performance problem
ON
1
CCM
×
(See DTC
P0638 )
P0661
SSV solenoid valve control circuit low
ON
2
CCM
×
(See DTC
P0661 )
P0662
SSV solenoid valve control circuit high
ON
2
CCM
×
(See DTC
P0662 )
P0703
Brake switch No.1 input circuit problem
ON
2
CCM
×
(See DTC
P0703 )
P0704
Clutch switch input circuit problem
ON
2
CCM
×
(See DTC
P0704 )
P0850
Neutral switch input circuit problem
ON
2
CCM
×
(See DTC
P0850 )
P1260
Immobilizer system problem
OFF
1
Other

(See DTC
P1260 )
P1574
TP sensor output incongruent
ON
1
CCM
×
(See DTC
P1574 )
P1577
APP sensor output incongruent
ON
1
CCM
×
(See DTC
P1577 )
P1686
Metering oil pump control circuit low
flow side problem
ON
1
Other
×
(See DTC
P1686 )
P1687
Metering oil pump control circuit high
flow side problem
ON
1
Other
×
(See DTC
P1687 )
P1688
Metering oil pump control circuit initial
check problem
ON
1
Other
×
(See DTC
P1688 )
P2004
APV stuck open
ON
2
CCM
×
(See DTC
P2004 )
P2006
APV motor control circuit IC problem
ON
2
CCM
×
(See DTC
P2006 )
P2008
APV motor control circuit/open
ON
2
CCM
×
(See DTC
P2008 )
P2017
APV position sensor circuit problem
ON
2
CCM
×
(See DTC
P2017 )
P2070
SSV stuck open
ON
2
CCM
×
(See DTC
P2070 )
P2096
Target A/F feedback system too lean
ON
2
Fuel system ×
(See DTC
P2096 )
P2097
Target A/F feedback system too rich
ON
2
Fuel system ×
(See DTC
P2097 )
P2101
Drive-by-wire relay control circuit
problem
ON
1
CCM
×
(See DTC
P2101 )
P2106
Throttle actuator control system-forced
limited power
ON
1
CCM
×
(See DTC
P2106 )
P2107
Throttle actuator control module
processor error
ON
1
CCM
×
(See DTC
P2107 )
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Engine Diagnostics & Control
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P2108
Throttle actuator control module
performance error
ON
1
CCM
×
(See DTC
P2108 )
P2109
TP sensor minimum stop
range/performance problem
ON
1
CCM
×
(See DTC
P2109 )
P2112
Throttle actuator control system
range/performance problem
ON
1
CCM
×
(See DTC
P2112 )
P2119
Throttle actuator control throttle body
range/performance problem
ON
2
CCM
×
(See DTC
P2119 )
P2122
APP sensor No.1 circuit low input
ON
1
CCM
×
(See DTC
P2122 )
P2123
APP sensor No.1 circuit high input
ON
1
CCM
×
(See DTC
P2123 )
P2127
APP sensor No.2 circuit low input
ON
1
CCM
×
(See DTC
P2127 )
P2128
APP sensor No.2 circuit high input
ON
1
CCM
×
(See DTC
P2128 )
P2135
TP sensor No.1/No.2 voltage correlation
problem
ON
1
CCM
×
(See DTC
P2135 )
P2136
TP sensor No.1/No.3 voltage correlation
problem
ON
1
CCM
×
(See DTC
P2136 )
P2138
APP sensor No.1/No.2 voltage
correlation problem
ON
1
CCM
×
(See DTC
P2138 )
P2195
Front HO2S signal stuck lean
ON
2
HO2S
×
(See DTC
P2195 )
P2196
Front HO2S signal stuck rich
ON
2
HO2S
×
(See DTC
P2196 )
P2257
AIR pump relay control circuit low
ON
2
CCM
×
(See DTC
P2257 )
P2258
AIR pump relay control circuit high
ON
2
CCM
×
(See DTC
P2258 )
P2259
AIR solenoid valve control circuit low
ON
2
CCM
×
(See DTC
P2259 )
P2260
AIR solenoid valve control circuit high
ON
2
CCM
×
(See DTC
P2260 )
P2270
Rear HO2S signal stuck lean
ON
2
HO2S
×
(See DTC
P2270 )
P2271
Rear HO2S signal stuck rich
ON
2
HO2S
×
(See DTC
P2271 )
P2401
EVAP system leak detection pump
control circuit low
ON
2
EVAP
system
×
(See DTC
P2401 )
P2402
EVAP system leak detection pump
control circuit high
ON
2
EVAP
system
×
(See DTC
P2402 )
P2404
EVAP system leak detection pump sense
ON
circuit range/performance problem
2
EVAP
system
×
(See DTC
P2404 )
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Engine Diagnostics & Control
Page 15
P2405
EVAP system leak detection pump sense
ON
circuit low
2
EVAP
system
×
(See DTC
P2405 )
P2406
EVAP system leak detection pump sense
ON
circuit high
2
EVAP
system
×
(See DTC
P2406 )
P2407
EVAP system leak detection pump sense
ON
circuit intermittent/erratic problem
2
EVAP
system
×
(See DTC
P2407 )
P2502
Charging system voltage problem
OFF
1
Other
×
(See DTC
P2502 )
P2503
Charging system voltage low
OFF
1
Other
×
(See DTC
P2503 )
P2504
Charging system voltage high
OFF
1
Other
×
(See DTC
P2504 )
U0073
CAN system communication error
U0101
Communication error to TCM
U0121
Communication error to ABS HU/CM
Communication error to instrument
U0155
cluster
U0167
(See DTC TABLE [MULTIPLEX COMMUNICATION
SYSTEM] )
Communication error to keyless control
module
*
Indicates the applicable item in On-Board System Readiness Test defined by CARB.
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Engine Diagnostics & Control
Page 16
DTC P00XX
DTC P0030
DTC P0030
Front HO2S heater control circuit problem
•
The PCM monitors the front HO2S impedance when under the front HO2S heater
control for 200 s . If the impedance is more than 44 ohms , the PCM determines
that there is a front HO2S heater control circuit problem.
Diagnostic support note
DETECTION
CONDITION
•
•
This is a continuous monitor (HO2S heater).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
Front HO2S heater malfunction
Connector or terminal malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 17
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE OR
STORED DTC
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Go to the appropriate DTC inspection.
Yes
(See DTC TABLE .)
3
•
•
•
Turn the ignition switch off, then to
the ON position (Engine off).
Verify the related PENDING CODE
or stored DTCs.
Are other DTCs present?
INSPECT FRONT HO2S CONNECTOR
FOR POOR CONNECTION
4
•
•
•
•
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 7.
Turn the ignition switch off.
Disconnect the front HO2S connector.
Inspect for poor connection (such as
No Go to the next step.
damaged/pulled-out pins, and
corrosion).
Is there any malfunction?
Replace the front HO2S, then go to Step 7.
INSPECT FRONT HO2S HEATER
•
5
Yes
(See FRONT HEATED OXYGEN SENSOR
(HO2S) REMOVAL/INSTALLATION .)
(See FRONT HEATED OXYGEN
SENSOR (HO2S) INSPECTION .)
•
6
Inspect the front HO2S heater.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
No Go to the next step.
Yes
Repair or replace the terminal, then go to the next
step.
(w)
Engine Diagnostics & Control
Page 18
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, and
corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0030 COMPLETED
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
7
•
Make sure to reconnect all
disconnected connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 3.
(See OBD-II DRIVE MODE .)
•
No Go to the next step.
Is the PENDING CODE same as the
DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
8
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE
.)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
(w)
Engine Diagnostics & Control
Page 19
DTC P0031
DTC P0031
Front HO2S heater control circuit low
•
The PCM monitors the front HO2S heater control voltage when the PCM turns the
front HO2S heater off. If the control voltage exceeds 25 % of the battery voltage,
the PCM determines that the front HO2S heater control circuit voltage is low.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is a continuous monitor (HO2S heater).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Front HO2S heater malfunction
Connector or terminal malfunction
Short to power supply in wiring harness between front HO2S terminal D and PCM
terminal 1V
PCM malfunction
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Engine Diagnostics & Control
Page 20
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
INSPECT FRONT HO2S CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 7.
POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the front HO2S connector.
Inspect for poor connection (such as
damaged/pulled-out pins, and
corrosion).
Is there any malfunction?
INSPECT FRONT HO2S HEATER
CONTROL CIRCUIT FOR SHORT TO
POWER SUPPLY
4
•
•
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between front
HO2S terminal D (wiring harness-side)
and body GND.
Is the voltage B+ ?
No Go to the next step.
Yes
No Go to the next step.
Replace the front HO2S, then go to Step 7.
INSPECT FRONT HO2S HEATER
•
5
Inspect the front HO2S heater.
Repair or replace the wiring harness for a
possible short to power supply, then go to Step 7.
Yes
(See FRONT HEATED OXYGEN SENSOR
(HO2S) REMOVAL/INSTALLATION .)
(See FRONT HEATED OXYGEN
SENSOR (HO2S) INSPECTION .)
•
Is there any malfunction ?
No Go to the next step.
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Engine Diagnostics & Control
Page 21
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
6
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, and
corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0031 COMPLETED
Yes
Repair or replace the terminal, then go to the next
step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
7
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 3.
(See OBD-II DRIVE MODE .)
•
No Go to the next step.
Is the PENDING CODE same as the
DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
8
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
(w)
Engine Diagnostics & Control
Page 22
DTC P0032
DTC P0032
Front HO2S heater control circuit high
•
The PCM monitors the front HO2S heater control voltage when the PCM turns the
front HO2S heater on. If the control voltage is less than 25 % of the battery
voltage, the PCM determines that the front HO2S heater control circuit voltage is
high.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is a continuous monitor (HO2S heater).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Front HO2S heater malfunction
Connector or terminal malfunction
Open circuit in wiring harness between main relay terminal C and front HO2S
terminal C
Short to GND in wiring harness between main relay terminal C and front HO2S
terminal C
Open circuit in wiring harness between front HO2S terminal D and PCM terminal
1V
Short to GND in wiring harness between front HO2S terminal D and PCM terminal
1V
PCM malfunction
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Engine Diagnostics & Control
Page 23
Notes:
(w)
Engine Diagnostics & Control
Page 24
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information
available?
INSPECT FRONT HO2S CONNECTOR FOR
POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the front HO2S connector.
Inspect for poor connection (such as
damaged/pulled-out pins, and corrosion).
Is there any malfunction?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
9.
No Go to the next step.
Yes Go to the next step.
INSPECT FRONT HO2S HEATER POWER
CIRCUIT FOR OPEN CIRCUIT OR SHORT TO
GND
4
•
•
•
Turn the ignition switch to the ON
Repair or replace the wiring harness for a
position (Engine off).
No
possible
open circuit or short to GND, then go
Measure the voltage between front HO2S
to Step 9.
terminal C (wiring harness-side) and body
GND.
Is the voltage B+ ?
INSPECT FRONT HO2S HEATER CONTROL
CIRCUIT FOR SHORT TO GND
5
•
•
•
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 9.
Turn the ignition switch off.
Inspect for continuity between front HO2S
terminal D (wiring harness-side) and body No Go to the next step.
GND.
Is there continuity?
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Engine Diagnostics & Control
Page 25
INSPECT FRONT HO2S HEATER
•
6
Inspect the front HO2S heater.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, and corrosion).
Is there any malfunction?
INSPECT FRONT HO2S HEATER CONTROL
CIRCUIT FOR OPEN CIRCUIT
8
Yes
(See FRONT HEATED OXYGEN
SENSOR (HO2S) INSPECTION .)
•
7
Replace the front HO2S, then go to Step 9.
•
•
•
(See FRONT HEATED OXYGEN SENSOR
(HO2S) REMOVAL/INSTALLATION .)
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
9.
No Go to the next step.
Yes Go to the next step.
Turn the ignition switch off.
Inspect for continuity between front HO2S
Repair or replace the wiring harness for a
terminal D (wiring harness-side) and PCM No possible open circuit, then go to the next step.
terminal 1V (wiring harness-side).
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P0032 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
9
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 3.
(See OBD-II DRIVE MODE .)
•
No Go to the next step.
Is the PENDING CODE same as the DTC
present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
10
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
(w)
Engine Diagnostics & Control
Page 26
DTC P0037
DTC P0037
Rear HO2S heater control circuit low
•
The PCM monitors the rear HO2S heater control voltage when the PCM turns the
rear HO2S heater off. If the control voltage exceeds 57 % of the battery voltage,
the PCM determines that the rear HO2S heater control circuit voltage is low.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is a continuous monitor (HO2S heater).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Rear HO2S heater malfunction
Connector or terminal malfunction
Short to power supply in wiring harness between rear HO2S terminal D and PCM
terminal 2A
PCM malfunction
(w)
Engine Diagnostics & Control
Page 27
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT REAR HO2S CONNECTOR FOR
POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the rear HO2S connector.
Inspect for poor connection (such as
damaged/pulled-out pins, and
corrosion).
Is there any malfunction?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 7.
No Go to the next step.
Repair or replace the wiring harness for a
INSPECT REAR HO2S HEATER CONTROL
Yes
possible short to power supply, then go to Step 7.
CIRCUIT FOR SHORT TO POWER SUPPLY
•
4
•
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between rear
HO2S terminal D (wiring harness-side)
and body GND.
Is the voltage B+ ?
No Go to the next step.
Replace the rear HO2S, then go to Step 7.
INSPECT REAR HO2S HEATER
•
5
Inspect the rear HO2S heater.
Yes
(See REAR HEATED OXYGEN SENSOR
(HO2S) REMOVAL/INSTALLATION .)
(See REAR HEATED OXYGEN
SENSOR (HO2S) INSPECTION .)
•
Is there any malfunction ?
No Go to the next step.
(w)
Engine Diagnostics & Control
Page 28
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
6
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, and
corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0037 COMPLETED
Yes
Repair or replace the terminal, then go to the next
step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
7
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 3.
(See OBD-II DRIVE MODE .)
•
No Go to the next step.
Is the PENDING CODE same as the
DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
8
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
(w)
Engine Diagnostics & Control
Page 29
DTC P0038
DTC P0038
Rear HO2S heater control circuit high
•
The PCM monitors the rear HO2S heater control voltage when the PCM turns the
rear HO2S heater on. If the control voltage is less than 57 % of the battery voltage,
the PCM determines that the rear HO2S heater control circuit voltage is high.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is a continuous monitor (HO2S heater).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Rear HO2S heater malfunction
Connector or terminal malfunction
Open circuit in wiring harness between main relay terminal C and rear HO2S
terminal C
Short to GND in wiring harness between main relay terminal C and rear HO2S
terminal C
Open circuit in wiring harness between front HO2S terminal D and PCM terminal
2A
Short to GND in wiring harness between front HO2S terminal D and PCM terminal
2A
PCM malfunction
(w)
Engine Diagnostics & Control
Page 30
(w)
Engine Diagnostics & Control
Page 31
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information
available?
INSPECT REAR HO2S CONNECTOR FOR
POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the rear HO2S connector.
Inspect for poor connection (such as
damaged/pulled-out pins, and corrosion).
Is there any malfunction?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
9.
No Go to the next step.
Yes Go to the next step.
INSPECT REAR HO2S HEATER POWER
CIRCUIT FOR OPEN CIRCUIT OR SHORT TO
GND
4
•
•
•
Turn the ignition switch to the ON
Repair or replace the wiring harness for a
position (Engine off).
No
possible
open circuit or short to GND, then go
Measure the voltage between rear HO2S
to Step 9.
terminal C (wiring harness-side) and body
GND.
Is the voltage B+ ?
INSPECT REAR HO2S HEATER CONTROL
CIRCUIT FOR SHORT TO GND
5
•
•
•
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 9.
Turn the ignition switch off.
Inspect for continuity between rear HO2S
terminal D (wiring harness-side) and body No Go to the next step.
GND.
Is there continuity?
(w)
Engine Diagnostics & Control
Page 32
INSPECT REAR HO2S HEATER
•
6
Inspect the rear HO2S heater.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, and corrosion).
Is there any malfunction?
INSPECT REAR HO2S HEATER CONTROL
CIRCUIT FOR OPEN CIRCUIT
8
Yes
(See REAR HEATED OXYGEN
SENSOR (HO2S) INSPECTION .)
•
7
Replace the rear HO2S, then go to Step 9.
•
•
•
(See REAR HEATED OXYGEN SENSOR
(HO2S) REMOVAL/INSTALLATION .)
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
9.
No Go to the next step.
Yes Go to the next step.
Turn the ignition switch off.
Inspect for continuity between rear HO2S
Repair or replace the wiring harness for a
terminal D (wiring harness-side) and PCM No possible open circuit, then go to the next step.
terminal 2A (wiring harness-side).
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P0038 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
9
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 3.
(See OBD-II DRIVE MODE .)
•
No Go to the next step.
Is the PENDING CODE same as the DTC
present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
10
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
(w)
Engine Diagnostics & Control
Page 33
DTC P0076
DTC P0076
VDI solenoid valve control circuit low
•
DETECTION
CONDITION
Diagnostic support note
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
The PCM monitors the VDI solenoid valve control voltage when the PCM turns
the VDI solenoid valve off. If the control voltage is low, the PCM determines that
the VDI solenoid valve control circuit voltage is low.
•
•
•
•
This is a continuous monitor (CCM).
The MIL does not illuminate.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
VDI solenoid valve malfunction
Connector or terminal malfunction
Open circuit in wiring harness between main relay terminal C and VDI solenoid
valve terminal A
Short to GND in wiring harness between main relay terminal C and VDI solenoid
valve terminal A
Open circuit in wiring harness between VDI solenoid valve terminal B and PCM
terminal 1W
Short to GND in wiring harness between VDI solenoid valve terminal B and PCM
terminal 1W
PCM malfunction
(w)
Engine Diagnostics & Control
Page 34
(w)
Engine Diagnostics & Control
Page 35
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT VDI SOLENOID VALVE
CONNECTOR FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the VDI solenoid valve
connector.
Inspect for poor connection (such as
damaged/pulled-out pins, and corrosion).
Is there any malfunction?
INSPECT VDI SOLENOID VALVE POWER
CIRCUIT FOR OPEN CIRCUIT OR SHORT TO
GND
4
•
•
•
Yes
Repair or replace the terminal, then go to Step
9.
No Go to the next step.
Yes Go to the next step.
Turn the ignition switch to the ON position
Repair or replace the wiring harness for a
(Engine off).
Measure the voltage between VDI solenoid No possible open circuit or short to GND, then go
to Step 9.
valve terminal A (wiring harness-side) and
body GND.
Is the voltage B+ ?
Repair or replace the wiring harness for a
INSPECT VDI SOLENOID VALVE CONTROL
Yes
possible short to GND, then go to Step 9.
CIRCUIT FOR SHORT TO GND
5
•
•
•
Turn the ignition switch off.
Inspect for continuity between VDI
solenoid valve terminal B (wiring harnessside) and body GND.
Is there continuity?
No Go to the next step.
(w)
Engine Diagnostics & Control
Page 36
INSPECT VDI SOLENOID VALVE
•
Inspect the VDI solenoid valve.
Yes
(See INTAKE-AIR SYSTEM HOSE
ROUTING DIAGRAM .)
(See VARIABLE DYNAMIC EFFECT
INTAKE-AIR (VDI) SOLENOID VALVE
INSPECTION .)
6
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
7
Replace the VDI solenoid valve, then go to
Step 9.
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, and corrosion).
Is there any malfunction?
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
9.
No Go to the next step.
INSPECT VDI SOLENOID VALVE CONTROL Yes Go to the next step.
CIRCUIT FOR OPEN CIRCUIT
8
•
•
•
9
Turn the ignition switch off.
Inspect for continuity between VDI
solenoid valve terminal B (wiring harnessside) and PCM terminal 1W (wiring
harness-side).
Is there continuity?
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
VERIFY TROUBLESHOOTING OF DTC P0076
Replace the PCM, then go to the next step.
COMPLETED
Yes
(See PCM REMOVAL/INSTALLATION .)
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
• Start the engine.
• Is the PENDING CODE same as the DTC
present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
10
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
(w)
Engine Diagnostics & Control
Page 37
DTC P0077
DTC P0077
VDI solenoid valve control circuit high
•
DETECTION
CONDITION
Diagnostic support note
•
•
•
•
•
POSSIBLE
CAUSE
The PCM monitors the VDI solenoid valve control voltage when the PCM turns
the VDI solenoid valve on. If the control voltage is high, the PCM determines that
the VDI solenoid valve control circuit voltage is high.
•
•
•
•
This is a continuous monitor (CCM).
The MIL does not illuminate.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
VDI solenoid valve malfunction
Connector or terminal malfunction
Short to power supply in wiring harness between VDI solenoid valve terminal B
and PCM terminal 1W
PCM malfunction
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Engine Diagnostics & Control
Page 38
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT VDI SOLENOID VALVE
CONNECTOR FOR POOR CONNECTION
3
•
•
•
•
•
•
•
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 7.
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between VDI
solenoid valve terminal B (wiring
harness-side) and body GND.
Is the voltage B+ ?
Repair or replace the wiring harness for a
Yes possible short to power supply, then go to Step
7.
No Go to the next step.
Replace the VDI solenoid valve, then go to Step
7.
INSPECT VDI SOLENOID VALVE
5
•
Turn the ignition switch off.
Disconnect the VDI solenoid valve
connector.
No Go to the next step.
Inspect for poor connection (such as
damaged/pulled-out pins, and corrosion).
Is there any malfunction?
INSPECT VDI SOLENOID VALVE
CONTROL CIRCUIT FOR SHORT TO
POWER SUPPLY
4
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Inspect the VDI solenoid valve.
Yes
(See INTAKE-AIR SYSTEM HOSE ROUTING
DIAGRAM .)
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Engine Diagnostics & Control
Page 39
(See VARIABLE DYNAMIC EFFECT
INTAKE-AIR (VDI) SOLENOID
VALVE INSPECTION .)
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
6
•
•
•
•
No Go to the next step.
Yes
Repair or replace the terminal, then go to the
next step.
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
No Go to the next step.
damaged/pulled-out pins, and corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0077 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
7
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the PENDING CODE same as the
DTC present?
No Go to the next step.
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
8
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 40
DTC P0101
DTC P0101
MAF sensor circuit range/performance problem
•
DETECTION
CONDITION
Diagnostic support note
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
MAF sensor malfunction
Eccentric shaft position sensor malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
The PCM compares the actual MAF amount with the expected MAF amount when
the engine is running.
If the throttle opening angle is more than 50 % and the MAF amount is less
than 5 g/s {0.66 lb/min} , the PCM determines that there is a MAF sensor
circuit range/performance problem.
If the ECT is more than 70 °C {158 °F} , the engine speed is less than
2,000 rpm and the MAF amount is more than 130 g/s {17.20 lb/min} (MT)
110 g/s {14.55 lb/min} (AT), the PCM determines that there is a MAF
sensor circuit range/performance problem.
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Engine Diagnostics & Control
Page 41
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins
and/or on-line repair information
availability.
Is any related repair information
available?
VERIFY CURRENT INPUT SIGNAL
STATUS: IS CONCERN INTERMITTENT
OR CONSTANT?
•
3
•
•
•
•
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Verify that the TP PID changes smoothly while
gradually opening throttle valve.
•
•
If changes smoothly, go to Step 5.
If does not change smoothly, replace the
throttle body and go to Step 5.
Yes
Connect the WDS or equivalent to
the DLC-2.
Start the engine.
Access the TP and MAF PIDs.
(See INTAKE-AIR SYSTEM
Read the MAF PID when the TP PID
REMOVAL/INSTALLATION .)
is more than 50 % .
Is the MAF PID less than 5 g/s {0.66
No Go to the next step.
lb/min} ?
Yes Go to Step 6.
VERIFY CURRENT INPUT SIGNAL
STATUS: IS CONCERN INTERMITTENT
OR CONSTANT?
•
4
•
•
•
•
•
Connect the WDS or equivalent to
the DLC-2.
Start the engine.
Access the ECT, RPM and MAF
PIDs.
Warm-up the engine until the ECT
PID is more than 70 °C {158 °F} .
Read the MAF PID when the RPM
PID is less than 2,000 rpm .
Is the MAF PID more than 130 g/s
{17.20 lb/min} (MT) 110 g/s {14.55
lb/min} (AT) ?
Intermittent concern exists.
Perform the "INTERMITTENT CONCERNS
No TROUBLESHOOTING".
(See INTERMITTENT CONCERN
TROUBLESHOOTING .)
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Engine Diagnostics & Control
Page 42
VERIFY TROUBLESHOOTING OF DTC
P0101 COMPLETED
•
•
5
•
•
•
•
Replace the PCM, then go to Step 9.
Yes
(See PCM REMOVAL/INSTALLATION .)
Make sure to reconnect all
disconnected connectors.
Clear the DTC from the PCM
memory using the WDS or
equivalent.
Start the engine.
Access the TP PID.
No Go to Step 10.
Drive the vehicle for 5 s or more
when the TP PID is more than 50 %
.
Is the PENDING CODE same as the
DTC present?
Replace the MAF/IAT sensor, then go to Step 8.
INSPECT MAF SENSOR
•
6
Inspect the MAF sensor.
(See MASS AIR FLOW (MAF)
SENSOR INSPECTION .)
•
Is there any malfunction ?
Yes (See MASS AIR FLOW (MAF)/INTAKE AIR
TEMPERATURE (IAT) SENSOR
REMOVAL/INSTALLATION .)
No Go to the next step.
Replace the eccentric shaft position sensor, then go
to the next step.
INSPECT ECCENTRIC SHAFT
POSITION SENSOR
Yes
•
7
(See ECCENTRIC SHAFT
POSITION SENSOR INSPECTION
.)
No Go to the next step.
•
8
(See ECCENTRIC SHAFT POSITION SENSOR
REMOVAL/INSTALLATION .)
Inspect the eccentric shaft position
sensor.
Is there any malfunction ?
VERIFY TROUBLESHOOTING OF DTC
P0101 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 43
•
•
•
•
•
•
•
Make sure to reconnect all
disconnected connectors.
Clear the DTC from the PCM
memory using the WDS or
equivalent.
Start the engine.
Access the ECT and RPM PIDs.
Warm-up the engine until the ECT
PID is more than 70 °C {158 °F} .
Drive the vehicle for 5 s or more
when the RPM PID is less than
2,000 rpm .
Is the PENDING CODE same as the
DTC present?
No Go to the next step.
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
9
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR
PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 44
DTC P0102
DTC P0102
MAF sensor circuit low input
•
The PCM monitors the input voltage from the MAF sensor when the engine is
running. If the input voltage is less than 0.5 V , the PCM determines that the
MAF sensor circuit input voltage is low.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
MAF sensor malfunction
Connector or terminal malfunction
Open circuit in wiring harness between main relay terminal C and MAF/IAT
sensor terminal A
Short to GND in wiring harness between main relay terminal C and MAF/IAT
sensor terminal A
Open circuit in wiring harness between MAF/IAT sensor terminal C and PCM
terminal 5N
Short to GND in wiring harness between MAF/IAT sensor terminal C and PCM
terminal 5N
PCM malfunction
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Engine Diagnostics & Control
Page 45
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Engine Diagnostics & Control
Page 46
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT MAF/IAT SENSOR CONNECTOR Yes Repair or replace the terminal, then go to Step 9.
FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the MAF/IAT sensor
connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT MAF SENSOR POWER CIRCUIT
FOR OPEN CIRCUIT OR SHORT TO GND
•
4
•
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between MAF/IAT
sensor terminal A (wiring harness-side)
and body GND.
Is the voltage B+ ?
INSPECT MAF SENSOR SIGNAL CIRCUIT
FOR SHORT TO GND
5
•
•
•
Turn the ignition switch off.
Inspect for continuity between
MAF/IAT sensor terminal C (wiring
harness-side) and body GND.
Is there any continuity?
No Go to the next step.
Yes Go to the next step.
Repair or replace the wiring harness for a
No possible open circuit or short to GND, then go to
Step 9.
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 9.
No Go to the next step.
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Engine Diagnostics & Control
Page 47
INSPECT MAF SENSOR
•
6
Inspect the MAF sensor.
(See MASS AIR FLOW (MAF)
SENSOR INSPECTION .)
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
7
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT MAF SENSOR SIGNAL CIRCUIT
FOR OPEN CIRCUIT
8
•
•
•
Turn the ignition switch off.
Inspect for continuity between
MAF/IAT sensor terminal C (wiring
harness-side) and PCM terminal 5N
(wiring harness-side).
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P0102 COMPLETED
Replace the MAF/IAT sensor, then go to Step 9.
Yes (See MASS AIR FLOW (MAF)/INTAKE AIR
TEMPERATURE (IAT) SENSOR
REMOVAL/INSTALLATION .)
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 9.
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
9
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the same DTC present?
Go to the applicable DTC inspection.
VERIFY AFTER REPAIR PROCEDURE
Yes
•
10
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 48
DTC P0103
DTC P0103
MAF sensor circuit high input
•
The PCM monitors the input voltage from the MAF sensor when the engine is
running. If the input voltage is more than 5.0 V , the PCM determines that the
MAF sensor circuit input voltage is high.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
MAF sensor malfunction
Connector or terminal malfunction
Short to power supply in wiring harness between MAF/IAT sensor terminal C and
PCM terminal 5N
Open circuit in wiring harness between MAF/IAT sensor terminal B and PCM
terminal 5U
PCM malfunction
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Engine Diagnostics & Control
Page 49
(w)
Engine Diagnostics & Control
Page 50
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT MAF/IAT SENSOR CONNECTOR Yes Repair or replace the terminal, then go to Step 8.
FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the MAF/IAT sensor
connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT MAF SENSOR SIGNAL CIRCUIT
FOR SHORT TO POWER SUPPLY
•
4
•
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between MAF/IAT
sensor terminal C (wiring harness-side)
and body GND.
Is the voltage B+ ?
INSPECT MAF SENSOR
•
5
(See MASS AIR FLOW (MAF)
SENSOR INSPECTION .)
•
6
Inspect the MAF sensor.
Is there any malfunction ?
No Go to the next step.
Yes
Repair or replace the wiring harness for a
possible short to power supply, then go to Step 8.
No Go to the next step.
Replace the MAF/IAT sensor, then go to Step 8.
Yes (See MASS AIR FLOW (MAF)/INTAKE AIR
TEMPERATURE (IAT) SENSOR
REMOVAL/INSTALLATION .)
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 8.
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Engine Diagnostics & Control
Page 51
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT MAF SENSOR GND CIRCUIT
FOR OPEN CIRCUIT
7
•
•
•
Turn the ignition switch off.
Inspect for continuity between
MAF/IAT sensor terminal B (wiring
harness-side) and PCM terminal 5U
(wiring harness-side).
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P0103 COMPLETED
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
8
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
9
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 52
DTC P0107
DTC P0107
BARO sensor circuit low input
•
The PCM monitors the input voltage from the BARO sensor when the engine is
running. If the input voltage is less than 0.2 V , the PCM determines that the
BARO sensor circuit input voltage is low.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
BARO sensor malfunction
Connector or terminal malfunction
Open circuit in wiring harness between BARO sensor terminal C and PCM
terminal 4K
Short to GND in wiring harness between BARO sensor terminal C and PCM
terminal 4K
Open circuit in wiring harness between BARO sensor terminal A and PCM
terminal 5S
Short to GND in wiring harness between BARO sensor terminal A and PCM
terminal 5S
PCM malfunction
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Engine Diagnostics & Control
Page 53
(w)
Engine Diagnostics & Control
Page 54
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT BARO SENSOR CONNECTOR
FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the BARO sensor connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT BARO SENSOR CIRCUIT FOR
SHORT TO GND
•
•
4
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
BARO sensor terminal C (wiring
harness-side) and body GND
BARO sensor terminal A (wiring
harness-side) and body GND
Is there any continuity?
Yes
5
Inspect the BARO sensor.
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
8.
No Go to the next step.
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 8.
No Go to the next step.
Replace the BARO sensor, then go to Step 8.
INSPECT BARO SENSOR
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
(See BAROMETRIC PRESSURE (BARO)
SENSOR REMOVAL/INSTALLATION .)
(See BAROMETRIC PRESSURE
(BARO) SENSOR INSPECTION .)
•
Is there any malfunction ?
No Go to the next step.
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Engine Diagnostics & Control
Page 55
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
6
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT BARO SENSOR CIRCUIT FOR
OPEN CIRCUIT
•
•
7
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
BARO sensor terminal C (wiring
harness-side) and PCM terminal
4K (wiring harness-side)
BARO sensor terminal A (wiring
harness-side) and PCM terminal
5S (wiring harness-side)
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P0107 COMPLETED
Yes
Repair or replace the terminal, then go to Step
8.
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
8
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the same DTC present?
No Go to the next step.
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
9
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 56
DTC P0108
DTC P0108
BARO sensor circuit high input
•
The PCM monitors the input voltage from the BARO sensor when the engine is
running. If the input voltage is more than 4.8 V , the PCM determines that the
BARO sensor circuit input voltage is high.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
BARO sensor malfunction
Connector or terminal malfunction
Short to power supply in wiring harness between BARO sensor terminal A and
PCM terminal 5S
Open circuit in wiring harness between BARO sensor terminal B and PCM
terminal 4U
PCM malfunction
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Engine Diagnostics & Control
Page 57
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Engine Diagnostics & Control
Page 58
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT BARO SENSOR CONNECTOR FOR
POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the BARO sensor connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT BARO SENSOR SIGNAL CIRCUIT
FOR SHORT TO POWER SUPPLY
•
4
•
•
Yes
No Go to the next step.
Repair or replace the wiring harness for a
Yes possible short to power supply, then go to Step
8.
Turn the ignition switch to the ON position
(Engine off).
Measure the voltage between BARO sensor
terminal A (wiring harness-side) and body No Go to the next step.
GND.
Is the voltage B+ ?
Replace the BARO sensor, then go to Step 8.
INSPECT BARO SENSOR
•
5
Inspect the BARO sensor.
Yes
(See BAROMETRIC PRESSURE (BARO)
SENSOR REMOVAL/INSTALLATION .)
(See BAROMETRIC PRESSURE (BARO)
SENSOR INSPECTION .)
•
6
Repair or replace the terminal, then go to Step
8.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
8.
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Engine Diagnostics & Control
Page 59
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT BARO SENSOR GND CIRCUIT FOR
OPEN CIRCUIT
7
•
•
•
8
No Go to the next step.
Yes Go to the next step.
Turn the ignition switch off.
Inspect for continuity between BARO
Repair or replace the wiring harness for a
sensor terminal B (wiring harness-side) and No possible open circuit, then go to the next step.
PCM terminal 4U (wiring harness-side).
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC P0108
Replace the PCM, then go to the next step.
COMPLETED
Yes
(See PCM REMOVAL/INSTALLATION .)
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
• Start the engine.
• Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
9
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 60
DTC P0111
DTC P0111
IAT sensor circuit range/performance problem
•
The PCM compares the IAT with the ECT when the engine is running. If the IAT
is higher than the ECT by 40 °C {104 °F} , the PCM determines that there is an
IAT sensor circuit range/performance problem.
Diagnostic support note
DETECTION
CONDITION
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
IAT sensor malfunction
Connector or terminal malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 61
Notes:
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Engine Diagnostics & Control
Page 62
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS Yes Go to the next step.
BEEN RECORDED
1
•
Has FREEZE FRAME DATA
been recorded?
No
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
Perform repair or diagnosis according to the available
repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
Yes
2
•
•
Verify related Service Bulletins
and/or on-line repair information
availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE
OR STORED DTC
•
If the vehicle is not repaired, go to the next step.
No Go to the next step.
Go to the appropriate DTC inspection.
Yes
(See DTC TABLE .)
3
•
•
•
Turn the ignition switch off, then
to the ON position (Engine off).
Verify the related PENDING
CODE or stored DTCs.
Are other DTCs present?
INSPECT MAF/IAT SENSOR
CONNECTOR FOR POOR
CONNECTION
4
•
•
•
•
Turn the ignition switch off.
Disconnect the MAF/IAT sensor
connector.
Inspect for poor connection (such
as damaged/pulled-out pins,
corrosion).
Is there any malfunction?
INSPECT IAT SENSOR
5
•
Inspect the IAT sensor.
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 7.
No Go to the next step.
Replace the MAF/IAT sensor, then go to Step 7.
Yes (See MASS AIR FLOW (MAF)/INTAKE AIR
TEMPERATURE (IAT) SENSOR
REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 63
(See INTAKE AIR
TEMPERATURE (IAT)
SENSOR INSPECTION .)
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR
POOR CONNECTION
6
•
•
•
•
No Go to the next step.
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such
as damaged/pulled-out pins,
corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF
DTC P0111 COMPLETED
Yes Repair or replace the terminal, then go to the next step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
7
•
•
•
Make sure to reconnect all
disconnected connectors.
Clear the DTC from the PCM
memory using the WDS or
equivalent.
Start the engine and warm it up
completely.
Is the PENDING CODE same as
the DTC present?
VERIFY AFTER REPAIR
PROCEDURE
No Go to the next step.
Go to the applicable DTC inspection.
Yes
(See DTC TABLE .)
•
8
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR
PROCEDURE .)
•
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 64
DTC P0112
DTC P0112
IAT sensor circuit low input
•
The PCM monitors the input voltage from the IAT sensor when the engine is
running. If the input voltage is less than 0.1 V , the PCM determines that the IAT
sensor circuit input voltage is low.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
IAT sensor malfunction
Connector or terminal malfunction
Short to GND in wiring harness between MAF/IAT sensor terminal D and PCM
terminal 5K
PCM malfunction
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Engine Diagnostics & Control
Page 65
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Engine Diagnostics & Control
Page 66
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins
and/or on-line repair information
availability.
Is any related repair information
available?
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 7.
INSPECT MAF/IAT SENSOR
CONNECTOR FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the MAF/IAT sensor
connector.
No Go to the next step.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT IAT SENSOR SIGNAL
CIRCUIT FOR SHORT TO GND
4
•
•
•
Turn the ignition switch off.
Inspect for continuity between
MAF/IAT sensor terminal D (wiring
harness-side) and body GND.
Is there continuity?
INSPECT IAT SENSOR
•
Inspect the IAT sensor.
(See INTAKE AIR
TEMPERATURE (IAT) SENSOR
INSPECTION .)
5
•
Is there any malfunction ?
Yes
Repair or replace the wiring harness for a possible
short to GND, then go to Step 7.
No Go to the next step.
Replace the MAF/IAT sensor, then go to Step 7.
Yes (See MASS AIR FLOW (MAF)/INTAKE AIR
TEMPERATURE (IAT) SENSOR
REMOVAL/INSTALLATION .)
No Go to the next step.
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Engine Diagnostics & Control
Page 67
INSPECT PCM CONNECTOR FOR
POOR CONNECTION
6
•
•
•
•
Yes
Repair or replace the terminal, then go to the next
step.
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as No Go to the next step.
damaged/pulled-out pins, corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0112 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
7
•
•
•
Make sure to reconnect all
disconnected connectors.
Clear the DTC from the PCM
memory using the WDS or
equivalent.
Start the engine.
Is the same DTC present?
No Go to the next step.
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
8
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR
PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 68
DTC P0113
DTC P0113
IAT sensor circuit high input
•
The PCM monitors the input voltage from the IAT sensor when the engine is
running. If the input voltage is more than 4.8 V , the PCM determines that the
IAT sensor circuit input voltage is high.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
IAT sensor malfunction
Connector or terminal malfunction
Open circuit in wiring harness between MAF/IAT sensor terminal D and PCM
terminal 5K
Short to power supply in wiring harness between MAF/IAT sensor terminal D and
PCM terminal 5K
Open circuit in wiring harness between MAF/IAT sensor terminal E and PCM
terminal 4U
PCM malfunction
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Engine Diagnostics & Control
Page 69
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Engine Diagnostics & Control
Page 70
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT MAF/IAT SENSOR
CONNECTOR FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the MAF/IAT sensor
connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 8.
No Go to the next step.
Repair or replace the wiring harness for a possible
INSPECT IAT SENSOR SIGNAL CIRCUIT
Yes
short to power supply, then go to Step 8.
FOR SHORT TO POWER SUPPLY
•
4
•
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between
MAF/IAT sensor terminal D (wiring
harness-side) and body GND.
Is the voltage B+ ?
INSPECT IAT SENSOR
6
Replace the MAF/IAT sensor, then go to Step 8.
Yes (See MASS AIR FLOW (MAF)/INTAKE AIR
TEMPERATURE (IAT) SENSOR
REMOVAL/INSTALLATION .)
(See INTAKE AIR TEMPERATURE
(IAT) SENSOR INSPECTION .)
•
Inspect the IAT sensor.
•
Is there any malfunction ?
5
No Go to the next step.
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 8.
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Engine Diagnostics & Control
Page 71
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT IAT SENSOR CIRCUIT FOR
OPEN CIRCUIT
•
•
7
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
MAF/IAT sensor terminal D
(wiring harness-side) and
PCM terminal 5K (wiring
harness-side)
MAF/IAT sensor terminal E
(wiring harness-side) and
PCM terminal 4U (wiring
harness-side)
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P0113 COMPLETED
•
8
•
•
•
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a possible
open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
Make sure to reconnect all
disconnected connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
9
Perform the "AFTER REPAIR
PROCEDURE".
(See DTC TABLE .)
(See AFTER REPAIR PROCEDURE
.)
No DTC troubleshooting completed.
•
Are any DTCs present?
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Engine Diagnostics & Control
Page 72
DTC P0117
DTC P0117
ECT sensor circuit low input
•
The PCM monitors the input voltage from the ECT sensor when the engine is
running. If the input voltage is less than 0.2 V , the PCM determines that the ECT
sensor circuit input voltage is low.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
ECT sensor malfunction
Connector or terminal malfunction
Short to GND in wiring harness between ECT sensor terminal A and PCM
terminal 2K
PCM malfunction
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Engine Diagnostics & Control
Page 73
Notes:
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Engine Diagnostics & Control
Page 74
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT ECT SENSOR CONNECTOR
FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the ECT sensor connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 7.
No Go to the next step.
Repair or replace the wiring harness for a possible
INSPECT ECT SENSOR SIGNAL CIRCUIT
Yes
short to GND, then go to Step 7.
FOR SHORT TO GND
4
•
•
•
•
Turn the ignition switch off.
Disconnect the ECT sensor connector.
Inspect for continuity between ECT
sensor terminal A (wiring harness-side) No Go to the next step.
and body GND.
Is there continuity?
INSPECT ECT SENSOR
•
Inspect the ECT sensor.
(See ENGINE COOLANT
TEMPERATURE (ECT) SENSOR
INSPECTION .)
5
•
Replace the ECT sensor, then go to Step 7.
Yes
(See ENGINE COOLANT TEMPERATURE
(ECT) SENSOR REMOVAL/INSTALLATION .)
No Go to the next step.
Is there any malfunction ?
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Engine Diagnostics & Control
Page 75
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
6
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0117 COMPLETED
Yes
Repair or replace the terminal, then go to the next
step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
7
•
•
•
Make sure to reconnect all
disconnected connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the same DTC present?
No Go to the next step.
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
8
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE
.)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 76
DTC P0118
DTC P0118
ECT sensor circuit high input
•
The PCM monitors the input voltage from the ECT sensor when the engine is
running. If the input voltage is more than 4.8 V , the PCM determines that the
ECT sensor circuit input voltage is high.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
ECT sensor malfunction
Connector or terminal malfunction
Open circuit in wiring harness between ECT sensor terminal A and PCM terminal
2K
Short to power supply in wiring harness between ECT sensor terminal A and
PCM terminal 2K
Open circuit in wiring harness between ECT sensor terminal B and PCM terminal
1U
PCM malfunction
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Engine Diagnostics & Control
Page 77
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Engine Diagnostics & Control
Page 78
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
INSPECT ECT SENSOR CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 8.
POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the ECT sensor connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT ECT SENSOR SIGNAL CIRCUIT
FOR SHORT TO POWER SUPPLY
•
4
•
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between ECT
sensor terminal A (wiring harness-side)
and body GND.
Is the voltage B+ ?
No Go to the next step.
Yes
No Go to the next step.
INSPECT ECT SENSOR
•
(See ENGINE COOLANT
TEMPERATURE (ECT) SENSOR
INSPECTION .)
5
•
6
Inspect the ECT sensor.
Repair or replace the wiring harness for a
possible short to power supply, then go to Step 8.
Replace the ECT sensor, then go to Step 8.
Yes
(See ENGINE COOLANT TEMPERATURE
(ECT) SENSOR REMOVAL/INSTALLATION .)
No Go to the next step.
Is there any malfunction ?
Yes Repair or replace the terminal, then go to Step 8.
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Engine Diagnostics & Control
Page 79
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT ECT SENSOR CIRCUIT FOR
OPEN CIRCUIT
•
•
7
•
8
•
•
•
Yes Go to the next step.
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
ECT sensor terminal A (wiring
harness-side) and PCM terminal No Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
2K (wiring harness-side)
ECT sensor terminal B (wiring
harness-side) and PCM terminal
1U (wiring harness-side)
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P0118 COMPLETED
•
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
9
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 80
DTC P0122
DTC P0122
TP sensor No.1 circuit low input
•
The PCM monitors the input voltage from the TP sensor No.1 when the engine is
running. If the input voltage is less than 0.3 V , the PCM determines that the TP
sensor No.1 circuit input voltage is low.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
TP sensor No.1 malfunction
Connector or terminal malfunction
Open circuit in wiring harness between throttle body terminal E and PCM
terminal 1Q
Short to GND in wiring harness between throttle body terminal E and PCM
terminal 1Q
Open circuit in wiring harness between throttle body terminal F and PCM terminal
1J
Short to GND in wiring harness between throttle body terminal F and PCM
terminal 1J
PCM malfunction
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Engine Diagnostics & Control
Page 81
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Engine Diagnostics & Control
Page 82
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT THROTTLE BODY CONNECTOR
FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the throttle body connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT TP SENSOR NO.1 CIRCUIT FOR
SHORT TO GND
•
•
4
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Throttle body terminal E (wiring
harness-side) and body GND
Throttle body terminal F (wiring
harness-side) and body GND
Is there any continuity?
Yes
5
Inspect the TP sensor No.1.
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
8.
No Go to the next step.
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 8.
No Go to the next step.
Replace the throttle body, then go to Step 8.
INSPECT TP SENSOR NO.1
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
(See THROTTLE POSITION (TP)
SENSOR INSPECTION .)
•
Is there any malfunction ?
No Go to the next step.
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Engine Diagnostics & Control
Page 83
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
6
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT TP SENSOR NO.1 CIRCUIT FOR
OPEN CIRCUIT
•
•
7
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Throttle body terminal E (wiring
harness-side) and PCM terminal
1Q (wiring harness-side)
Throttle body terminal F (wiring
harness-side) and PCM terminal
1J (wiring harness-side)
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P0122 COMPLETED
Yes
Repair or replace the terminal, then go to Step
8.
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
8
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the same DTC present?
No Go to the next step.
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
9
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 84
DTC P0123
DTC P0123
TP sensor No.1 circuit high input
•
The PCM monitors the input voltage from the TP sensor No.1 when the engine is
running. If the input voltage is more than 4.8 V , the PCM determines that the TP
sensor No.1 circuit input voltage is high.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
TP sensor No.1 malfunction
Connector or terminal malfunction
Short to power supply in wiring harness between throttle body terminal F and
PCM terminal 1J
Open circuit in wiring harness between throttle body terminal C and PCM
terminal 2F
PCM malfunction
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Engine Diagnostics & Control
Page 85
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Engine Diagnostics & Control
Page 86
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT THROTTLE BODY CONNECTOR
FOR POOR CONNECTION
3
•
•
•
•
4
Turn the ignition switch off.
Disconnect the throttle body connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
Yes
No Go to the next step.
INSPECT TP SENSOR NO.1 SIGNAL CIRCUIT
Repair or replace the wiring harness for a
FOR SHORT TO POWER SUPPLY
Yes possible short to power supply, then go to Step
8.
• Turn the ignition switch to the ON position
(Engine off).
• Measure the voltage between throttle body
terminal F (wiring harness-side) and body No Go to the next step.
GND.
• Is the voltage B+ ?
Replace the throttle body, then go to Step 8.
INSPECT TP SENSOR NO.1
•
5
Inspect the TP sensor No.1.
Yes
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
(See THROTTLE POSITION (TP)
SENSOR INSPECTION .)
•
6
Repair or replace the terminal, then go to Step
8.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
8.
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Engine Diagnostics & Control
Page 87
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT TP SENSOR NO.1 GND CIRCUIT
FOR OPEN CIRCUIT
7
•
•
•
8
No Go to the next step.
Yes Go to the next step.
Turn the ignition switch off.
Inspect for continuity between throttle body
Repair or replace the wiring harness for a
terminal C (wiring harness-side) and PCM No possible open circuit, then go to the next step.
terminal 2F (wiring harness-side).
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC P0123
Replace the PCM, then go to the next step.
COMPLETED
Yes
(See PCM REMOVAL/INSTALLATION .)
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
• Start the engine.
• Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
9
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 88
DTC P0125
DTC P0125
Insufficient coolant temperature for closed loop fuel control
•
The PCM monitors the ECT after cold engine start. If the ECT does not reach the
specification in a certain period, the PCM determines that the coolant temperature
for closed loop fuel control is insufficient.
Diagnostic support note
DETECTION
CONDITION
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
ECT sensor malfunction
MAF sensor malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 89
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins
and/or on-line repair information
availability.
Is any related repair information
available?
VERIFY CURRENT INPUT SIGNAL
STATUS: IS CONCERN INTERMITTENT
OR CONSTANT?
•
3
•
•
•
Connect the WDS or equivalent to
the DLC-2.
Start the engine and warm it up
completely.
Access the ECT PID.
Is the ECT PID more than 70 °C
{158 °F} ?
Yes
Inspect the ECT sensor.
(See ENGINE COOLANT
TEMPERATURE (ECT) SENSOR
INSPECTION .)
4
•
•
If the vehicle is not repaired, go to the next
step.
Intermittent concern exists.
Perform the "INTERMITTENT CONCERNS
Yes TROUBLESHOOTING".
(See INTERMITTENT CONCERN
TROUBLESHOOTING .)
No Go to the next step.
Replace the ECT sensor, then go to Step 6.
Yes
(See ENGINE COOLANT TEMPERATURE (ECT)
SENSOR REMOVAL/INSTALLATION .)
No Go to the next step.
Is there any malfunction ?
Replace the MAF/IAT sensor, then go to the next
step.
INSPECT MAF SENSOR
5
•
No Go to the next step.
INSPECT ECT SENSOR
•
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
Inspect the MAF sensor.
(See MASS AIR FLOW (MAF)
SENSOR INSPECTION )
Yes
(See MASS AIR FLOW (MAF)/INTAKE AIR
TEMPERATURE (IAT) SENSOR
REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 90
SENSOR INSPECTION .)
•
Is there any malfunction ?
VERIFY TROUBLESHOOTING OF DTC
P0125 COMPLETED
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
6
•
•
•
•
Make sure to reconnect all
disconnected connectors.
Clear the DTC from the PCM
memory using the WDS or
equivalent.
Access the ECT PID.
Wait until the ECT PID less than 20 No Go to the next step.
°C {68 °F} .
Start the engine and warm it up
completely.
Is the PENDING CODE same as the
DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
7
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR
PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 91
DTC P0126, P0128
DTC P0126
Insufficient coolant temperature for stable operation
DTC P0128
Coolant thermostat problem
DTC P0126
•
The PCM monitors the ECT after the engine start for a certain period. If the the
ECT never exceeds 71 °C {160 °F} when the following conditions are met, the
PCM determines that the coolant thermostat is stuck open.
MONITORING CONDITIONS
Soak time: more than 6 hour
IAT: more than −10 °C {14 °F}
Vehicle speed: more than 10 km/h {6.2 mph}
LOAD: more than 21.9 %
DTC P0128
•
DETECTION
CONDITION
The PCM calculates the radiator heat radiation ratio while the following conditions
are met. If the calculated value exceeds the threshold, the PCM determines that the
coolant thermostat is stuck open.
MONITORING CONDITIONS
Soak time: more than 6 hour
IAT: more than −10 °C {14 °F}
ECT at engine start: less than 35 °C {95 °F}
Vehicle speed: more than 40 km/h {24.9 mph}
Diagnostic support note
•
•
This is a continuous monitor (Thermostat).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
Coolant thermostat malfunction
VSS malfunction
IAT sensor malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 92
•
•
ECT sensor malfunction
PCM malfunction
Notes:
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Engine Diagnostics & Control
Page 93
Diagnostic procedure
STEP INSPECTION
1
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
•
Has FREEZE FRAME DATA been recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to
the available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or on-line
repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on
the repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to
the next step.
No Go to the next step.
VERIFY FOR OTHER STORED DTC
Go to the appropriate DTC inspection.
Yes
3
•
•
•
Turn the ignition switch off, then to the ON
position (Engine off).
Verify for the other stored DTCs.
Are other DTCs present?
VERIFY CURRENT INPUT SIGNAL STATUS OF
VSS
4
•
•
•
•
Connect the WDS or equivalent to the DLC-2.
Start the engine.
Access the VSS PID.
Inspect the VSS PID.
(See DTC TABLE .)
No Go to the next step.
Yes Go to the next step.
No
Then go to Step 8.
(See PCM INSPECTION .)
•
Is the PID normal?
Replace the MAF/IAT sensor, then go to
Step 8.
INSPECT IAT SENSOR
•
5
Inspect the IAT sensor.
(See INTAKE AIR TEMPERATURE (IAT)
SENSOR INSPECTION .)
•
Inspect the malfunctioning part according
to the inspection results.
Is there any malfunction ?
Yes
(See MASS AIR FLOW (MAF)/INTAKE
AIR TEMPERATURE (IAT) SENSOR
REMOVAL/INSTALLATION .)
No Go to the next step.
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Engine Diagnostics & Control
Page 94
INSPECT ECT SENSOR
•
6
Inspect the ECT sensor.
Replace the ECT sensor, then go to Step
8.
Yes
(See ENGINE COOLANT TEMPERATURE
(ECT) SENSOR INSPECTION .)
•
Is there any malfunction ?
No Go to the next step.
INSPECT COOLANT THERMOSTAT
•
7
Inspect the coolant thermostat.
Replace the coolant thermostat, then go to
the next step.
Yes
(See THERMOSTAT
REMOVAL/INSTALLATION .)
(See THERMOSTAT INSPECTION .)
•
Is there any malfunction ?
VERIFY MONITORING CONDITION FOR
REPAIR VERIFICATION
(See ENGINE COOLANT
TEMPERATURE (ECT) SENSOR
REMOVAL/INSTALLATION .)
No Go to the next step.
For DTC P0126: go to the next step.
Yes
For DTC P0128: go to Step 8.
•
•
8
•
•
•
•
9
Soak the vehicle in a place that is at a
temperature of approx. 25 °C {77 °F} for more
than 6 hours .
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory using
Inspect the malfunctioning part according
the WDS or equivalent.
to
inspection the results.
Access the ECT and IAT PIDs.
No
Verify that each PID is within following
Then repeat this step.
specifications.
IAT: more than −10 °C {14 °F}
ECT: less than 35 °C {95 °F} (for
P0128 only)
Are the ECT and IAT PIDs normal?
Yes Go to Step 9.
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Engine Diagnostics & Control
Page 95
VERIFY TROUBLESHOOTING OF DTC P0126
COMPLETED
•
•
•
•
•
Connect the WDS or equivalent to the DLC-2.
Start the engine.
Verify that the E/L and A/C are off.
Access the DIAGNOSTIC MONITORING
TEST RESULTS.
Monitor the TEST #10:E1:81 (ECT).
NOTE:
This test requires actual driving. Chassis
dynomometer cannot be used for this
Replace the PCM, then go to Step 9.
test.
No
• During the test drive, constant speed
(See PCM REMOVAL/INSTALLATION
should be maintained, although 2 or 3
.)
stops during every 5 min of driving time
(e.g. for traffic signals) is acceptable.
Stop-and-go (e.g. in case of traffic
congestion) is not acceptable during the
test period.
• Test period depends on ECT at the
engine start. (e.g. if ECT is −10 °C {14
°F} , monitoring period is 38 min and
ECT is 30 °C {86 °F} , monitoring
period is 8 min )
Verify TEST #10:E1:81 (ECT) value.
Is value above minimum value?
•
•
•
10
Yes Go to the next step.
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Engine Diagnostics & Control
Page 96
VERIFY TROUBLESHOOTING OF DTC P0128
COMPLETED
•
•
•
•
•
Connect the WDS or equivalent to the DLC-2.
Start the engine.
Verify that the E/L and A/C are off.
Access the DIAGNOSTIC MONITORING
TEST RESULTS.
Monitor the TEST #10:E1:80 (heat radiation
ratio) or #10:E1:81 (ECT).
NOTE:
Replace the PCM, then go to the next
step.
This test requires actual driving. Chassis No
roller cannot be used for this test.
(See PCM REMOVAL/INSTALLATION
• During the test drive, constant speed
.)
should be maintained, although 2 or 3
stops (e.g. for traffic signals) is
acceptable. Stop-and-go (e.g. in case of
traffic congestion) is not acceptable
during the test period.
Verify TEST #10:E1:80 (heat radiation ratio) or
#10:E1:81 (ECT) value.
Are value of TEST#10:E1:80 (heat radiation
ratio) below maximum value and value of
TEST#10:E1:81 (ECT) above minimum value?
•
•
•
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
11
Perform the "AFTER REPAIR PROCEDURE".
(See DTC TABLE .)
(See AFTER REPAIR PROCEDURE .)
•
Are any DTCs present?
No DTC troubleshooting completed.
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Engine Diagnostics & Control
Page 97
DTC P0130
DTC P0130
Front HO2S circuit problem
•
The PCM monitors the front HO2S impedance when under the front HO2S heater
control. If the impedance is more than 500 ohms , the PCM determines that there
is a front HO2S circuit problem.
Diagnostic support note
DETECTION
CONDITION
•
•
This is an intermittent monitor (HO2S).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
Front HO2S malfunction
Connector or terminal malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 98
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT FRONT HO2S CONNECTOR
FOR POOR CONNECTION
3
•
•
•
•
Yes
4
Yes Repair or replace the terminal, then go to Step 6.
Turn the ignition switch off.
Disconnect the front HO2S connector.
No Go to the next step.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
Inspect the front HO2S.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
•
•
•
•
6
If the vehicle is not repaired, go to the next
step.
Replace the front HO2S, then go to Step 6.
Yes
(See FRONT HEATED OXYGEN SENSOR
(HO2S) REMOVAL/INSTALLATION .)
(See FRONT HEATED OXYGEN
SENSOR (HO2S) INSPECTION .)
•
5
•
No Go to the next step.
INSPECT FRONT HO2S
•
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0130 COMPLETED
No Go to the next step.
Yes
Repair or replace the terminal, then go to the next
step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 99
•
•
•
Make sure to reconnect all
disconnected connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 3.
No Go to the next step.
(See OBD-II DRIVE MODE .)
•
Is the PENDING CODE same as the
DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
7
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE
.)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 100
DTC P0131
DTC P0131
Front HO2S circuit low voltage
•
The PCM monitors the input voltage from the front HO2S and the front HO2S
output current when the engine is running. If the input voltage is less than 1.8 V or
the output current is less than -5 mA , the PCM determines that the front HO2S
circuit voltage is low.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is an intermittent monitor (HO2S).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Front HO2S malfunction
Connector or terminal malfunction
Open circuit in wiring harness between front HO2S terminal A and PCM terminal
2B
Short to GND in wiring harness between front HO2S terminal A and PCM terminal
2B
Open circuit in wiring harness between front HO2S terminal B and PCM terminal
2C
Short to GND in wiring harness between front HO2S terminal B and PCM terminal
2C
PCM malfunction
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Engine Diagnostics & Control
Page 101
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Engine Diagnostics & Control
Page 102
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT FRONT HO2S CONNECTOR FOR
POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the front HO2S connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT FRONT HO2S CIRCUIT FOR
SHORT TO GND
•
•
4
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Front HO2S terminal A (wiring
harness-side) and body GND
Front HO2S terminal B (wiring
harness-side) and body GND
Is there continuity?
Yes
5
Inspect the front HO2S.
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
8.
No Go to the next step.
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 8.
No Go to the next step.
Replace the front HO2S, then go to Step 8.
INSPECT FRONT HO2S
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
(See FRONT HEATED OXYGEN SENSOR
(HO2S) REMOVAL/INSTALLATION .)
(See FRONT HEATED OXYGEN
SENSOR (HO2S) INSPECTION .)
•
Is there any malfunction ?
No Go to the next step.
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Engine Diagnostics & Control
Page 103
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
6
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT FRONT HO2S CIRCUIT FOR
OPEN CIRCUIT
•
•
7
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Front HO2S terminal A (wiring
harness-side) and PCM terminal
2B (wiring harness-side)
Front HO2S terminal B (wiring
harness-side) and PCM terminal
2C (wiring harness-side)
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P0131 COMPLETED
Yes
Repair or replace the terminal, then go to Step
8.
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
8
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 3.
(See OBD-II DRIVE MODE .)
•
No Go to the next step.
Is the PENDING CODE same as the
DTC present?
Go to the applicable DTC inspection.
VERIFY AFTER REPAIR PROCEDURE
Yes
•
9
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 104
DTC P0132
DTC P0132
Front HO2S circuit high voltage
•
The PCM monitors the input voltage from the front HO2S and the front HO2S
output current when the engine is running. If the input voltage is more than 3.8 V
or the output current is more than 5 mA , the PCM determines that the front HO2S
circuit voltage is high.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
•
This is an intermittent monitor (HO2S).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Front HO2S malfunction
Connector or terminal malfunction
Short to power supply in wiring harness between front HO2S terminal A and PCM
terminal 2B
Short to power supply in wiring harness between front HO2S terminal B and PCM
terminal 2C
PCM malfunction
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Engine Diagnostics & Control
Page 105
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Engine Diagnostics & Control
Page 106
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins
and/or on-line repair information
availability.
Is any related repair information
available?
INSPECT FRONT HO2S CONNECTOR
FOR POOR CONNECTION
3
•
•
•
•
•
4
•
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 7.
Turn the ignition switch off.
Disconnect the front HO2S connector.
Inspect for poor connection (such as No Go to the next step.
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT FRONT HO2S CIRCUIT FOR
SHORT TO POWER SUPPLY
•
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between the
following circuits:
Front HO2S terminal A
(wiring harness-side) and
body GND
Front HO2S terminal B
(wiring harness-side) and
body GND
Is the voltage B+ ?
Yes
Repair or replace the wiring harness for a possible
short to power supply, then go to Step 7.
No Go to the next step.
Replace the front HO2S, then go to Step 7.
5
INSPECT FRONT HO2S
Yes
(See FRONT HEATED OXYGEN SENSOR
(HO2S) REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 107
•
Inspect the front HO2S.
(See FRONT HEATED OXYGEN
SENSOR (HO2S) INSPECTION .)
•
No Go to the next step.
Is there any malfunction ?
Repair or replace the terminal, then go to the next
INSPECT PCM CONNECTOR FOR POOR
Yes
step.
CONNECTION
6
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0132 COMPLETED
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
7
•
Make sure to reconnect all
disconnected connectors.
Clear the DTC from the PCM
memory using the WDS or
equivalent.
Perform the DRIVE MODE 1 and 3.
No Go to the next step.
(See OBD-II DRIVE MODE .)
•
Is the PENDING CODE same as the
DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
8
Perform the "AFTER REPAIR
PROCEDURE".
(See DTC TABLE .)
(See AFTER REPAIR PROCEDURE
.)
No DTC troubleshooting completed.
•
Are any DTCs present?
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Engine Diagnostics & Control
Page 108
DTC P0133
DTC P0133
Front HO2S circuit slow response
•
The PCM monitors the front HO2S output current and short term fuel trim
(SHRTFT) when the following conditions are met. If the output current response is
lower than that expected from the fuel trim, the PCM determines that the front
HO2S circuit response is slow.
MONITORING CONDITION
DETECTION
CONDITION
Front HO2S heater monitor: Completed
Fuel system loop status: Closed loop fuel control
Engine speed: 2,000
3,500 rpm
LOAD: 30.0
50.0 %
Diagnostic support note
•
•
This is an intermittent monitor (HO2S).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
•
•
•
•
•
•
•
•
Purge solenoid valve malfunction
Looseness of front HO2S
Leakage exhaust gas
Front HO2S malfunction
Fuel line pressure malfunction
Leakage fuel
Fuel pump unit malfunction
AIR system malfunction
Leakage engine coolant
TP sensor malfunction
Eccentric shaft position sensor malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 109
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE OR
STORED DTC
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Go to the DTC P0443 inspection.
Yes
(See DTC P0443 .)
3
•
•
•
Turn the ignition switch off, then to the
ON position (Engine off).
Verify the related PENDING CODE or
stored DTCs.
Is the DTC P0443 also present?
IDENTIFY TRIGGER DTC FOR FREEZE
FRAME DATA
4
5
•
Is DTC P0133 on FREEZE FRAME
DATA?
No Go to the next step.
Yes Go to the next step.
No
Go to the FREEZE FRAME DATA DTC
inspection.
(See DTC TABLE .)
Yes Go to Step 8.
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Engine Diagnostics & Control
Page 110
VERIFY CURRENT INPUT SIGNAL
STATUS OF FRONT HO2S
•
•
•
•
•
6
Connect the WDS or equivalent to the
DLC-2.
Start the engine and warm it up
completely.
Access the O2S11 PID.
Read the O2S11 PID under following
accelerator pedal conditions (in PARK or No Go to the next step.
NEUTRAL).
Less than 1 mA when the
accelerator pedal is suddenly
depressed (rich condition).
More than 1 mA just after
release of accelerator pedal (lean
condition).
Is the PID normal?
INSPECT INSTALLATION OF FRONT HO2S Yes Go to the next step.
Tighten the front HO2S, then go to Step 14.
• Inspect the front HO2S for looseness.
No
• Is it normal?
(See FRONT HEATED OXYGEN SENSOR
(HO2S) REMOVAL/INSTALLATION .)
INSPECT EXHAUST SYSTEM FOR
EXHAUST GAS LEAKAGE
7
•
•
Visually inspect exhaust gas leakage in
the exhaust system.
Is there exhaust gas leakage?
Yes
Repair or replace the malfunctioning part, then
go to Step 16.
Replace the front HO2S, then go to Step 16.
No
INSPECT LONG TERM FUEL TRIM
(See FRONT HEATED OXYGEN SENSOR
(HO2S) REMOVAL/INSTALLATION .)
Engine is driven under rich condition.
Yes
•
8
•
•
•
9
Connect the WDS or equivalent to the
DLC-2.
Access the LONGFT1 PID.
Compare the LONGFT1 PID with
recorded FREEZE FRAME DATA at
Step 1.
Is the LONGFT1 PID below FREEZE
FRAME DATA?
INSPECT FUEL LINE PRESSURE
(EXCESSIVE FUEL LINE PRESSURE)
Go to the next step.
Engine is driven under lean condition.
No
Go to Step 10.
Yes
Repair or replace the malfunctioning part
according to the inspection results.
Then go to the Step 16.
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Engine Diagnostics & Control
Page 111
•
Perform the "FUEL LINE PRESSURE
INSPECTION".
(See FUEL LINE PRESSURE
INSPECTION .)
•
Is there any malfunction ?
INSPECT FUEL LINE PRESSURE (LOW
FUEL LINE PRESSURE)
•
10
•
•
No Go to step 12.
Is there any malfunction ?
INSPECT FUEL SYSTEM FOR FUEL
LEAKAGE
11
Yes Go to the next step.
Perform the "FUEL LINE PRESSURE
INSPECTION".
(See FUEL LINE PRESSURE
INSPECTION .)
•
No Go to the next step.
Visually inspect fuel leakage in the fuel
system.
Is there fuel leakage?
Yes
Replace the fuel pump unit, then go to Step 16.
No
INSPECT AIR SYSTEM OPERATION
•
12
Perform the "AIR System Inspection".
Repair or replace the malfunctioning part, then
go to Step 16.
Yes
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION .)
Repair or replace the malfunctioning part
according to the inspection results.
Then go to Step 16.
(See Secondary Air Injection (AIR)
System Inspection .)
•
Is there any malfunction?
INSPECT ENGINE COOLANT PASSAGE
FOR ENGINE COOLANT LEAKAGE
•
13
Perform the "ENGINE COOLANT
LEAKAGE INSPECTION".
(See ENGINE COOLANT LEAKAGE
INSPECTION .)
•
No Go to the next step.
Yes
Repair or replace the malfunctioning part
according to the inspection results.
Then go to Step 16.
No Go to the next step.
Is there any malfunction?
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Engine Diagnostics & Control
Page 112
INSPECT TP SENSOR
•
14
Inspect the TP sensor.
Replace the throttle body, then go to Step 16.
Yes
(See THROTTLE POSITION (TP)
SENSOR INSPECTION .)
•
Is there any malfunction ?
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
No Go to the next step.
INSPECT ECCENTRIC SHAFT POSITION
SENSOR
Replace the eccentric shaft position sensor, then
go to the next step.
Yes
•
15
Inspect the eccentric shaft position
sensor.
(See ECCENTRIC SHAFT POSITION
SENSOR INSPECTION .)
•
(See ECCENTRIC SHAFT POSITION
SENSOR REMOVAL/INSTALLATION .)
No Go to the next step.
Is there any malfunction ?
VERIFY TROUBLESHOOTING OF DTC
P0133 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
16
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 3.
(See OBD-II DRIVE MODE .)
•
No Go to the next step.
Is the PENDING CODE same as the
DTC present?
Go to the applicable DTC inspection.
VERIFY AFTER REPAIR PROCEDURE
Yes
•
17
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 113
DTC P0138
DTC P0138
Rear HO2S circuit high voltage
•
The PCM monitors the input voltage from the rear HO2S when the engine is
running. If the input voltage is more than 1.2 V , the PCM determines that the
rear HO2S circuit voltage is high.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is an intermittent monitor (HO2S).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction
condition during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Rear HO2S malfunction
Connector or terminal malfunction
Short to power supply in wiring harness between rear HO2S terminal A and PCM
terminal 2Q
PCM malfunction
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Engine Diagnostics & Control
Page 114
(w)
Engine Diagnostics & Control
Page 115
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT REAR HO2S CONNECTOR FOR
POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the rear HO2S connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT REAR HO2S CIRCUIT FOR
SHORT TO POWER SUPPLY
•
4
•
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between rear
HO2S terminal A (wiring harness-side)
and body GND.
Is the voltage B+ ?
Yes
5
If the vehicle is not repaired, go to the next
step.
Yes Repair or replace the terminal, then go to Step 7.
No Go to the next step.
Yes
Repair or replace the wiring harness for a
possible short to power supply, then go to Step 7.
No Go to the next step.
Replace the rear HO2S, then go to Step 7.
Yes
(See REAR HEATED OXYGEN SENSOR
(HO2S) REMOVAL/INSTALLATION .)
(See REAR HEATED OXYGEN
SENSOR (HO2S) INSPECTION .)
•
6
Inspect the rear HO2S.
•
No Go to the next step.
INSPECT REAR HO2S
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
No Go to the next step.
Yes
Repair or replace the terminal, then go to the next
step.
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Engine Diagnostics & Control
Page 116
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0138 COMPLETED
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
7
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 3.
(See OBD-II DRIVE MODE .)
•
No Go to the next step.
Is the PENDING CODE same as the
DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
8
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 117
DTC P0139
DTC P0139
Rear HO2S circuit slow response
•
The PCM monitors the rear HO2S inversion cycle period, lean-to-rich response time
and rich-to-lean response time when under the open loop fuel control (fuel cut off
control). If the average response time is more than the specification, the PCM
determines that the rear HO2S circuit response is slow.
Diagnostic support note
DETECTION
CONDITION
•
•
This is an intermittent monitor (HO2S).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
•
•
•
•
•
•
Purge solenoid valve malfunction
Looseness of rear HO2S
Leakage exhaust gas
Rear HO2S malfunction
Fuel line pressure malfunction
Leakage fuel
Fuel pump unit malfunction
AIR system malfunction
Leakage engine coolant
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 118
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE OR
STORED DTC
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Go to the DTC P0443 inspection.
Yes
(See DTC P0443 .)
3
•
•
•
Turn the ignition switch off, then to the
ON position (Engine off).
Verify the related PENDING CODE or
stored DTCs.
Is the DTC P0443 also present?
IDENTIFY TRIGGER DTC FOR FREEZE
FRAME DATA
4
5
•
Is DTC P0139 on FREEZE FRAME
DATA?
No Go to the next step.
Yes Go to the next step.
No
Go to the FREEZE FRAME DATA DTC
inspection.
(See DTC TABLE .)
Yes Go to Step 8.
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Engine Diagnostics & Control
Page 119
VERIFY CURRENT INPUT SIGNAL
STATUS OF REAR HO2S
•
•
•
•
•
Connect the WDS or equivalent to the
DLC-2.
Start the engine and warm it up
completely.
Access the O2S12 PID.
Read the O2S12 PID under following
accelerator pedal conditions (in PARK or No Go to the next step.
NEUTRAL).
More than 0.55 V when
suddenly depress accelerator
pedal (rich condition).
Less than 0.55 V just after
release of accelerator pedal (lean
condition).
Is the PID normal?
INSPECT INSTALLATION OF REAR HO2S
6
•
•
Inspect the rear HO2S for looseness.
Is it normal?
INSPECT EXHAUST SYSTEM FOR
EXHAUST GAS LEAKAGE
7
•
•
Visually inspect exhaust gas leakage in
the exhaust system.
Is there exhaust gas leakage?
Yes Go to the next step.
Tighten the rear HO2S, then go to Step 14.
No
Yes
(See REAR HEATED OXYGEN SENSOR
(HO2S) REMOVAL/INSTALLATION .)
Repair or replace the malfunctioning part, then
go to Step 14.
Replace the rear HO2S, then go to Step 14.
No
INSPECT LONG TERM FUEL TRIM
(See REAR HEATED OXYGEN SENSOR
(HO2S) REMOVAL/INSTALLATION .)
Engine is driven under rich condition.
Yes
•
8
•
•
•
9
Connect the WDS or equivalent to the
DLC-2.
Access the LONGFT1 PID.
Compare the LONGFT1 PID with
recorded FREEZE FRAME DATA at
Step 1.
Is the LONGFT1 PID below FREEZE
FRAME DATA?
INSPECT FUEL LINE PRESSURE
(EXCESSIVE FUEL LINE PRESSURE)
Go to the next step.
Engine is driven under lean condition.
No
Go to Step 10.
Yes
Repair or replace the malfunctioning part
according to the inspection results.
Then go to the Step 14.
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Engine Diagnostics & Control
Page 120
•
Perform the "FUEL LINE PRESSURE
INSPECTION".
(See FUEL LINE PRESSURE
INSPECTION .)
•
Is there any malfunction ?
INSPECT FUEL LINE PRESSURE (LOW
FUEL LINE PRESSURE)
•
10
•
•
No Go to step 12.
Is there any malfunction ?
INSPECT FUEL SYSTEM FOR FUEL
LEAKAGE
11
Yes Go to the next step.
Perform the "FUEL LINE PRESSURE
INSPECTION".
(See FUEL LINE PRESSURE
INSPECTION .)
•
No Go to the next step.
Visually inspect fuel leakage in the fuel
system.
Is there fuel leakage?
Yes
Replace the fuel pump unit, then go to Step 14.
No
INSPECT AIR SYSTEM OPERATION
•
12
Perform the "AIR System Inspection".
Repair or replace the malfunctioning part, then
go to Step 14.
Yes
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION .)
Repair or replace the malfunctioning part,
according to inspection results.
Then go to Step 14.
(See Secondary Air Injection (AIR)
System Inspection .)
•
Is there any malfunction?
INSPECT ENGINE COOLANT PASSAGE
FOR ENGINE COOLANT LEAKAGE
•
13
Perform the "ENGINE COOLANT
LEAKAGE INSPECTION".
(See ENGINE COOLANT LEAKAGE
INSPECTION .)
•
No Go to the next step.
Yes
Repair or replace the malfunctioning part
according to the inspection results.
Then go to the next step.
No Go to the next step.
Is there any malfunction?
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Engine Diagnostics & Control
Page 121
VERIFY TROUBLESHOOTING OF DTC
P0139 COMPLETED
•
•
14
•
Yes
(See PCM REMOVAL/INSTALLATION .)
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 3.
(See OBD-II DRIVE MODE .)
•
Replace the PCM, then go to the next step.
No Go to the next step.
Is the PENDING CODE same as the
DTC present?
Go to the applicable DTC inspection.
VERIFY AFTER REPAIR PROCEDURE
Yes
•
15
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 122
DTC P0171
DTC P0171
System too lean
•
The PCM monitors the short term fuel trim (SHRTFT) and long term fuel trim
(LONGFT) when under closed loop fuel control. If the fuel trim is more than the
specification, the PCM determines that the system is too lean.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
•
•
•
•
•
•
•
This is a continuous monitor (Fuel system).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Front HO2S malfunction
Excess air suction in intake-air system
Leakage exhaust gas
MAF sensor malfunction
Fuel line pressure malfunction
Fuel pump unit malfunction
Leakage fuel
Ignition system malfunction
High-tension lead malfunction
Incorrect power supply to ignition coil
Ignition coil malfunction
Insufficient compression
Metering oil pump malfunction
Engine oil condition malfunction
Rised oil pressure
Oil passage malfunction
Engine malfunction
Fuel injector malfunction
PCM malfunction
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Engine Diagnostics & Control
Page 123
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins
and/or on-line repair information
availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE
OR STORED DTC
3
•
•
•
Turn the ignition switch off, then to
the ON position (Engine off).
Verify the related PENDING CODE
or stored DTCs.
Are other DTCs present?
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
Yes
•
No Go to the next step.
Yes
•
•
5
If misfire DTC is present, go to Step 8.
If other DTC is present, go to the appropriate
DTC inspection.
(See DTC TABLE .)
No
•
•
4
If the vehicle is not repaired, go to the next
step.
If drive ability concern is present, go to Step
8.
If other, go to the next step.
IDENTIFY TRIGGER DTC FOR FREEZE Yes Go to the next step.
FRAME DATA
Go to the FREEZE FRAME DATA DTC inspection.
• Is DTC P0171 on FREEZE FRAME No
DATA?
(See DTC TABLE .)
Yes Go to the next step.
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Engine Diagnostics & Control
Page 124
VERIFY CURRENT INPUT SIGNAL
STATUS
•
•
Connect the WDS or equivalent to
the DLC-2.
Verify the following PIDs.
(See PCM INSPECTION .)
No
Then go to Step 24.
APP
ECT
MAF
TP
VSS
Are the PIDs normal?
•
VERIFY CURRENT INPUT SIGNAL
STATUS UNDER FREEZE FRAME
DATA CONDITION
•
•
6
APP
ECT
MAF
TP
VSS
Are the PIDs normal?
•
VERIFY CURRENT INPUT SIGNAL
STATUS OF FRONT HO2S
•
•
7
•
•
Yes Go to the next step.
Connect the WDS or equivalent to
the DLC-2.
Verify the following PIDs under the
FREEZE FRAME DATA condition.
(See PCM INSPECTION .)
Inspect the malfunctioning part according to the
inspection results.
No
Inspect the malfunctioning part according to the
inspection results.
Then go to Step 24.
Inspect for air suction at followings due to cracks,
damages and loosening parts:
Connect the WDS or equivalent to
• From air cleaner to throttle body
the DLC-2.
• From throttle body to intake manifold
Start the engine and warm it up
• Vacuum hoses
completely.
Access the O2S11 PID.
Yes NOTE:
Read the O2S11 PID under
following accelerator pedal
• Engine speed may change when rust
condition (in PARK or NEUTRAL).
penetrating agent (cab cleaner etc.) is sprayed
Less than 1 mA when
on the air suction area.
accelerator pedal is suddenly
depressed (rich condition).
Repair or replace the malfunctioning part, then go to
More than 1 mA just after
Step 24.
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Engine Diagnostics & Control
Page 125
•
release of accelerator pedal
(lean condition)
Is the PID normal?
INSPECT EXHAUST SYSTEM FOR
EXHAUST GAS LEAKAGE
8
•
•
9
•
•
•
•
•
•
Repair or replace the malfunctioning part, then go to
Step 24.
Yes Go to the next step.
Connect the WDS or equivalent to
the DLC-2.
Replace the MAF/IAT sensor, then go to Step 24.
Start the engine.
Access the MAF PID.
No (See MASS AIR FLOW (MAF)/INTAKE AIR
Verify that the MAF PID changes
TEMPERATURE (IAT) SENSOR
quickly according to race the engine
REMOVAL/INSTALLATION .)
RPM.
Is the PID normal?
INSPECT INTAKE-AIR SYSTEM FOR
EXCESSIVE AIR SUCTION
10
Yes
Replace the front HO2S, then go to Step 24.
Visually inspect exhaust gas leakage
in the exhaust system.
No
(See FRONT HEATED OXYGEN SENSOR (HO2S)
Is there exhaust gas leakage?
REMOVAL/INSTALLATION .)
VERIFY CURRENT INPUT SIGNAL
STATUS OF MAF SENSOR
•
No Go to the next step.
Visually inspect for loosen, cracks
or damages hoses in intake-air
system.
Is there any malfunction?
Yes
Repair or replace the malfunctioning part, then go to
Step 24.
No Go to the next step.
INSPECT FUEL LINE PRESSURE
•
11
Perform the "FUEL LINE
PRESSURE INSPECTION".
•
Yes
(See FUEL LINE PRESSURE
INSPECTION .)
•
•
If the fuel line pressure is too low, go to the
next step.
If the fuel line pressure is too high, replace the
fuel pump unit, then go to Step 24.
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION .)
Is there any malfunction ?
No Go to Step 13.
INSPECT FUEL SYSTEM FOR FUEL
LEAKAGE
12
•
•
13
Visually inspect fuel leakage in the
fuel system.
Is there fuel leakage?
Yes
Repair or replace the malfunctioning part, then go to
Step 24.
Replace the fuel pump unit, then go to Step 25.
No
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION .)
Yes Go to Step 17.
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Engine Diagnostics & Control
Page 126
INSPECT IGNITION COIL OPERATION
AND HIGH-TENSION LEAD WITH
TIMING LIGHT
•
•
Inspect the blinking condition on
each high-tension lead using timing
light at idle.
Do all the high-tension leads show
blinking condition?
No Go to the next step.
INSPECT HIGH-TENSION LEAD OF NO
BLINKING HIGH-TENSION LEAD
Replace the malfunctioning high-tension lead, then
go to Step 24.
Yes
•
14
Inspect the high-tension leads.
(See HIGH-TENSION LEAD
INSPECTION .)
•
Is there any malfunction?
INSPECT IGNITION COIL POWER
CIRCUIT FOR OPEN CIRCUIT OR
SHORT TO GND
15
(See HIGH-TENSION LEAD
REMOVAL/INSTALLATION .)
•
•
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between
ignition coil terminal C (wiring
harness-side) and body GND.
Is the voltage B+ ?
No Go to the next step.
Yes Go to the next step.
No
Replace the ignition coil, then go to Step 24.
INSPECT IGNITION COIL
•
16
Inspect the ignition coil.
Repair or replace the wiring harness for a possible
open circuit or short to GND, then go to Step 24.
Yes
(See IGNITION COIL
REMOVAL/INSTALLATION .)
(See IGNITION COIL
INSPECTION .)
•
Is there any malfunction?
INSPECT AIR SYSTEM OPERATION
•
17
Yes Go to the next step.
Perform the "AIR System
Inspection".
(See Secondary Air Injection (AIR)
System Inspection .)
•
No Go to the next step.
No
Repair or replace malfunctioning part according to
the inspection results.
Then go to Step 23.
Does AIR system operate properly?
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Engine Diagnostics & Control
Page 127
INSPECT ENGINE COMPRESSION
•
18
Inspect the engine compression.
(See COMPRESSION
INSPECTION .)
•
Yes Go to the next step.
No Go to Step 23.
Is there any malfunction?
Repair or replace the malfunctioning part according
to the inspection results.
INSPECT METERING OIL PUMP
•
19
Inspect the metering oil pump.
Yes
(See METERING OIL PUMP
INSPECTION .)
•
Is there any malfunction?
Overhaul or replace the engine.
Then go to Step 24.
No Go to the next step.
Yes Go to the next step.
Replace the engine oil.
INSPECT ENGINE OIL CONDITION
20
•
•
Inspect the engine oil condition.
Is the engine oil condition normal?
Inspect the ECT sensor and related harnesses.
No
(See ENGINE COOLANT TEMPERATURE (ECT)
SENSOR INSPECTION .)
Overhaul or replace the engine.
Then go to Step 24.
Repair or replace the malfunctioning part according
to the inspection results.
INSPECT OIL PRESSURE
•
21
Inspect the oil pressure.
Yes
(See OIL PRESSURE
INSPECTION .)
•
Is there any malfunction?
Then go to Step 24.
No Go to the next step.
Inspect and repair for leakage and/or clogged in oil
passage at engine.
INSPECT OIL PASSAGE
22
•
•
Inspect the oil pipe between
metering oil pump and metering oil
nozzle.
Is there any malfunction?
Overhaul or replace the engine.
Yes
Overhaul or replace the engine.
Then go to Step 24.
Overhaul or replace the engine.
No
Then go to the next step.
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Engine Diagnostics & Control
Page 128
INSPECT FUEL INJECTOR
•
23
Yes
(See FUEL INJECTOR
INSPECTION .)
•
24
Inspect the fuel injector.
Replace the fuel injector, then go to the next step.
Is there any malfunction?
(See FUEL INJECTOR
REMOVAL/INSTALLATION .)
No Go to the next step.
VERIFY TROUBLESHOOTING OF DTC
Replace the PCM, then go to the next step.
P0171 COMPLETED
Yes
(See PCM REMOVAL/INSTALLATION .)
• Make sure to reconnect all
disconnected connectors.
• Clear the DTC from the PCM
memory using the WDS or
equivalent.
• Perform the "DRIVE MODE 1".
No Go to the next step.
(See OBD-II DRIVE MODE .)
•
Is the PENDING CODE same as the
DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
25
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR
PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 129
DTC P0172
DTC P0172
System too rich
•
The PCM monitors the short term fuel trim (SHRTFT) and long term fuel trim
(LONGFT) when under closed loop fuel control. If the fuel trim is less than the
specification, the PCM determines that the system is too rich.
Diagnostic support note
DETECTION
CONDITION
•
•
This is a continuous monitor (Fuel system).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
•
•
Front HO2S malfunction
Fuel line pressure malfunction
Fuel pump unit malfunction
Purge solenoid valve malfunction
Fuel pump speed control malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 130
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE OR
STORED DTC
3
•
•
•
Turn the ignition switch off, then to the
ON position (Engine off).
Verify the related PENDING CODE or
stored DTCs.
Are other DTCs present?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
No Go to the next step.
Yes
•
•
4
5
•
Is DTC P0172 on FREEZE FRAME
DATA?
If misfire DTC is present, go to Step 8.
If other DTC is present, go to the
appropriate DTC inspection.
(See DTC TABLE .)
No
•
•
IDENTIFY TRIGGER DTC FOR FREEZE
FRAME DATA
If the vehicle is not repaired, go to the
next step.
If drive ability concern is present, go to
Step 8.
If other, go to the next step.
Yes Go to the next step.
No
Go to the FREEZE FRAME DATA DTC
inspection.
(See DTC TABLE .)
Yes Go to the next step.
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Engine Diagnostics & Control
Page 131
VERIFY CURRENT INPUT SIGNAL
STATUS
•
•
Connect the WDS or equivalent to the
DLC-2.
Verify the following PIDs.
(See PCM INSPECTION .)
No
Then go to Step 11.
APP
ECT
MAF
TP
VSS
Are the PIDs normal?
•
VERIFY CURRENT INPUT SIGNAL
STATUS UNDER FREEZE FRAME DATA
CONDITION
•
•
6
APP
ECT
MAF
TP
VSS
Are the PIDs normal?
•
7
Yes Go to the next step.
Connect the WDS or equivalent to the
DLC-2.
Verify the following PIDs under the
FREEZE FRAME DATA condition.
(See PCM INSPECTION .)
Inspect the malfunctioning part according to the
inspection results.
No
Inspect the malfunctioning part according to the
inspection results.
Then go to Step 11.
Yes Go to the next step.
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Engine Diagnostics & Control
Page 132
VERIFY CURRENT INPUT SIGNAL
STATUS OF FRONT HO2S
•
•
•
•
•
Connect the WDS or equivalent to the
DLC-2.
Start the engine and warm it up
completely.
Access the O2S11 PID.
Read the O2S11 PID under following
accelerator pedal condition (in PARK or
NEUTRAL).
Less than 1 mA when
accelerator pedal is suddenly
depressed (rich condition).
More than 1 mA just after
release of accelerator pedal (lean
condition)
Is the PID normal?
Replace the front HO2S, then go to Step 11.
No
Replace the fuel pump unit, then go to Step 11.
INSPECT FUEL LINE PRESSURE
•
8
Perform the "FUEL LINE PRESSURE
INSPECTION".
(See FUEL LINE PRESSURE
INSPECTION .)
•
(See FRONT HEATED OXYGEN SENSOR
(HO2S) REMOVAL/INSTALLATION .)
Yes
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION .)
No Go to the next step.
Is there any malfunction ?
Inspect the purge solenoid valve.
INSPECT LONG TERM FUEL TRIM
•
9
•
•
•
Connect the WDS or equivalent to the
DLC-2.
Access the LONGFT1 PID.
Compare the LONGFT1 PID with
recorded FREEZE FRAME DATA at
Step 1.
Is the LONGFT1 PID above FREEZE
FRAME DATA?
(See PURGE SOLENOID VALVE
INSPECTION .)
Yes
•
If there is any malfunction, replace the
purge solenoid valve.
(See INTAKE-AIR SYSTEM HOSE
ROUTING DIAGRAM .)
Then go to Step 11.
No Go to the next step.
10
INSPECT FUEL PUMP SPEED CONTROL
OPERATION
Yes
Repair or replace the malfunctioning part
according to the inspection results.
Then go to the next step.
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Engine Diagnostics & Control
Page 133
•
Perform the "Fuel Pump Speed Control
Operation Inspection".
(See Fuel Pump Speed Control
Operation Inspection .)
•
No Go to the next step.
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0172 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
11
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the "DRIVE MODE 1".
(See OBD-II DRIVE MODE .)
•
No Go to the next step.
Is the PENDING CODE same as the
DTC present?
Go to the applicable DTC inspection.
VERIFY AFTER REPAIR PROCEDURE
Yes
•
12
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 134
DTC P02XX
DTC P0222
DTC P0222
TP sensor No.2 circuit low input
•
The PCM monitors the input voltage from the TP sensor No.2 when the engine is
running. If the input voltage is less than 0.7 V , the PCM determines that the TP
sensor No.2 circuit input voltage is low.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
TP sensor No.2 malfunction
Connector or terminal malfunction
Open circuit in wiring harness between throttle body terminal E and PCM
terminal 1Q
Short to GND in wiring harness between throttle body terminal E and PCM
terminal 1Q
Open circuit in wiring harness between throttle body terminal D and PCM
terminal 1M
Short to GND in wiring harness between throttle body terminal D and PCM
terminal 1M
PCM malfunction
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Engine Diagnostics & Control
Page 135
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Engine Diagnostics & Control
Page 136
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT THROTTLE BODY CONNECTOR
FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the throttle body connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT TP SENSOR NO.2 CIRCUIT FOR
SHORT TO GND
•
•
4
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Throttle body terminal E (wiring
harness-side) and body GND
Throttle body terminal D (wiring
harness-side) and body GND
Is there any continuity?
Yes
5
Inspect the TP sensor No.2.
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
8.
No Go to the next step.
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 8.
No Go to the next step.
Replace the throttle body, then go to Step 8.
INSPECT TP SENSOR NO.2
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
(See THROTTLE POSITION (TP)
SENSOR INSPECTION .)
•
Is there any malfunction ?
No Go to the next step.
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Engine Diagnostics & Control
Page 137
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
6
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT TP SENSOR NO.2 CIRCUIT FOR
OPEN CIRCUIT
•
•
7
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Throttle body terminal E (wiring
harness-side) and PCM terminal
1Q (wiring harness-side)
Throttle body terminal D (wiring
harness-side) and PCM terminal
1M (wiring harness-side)
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P0222 COMPLETED
Yes
Repair or replace the terminal, then go to Step
8.
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
8
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the same DTC present?
No Go to the next step.
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
9
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 138
DTC P0223
DTC P0223
TP sensor No.2 circuit high input
•
The PCM monitors the input voltage from the TP sensor No.2 when the engine is
running. If the input voltage is more than 4.8 V , the PCM determines that the TP
sensor No.2 circuit input voltage is high.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
TP sensor No.2 malfunction
Connector or terminal malfunction
Short to power supply in wiring harness between throttle body terminal D and
PCM terminal 1M
Open circuit in wiring harness between throttle body terminal C and PCM
terminal 2F
PCM malfunction
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Engine Diagnostics & Control
Page 139
Notes:
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Engine Diagnostics & Control
Page 140
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT THROTTLE BODY CONNECTOR
FOR POOR CONNECTION
3
•
•
•
•
4
Turn the ignition switch off.
Disconnect the throttle body connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
Yes
No Go to the next step.
INSPECT TP SENSOR NO.2 SIGNAL CIRCUIT
Repair or replace the wiring harness for a
FOR SHORT TO POWER SUPPLY
Yes possible short to power supply, then go to Step
8.
• Turn the ignition switch to the ON position
(Engine off).
• Measure the voltage between throttle body
terminal D (wiring harness-side) and body No Go to the next step.
GND.
• Is the voltage B+ ?
Replace the throttle body, then go to Step 8.
INSPECT TP SENSOR NO.2
•
5
Inspect the TP sensor No.2.
Yes
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
(See THROTTLE POSITION (TP)
SENSOR INSPECTION .)
•
6
Repair or replace the terminal, then go to Step
8.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
8.
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Engine Diagnostics & Control
Page 141
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT TP SENSOR NO.2 GND CIRCUIT
FOR OPEN CIRCUIT
7
•
•
•
8
No Go to the next step.
Yes Go to the next step.
Turn the ignition switch off.
Inspect for continuity between throttle body
Repair or replace the wiring harness for a
terminal C (wiring harness-side) and PCM No possible open circuit, then go to the next step.
terminal 2F (wiring harness-side).
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC P0223
Replace the PCM, then go to the next step.
COMPLETED
Yes
(See PCM REMOVAL/INSTALLATION .)
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
• Start the engine.
• Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
9
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 142
DTC P0300
DTC P0300
Random misfire detected
•
DETECTION
CONDITION
Diagnostic support note
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
The PCM monitors eccentric shaft position sensor input signal interval time. The
PCM calculates the change of the interval time for each rotor. If the change of
interval time exceeds the preprogrammed criteria, the PCM detects a misfire in the
corresponding rotor. While the engine is running, the PCM counts the number of
misfires that occurred at 200 eccentric shaft revolutions and 1,000 eccentric shaft
revolutions and calculates misfire ratio for each eccentric shaft revolution. If the
ratio exceeds the preprogrammed criteria, the PCM determines that a misfire, which
can damage the catalytic converter or affect emission performance, has occurred.
•
•
•
•
•
•
•
•
This is a continuous monitor (Misfire).
The MIL illuminates if the PCM detects the misfire which affects emission
performance in two consecutive drive cycles or in one drive cycle while the DTC for
the same malfunction has been stored in the PCM.
The MIL flashes if the PCM detects the misfire which can damage the catalytic
converter during the first drive cycle. Therefore, PENDING CODE is not available
while the MIL flashes.
PENDING CODE is available if the PCM detects the misfire which affects emission
performance during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Eccentric shaft position sensor malfunction
Ignition system malfunction
High-tension lead malfunction
Incorrect power supply to ignition coil
Ignition coil malfunction
MAF sensor malfunction
Excess air suction in intake-air system
Fuel line pressure malfunction
Fuel pump unit malfunction
Leakage fuel
Insufficient compression
Metering oil pump malfunction
Engine oil condition malfunction
Rised oil pressure
Oil passage malfunction
Engine malfunction
ECT sensor malfunction
Purge control system malfunction
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Engine Diagnostics & Control
Page 143
•
•
Leakage engine coolant
PCM malfunction
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Engine Diagnostics & Control
Page 144
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins
and/or on-line repair information
availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE
OR STORED DTC
3
•
•
•
•
If the vehicle is not repaired, go to the next
step.
Go to the appropriate DTC inspection.
Yes
Yes Go to the next step.
Connect the WDS or equivalent to
the DLC-2.
Verify the following PIDs.
APP
ECT
MAF
TP
VSS
Are the PIDs normal?
•
•
No Go to the next step.
(See PCM INSPECTION .)
4
5
Yes
(See DTC TABLE .)
Turn the ignition switch off, then to
the ON position (Engine off).
Verify the related PENDING CODE
No Go to the next step.
or stored DTCs.
Are other DTCs present?
VERIFY CURRENT INPUT SIGNAL
STATUS
•
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
No
Inspect the malfunctioning part according to the
inspection results.
Then go to Step 22.
Yes Go to the next step.
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Engine Diagnostics & Control
Page 145
VERIFY CURRENT INPUT SIGNAL
STATUS UNDER FREEZE FRAME
DATA CONDITION
•
•
Connect the WDS or equivalent to
the DLC-2.
Verify the following PIDs under the
FREEZE FRAME DATA condition.
(See PCM INSPECTION .)
No
Inspect the malfunctioning part according to the
inspection results.
Then go to Step 22.
APP
ECT
MAF
TP
VSS
Are the PIDs normal?
•
Replace the eccentric shaft position sensor, then go
to Step 22.
INSPECT ECCENTRIC SHAFT
POSITION SENSOR
Yes
•
6
Inspect the eccentric shaft position
sensor.
(See ECCENTRIC SHAFT POSITION SENSOR
REMOVAL/INSTALLATION .)
(See ECCENTRIC SHAFT
POSITION SENSOR INSPECTION
.)
No Go to the next step.
•
Is there any malfunction?
INSPECT IGNITION COIL OPERATION Yes Go to Step 11.
AND HIGH-TENSION LEAD WITH
TIMING LIGHT
7
•
•
Inspect the blinking condition on
each high-tension leads using timing No Go to the next step.
light at idle.
Do all the high-tension leads show
blinking condition?
INSPECT HIGH-TENSION LEAD OF NO
BLINKING HIGH-TENSION LEAD
Replace the malfunctioning high-tension lead, then
go to Step 22.
Yes
•
8
Inspect the high-tension leads.
(See HIGH-TENSION LEAD
REMOVAL/INSTALLATION .)
(See HIGH-TENSION LEAD
INSPECTION .)
•
Is there any malfunction?
No Go to the next step.
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Engine Diagnostics & Control
Page 146
INSPECT IGNITION COIL POWER
CIRCUIT FOR OPEN CIRCUIT OR
SHORT TO GND
9
•
•
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between
ignition coil terminal C (wiring
harness-side) and body GND.
Is the voltage B+ ?
Yes Go to the next step.
No
Replace the ignition coil, then go to Step 22.
INSPECT IGNITION COIL
•
10
Inspect the ignition coil.
Is there any malfunction?
VERIFY CURRENT INPUT SIGNAL
STATUS OF MAF SENSOR
•
•
•
•
•
(See IGNITION COIL
REMOVAL/INSTALLATION .)
•
•
No Go to the next step.
Yes Go to the next step.
Connect the WDS or equivalent to
the DLC-2.
Replace the MAF/IAT sensor, then go to Step 22.
Start the engine.
Access the MAF PID.
No (See MASS AIR FLOW (MAF)/INTAKE AIR
Verify that the MAF PID changes
TEMPERATURE (IAT) SENSOR
quickly according to race the engine
REMOVAL/INSTALLATION .)
RPM.
Is the PID normal?
INSPECT INTAKE-AIR SYSTEM FOR
EXCESSIVE AIR SUCTION
12
Yes
(See IGNITION COIL
INSPECTION .)
•
11
Repair or replace the wiring harness for a possible
open circuit or short to GND, then go to Step 22.
Visually inspect for loosen, cracks
or damages hoses in intake-air
system.
Is there any malfunction?
Yes
Repair or replace the malfunctioning part, then go to
Step 22.
No Go to the next step.
INSPECT FUEL LINE PRESSURE
•
13
Perform the "FUEL LINE
PRESSURE INSPECTION".
(See FUEL LINE PRESSURE
INSPECTION .)
•
Yes
•
If the fuel line pressure is too low, go to the
next step.
If the fuel line pressure is too high, replace the
fuel pump unit, then go to Step 22.
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 147
•
Is there any malfunction ?
INSPECT FUEL SYSTEM FOR FUEL
LEAKAGE
14
•
•
Visually inspect fuel leakage in the
fuel system.
Is there fuel leakage?
INSPECT ENGINE COMPRESSION
•
15
Yes
Replace the fuel pump unit, then go to Step 22.
No
16
No Go to Step 20.
Is there any malfunction?
Repair or replace the malfunctioning part according
to the inspection results.
Inspect the metering oil pump.
Yes
(See METERING OIL PUMP
INSPECTION .)
•
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION .)
Yes Go to the next step.
INSPECT METERING OIL PUMP
•
Repair or replace the malfunctioning part, then go to
Step 22.
Inspect the engine compression.
(See COMPRESSION
INSPECTION .)
•
No Go to Step 15.
Is there any malfunction?
Overhaul or replace the engine.
Then go to Step 22.
No Go to the next step.
Yes Go to the next step.
Replace the engine oil.
INSPECT ENGINE OIL CONDITION
17
•
•
Inspect the engine oil condition.
Is the engine oil condition normal?
Inspect the ECT sensor and related harnesses.
No
(See ENGINE COOLANT TEMPERATURE (ECT)
SENSOR INSPECTION .)
Overhaul or replace the engine.
Then go to Step 22.
Repair or replace the malfunctioning part according
to the inspection results.
INSPECT OIL PRESSURE
•
18
Inspect the oil pressure.
(See OIL PRESSURE
INSPECTION .)
•
Is there any malfunction?
Yes
Overhaul or replace the engine.
Then go to Step 22.
No Go to the next step.
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Engine Diagnostics & Control
Page 148
Inspect and repair for leakage and/or clogged in oil
passage at engine.
INSPECT OIL PASSAGE
19
•
•
Inspect the oil pipe between
metering oil pump and metering oil
nozzle.
Is there any malfunction?
Yes
Overhaul or replace the engine.
Then go to Step 22.
Overhaul or replace the engine.
No
Then go to Step 22.
INSPECT PURGE CONTROL SYSTEM
OPERATION
•
20
Perform the "Purge Control System
Inspection".
(See Purge Control System
Inspection .)
•
Yes
Repair or replace the malfunctioning part according
to the inspection results.
Then go to Step 22.
No Go to the next step.
Is there any malfunction?
INSPECT ENGINE COOLANT
PASSAGE FOR ENGINE COOLANT
LEAKAGE
Yes
Repair or replace the malfunctioning part according
to the inspection results.
Then go to the next step.
•
21
Perform the "ENGINE COOLANT
LEAKAGE INSPECTION".
(See ENGINE COOLANT
LEAKAGE INSPECTION .)
•
No Go to the next step.
Is there any malfunction?
22
VERIFY TROUBLESHOOTING OF DTC
Replace the PCM, then go to the next step.
P0300 COMPLETED
Yes
(See PCM REMOVAL/INSTALLATION .)
• Make sure to reconnect all
disconnected connectors.
• Clear the DTC from the PCM
memory using the WDS or
equivalent.
No Go to the next step.
• Start the engine and warm it up
completely.
• Is the PENDING CODE same as the
DTC present?
23
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
(See DTC TABLE .)
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Engine Diagnostics & Control
Page 149
•
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR
PROCEDURE .)
•
No DTC troubleshooting completed.
Are any DTCs present?
Notes:
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Engine Diagnostics & Control
Page 150
DTC P0301, P0302
DTC P0301
Front rotor misfire detected
DTC P0302
Rear rotor misfire detected
•
DETECTION
CONDITION
Diagnostic support note
•
•
•
•
•
•
POSSIBLE
CAUSE
The PCM monitors eccentric shaft position sensor input signal interval time. The
PCM calculates the change of the interval time for each rotor. If the change of
interval time exceeds the preprogrammed criteria, the PCM detects a misfire in the
corresponding rotor. While the engine is running, the PCM counts the number of
misfires that occurred at 200 eccentric shaft revolutions and 1,000 eccentric shaft
revolutions and calculates misfire ratio for each eccentric shaft revolution. If the
ratio exceeds the preprogrammed criteria, the PCM determines that a misfire, which
can damage the catalytic converter or affect emission performance, has occurred.
•
•
•
•
•
•
•
•
•
•
This is a continuous monitor (Misfire).
The MIL illuminates if the PCM detects the misfire which affects emission
performance in two consecutive drive cycles or in one drive cycle while the DTC for
the same malfunction has been stored in the PCM.
The MIL flashes if the PCM detects the misfire which can damage the catalytic
converter during the first drive cycle. Therefore, PENDING CODE is not available
while the MIL flashes.
PENDING CODE is available if the PCM detects the misfire which affects emission
performance during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Eccentric shaft position sensor malfunction
Spark plug malfunction
High-tension lead malfunction
Excess air suction in intake-air system
Fuel injector malfunction
Leakage engine coolant
Insufficient compression
Metering oil pump malfunction
Engine oil condition malfunction
Rised oil pressure
Oil passage malfunction
Engine malfunction
ECT sensor malfunction
Fuel line pressure malfunction
Fuel pump unit malfunction
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Engine Diagnostics & Control
Page 151
•
PCM malfunction
Notes:
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Engine Diagnostics & Control
Page 152
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE OR
STORED DTC
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Go to the appropriate DTC inspection.
Yes
(See DTC TABLE .)
3
•
•
•
Turn the ignition switch off, then to the
ON position (Engine off).
Verify the related PENDING CODE or
stored DTCs.
Are other DTCs present?
No Go to the next step.
VERIFY CURRENT INPUT SIGNAL STATUS Yes Go to the next step.
•
•
Connect the WDS or equivalent to the
DLC-2.
Verify the following PIDs.
(See PCM INSPECTION .)
4
APP
ECT
MAF
TP
VSS
Are the PIDs normal?
•
5
No
Inspect the malfunctioning part according to the
inspection results.
Then go to Step 19.
Yes Go to the next step.
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Engine Diagnostics & Control
Page 153
VERIFY CURRENT INPUT SIGNAL STATUS
UNDER FREEZE FRAME DATA CONDITION
•
•
Connect the WDS or equivalent to the
DLC-2.
Verify the following PIDs under the
FREEZE FRAME DATA condition.
(See PCM INSPECTION .)
No
Then go to Step 19.
APP
ECT
MAF
TP
VSS
Are the PIDs normal?
•
Inspect the malfunctioning part according to the
inspection results.
INSPECT ECCENTRIC SHAFT POSITION
SENSOR
Replace the eccentric shaft position sensor, then
go to Step 19.
Yes
•
6
(See ECCENTRIC SHAFT POSITION
SENSOR INSPECTION .)
•
(See ECCENTRIC SHAFT POSITION
SENSOR REMOVAL/INSTALLATION .)
Inspect the eccentric shaft position
sensor.
No Go to the next step.
Is there any malfunction?
INSPECT SPARK PLUG
•
7
Inspect the spark plug.
Replace the spark plug, then go to Step 19
Yes
(See SPARK PLUG INSPECTION .)
•
Is there any malfunction?
No Go to the next step.
Replace the malfunctioning high-tension lead,
then go to Step 19.
INSPECT HIGH-TENSION LEAD
•
8
Inspect the high-tension leads.
Yes
(See HIGH-TENSION LEAD
REMOVAL/INSTALLATION .)
(See HIGH-TENSION LEAD
INSPECTION .)
•
9
(See SPARK PLUG
REMOVAL/INSTALLATION .)
Is there any malfunction?
INSPECT INTAKE-AIR SYSTEM FOR
EXCESSIVE AIR SUCTION
No Go to the next step.
Yes
Repair or replace the malfunctioning part, then
go to Step 19.
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Engine Diagnostics & Control
Page 154
•
•
Visually inspect for loosen, cracks or
damages hoses in intake-air system.
Is there any malfunction?
INSPECT FUEL INJECTOR WIRING
HARNESS
10
•
•
•
•
•
Disconnect the fuel injector connector.
Connect the noid light to the fuel injector
connector terminals.
Remove the fuel pump relay.
Inspect the dim of light during cranking.
Does noid light illuminate?
INSPECT ENGINE COOLANT PASSAGE
FOR ENGINE COOLANT LEAKAGE
•
11
12
No
13
Yes
Repair or replace the malfunctioning part
according to the inspection results.
Then go to Step 19.
No Go to the next step.
Yes Go to the next step.
No Go to Step 17.
Is there any malfunction?
Inspect the metering oil pump.
(See METERING OIL PUMP
INSPECTION .)
Repair or replace the malfunctioning part
according to the inspection results.
Yes
Overhaul or replace the engine.
Then go to Step 19.
Is there any malfunction?
No Go to the next step.
INSPECT ENGINE OIL CONDITION
Yes Go to the next step.
•
14
If there is any malfunction, replace the
malfunctioning wiring harness.
Then go to Step 19.
INSPECT METERING OIL PUMP
•
•
Inspect the engine compression.
(See COMPRESSION INSPECTION .)
•
Inspect for fuel injector wiring harness.
Is there any malfunction?
INSPECT ENGINE COMPRESSION
•
Yes Go to the next step.
Perform the "ENGINE COOLANT
LEAKAGE INSPECTION".
(See ENGINE COOLANT LEAKAGE
INSPECTION .)
•
No Go to the next step.
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Engine Diagnostics & Control
Page 155
Replace the engine oil.
•
•
Inspect the engine oil condition.
Is the engine oil condition normal?
Inspect the ECT sensor and related harnesses.
No
(See ENGINE COOLANT TEMPERATURE
(ECT) SENSOR INSPECTION .)
Overhaul or replace the engine.
Then go to Step 19.
INSPECT OIL PRESSURE
•
15
Inspect the oil pressure.
Repair or replace the malfunctioning part
according to the inspection results.
Yes
Overhaul or replace the engine.
(See OIL PRESSURE INSPECTION .)
Then go to Step 19.
•
Is there any malfunction?
INSPECT OIL PASSAGE
16
•
•
No Go to the next step.
Inspect and repair for leakage and/or clogged in
oil passage at engine.
Yes
Inspect the oil pipe between metering oil
pump and metering oil nozzle.
Is there any malfunction?
Overhaul or replace the engine.
Then go to Step 19.
Overhaul or replace the engine.
No
Then go to the next step.
INSPECT FUEL LINE PRESSURE
•
17
Perform the "FUEL LINE PRESSURE
INSPECTION".
(See FUEL LINE PRESSURE
INSPECTION .)
•
Replace the fuel pump unit, then go to Step 19.
Yes
No Go to the next step.
Is there any malfunction ?
INSPECT FUEL INJECTOR
•
18
19
Inspect the fuel injector.
Replace the fuel injector, then go to the next
step.
Yes
(See FUEL INJECTOR
REMOVAL/INSTALLATION .)
(See FUEL INJECTOR INSPECTION .)
•
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION .)
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0301 OR DTC P0302 COMPLETED
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 156
•
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine and warm it up
completely.
Is the PENDING CODE same as the DTC
present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
20
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 157
DTC P0327
DTC P0327
KS circuit low input
•
The PCM monitors the input voltage from the KS when the engine is running. If
the input voltage is less than 1.2 V , the PCM determines that the KS circuit
input voltage is low.
Diagnostic support note
DETECTION
CONDITION
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
•
•
•
KS malfunction
Connector or terminal malfunction
Open circuit in wiring harness between KS terminal A and PCM terminal 1T
Short to GND in wiring harness between KS terminal A and PCM terminal 1T
Open circuit in wiring harness between KS terminal B and PCM terminal 1F
Short to GND in wiring harness between KS terminal B and PCM terminal 1F
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 158
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Engine Diagnostics & Control
Page 159
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT KS CONNECTOR FOR POOR
CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the KS connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT KS CIRCUIT FOR SHORT TO
GND
•
•
4
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
KS terminal A (wiring harnessside) and body GND
KS terminal B (wiring harnessside) and body GND
Is there continuity?
Yes
5
Inspect the KS.
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 8.
No Go to the next step.
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 8.
No Go to the next step.
Replace the KS, then go to Step 8.
INSPECT KS
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
(See KNOCK SENSOR (KS)
REMOVAL/INSTALLATION .)
(See KNOCK SENSOR (KS)
INSPECTION .)
•
Is there any malfunction ?
No Go to the next step.
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Engine Diagnostics & Control
Page 160
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
6
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT KS CIRCUIT FOR OPEN
CIRCUIT
•
•
7
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
KS terminal A (wiring harnessside) and PCM terminal 1T
(wiring harness-side)
KS terminal B (wiring harnessside) and PCM terminal 1F
(wiring harness-side)
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P0327 COMPLETED
•
8
•
•
•
Yes Repair or replace the terminal, then go to Step 8.
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
9
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 161
DTC P0328
DTC P0328
KS circuit high input
•
The PCM monitors the input voltage from the KS when the engine is running. If
the input voltage is more than 4.0 V , the PCM determines that the KS circuit
input voltage is high.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
KS malfunction
Connector or terminal malfunction
Short to power supply in wiring harness between KS terminal A and PCM
terminal 1T
Short to power supply in wiring harness between KS terminal B and PCM
terminal 1F
PCM malfunction
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Engine Diagnostics & Control
Page 162
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Engine Diagnostics & Control
Page 163
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins
and/or on-line repair information
availability.
Is any related repair information
available?
INSPECT KS CONNECTOR FOR POOR
CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the KS connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT KS CIRCUIT FOR SHORT TO
POWER SUPPLY
•
4
•
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between the
following circuits:
KS terminal A (wiring
harness-side) and body GND
KS terminal B (wiring
harness-side) and body GND
Is the voltage B+ ?
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 7.
No Go to the next step.
Yes
Repair or replace the wiring harness for a possible
short to power supply, then go to Step 7.
No Go to the next step.
Replace the KS, then go to Step 7.
5
INSPECT KS
Yes
(See KNOCK SENSOR (KS)
REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 164
•
Inspect the KS.
(See KNOCK SENSOR (KS)
INSPECTION .)
•
No Go to the next step.
Is there any malfunction ?
Repair or replace the terminal, then go to the next
INSPECT PCM CONNECTOR FOR POOR
Yes
step.
CONNECTION
6
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0328 COMPLETED
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
7
•
•
•
Make sure to reconnect all
disconnected connectors.
Clear the DTC from the PCM
memory using the WDS or
equivalent.
Start the engine.
Is the same DTC present?
No Go to the next step.
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
8
Perform the "AFTER REPAIR
PROCEDURE".
(See DTC TABLE .)
(See AFTER REPAIR PROCEDURE
.)
No DTC troubleshooting completed.
•
Are any DTCs present?
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Engine Diagnostics & Control
Page 165
DTC P0335
DTC P0335
Eccentric shaft position sensor circuit problem
•
DETECTION
CONDITION
Diagnostic support note
•
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
The PCM monitors the input signal from the eccentric shaft position sensor when
the mass intake airflow amount is more than 2 g/s {0.26 lb/min} . If the input
signal is not input, the PCM determines that there is a eccentric shaft position
sensor circuit malfunction.
•
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the first
drive cycle.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Eccentric shaft position sensor malfunction
Connector or terminal malfunction
Open circuit in wiring harness between eccentric shaft position sensor terminal A
and PCM terminal 2U
Short to power supply in wiring harness between eccentric shaft position sensor
terminal A and PCM terminal 2U
Short to GND in wiring harness between eccentric shaft position sensor terminal A
and PCM terminal 2U
Open circuit in wiring harness between eccentric shaft position sensor terminal B
and PCM terminal 2X
Short to power supply in wiring harness between eccentric shaft position sensor
terminal B and PCM terminal 2X
Short to GND in wiring harness between eccentric shaft position sensor terminal B
and PCM terminal 2X
Eccentric shaft position sensor is dirty
PCM malfunction
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Engine Diagnostics & Control
Page 166
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Engine Diagnostics & Control
Page 167
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT ECCENTRIC SHAFT POSITION
SENSOR CONNECTOR FOR POOR
CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the eccentric shaft position
sensor connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT ECCENTRIC SHAFT POSITION
SENSOR CIRCUIT FOR SHORT TO GND
•
•
4
•
5
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Eccentric shaft position sensor
terminal A (wiring harness-side)
and body GND
Eccentric shaft position sensor
terminal B (wiring harness-side)
and body GND
Is there continuity?
INSPECT ECCENTRIC SHAFT POSITION
SENSOR CIRCUIT FOR SHORT TO POWER
SUPPLY
Yes
Repair or replace the terminal, then go to Step
9.
No Go to the next step.
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 9.
No Go to the next step.
Repair or replace the wiring harness for a
Yes possible short to power supply, then go to Step
9.
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Engine Diagnostics & Control
Page 168
•
•
•
Turn the ignition switch to the ON position
(Engine off).
Measure the voltage between the following
circuits:
Eccentric shaft position sensor
No Go to the next step.
terminal A (wiring harness-side)
and body GND
Eccentric shaft position sensor
terminal B (wiring harness-side)
and body GND
Is the voltage B+ ?
Replace the eccentric shaft position sensor,
then go to Step 9.
INSPECT ECCENTRIC SHAFT POSITION
SENSOR
Yes
•
6
(See ECCENTRIC SHAFT POSITION
SENSOR INSPECTION .)
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
7
(See ECCENTRIC SHAFT POSITION
SENSOR REMOVAL/INSTALLATION .)
Inspect the eccentric shaft position sensor.
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT ECCENTRIC SHAFT POSITION
SENSOR CIRCUIT FOR OPEN CIRCUIT
•
•
8
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Eccentric shaft position sensor
terminal A (wiring harness-side)
and PCM terminal 2U (wiring
harness-side)
Eccentric shaft position sensor
terminal B (wiring harness-side)
and PCM terminal 2X (wiring
harness-side)
Is there continuity?
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
9.
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
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Engine Diagnostics & Control
Page 169
9
VERIFY TROUBLESHOOTING OF DTC P0335
Replace the PCM, then go to the next step.
COMPLETED
Yes
(See PCM REMOVAL/INSTALLATION .)
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
• Start the engine and run the engine for 5 s
or more.
• Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
10
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 170
DTC P0336
DTC P0336
Eccentric shaft position sensor circuit range/performance problem
•
DETECTION
CONDITION
Diagnostic support note
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the first
drive cycle.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
•
Eccentric shaft position sensor malfunction
Connector or terminal malfunction
Eccentric shaft position sensor is dirty
Eccentric shaft position plate malfunction
PCM malfunction
•
•
POSSIBLE
CAUSE
The PCM monitors the input signal from the eccentric shaft position sensor when
the engine is running. If the input signal is not the proper pulse number, the PCM
determines that there is a eccentric shaft position sensor circuit range/performance
problem.
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Engine Diagnostics & Control
Page 171
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Replace the eccentric shaft position plate, then
go to Step 7.
INSPECT ECCENTRIC SHAFT POSITION
PLATE
Yes
•
3
(See ECCENTRIC SHAFT POSITION
PLATE INSPECTION .)
•
Is there any malfunction ?
INSPECT ECCENTRIC SHAFT POSITION
SENSOR CONNECTOR FOR POOR
CONNECTION
4
•
•
•
•
5
(See ECCENTRIC SHAFT POSITION PLATE
REMOVAL/INSTALLATION .)
Inspect the eccentric shaft position plate.
Turn the ignition switch off.
Disconnect the eccentric shaft position
sensor connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT ECCENTRIC SHAFT POSITION
SENSOR
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
7.
No Go to the next step.
Replace the eccentric shaft position sensor,
then go to Step 7.
Yes
(See ECCENTRIC SHAFT POSITION
SENSOR REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 172
•
Inspect the eccentric shaft position sensor.
(See ECCENTRIC SHAFT POSITION
SENSOR INSPECTION .)
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
6
•
•
•
•
No Go to the next step.
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0336 COMPLETED
Yes
Repair or replace the terminal, then go to the
next step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
7
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the same DTC present?
No Go to the next step.
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
8
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 173
DTC P0410
DTC P0410
AIR system problem
•
The PCM monitors the front HO2S output current when the AIR control is
operating. If the output current is more than the specification, the PCM determines
that there is an AIR system problem.
Diagnostic support note
DETECTION
CONDITION
•
•
This is an intermittent monitor (AIR system).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction
condition during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
AIR system malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 174
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
VERIFY RELATED PENDING CODE OR
STORED DTC
Go to the appropriate DTC inspection.
Yes
(See DTC TABLE .)
3
•
•
•
Turn the ignition switch off, then to the ON
position (Engine off).
Verify the related PENDING CODE or
No Go to the next step.
stored DTCs.
Are other DTCs present?
IDENTIFY TRIGGER DTC FOR FREEZE
FRAME DATA
4
•
Is DTC P0410 on FREEZE FRAME
DATA?
Yes Go to the next step.
No
(See DTC TABLE .)
INSPECT AIR SYSTEM OPERATION
•
5
Yes
Repair or replace the malfunctioning part
according to the inspection results.
Then go to the next step.
(See Secondary Air Injection (AIR) System
Inspection .)
•
6
Perform the "AIR System Inspection".
Go to the FREEZE FRAME DATA DTC
inspection.
Is there any malfunction?
No Go to the next step.
Replace the PCM, then go to the next step.
VERIFY TROUBLESHOOTING OF DTC P0410
Yes
COMPLETED
(See PCM REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 175
•
•
•
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Soak the vehicle in a place that is at a
temperature of approx. 25 °C {77 °F} for
more than 6 hours .
Start the engine.
Verify the SAIR_EVAL PID to Yes.
If not, soak the vehicle again.
Is the PENDING CODE same as the DTC
present?
No Go to the next step.
Go to the applicable DTC inspection.
VERIFY AFTER REPAIR PROCEDURE
Yes
•
7
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 176
DTC P0420
DTC P0420
Catalyst system efficiency below threshold
•
The PCM monitors the input voltage from the rear HO2S and the front HO2S output
current when the following conditions are met. If the input voltage change is
extremely large compared to the output current change, the PCM determines that the
catalyst system has deteriorated.
MONITORING CONDITION
DETECTION
CONDITION
ECT: more than 70 °C {158 °F}
Catalyst converter temperature: more than 400 °C {752 °F}
Engine speed: 1,500
 3,500 rpm
LOAD: 20
 50% (maximum calculated load value varies depending on
engine speed.)
Time with purge control system does not operate: more than 20 s
Diagnostic support note
•
•
This is an intermittent monitor (Catalyst).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
•
•
•
Looseness of front HO2S
Leakage exhaust gas
Purge control system malfunction
VSS malfunction
ECT malfunction
Eccentric shaft position sensor malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 177
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
3
Verify related Service Bulletins
and/or on-line repair information
availability.
Is any related repair information
available?
•
•
•
•
6
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Yes Go to the next step.
Tighten the front HO2S, then go to Step 10.
Inspect the front HO2S for looseness. No
(See FRONT HEATED OXYGEN SENSOR
Is it normal?
(HO2S) REMOVAL/INSTALLATION .)
INSPECT EXHAUST SYSTEM FOR
EXHAUST GAS LEAKAGE
5
Yes
VERIFY RELATED PENDING CODE OR
Go to the applicable DTC inspection.
STORED DTC
Yes
(See DTC TABLE .)
• Turn the ignition switch off, then to
the ON position (Engine off).
• Verify the related PENDING CODE
No Go to the next step.
or stored DTCs.
• Are other DTCs present?
INSPECT INSTALLATION OF FRONT
HO2S
4
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
Visually inspect exhaust gas leakage
in the exhaust system.
Is there exhaust gas leakage?
Yes
Repair or replace the malfunctioning part, then go to
the next step.
No Go to the next step.
Yes Go to the next step.
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Engine Diagnostics & Control
Page 178
INSPECT PURGE CONTROL SYSTEM
OPERATION
•
Perform the "Purge Control System
Operation Inspection".
(See Purge Control System
Inspection .)
•
7
•
•
•
Then go to Step 10.
Does purge control system operate
properly?
VERIFY CURRENT INPUT SIGNAL
STATUS OF VSS
•
No
Connect the WDS or equivalent to
the DLC-2.
Start the engine.
Access the VSS PID.
Inspect the VSS PID.
Yes Go to the next step.
No
Is the PID normal?
INSPECT ECT SENSOR
•
Inspect the ECT sensor.
(See ENGINE COOLANT
TEMPERATURE (ECT) SENSOR
INSPECTION .)
8
•
Inspect the malfunctioning part according to the
inspection results.
Then go to Step 10.
(See PCM INSPECTION .)
•
Repair or replace malfunctioning part according to
the inspection results.
Replace the ECT sensor, then go to Step 10.
Yes
(See ENGINE COOLANT TEMPERATURE (ECT)
SENSOR REMOVAL/INSTALLATION .)
No Go to the next step.
Is there any malfunction ?
Replace the eccentric shaft position sensor, then go
to the next step
INSPECT ECCENTRIC SHAFT
POSITION SENSOR
Yes
•
9
(See ECCENTRIC SHAFT
POSITION SENSOR INSPECTION
.)
•
10
Inspect the eccentric shaft position
sensor.
(See ECCENTRIC SHAFT POSITION SENSOR
REMOVAL/INSTALLATION .)
No Go to the next step.
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0420 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 179
•
•
•
Make sure to reconnect all
disconnected connectors.
Clear the DTC from the PCM
memory using the WDS or
equivalent.
Perform the DRIVE MODE 1 and 3.
No Go to the next step.
(See OBD-II DRIVE MODE .)
•
Is the PENDING CODE same as the
DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
11
Perform the "AFTER REPAIR
PROCEDURE".
(See DTC TABLE .)
(See AFTER REPAIR PROCEDURE
.)
No DTC troubleshooting completed.
•
Are any DTCs present?
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Engine Diagnostics & Control
Page 180
DTC P0441
DTC P0441
EVAP system incorrect purge flow
•
The PCM monitors the purge line vacuum, when the following conditions are met.
If the vacuum between the charcoal canister and the intake manifold does not reach
the specification, the PCM determines that the EVAP system purge flow is
incorrect.
MONITORING CONDITION
DETECTION
CONDITION
Vehicle speed: 25
49 km/h {16
30 mph}
Engine speed: 1,200
3,000 rpm
Throttle valve opening angle: 0
31.7 % (changes by engine speed)
Diagnostic support note
•
•
This is an intermittent monitor (EVAP system).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
•
•
•
Purge solenoid valve malfunction
Clogging EVAP system
Leakage EVAP system
EVAP system leak detection pump malfunction
APP sensor malfunction
Eccentric shaft position sensor malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 181
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins
and/or on-line repair information
availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE OR
STORED DTC
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Go to the DTC P0443 inspection.
Yes
(See DTC P0443 .)
3
•
•
•
Turn the ignition switch off, then to
the ON position (Engine off).
Verify the related PENDING CODE
or stored DTCs.
Is the DTC P0443 also present?
CLASSIFY LEAK CONCERN OR
BLOCKAGE CONCERN
•
4
Yes Go to Step 6.
Perform the "Evaporative System
Test".
(See Evaporative System Test .)
•
No Go to the next step.
No Go to the next step.
Is test result failed?
Replace the purge solenoid valve, then go to the
Step 13.
INSPECT PURGE SOLENOID VALVE
5
•
Inspect the purge solenoid valve.
Yes
(See INTAKE-AIR SYSTEM HOSE ROUTING
DIAGRAM .)
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Engine Diagnostics & Control
Page 182
Inspect the following parts for clogging.
(See PURGE SOLENOID VALVE
INSPECTION .)
•
•
Is there any malfunction?
No
•
•
Vacuum hoses between intake manifold to
charcoal canister
Catch tank
Charcoal canister
Repair or replace the malfunction part, then go to
Step 13.
LOCATE LEAK POINT
•
Yes
Repair or replace the malfunctioning part, then go
to Step 13.
Inspect for the following for leakage
using ultrasonic leak detector:
(See Evaporative System Test .)
6
Charcoal canister
Catch tank
Fuel filler cap
EVAP hoses and pipes
Fuel tank
Is leakage found?
•
INSPECT EVAPORATIVE SYSTEM
OPERATION
•
•
7
•
Connect all disconnected connectors
and hoses.
Place the clamp on the hose between
EVAP system leak detection pump
and air filter.
Perform the "Evaporative System
Test".
No Go to the next step.
Yes Go to Step 9.
No Go to the next step.
(See Evaporative System Test .)
•
Is test result failed (red light turns
on)?
Replace the EVAP system leak detection pump,
then go to Step 13.
INSPECT FOR EVAP SYSTEM LEAK
DETECTION PUMP LEAKAGE
8
•
•
Remove the clamp.
Perform the "Evaporative System
Test"
Yes
(See EVAPORATIVE EMISSION (EVAP)
CONTROL SYSTEM
REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 183
Test".
(See Evaporative System Test .)
No Go to the next step.
•
Is test result failed (red light turns
on)?
INSPECT INSTALLATION OF FUEL
PUMP UNIT
9
•
•
Inspect the fuel pump unit for
damage, insufficient sealing or
poorly.
Is it normal?
INSPECT EVAPORATIVE SYSTEM
OPERATION
•
10
Yes Go to the next step.
No
Repair or replace the malfunctioning part, then go
to the next step.
Leakage still exists.
Yes
Perform the "Evaporative System
Test".
Repair or replace the leak point, then go to the next
step.
(See Evaporative System Test .)
•
Is test result failed (red light turns
on)?
No Go to the next step
INSPECT APP SENSOR
•
Inspect the APP sensor.
(See ACCELERATOR PEDAL
POSITION (APP) SENSOR
INSPECTION .)
11
•
Replace the APP sensor, then go to Step 13.
Yes
(See ACCELERATOR PEDAL
REMOVAL/INSTALLATION .)
No Go to the next step.
Is there any malfunction ?
Replace the eccentric shaft position sensor, then go
to the next step.
INSPECT ECCENTRIC SHAFT POSITION
SENSOR
Yes
•
12
Inspect the eccentric shaft position
sensor.
(See ECCENTRIC SHAFT
POSITION SENSOR INSPECTION
.)
•
(See ECCENTRIC SHAFT POSITION SENSOR
REMOVAL/INSTALLATION .)
No Go to the next step.
Is there any malfunction?
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Engine Diagnostics & Control
Page 184
VERIFY TROUBLESHOOTING OF DTC
P0441 COMPLETED
•
•
13
•
Make sure to reconnect all
disconnected connectors.
Clear the DTC from the PCM
memory using the WDS or
equivalent.
Perform the DRIVE MODE 1 and 6.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
No Go to the next step.
(See OBD-II DRIVE MODE )
•
Is the PENDING CODE same as the
DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
14
Perform the "After Repair
Procedure".
(See DTC TABLE .)
(See AFTER REPAIR PROCEDURE
.)
No Troubleshooting completed.
•
Is there any DTC present?
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Engine Diagnostics & Control
Page 185
DTC P0442
DTC P0442
EVAP system leak detected (small leak)
•
The PCM monitors the pump load current (EVAP line pressure) when the specified
period has passed after EVAP system is sealed when the following conditions are
met. If the pump load current does not reach the reference current value within the
specified period, the PCM determines that the EVAP system has small leak.
MONITORING CONDITION
DETECTION
CONDITION
BARO: more than 72 kPa {542 mmHg, 21.33 inHg}
IAT: 5
40 °C {41
104 °F}
Fuel tank level: 15
85 %
Battery voltage: 11.0
14.6 V
Ignition switch: OFF
Diagnostic support note
•
•
This is an intermittent monitor (EVAP system).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
Leakage EVAP system
Purge solenoid valve malfunction
EVAP system leak detection pump malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 186
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins
and/or on-line repair information
availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE OR
STORED DTC
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Go to the appropriate DTC inspection.
Yes
(See DTC TABLE .)
3
•
•
•
Turn the ignition switch off, then to
the ON position (Engine off).
Verify the related PENDING CODE
or stored DTCs.
Are other DTCs present?
CLASSIFY INTERMITTENT CONCERN
OR CONTINUOUS CONCERN
•
4
Perform the "Evaporative System
Test".
(See Evaporative System Test .)
•
5
No Go to the next step.
Yes Go to the next step.
Intermittent concern exists.
Perform the "INTERMITTENT CONCERNS
No TROUBLESHOOTING".
(See INTERMITTENT CONCERN
TROUBLESHOOTING .)
Is test result failed (red light turn on)?
LOCATE LEAK POINT
Yes
Repair or replace the malfunctioning part, then go
to Step 10.
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Engine Diagnostics & Control
Page 187
•
Inspect the following for leakage
using ultrasonic leak detector:
(See Evaporative System Test .)
Charcoal canister
Catch tank
Fuel-filler cap
EVAP hoses and pipes
Fuel tank
Is leakage found?
•
No Go to the next step.
Replace the purge solenoid valve, then go to Step
10.
INSPECT PURGE SOLENOID VALVE
•
6
Inspect the purge solenoid valve.
(See INTAKE-AIR SYSTEM HOSE ROUTING
DIAGRAM .)
(See PURGE SOLENOID VALVE
INSPECTION .)
•
Is there any malfunction?
INSPECT EVAPORATIVE SYSTEM
OPERATION
•
•
7
Yes
•
Connect all disconnected connectors
and hoses.
Place the clamp on the hose between
EVAP system leak detection pump
and air filter.
Perform the "Evaporative System
Test".
No Go to the next step.
Yes Go to Step 9.
No Go to the next step.
(See Evaporative System Test .)
•
Is test result failed (red light turns
on)?
Replace the EVAP system leak detection pump,
then go to Step 10.
INSPECT FOR EVAP SYSTEM LEAK
DETECTION PUMP LEAKAGE
•
•
8
Remove the clamp.
Perform the "Evaporative System
Test".
Yes
(See EVAPORATIVE EMISSION (EVAP)
CONTROL SYSTEM
REMOVAL/INSTALLATION .)
(See Evaporative System Test .)
•
Is test result failed (red light turns
on)?
No Go to the next step.
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Engine Diagnostics & Control
Page 188
INSPECT INSTALLATION OF FUEL
PUMP UNIT
9
•
•
Inspect the fuel pump unit for
damage, insufficient sealing or
poorly.
Is it normal?
VERIFY TROUBLESHOOTING OF DTC
P0442 COMPLETED
Yes Go to the next step.
No
Repair or replace the malfunctioning part, then go
to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
10
•
Make sure to reconnect all
disconnected connectors.
Clear the DTC from the PCM
memory using the WDS or
equivalent.
Perform the DRIVE MODE 1 and 6.
No Go to the next step.
(See OBD-II DRIVE MODE )
•
Is the PENDING CODE same as the
DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
11
Perform the "After Repair
Procedure".
(See DTC TABLE .)
(See AFTER REPAIR PROCEDURE
.)
No Troubleshooting completed.
•
Is there any DTC present?
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Engine Diagnostics & Control
Page 189
DTC P0443
DTC P0443
Purge solenoid valve circuit problem
•
•
DETECTION
CONDITION
Diagnostic support note
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
The PCM monitors the purge solenoid valve control voltage when the PCM turns
the purge solenoid valve off. If the control voltage is less than 5.8 V , the PCM
determines that the purge solenoid valve control circuit voltage is low.
The PCM monitors the purge solenoid valve control voltage when the PCM turns
the purge solenoid valve on. If the control voltage is more than 11.5 V , the PCM
determines that the purge solenoid valve control circuit voltage is high.
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Purge solenoid valve malfunction
Connector or terminal malfunction
Open circuit in wiring harness between main relay terminal C and purge solenoid
valve terminal A
Short to GND in wiring harness between main relay terminal C and purge solenoid
valve terminal A
Open circuit in wiring harness between purge solenoid valve terminal B and PCM
terminal 2P
Short to power supply in wiring harness between purge solenoid valve terminal B
and PCM terminal 2P
Short to GND in wiring harness between purge solenoid valve terminal B and PCM
terminal 2P
PCM malfunction
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Engine Diagnostics & Control
Page 190
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Engine Diagnostics & Control
Page 191
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT PURGE SOLENOID VALVE
CONNECTOR FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the purge solenoid valve
connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT PURGE SOLENOID VALVE
POWER CIRCUIT FOR OPEN CIRCUIT OR
SHORT TO GND
4
•
•
•
•
•
•
Repair or replace the terminal, then go to Step
10.
No Go to the next step.
Yes Go to the next step.
Turn the ignition switch to the ON position
Repair or replace the wiring harness for a
(Engine off).
No possible open circuit or short to GND, then go
Measure the voltage between purge
to Step 10.
solenoid valve terminal A (wiring harnessside) and body GND.
Is the voltage B+ ?
INSPECT PURGE SOLENOID VALVE
CONTROL CIRCUIT FOR SHORT TO GND
5
Yes
Yes
Repair or replace harness for short to GND,
then go to Step 10.
Turn the ignition switch off.
Inspect for continuity between purge
solenoid valve terminal B (wiring harness- No Go to the next step.
side) and body GND.
Is there continuity?
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Engine Diagnostics & Control
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INSPECT PURGE SOLENOID VALVE
CONTROL CIRCUIT FOR SHORT TO POWER
SUPPLY
6
•
•
•
Yes
Turn the ignition switch to the ON position
(Engine off).
Measure the voltage between purge
No Go to the next step.
solenoid valve terminal B (wiring harnessside) and body GND.
Is the voltage B+ ?
Replace the purge solenoid valve, then go to
Step 10.
INSPECT PURGE SOLENOID VALVE
•
7
Inspect the purge solenoid valve.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
8
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT PURGE SOLENOID VALVE
CONTROL CIRCUIT FOR OPEN CIRCUIT
9
•
•
•
10
Yes
(See INTAKE-AIR SYSTEM HOSE
ROUTING DIAGRAM .)
(See PURGE SOLENOID VALVE
INSPECTION .)
•
Repair or replace harness for short to power
supply, then go to Step 10.
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
10.
No Go to the next step.
Yes Go to the next step.
Turn the ignition switch off.
Inspect for continuity between purge
solenoid valve terminal B (wiring harness- No Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
side) and PCM terminal 2P (wiring
harness-side).
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC P0443
Replace the PCM, then go to the next step.
COMPLETED
Yes
(See PCM REMOVAL/INSTALLATION .)
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
• Start the engine.
• Is the PENDING CODE same as DTC
present?
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VERIFY AFTER REPAIR PROCEDURE
•
11
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
Go to the applicable DTC inspection.
Yes
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
Notes:
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Engine Diagnostics & Control
Page 194
DTC P0446
DTC P0446
EVAP system vent control circuit problem
•
DETECTION
CONDITION
Diagnostic support note
•
•
•
•
•
POSSIBLE
CAUSE
The PCM monitors pump load current (EVAP line pressure) when the evaporative
leak monitor is operating. If the decrease in pump load current is less than the
specification after the reference current value has been obtained, the PCM
determines change over valve in EVAP system leak detection pump has a
malfunction.
•
•
•
•
This is an intermittent monitor (EVAP system).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Change over valve malfunction (in EVAP system leak detection pump.)
Connector or terminal malfunction
Short to power supply in wiring harness between the EVAP system leak detection
pump terminal C and PCM terminal 4H
PCM malfunction
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Page 196
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT EVAP SYSTEM LEAK
DETECTION PUMP CONNECTOR FOR
POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the EVAP system leak
detection pump connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT EVAP SYSTEM LEAK
DETECTION PUMP CIRCUIT FOR SHORT
TO POWER SUPPLY
4
•
•
•
5
Turn the ignition switch to the ON
position (engine OFF).
Measure the voltage between EVAP
system leak detection pump terminal C
(wiring harness-side) and body GND.
Is the voltage B+ ?
INSPECT CHANGE OVER VALVE (IN
EVAP SYSTEM LEAK DETECTION PUMP)
•
Inspect change over valve (in EVAP
system leak detection pump).
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
7.
No Go to the next step.
Repair or replace the wiring harness for a
Yes possible short to power supply, then go to Step
7.
No Go to the next step.
Replace the EVAP system leak detection pump,
then go to Step 7.
Yes
(See EVAPORATIVE EMISSION (EVAP)
CONTROL SYSTEM
REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 197
system leak detection pump).
(See EVAPORATIVE EMISSION
(EVAP) SYSTEM LEAK DETECTION
PUMP INSPECTION .)
•
Is there any malfunction?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
6
•
•
•
•
No Go to the next step.
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0446 COMPLETED
Yes
Repair or replace the terminal, then go to the
next step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
7
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 6.
(See OBD-II DRIVE MODE )
•
No Go to the next step.
Is the PENDING CODE same as the
DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
8
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 198
DTC P0455
DTC P0455
EVAP system leak detected (large leak)
•
The PCM monitors the pump load current (EVAP line pressure) when the specified
period has passed after EVAP system is sealed when the following conditions are
met. If the pump load current does not reach the reference current value within the
specified period, the PCM determines that the EVAP system has large leak.
MONITORING CONDITION
DETECTION
CONDITION
BARO: more than 72 kPa {542 mmHg, 21.33 inHg}
IAT: 5
40 °C {41
104 °F}
Fuel tank level: 15
85 %
Battery voltage: 11.0
14.6 V
Ignition switch: OFF
Diagnostic support note
•
•
This is an intermittent monitor (EVAP system).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
•
•
•
•
•
Loose, missing or defective fuel-filler cap
Purge solenoid valve malfunction
EVAP system leak detection pump malfunction
Fuel tank malfunction
Poor connection or damaged vacuum hose
EVAP hose damaged or loose
Catch tank malfunction
Charcoal canister malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 199
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE OR
STORED DTC
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Go to the appropriate DTC inspection.
Yes
(See DTC TABLE .)
3
•
•
•
Turn the ignition switch off, then to the
ON position (Engine off).
Verify the related PENDING CODE or
stored DTCs.
Are other DTCs present?
No Go to the next step.
CLASSIFY INTERMITTENT CONCERN OR Yes Go to the next step.
CONTINUOUS CONCERN
Intermittent concern exists.
4
•
Perform the "Evaporative System Test".
(See Evaporative System Test .)
•
Is test result failed (red light turn on)?
INSPECT FUEL-FILLER CAP
•
•
5
(See INTERMITTENT CONCERN
TROUBLESHOOTING .)
Yes Go to the next step.
Verify the fuel-filler cap is not either
disconnected, loose or damaged.
Is it normal?
NOTE:
•
Perform the "INTERMITTENT CONCERNS
No TROUBLESHOOTING".
No Tighten the fuel-filler cap, then go to Step 17.
When the fuel-filler caps other than
OEM caps are attached, it is considered
malfunction.
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Engine Diagnostics & Control
Page 200
INSPECT PURGE SOLENOID VALVE
•
6
Inspect the purge solenoid valve.
Replace the purge solenoid valve, then go to
Step 17.
Yes
(See INTAKE-AIR SYSTEM HOSE ROUTING
DIAGRAM .)
(See PURGE SOLENOID VALVE
INSPECTION .)
•
Is there any malfunction?
No Go to the next step.
Replace the EVAP system leak detection pump,
then go to Step 17.
INSPECT CHANGE OVER VALVE (IN
EVAP SYSTEM LEAK DETECTION PUMP)
•
7
Inspect the EVAP system leak detection
pump inspection.
(See EVAPORATIVE EMISSION
(EVAP) SYSTEM LEAK DETECTION
PUMP INSPECTION .)
•
8
9
•
•
Disconnect the fuel tank side vacuum
hose at charcoal canister.
Apply the vacuum 1.7 kPa {13 mmHg,
0.5 inHg} to the disconnected vacuum
hose using the vacuum pump.
Does vacuum hold for minimum of 2
min ?
INSPECT VACUUM HOSE FOR POOR
CONNECTION
10
•
•
11
Yes
Repair or replace the malfunctioning part, then
go to Step 17.
No Go to the next step.
Is test result failed?
INSPECT EVAP LEAKAGE FROM FUEL
PUMP TO CHARCOAL CANISTER
•
No Go to the next step.
Perform the "Evaporative System Test".
(See Evaporative System Test .)
•
(See EVAPORATIVE EMISSION (EVAP)
CONTROL SYSTEM
REMOVAL/INSTALLATION .)
Is there any malfunction?
INSPECT EVAP SYSTEM
•
Yes
Yes Go to Step 13.
No Go to the next step.
Yes Go to the next step.
Connect the vacuum hose correctly, then go to
Inspect the vacuum hose installation
Step 17.
condition between fuel tank and charcoal No
canister.
(See INTAKE-AIR SYSTEM HOSE ROUTING
Is it normal?
DIAGRAM .)
Yes Go to the next step.
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Engine Diagnostics & Control
Page 201
INSPECT INSTALLATION OF FUEL PUMP
UNIT
•
•
•
Remove fuel tank.
Inspect the fuel pump unit for damage,
insufficient sealing or poorly.
Is it normal?
No
INSPECT FUEL TANK
•
12
Inspect the fuel tank.
Is there any malfunction?
INSPECT EVAP LEAKAGE FROM
CHARCOAL CANISTER TO PURGE
SOLENOID VALVE
•
•
•
Yes
(See FUEL TANK
REMOVAL/INSTALLATION .)
•
•
No Go to the next step.
Yes Go to Step 17.
Disconnect the purge solenoid valve side
vacuum hose at charcoal canister.
Apply the vacuum 3.3 kPa {25 mmHg, No Go to the next step.
1.0 inHg} to disconnected vacuum hose
using vacuum pump.
Does vacuum hold for minimum of 2
min ?
INSPECT VACUUM HOSE FOR POOR
CONNECTION
14
Replace the fuel tank, then go to Step 17.
(See FUEL TANK INSPECTION .)
•
13
Repair or replace the malfunctioning part, then
go to Step 17.
Inspect the vacuum hose installation
condition between charcoal canister and
purge solenoid valve.
Is it normal?
Yes Go to the next step.
Connect the vacuum hose correctly, then go to
Step 17.
No
(See INTAKE-AIR SYSTEM HOSE ROUTING
DIAGRAM .)
INSPECT CATCH TANK
•
15
Inspect the catch tank.
Replace the catch tank, then go to Step 17.
Yes
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
(See CATCH TANK INSPECTION .)
•
Is there any malfunction?
No Go to the next step.
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Page 202
INSPECT CHARCOAL CANISTER
•
16
Inspect the charcoal canister.
Replace the charcoal canister, then go to the next
step.
Yes
(See CHARCOAL CANISTER
INSPECTION .)
•
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0455 COMPLETED
(See EVAPORATIVE EMISSION (EVAP)
CONTROL SYSTEM
REMOVAL/INSTALLATION .)
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
17
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 6.
(See OBD-II DRIVE MODE )
•
No Go to the next step.
Is the PENDING CODE same as the
DTC present?
Go to the applicable DTC inspection.
VERIFY AFTER REPAIR PROCEDURE
Yes
•
18
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 203
DTC P0456
DTC P0456
EVAP system leak detected (very small leak)
•
The PCM monitors the pump load current (EVAP line pressure) when a specified
period has passed after EVAP system is sealed after ignition switch is turned off. If
the pump load current does not reach the reference load value or rate of the load
increase lower than specified within a specified period, the PCM determines that the
EVAP system has a very small leak.
MONITORING CONDITION
DETECTION
CONDITION
BARO: more than 72 kPa {542 mmHg, 21.33 inHg}
IAT: 5
40 °C {41
104 °F}
Fuel tank level: 15
85 %
Battery voltage: 11.0
14.6 V
Ignition switch: OFF
Diagnostic support note
•
•
This is an intermittent monitor (EVAP system).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
Purge solenoid valve malfunction
Leakage EVAP system
EVAP system leak detection pump malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 204
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins
and/or on-line repair information
availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE OR
STORED DTC
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Go to the appropriate DTC inspection.
Yes
(See DTC TABLE .)
3
•
•
•
Turn the ignition switch off, then to
the ON position (Engine off).
Verify the related PENDING CODE
or stored DTCs.
Are other DTCs present?
CLASSIFY INTERMITTENT CONCERN
OR CONTINUOUS CONCERN
•
4
Perform the "Evaporative System
Test".
(See Evaporative System Test .)
•
5
No Go to the next step.
Yes Go to the next step.
Intermittent concern exists.
Perform the "INTERMITTENT CONCERNS
No TROUBLESHOOTING".
(See INTERMITTENT CONCERN
TROUBLESHOOTING .)
Is test result failed (red light turn on)?
LOCATE LEAK POINT
Yes
Repair or replace the malfunctioning part, then go
to Step 10.
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Engine Diagnostics & Control
Page 205
•
Inspect the following for leakage
using ultrasonic leak detector:
(See Evaporative System Test .)
Charcoal canister
Catch tank
Fuel-filler cap
EVAP hoses and pipes
Fuel tank
Is leakage found?
•
No Go to the next step.
Replace the purge solenoid valve, then go to Step
10.
INSPECT PURGE SOLENOID VALVE
•
6
Inspect the purge solenoid valve.
(See INTAKE-AIR SYSTEM HOSE ROUTING
DIAGRAM .)
(See PURGE SOLENOID VALVE
INSPECTION .)
•
Is there any malfunction?
INSPECT EVAPORATIVE SYSTEM
OPERATION
•
•
7
Yes
•
Connect all disconnected connectors
and hoses.
Place the clamp on the hose between
EVAP system leak detection pump
and air filter.
Perform the "Evaporative System
Test".
No Go to the next step.
Yes Go to Step 9.
No Go to the next step.
(See Evaporative System Test .)
•
Is test result failed (red light turns
on)?
Replace the EVAP system leak detection pump,
then go to Step 10.
INSPECT FOR EVAP SYSTEM LEAK
DETECTION PUMP LEAKAGE
•
•
8
Remove the clamp.
Perform the "Evaporative System
Test".
Yes
(See EVAPORATIVE EMISSION (EVAP)
CONTROL SYSTEM
REMOVAL/INSTALLATION .)
(See Evaporative System Test .)
•
Is test result failed (red light turns
on)?
No Go to the next step.
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Engine Diagnostics & Control
Page 206
INSPECT INSTALLATION OF FUEL
PUMP UNIT
9
•
•
Inspect the fuel pump unit for
damage, insufficient sealing or
poorly.
Is it normal?
VERIFY TROUBLESHOOTING OF DTC
P0456 COMPLETED
Yes Go to the next step.
No
Repair or replace the malfunctioning part, then go
to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
10
•
Make sure to reconnect all
disconnected connectors.
Clear the DTC from the PCM
memory using the WDS or
equivalent.
Perform the DRIVE MODE 1 and 6.
No Go to the next step.
(See OBD-II DRIVE MODE )
•
Is the PENDING CODE same as the
DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
11
Perform the "AFTER REPAIR
PROCEDURE".
(See DTC TABLE .)
(See AFTER REPAIR PROCEDURE
.)
No DTC troubleshooting completed.
•
Are any DTCs present?
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Engine Diagnostics & Control
Page 207
DTC P0461
DTC P0461
Fuel gauge sender unit circuit range/performance problem
•
The PCM monitors the fuel tank level difference before and after the PCMcalculated fuel consumption has reached more than 21 L {22.2 US qt, 18.5 Imp
qt} . If the difference is less than 5 % , the PCM determines that there is a fuel
gauge sender unit circuit range/performance problem.
Diagnostic support note
DETECTION
CONDITION
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
Fuel gauge sender unit malfunction
Instrument cluster malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 208
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins
and/or on-line repair information
availability.
Is any related repair information
available?
INSPECT INSTRUMENT CLUSTER
•
3
Yes
4
Yes
5
Repair or replace the malfunctioning part, then go
to Step 5.
No Go to the next step.
Is there any malfunction?
Replace the fuel gauge sender unit, then go to the
next step.
Inspect the fuel gauge sender unit.
Yes
(See FUEL GAUGE SENDER UNIT
REMOVAL/INSTALLATION .)
(See FUEL GAUGE SENDER UNIT
INSPECTION .)
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
INSPECT FUEL GAUGE SENDER UNIT
•
•
Perform the "INSTRUMENT
CLUSTER INPUT/OUTPUT
CHECK MODE".
(See INSTRUMENT CLUSTER
INPUT/OUTPUT CHECK MODE .)
•
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
Is there any malfunction?
VERIFY AFTER REPAIR PROCEDURE
Replace the PCM, then go to the next step.
No
(See PCM REMOVAL/INSTALLATION .)
Go to the applicable DTC inspection.
Yes
(See DTC TABLE .)
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Engine Diagnostics & Control
Page 209
•
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE No DTC troubleshooting completed.
.)
•
Are any DTCs present?
Notes:
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Engine Diagnostics & Control
Page 210
DTC P0462
DTC P0462
Fuel gauge sender unit circuit low input
•
The PCM monitors the fuel tank level and input voltage from the fuel gauge sender
unit when the engine is running. If the input voltage is less than 2.5 V and fuel tank
level is full, the PCM determines that the fuel gauge sender unit circuit input
voltage is low.
Diagnostic support note
DETECTION
CONDITION
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
Fuel gauge sender unit malfunction
Instrument cluster malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 211
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT INSTRUMENT CLUSTER
•
3
Yes
4
Yes
5
Repair or replace the malfunctioning part, then go
to Step 5.
No Go to the next step.
Is there any malfunction?
Replace the fuel gauge sender unit, then go to the
next step.
Inspect the fuel gauge sender unit.
Yes
(See FUEL GAUGE SENDER UNIT
REMOVAL/INSTALLATION .)
(See FUEL GAUGE SENDER UNIT
INSPECTION .)
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
INSPECT FUEL GAUGE SENDER UNIT
•
•
Perform the "INSTRUMENT
CLUSTER INPUT/OUTPUT CHECK
MODE".
(See INSTRUMENT CLUSTER
INPUT/OUTPUT CHECK MODE .)
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0462 COMPLETED
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 212
•
•
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Drive the vehicle under the FREEZE
FRAME DATA condition.
Is the PENDING CODE same as DTC
present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
6
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 213
DTC P0463
DTC P0463
Fuel gauge sender unit circuit high input
•
The PCM monitors the fuel tank level and input voltage from the fuel gauge sender
unit when the engine is running. If the input voltage is more than 2.5 V and fuel
tank level is empty, the PCM determines that the fuel gauge sender unit circuit
input voltage is high.
Diagnostic support note
DETECTION
CONDITION
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
Fuel gauge sender unit malfunction
Instrument cluster malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Page 214
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT INSTRUMENT CLUSTER
•
3
Yes
4
Yes
5
Repair or replace the malfunctioning part, then go
to Step 5.
No Go to the next step.
Is there any malfunction?
Replace the fuel gauge sender unit, then go to the
next step.
Inspect the fuel gauge sender unit.
Yes
(See FUEL GAUGE SENDER UNIT
REMOVAL/INSTALLATION .)
(See FUEL GAUGE SENDER UNIT
INSPECTION .)
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
INSPECT FUEL GAUGE SENDER UNIT
•
•
Perform the "INSTRUMENT
CLUSTER INPUT/OUTPUT CHECK
MODE".
(See INSTRUMENT CLUSTER
INPUT/OUTPUT CHECK MODE .)
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0463 COMPLETED
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
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Page 215
•
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Drive the vehicle under the FREEZE
FRAME DATA condition.
Is the PENDING CODE same as DTC
present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
6
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Page 216
DTC P0480
DTC P0480
Cooling fan No.1 control circuit problem
•
•
DETECTION
CONDITION
Diagnostic support note
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
The PCM monitors the cooling fan relay No.1 control voltage when the PCM turns
the cooling fan relay No.1 off. If the control voltage is low, the PCM determines
that the cooling fan No.1 control circuit voltage is low.
The PCM monitors the cooling fan relay No.1 control voltage when the PCM turns
the cooling fan relay No.1 on. If the control voltage is high, the PCM determines
that the cooling fan No.1 control circuit voltage is high.
•
•
•
•
•
This is a continuous monitor (Other).
The MIL does not illuminate.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Cooling fan relay No.1 malfunction
Connector or terminal malfunction
Open circuit in wiring harness between main relay terminal C and cooling fan
relay No.1 terminal A
Short to GND in wiring harness between main relay terminal C and cooling fan
relay No.1 terminal A
Open circuit in wiring harness between cooling fan relay No.1 terminal E and
PCM terminal 5X
Short to power supply in wiring harness between cooling fan relay No.1 terminal E
and PCM terminal 5X
Short to GND in wiring harness between cooling fan relay No.1 terminal E and
PCM terminal 5X
PCM malfunction
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Page 217
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Engine Diagnostics & Control
Page 218
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT COOLING FAN RELAY NO.1
CONNECTOR FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the cooling fan relay No.1
connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT COOLING FAN RELAY NO.1
POWER CIRCUIT FOR OPEN CIRCUIT OR
SHORT TO GND
4
•
•
•
•
•
•
Repair or replace the terminal, then go to Step
10.
No Go to the next step.
Yes Go to the next step.
Turn the ignition switch to the ON position
Repair or replace the wiring harness for a
(Engine off).
No possible open circuit or short to GND, then go
Measure the voltage between cooling fan
to Step 10.
relay No.1 terminal A (wiring harness-side)
and body GND.
Is the voltage B+ ?
INSPECT COOLING FAN RELAY NO.1
CONTROL CIRCUIT FOR SHORT TO GND
5
Yes
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 10.
Turn the ignition switch off.
Inspect for continuity between cooling fan
relay No.1 terminal E (wiring harness-side) No Go to the next step.
and body GND.
Is there continuity?
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Page 219
INSPECT COOLING FAN RELAY NO.1
CONTROL CIRCUIT FOR SHORT TO POWER
SUPPLY
6
•
•
•
Repair or replace the wiring harness for a
Yes possible short to power supply, then go to Step
10.
Turn the ignition switch to the ON position
(Engine off).
Measure the voltage between cooling fan
relay No.1 terminal E (wiring harness-side) No Go to the next step.
and body GND.
Is the voltage B+ ?
INSPECT COOLING FAN RELAY NO.1
•
7
Inspect cooling fan relay No.1.
(See RELAY LOCATION .)
(See RELAY INSPECTION .)
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
8
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT COOLING FAN RELAY NO.1
CONTROL CIRCUIT FOR OPEN CIRCUIT
9
•
•
•
10
Yes
Replace the cooling fan relay No.1, then go to
Step 10.
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
10.
No Go to the next step.
Yes Go to the next step.
Turn the ignition switch off.
Inspect for continuity between cooling fan
relay No.1 terminal E (wiring harness-side) No Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
and PCM terminal 5X (wiring harnessside).
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC P0480
Replace the PCM, then go to the next step.
COMPLETED
Yes
(See PCM REMOVAL/INSTALLATION .)
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
• Start the engine.
• Is the PENDING CODE same as DTC
present?
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Engine Diagnostics & Control
Page 220
VERIFY AFTER REPAIR PROCEDURE
•
11
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
Go to the applicable DTC inspection.
Yes
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 221
DTC P0481
DTC P0481
Cooling fan No.2 control circuit problem
•
•
DETECTION
CONDITION
Diagnostic support note
•
•
•
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
The PCM monitors the cooling fan relay No.2 control voltage when the PCM turns
the cooling fan relay No.2 off. If the control voltage is low, the PCM determines
that the cooling fan No.2 control circuit voltage is low.
The PCM monitors the cooling fan relay No.2 control voltage when the PCM turns
the cooling fan relay No.2 on. If the control voltage is high, the PCM determines
that the cooling fan No.2 control circuit voltage is high.
•
•
•
•
•
•
•
This is a continuous monitor (Other).
The MIL does not illuminate.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Cooling fan relay No.2/No.3 malfunction
Connector or terminal malfunction
Open circuit in wiring harness between main relay terminal C and cooling fan
relay No.2 terminal A
Short to GND in wiring harness between main relay terminal C and cooling fan
relay No.2 terminal A
Open circuit in wiring harness between main relay terminal C and cooling fan
relay No.3 terminal A
Short to GND in wiring harness between main relay terminal C and cooling fan
relay No.3 terminal A
Open circuit in wiring harness between cooling fan relay No.2 terminal E and
PCM terminal 5AD
Short to power supply in wiring harness between cooling fan relay No.2 terminal E
and PCM terminal 5AD
Short to GND in wiring harness between cooling fan relay No.2 terminal E and
PCM terminal 5AD
Open circuit in wiring harness between cooling fan relay No.3 terminal E and
PCM terminal 5AD
Short to power supply in wiring harness between cooling fan relay No.3 terminal E
and PCM terminal 5AD
Short to GND in wiring harness between cooling fan relay No.3 terminal E and
PCM terminal 5AD
PCM malfunction
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Engine Diagnostics & Control
Page 223
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT COOLING FAN RELAY
NO.2/NO.3 CONNECTOR FOR POOR
CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the cooling fan relay
No.2/No.3 connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT COOLING FAN RELAY
NO.2/NO.3 POWER CIRCUIT FOR OPEN
CIRCUIT OR SHORT TO GND
•
•
4
•
5
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
10.
No Go to the next step.
Yes Go to the next step.
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between the
following circuits:
Repair or replace the wiring harness for a
Cooling fan relay No.2 terminal
No possible open circuit or short to GND, then go to
A (wiring harness-side) and body
Step 10.
GND
Cooling fan relay No.3 terminal
A (wiring harness-side) and body
GND
Is the voltage B+ ?
Repair or replace the wiring harness for a
INSPECT COOLING FAN RELAY
Yes
possible short to GND, then go to Step 10.
NO 2/NO 3 CONTROL CIRCUIT FOR SHORT
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Engine Diagnostics & Control
Page 224
NO.2/NO.3 CONTROL CIRCUIT FOR SHORT
TO GND
•
•
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Cooling fan relay No.2 terminal
No Go to the next step.
E (wiring harness-side) and body
GND
Cooling fan relay No.3 terminal
E (wiring harness-side) and body
GND
Is there continuity?
Repair or replace the wiring harness for a
INSPECT COOLING FAN RELAY
NO.2/NO.3 CONTROL CIRCUIT FOR SHORT Yes possible short to power supply, then go to Step
10.
TO POWER SUPPLY
•
•
6
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between the
following circuits:
Cooling fan relay No.2 terminal
E (wiring harness-side) and body No Go to the next step.
GND
Cooling fan relay No.3 terminal
E (wiring harness-side) and body
GND
Is the voltage B+ ?
INSPECT COOLING FAN RELAY
NO.2/NO.3
7
•
Yes
Replace the cooling fan relay No.2/No.3, then
go to Step 10.
(See RELAY LOCATION .)
Inspect the cooling fan relay No.2/No.3.
(See RELAY INSPECTION .)
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
8
•
•
•
•
9
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
10.
No Go to the next step.
Yes Go to the next step.
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Engine Diagnostics & Control
Page 225
INSPECT COOLING FAN RELAY
NO.2/NO.3 CONTROL CIRCUIT FOR OPEN
CIRCUIT
•
•
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Cooling fan relay No.2 terminal
Repair or replace the wiring harness for a
E (wiring harness-side) and PCM No
possible open circuit, then go to the next step.
terminal 5AD (wiring harnessside)
Cooling fan relay No.3 terminal
E (wiring harness-side) and PCM
terminal 5AD (wiring harnessside)
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P0481 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
10
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the PENDING CODE same as DTC
present?
No Go to the next step.
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
11
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 226
DTC P0500
DTC P0500
VSS circuit problem
•
The PCM monitors the input signal from the vehicle speed sensor when the
following conditions are met. If the input signal is less than 3.7 km/h {2.3 mph} ,
the PCM determines that there is a VSS circuit malfunction.
MONITORING CONDITION
DETECTION
CONDITION
Diagnostic support note
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
ABS HU/CM malfunction (with ABS HU/CM)
DSC HU/CM malfunction (with DSC HU/CM)
PCM malfunction
•
•
•
POSSIBLE
CAUSE
Shift lever position: gear is not in neutral position
Engine speed: more than 2,500 rpm
LOAD: more than 40.0 %
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Engine Diagnostics & Control
Page 227
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information
available?
VERIFY CURRENT INPUT SIGNAL STATUS:
IS CONCERN INTERMITTENT OR
CONSTANT?
•
3
•
•
•
•
Connect the WDS or equivalent to the
DLC-2.
Start the engine.
Access the VSS PID.
Read the VSS PID when the vehicle is
driving.
Is the VSS PID normal ?
INSPECT ABS HU/CM OR DSC HU/CM
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Intermittent concern exists.
Perform the "INTERMITTENT CONCERNS
Yes TROUBLESHOOTING".
(See INTERMITTENT CONCERN
TROUBLESHOOTING .)
No Go to the next step.
Yes
Repair or replace the malfunctioning part, then
go to the next step.
For with ABS HU/CM: inspect the ABS
HU/CM.
(See ABS SYSTEM INSPECTION .)
4
•
For with DSC HU/CM: inspect the DSC
HU/CM.
No Go to the next step.
(See DSC SYSTEM INSPECTION .)
•
5
Is there any malfunction ?
VERIFY TROUBLESHOOTING OF DTC
P0500 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 228
•
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Drive the vehicle under the FREEZE
FRAME DATA condition.
Is the PENDING CODE same as the DTC
present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
6
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 229
DTC P0505
DTC P0505
Idle air control system problem
•
DETECTION
CONDITION
POSSIBLE CAUSE
The PCM cannot control idle speed at the target idle speed during the
self-test.
Diagnostic support note
•
•
•
•
The MIL does not illuminate.
PENDING CODE is not available.
FREEZE FRAME DATA is not available.
The DTC is not stored in the PCM memory.
•
•
•
•
Drive-by-wire control system malfunction
A/C cut-off control malfunction
Generator control system malfunction
Intake-air line clogged
Air cleaner clogged
Throttle body clogged
Insufficient compression
Engine oil malfunction
Oil pressure decrease
Metering oil pump malfunction
Metering oil pump control malfunction
Engine malfunction
Fuel line pressure malfunction
PCM malfunction
•
•
•
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Engine Diagnostics & Control
Page 230
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE OR
STORED DTC
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Go to the applicable DTC inspection.
Yes
(See DTC TABLE .)
3
•
•
•
Turn the ignition switch off, then to the
ON position (Engine off).
Verify the related PENDING CODE or
stored DTCs.
Are other DTCs present?
INSPECT DRIVE-BY-WIRE CONTROL
SYSTEM OPERATION
•
4
Yes
Perform the "Drive-by-wire Control
System Inspection".
(See Drive-by-wire Control System
Inspection .)
•
No Go to the next step.
Repair or replace the malfunctioning part
according to the inspection results.
Then go to Step 15.
No Go to the next step.
Is there any malfunction?
INSPECT A/C MAGNETIC CLUTCH
OPERATION
5
NOTE:
Yes
Go to the "NO.24 A/C IS ALWAYS ON OR
A/C COMPRESSOR RUNS
CONTINUOUSLY.".
(See NO.24 A/C IS ALWAYS ON OR A/C
COMPRESSOR RUNS CONTINUOUSLY .)
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Engine Diagnostics & Control
Page 231
•
The following test should be performed
for A/C. Go to the next step for vehicles
without A/C.
•
•
Turn the blower motor switch off.
Is magnetic clutch still on?
No Go to the next step.
6
INSPECT GENERATOR CONTROL SYSTEM Yes Go to the next step.
OPERATION
Repair or replace the wiring harness for a
• Apply the electrical load at idle.
No possible short to power supply, then go to Step
• Is the engine speed increased?
9.
Clean or replace the air cleaner element, then
go to Step 14.
INSPECT AIR CLEANER ELEMENT
7
•
•
Remove the air cleaner element with
engine running.
Is the engine speed increased?
Yes
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
No Go to the next step.
Clean the throttle body passage or replace the
throttle body, then go to Step 14.
INSPECT THROTTLE BODY PASSAGE
•
8
Remove the throttle body.
Yes
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
Is throttle body clogged?
No Go to the next step.
INSPECT ENGINE COMPRESSION
Yes Go to the next step.
•
•
9
Inspect the engine compression.
(See COMPRESSION INSPECTION .)
•
No Go to Step 14.
Is there any malfunction?
Repair or replace the malfunctioning part
according to the inspection results.
INSPECT METERING OIL PUMP
•
10
(See METERING OIL PUMP
INSPECTION .)
Yes
Overhaul or replace the engine.
Then go to Step 15.
Is there any malfunction?
No Go to the next step.
INSPECT ENGINE OIL CONDITION
Yes Go to the next step.
•
11
Inspect the metering oil pump.
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Engine Diagnostics & Control
Page 232
Replace the engine oil.
•
•
Inspect the engine oil condition.
Is the engine oil condition normal?
Inspect the ECT sensor and related harnesses.
No
(See ENGINE COOLANT TEMPERATURE
(ECT) SENSOR INSPECTION .)
Overhaul or replace the engine.
Then go to Step 15.
INSPECT OIL PRESSURE
•
12
Inspect the oil pressure.
Repair or replace the malfunctioning part
according to the inspection results.
Yes
Overhaul or replace the engine.
(See OIL PRESSURE INSPECTION .)
Then go to Step 15.
•
Is there any malfunction?
INSPECT OIL PASSAGE
13
•
•
No Go to the next step.
Inspect and repair for leakage and/or clogged in
oil passage at engine.
Yes
Inspect the oil pipe between metering oil
pump and metering oil nozzle.
Is there any malfunction?
Overhaul or replace the engine.
Then go to Step 15.
Overhaul or replace the engine.
No
Then go to the next step.
INSPECT FUEL LINE PRESSURE
•
14
Perform the "FUEL LINE PRESSURE
INSPECTION".
Replace the fuel pump unit, then go to the next
step.
Yes
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION .)
(See FUEL LINE PRESSURE
INSPECTION .)
•
Is there any malfunction ?
VERIFY TROUBLESHOOTING OF DTC
P0505 COMPLETED
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
15
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the self-test.
Is the same DTC present?
No Go to the next step.
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Engine Diagnostics & Control
Page 233
VERIFY AFTER REPAIR PROCEDURE
•
16
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
Go to the applicable DTC inspection.
Yes
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
Notes:
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Engine Diagnostics & Control
Page 234
DTC P0506
DTC P0506
Idle air control system RPM lower than expected
•
The PCM compares the actual idle speed with the target idle speed when the engine
is running. If the actual idle speed is lower than targeted by 100 rpm , the PCM
determines that the idle air control system RPM is lower than expected.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Drive-by-wire control system malfunction
A/C cut-off control malfunction
Generator control system malfunction
Intake-air line clogged
Air cleaner clogged
Throttle body clogged
Purge solenoid valve malfunction
IAT sensor malfunction
ECT sensor malfunction
APP sensor malfunction
Eccentric shaft position sensor malfunction
Insufficient compression
Engine oil malfunction
Oil pressure decrease
Metering oil pump malfunction
Metering oil pump control malfunction
Engine malfunction
Fuel line pressure malfunction
PCM malfunction
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Engine Diagnostics & Control
Page 235
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE OR
STORED DTC
3
•
•
•
4
5
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Go to the applicable DTC inspection.
Yes
Yes
Perform the "Drive-by-wire Control
System Inspection".
(See Drive-by-wire Control System
Inspection .)
•
Yes
(See DTC TABLE .)
Turn the ignition switch off, then to the
ON position (Engine off).
Verify the related PENDING CODE or
No Go to the next step.
stored DTCs.
Are other DTCs present?
INSPECT DRIVE-BY-WIRE CONTROL
SYSTEM OPERATION
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Repair or replace the malfunctioning part
according to the inspection results.
Then go to Step 20.
No Go to the next step.
Is there any malfunction?
INSPECT A/C MAGNETIC CLUTCH
OPERATION
Go to the "NO.24 A/C IS ALWAYS ON OR A/C
COMPRESSOR RUNS CONTINUOUSLY.".
Yes
(See NO.24 A/C IS ALWAYS ON OR A/C
COMPRESSOR RUNS CONTINUOUSLY .)
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Engine Diagnostics & Control
Page 236
NOTE:
•
The following test should be performed
for A/C. Go to the next step for
No Go to the next step.
vehicles without A/C.
•
•
Turn the blower motor switch off.
Is magnetic clutch still on?
INSPECT GENERATOR CONTROL
SYSTEM OPERATION
6
•
•
Apply the electrical load at idle.
Is the engine speed increased?
Yes Go to the next step.
No
Clean or replace the air cleaner element, then go
to Step 20.
INSPECT AIR CLEANER ELEMENT
7
•
•
Remove the air cleaner element with
engine running.
Is the engine speed increased?
Repair or replace the wiring harness for a possible
short to power supply, then go to Step 20.
Yes
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
No Go to the next step.
Clean the throttle body passage or replace the
throttle body, then go to Step 20.
INSPECT THROTTLE BODY PASSAGE
•
8
Remove the throttle body.
Yes
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
•
Is throttle body clogged?
No Go to the next step.
Replace the purge solenoid valve, then go to Step
20.
INSPECT PURGE SOLENOID VALVE
•
9
Inspect the purge solenoid valve.
(See PURGE SOLENOID VALVE
INSPECTION .)
•
Is there any malfunction?
INSPECT IAT SENSOR
•
10
Inspect the IAT sensor.
(See INTAKE AIR TEMPERATURE
(IAT) SENSOR INSPECTION .)
•
Is there any malfunction ?
Yes
(See INTAKE-AIR SYSTEM HOSE ROUTING
DIAGRAM .)
No Go to the next step.
Replace the MAF/IAT sensor, then go to Step 20.
Yes (See MASS AIR FLOW (MAF)/INTAKE AIR
TEMPERATURE (IAT) SENSOR
REMOVAL/INSTALLATION .)
No Go to the next step.
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Engine Diagnostics & Control
Page 237
INSPECT ECT SENSOR
•
Inspect the ECT sensor.
(See ENGINE COOLANT
TEMPERATURE (ECT) SENSOR
INSPECTION .)
11
•
Replace the ECT sensor, then go to Step 20.
Yes
No Go to the next step.
Is there any malfunction ?
INSPECT APP SENSOR
•
Inspect the APP sensor.
(See ACCELERATOR PEDAL
POSITION (APP) SENSOR
INSPECTION .)
12
•
(See ENGINE COOLANT TEMPERATURE
(ECT) SENSOR REMOVAL/INSTALLATION .)
Replace the APP sensor, then go to Step 20.
Yes
(See ACCELERATOR PEDAL
REMOVAL/INSTALLATION .)
No Go to the next step.
Is there any malfunction ?
Replace the eccentric shaft position sensor, then
go to Step 20.
INSPECT ECCENTRIC SHAFT POSITION
SENSOR
Yes
•
13
(See ECCENTRIC SHAFT POSITION
SENSOR INSPECTION .)
•
14
No Go to the next step.
Is there any malfunction?
INSPECT ENGINE COMPRESSION
•
(See ECCENTRIC SHAFT POSITION SENSOR
REMOVAL/INSTALLATION .)
Inspect the eccentric shaft position
sensor.
Yes Go to the next step.
Inspect the engine compression.
(See COMPRESSION INSPECTION .) No Go to Step 19.
•
Is there any malfunction?
Repair or replace the malfunctioning part
according to the inspection results.
INSPECT METERING OIL PUMP
•
15
(See METERING OIL PUMP
INSPECTION .)
Yes
Overhaul or replace the engine.
Then go to Step 20.
Is there any malfunction?
No Go to the next step.
INSPECT ENGINE OIL CONDITION
Yes Go to the next step.
•
16
Inspect the metering oil pump.
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Engine Diagnostics & Control
Page 238
Replace the engine oil.
•
•
Inspect the engine oil condition.
Is the engine oil condition normal?
Inspect the ECT sensor and related harnesses.
No
(See ENGINE COOLANT TEMPERATURE
(ECT) SENSOR INSPECTION .)
Overhaul or replace the engine.
Then go to Step 20.
INSPECT OIL PRESSURE
•
17
Inspect the oil pressure.
Repair or replace the malfunctioning part
according to the inspection results.
Yes
Overhaul or replace the engine.
(See OIL PRESSURE INSPECTION .)
Then go to Step 20.
•
Is there any malfunction?
INSPECT OIL PASSAGE
18
•
•
No Go to the next step.
Inspect and repair for leakage and/or clogged in
oil passage at engine.
Yes
Inspect the oil pipe between metering
oil pump and metering oil nozzle.
Is there any malfunction?
Overhaul or replace the engine.
Then go to Step 20.
Overhaul or replace the engine.
No
Then go to the next step.
INSPECT FUEL LINE PRESSURE
•
19
Perform the "FUEL LINE PRESSURE
INSPECTION".
Replace the fuel pump unit, then go to the next
step.
Yes
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION .)
(See FUEL LINE PRESSURE
INSPECTION .)
•
Is there any malfunction ?
VERIFY TROUBLESHOOTING OF DTC
P0506 COMPLETED
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
20
•
•
•
Make sure to reconnect all
disconnected connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the PENDING CODE same as DTC
present?
No Go to the next step.
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Engine Diagnostics & Control
Page 239
VERIFY AFTER REPAIR PROCEDURE
•
21
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
Go to the applicable DTC inspection.
Yes
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 240
DTC P0507
DTC P0507
Idle air control system RPM higher than expected
•
The PCM compares the actual idle speed with the target idle speed when the engine
is running. If the actual idle speed is higher than targeted by 200 rpm , the PCM
determines that the idle air control system RPM is higher than expected.
Diagnostic support note
DETECTION
CONDITION
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
•
•
•
Vacuum hoses improper connection
Drive-by-wire control system malfunction
IAT sensor malfunction
ECT sensor malfunction
APP sensor malfunction
Eccentric shaft position sensor malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 241
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS Yes Go to the next step.
BEEN RECORDED
1
•
Has FREEZE FRAME DATA
been recorded?
No
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
Perform repair or diagnosis according to the available
repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
Yes
2
•
•
Verify related Service Bulletins
and/or on-line repair information
availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE
OR STORED DTC
•
If the vehicle is not repaired, go to the next step.
No Go to the next step.
Go to the applicable DTC inspection.
Yes
(See DTC TABLE .)
3
•
•
•
4
Turn the ignition switch off, then
to the ON position (Engine off).
Verify the related PENDING
CODE or stored DTCs.
Are other DTCs present?
No Go to the next step.
INSPECT VACUUM HOSE FOR POOR Yes Go to the next step.
CONNECTION
Connect the vacuum hose accurately, then go to Step
• Are the vacuum hoses connecting
10.
accurately?
No
(See INTAKE-AIR SYSTEM HOSE ROUTING
(See INTAKE-AIR SYSTEM
DIAGRAM .)
HOSE ROUTING DIAGRAM .)
INSPECT DRIVE-BY-WIRE
CONTROL SYSTEM OPERATION
•
5
Perform the "Drive-by-wire
Control System Inspection".
(See Drive-by-wire Control
System Inspection .)
•
Yes
Repair or replace the malfunctioning part according to
the inspection results.
Then go to Step 10.
No Go to the next step.
Is there any malfunction?
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Engine Diagnostics & Control
Page 242
INSPECT IAT SENSOR
•
Inspect the IAT sensor.
(See INTAKE AIR
TEMPERATURE (IAT) SENSOR
INSPECTION .)
6
•
Is there any malfunction ?
Replace the MAF/IAT sensor, then go to Step 10.
Yes (See MASS AIR FLOW (MAF)/INTAKE AIR
TEMPERATURE (IAT) SENSOR
REMOVAL/INSTALLATION .)
No Go to the next step.
INSPECT ECT SENSOR
•
Inspect the ECT sensor.
(See ENGINE COOLANT
TEMPERATURE (ECT)
SENSOR INSPECTION .)
7
•
Replace the ECT sensor, then go to Step 10.
Yes
No Go to the next step.
Is there any malfunction ?
INSPECT APP SENSOR
•
Inspect the APP sensor.
(See ACCELERATOR PEDAL
POSITION (APP) SENSOR
INSPECTION .)
8
•
(See ENGINE COOLANT TEMPERATURE (ECT)
SENSOR REMOVAL/INSTALLATION .)
Replace the APP sensor, then go to Step 10.
Yes
(See ACCELERATOR PEDAL
REMOVAL/INSTALLATION .)
No Go to the next step.
Is there any malfunction ?
INSPECT ECCENTRIC SHAFT
POSITION SENSOR
Replace the eccentric shaft position sensor, then go to
the next step.
Yes
•
9
(See ECCENTRIC SHAFT
POSITION SENSOR
INSPECTION .)
•
10
Inspect the eccentric shaft position
sensor.
(See ECCENTRIC SHAFT POSITION SENSOR
REMOVAL/INSTALLATION .)
No Go to the next step.
Is there any malfunction?
VERIFY TROUBLESHOOTING OF
DTC P0507 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 243
•
•
•
•
Make sure to reconnect all
disconnected connectors.
Clear the DTC from the PCM
memory using the WDS or
equivalent.
Start the engine.
Is the PENDING CODE same as
DTC present?
VERIFY AFTER REPAIR
PROCEDURE
No Go to the next step.
Go to the applicable DTC inspection.
Yes
(See DTC TABLE .)
•
11
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR
PROCEDURE .)
•
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 244
DTC P0562
DTC P0562
System voltage low (KAM)
•
The PCM monitors the battery voltage when the engine is running. If the voltage
is less than 2.5 V , the PCM determines that the system voltage is low.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE CAUSE
•
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Battery malfunction
Connector or terminal malfunction
Open circuit in wiring harness between battery positive terminal and PCM
terminal 5J
Short to GND in wiring harness between battery positive terminal and PCM
terminal 5J
Meltdown fuse
PCM malfunction
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Engine Diagnostics & Control
Page 245
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Engine Diagnostics & Control
Page 246
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT FUSE
3
•
•
Inspect the fuse.
Is there any malfunction?
INSPECT BATTERY POSITIVE TERMINAL
FOR POOR INSTALLATION
4
•
•
•
Turn the ignition switch off.
Inspect for looseness of the battery positive
terminal.
Is there any malfunction?
Yes Replace the fuse, then go to Step 9.
No Go to the next step.
Yes
Connect the battery positive terminal
correctly, then go to Step 9.
No Go to the next step.
Repair or replace the wiring harness for a
INSPECT BATTERY CIRCUIT FOR SHORT TO
Yes
possible short to GND, then go to Step 9.
GND
5
•
•
•
Turn the ignition switch off.
Inspect for continuity between battery
positive terminal (wiring harness-side) and
body GND.
Is there continuity?
No Go to the next step.
INSPECT BATTERY
•
6
Inspect the battery.
Replace the battery, then go to Step 9.
Yes
(See BATTERY
REMOVAL/INSTALLATION .)
(See BATTERY INSPECTION .)
•
Is there any malfunction?
No Go to the next step.
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Engine Diagnostics & Control
Page 247
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
7
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT BATTERY CIRCUIT FOR OPEN
CIRCUIT
8
•
•
•
Turn the ignition switch off.
Inspect for continuity between battery
positive terminal (wiring harness-side) and
PCM terminal 5J (wiring harness-side).
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC P0562
COMPLETED
Yes
Repair or replace the terminal, then go to
Step 9.
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
9
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the same DTC present?
No Go to the next step.
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
10
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 248
DTC P0564
DTC P0564
Cruise control switch input circuit problem
•
DETECTION
CONDITION
POSSIBLE
CAUSE
The PCM monitors the input voltage from the cruise control switch when the
engine is running. If the input voltage is less than 3.0 V for more than 2 min , the
PCM determines that there is a cruise control switch input circuit problem.
Diagnostic support note
•
•
•
•
•
This is a continuous monitor (Other).
The MIL does not illuminate.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
Cruise control switch malfunction
Connector or terminal malfunction
Short to GND in wiring harness between cruise control switch terminal B and PCM
terminal 5V
PCM malfunction
•
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Engine Diagnostics & Control
Page 249
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Engine Diagnostics & Control
Page 250
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT CRUISE CONTROL SWITCH
CONNECTOR FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the cruise control switch
connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT CRUISE CONTROL SWITCH
SIGNAL CIRCUIT FOR SHORT TO GND
4
•
•
•
Turn the ignition switch off.
Inspect for continuity between cruise
control switch terminal B (wiring harnessside) and body GND.
Is there any continuity?
Yes
No Go to the next step.
Yes
5
Replace the cruise control switch, then go to
Step 7.
Yes
(See AUDIO CONTROL SWITCH
REMOVAL/INSTALLATION .)
(See CRUISE CONTROL SWITCH
INSPECTION .)
•
6
Inspect the cruise control switch.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
Repair or replace the wiring harness for a
possible short to GND, then go to Step 7.
No Go to the next step.
INSPECT CRUISE CONTROL SWITCH
•
Repair or replace the terminal, then go to Step
7.
No Go to the next step.
Yes
Repair or replace the terminal, then go to the
next step.
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Engine Diagnostics & Control
Page 251
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0564 COMPLETED
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
7
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the same DTC present?
No Go to the next step.
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
8
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 252
DTC P0571
DTC P0571
Brake switch input circuit problem
•
DETECTION
CONDITION
The PCM monitors the input signal from brake switch No.1 and brake switch No.2
when the engine is running. If the both input signals remain on or off, the PCM
determines that there is a brake switch input circuit problem.
Diagnostic support note
•
•
•
•
•
This is a continuous monitor (Other).
The MIL does not illuminate.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
With ABS HU/CM
•
•
•
•
•
•
•
POSSIBLE
CAUSE
•
Brake switch malfunction
ABS HU/CM malfunction
Open circuit in wiring harness between battery positive terminal and brake switch
terminal B
Short to GND in wiring harness between battery positive terminal and brake
switch terminal B
Open circuit in wiring harness between brake switch terminal D and ABS HU/CM
terminal Y
Short to power supply in wiring harness between brake switch terminal D and ABS
HU/CM terminal Y
Short to GND in wiring harness between brake switch terminal D and ABS
HU/CM terminal Y
PCM malfunction
With DSC HU/CM
•
•
•
•
•
•
•
Brake switch malfunction
DSC HU/CM malfunction
Open circuit in wiring harness between battery positive terminal and brake switch
terminal B
Short to GND in wiring harness between battery positive terminal and brake
switch terminal B
Open circuit in wiring harness between brake switch terminal D and DSC HU/CM
terminal AD
Short to power supply in wiring harness between brake switch terminal D and DSC
HU/CM terminal AD
Short to GND in wiring harness between brake switch terminal D and DSC
HU/CM terminal AD
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Engine Diagnostics & Control
Page 253
•
PCM malfunction
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Engine Diagnostics & Control
Page 254
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
VERIFY RELATED PENDING CODE OR
STORED DTC
Go to the appropriate DTC inspection.
Yes
(See DTC TABLE .)
3
•
•
•
Turn the ignition switch off, then to the ON
position (Engine off).
Verify the related PENDING CODE or
No Go to the next step.
stored DTCs.
Are other DTCs present?
INSPECT BRAKE SWITCH CONNECTOR
FOR POOR CONNECTION
4
•
•
•
•
Turn the ignition switch off.
Disconnect the brake switch connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT BRAKE SWITCH NO.1 POWER
CIRCUIT FOR OPEN CIRCUIT OR SHORT TO
GND
5
•
•
•
6
Yes
Repair or replace the terminal, then go to Step
11.
No Go to the next step.
Yes Go to the next step.
Turn the ignition switch to the ON position
Repair or replace the wiring harness for a
(Engine off).
No
possible
open circuit or short to GND, then go
Measure the voltage between brake switch
to Step 11.
terminal B (wiring harness-side) and body
GND.
Is the voltage B+ ?
INSPECT BRAKE SWITCH NO.1 SIGNAL
CIRCUIT FOR SHORT TO GND
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 11.
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Engine Diagnostics & Control
Page 255
•
•
•
Turn the ignition switch off.
Inspect for continuity between brake switch
terminal D (wiring harness-side) and body No Go to the next step.
GND.
Is there continuity?
INSPECT BRAKE SWITCH NO.1 SIGNAL
CIRCUIT FOR SHORT TO POWER SUPPLY
•
7
•
•
Repair or replace the wiring harness for a
Yes possible short to power supply, then go to Step
11.
Turn the ignition switch to the ON position
(Engine off).
Measure the voltage between brake switch
terminal D (wiring harness-side) and body No Go to the next step.
GND.
Is the voltage B+ ?
INSPECT BRAKE SWITCH NO.1
•
8
Inspect the brake switch No.1.
Is there any malfunction ?
INSPECT ABS HU/CM OR DSC HU/CM
CONNECTOR FOR POOR CONNECTION
•
•
•
•
10
Yes
(See BRAKE PEDAL
REMOVAL/INSTALLATION .)
(See BRAKE SWITCH INSPECTION .)
•
9
Replace the brake switch, then go to Step 11.
Turn the ignition switch off.
Disconnect the ABS HU/CM or DSC
HU/CM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
11.
No Go to the next step.
Yes Go to the next step.
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Engine Diagnostics & Control
Page 256
INSPECT BRAKE SWITCH NO.1 SIGNAL
CIRCUIT FOR OPEN CIRCUIT
•
•
•
11
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
For ABS HU/CM models: brake
switch terminal D (wiring harnessside) and ABS HU/CM terminal Y
(wiring harness-side)
For DSC HU/CM models: brake
switch terminal D (wiring harnessside) and DSC HU/CM terminal
AD (wiring harness-side)
Is there continuity?
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
VERIFY TROUBLESHOOTING OF DTC P0571
Replace the PCM, then go to the next step.
COMPLETED
Yes
(See PCM REMOVAL/INSTALLATION .)
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
• Start the engine.
• Operate the brake pedal.
• Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
12
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 257
DTC P06XX
DTC P0601
DTC P0601
PCM memory check sum error
•
PCM internal memory check sum error.
Diagnostic support note
DETECTION
CONDITION
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in
the first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
PCM internal memory malfunction
•
•
•
POSSIBLE CAUSE
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Engine Diagnostics & Control
Page 258
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY TROUBLESHOOTING OF P0601
COMPLETED
•
3
•
•
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
4
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 259
DTC P0602
DTC P0602
PCM programming error
•
No configuration data in the PCM.
Diagnostic support note
DETECTION
CONDITION
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in
the first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
Complete configulation has not been completed
PCM malfunction
•
•
•
POSSIBLE CAUSE
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Engine Diagnostics & Control
Page 260
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
ACTION
Yes Go to the next step.
No
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Perform repair or diagnosis according to the
available repair information.
Yes
No
•
If the vehicle is not repaired, go to the next
step.
Perform the "PCM CONFIGURATION", then go
to the next step.
(See PCM CONFIGURATION .)
VERIFY TROUBLESHOOTING OF DTC
P0602 COMPLETED
•
3
•
•
•
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
4
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 261
DTC P0604
DTC P0604
PCM random access memory error
•
PCM internal random access memory error.
Diagnostic support note
DETECTION
CONDITION
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
PCM internal RAM malfunction
•
•
•
POSSIBLE CAUSE
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Engine Diagnostics & Control
Page 262
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY TROUBLESHOOTING OF P0604
COMPLETED
•
3
•
•
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
4
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 263
DTC P0610
DTC P0610
PCM vehicle options error
•
PCM data configuration error.
Diagnostic support note
DETECTION
CONDITION
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in
the first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
Configulation procedure has not been completed
PCM malfunction
•
•
•
POSSIBLE CAUSE
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Engine Diagnostics & Control
Page 264
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
ACTION
Yes Go to the next step.
No
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Perform repair or diagnosis according to the
available repair information.
Yes
No
•
If the vehicle is not repaired, go to the next
step.
Perform the "PCM CONFIGURATION", then go
to the next step.
(See PCM CONFIGURATION .)
VERIFY TROUBLESHOOTING OF DTC
P0610 COMPLETED
•
3
•
•
•
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
4
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 265
DTC P0638
DTC P0638
Throttle actuator control circuit range/performance problem
•
DETECTION
CONDITION
POSSIBLE
CAUSE
The PCM compares the actual TP with the target TP when the engine is running. If
the difference is more than the specification, the PCM determines that there is a
throttle actuator control circuit range/performance problem.
Diagnostic support note
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
Drive-by-wire control system malfunction
Throttle actuator malfunction
Throttle valve malfunction
PCM malfunction
•
•
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Engine Diagnostics & Control
Page 266
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE OR
STORED DTC
3
•
•
•
4
5
If the vehicle is not repaired, go to the next
step.
Go to the applicable DTC inspection.
Yes
Yes
Repair or replace the malfunctioning part
according to the inspection results.
Then go to Step 7.
No Go to the next step.
Is there any malfunction?
INSPECT THROTTLE ACTUATOR
•
•
No Go to the next step.
Perform the "Drive-by-wire Control
System Inspection".
(See Drive-by-wire Control System
Inspection .)
•
Yes
(See DTC TABLE .)
Turn the ignition switch off, then to the
ON position (Engine off).
Verify the related PENDING CODE or
No Go to the next step.
stored DTCs.
Are other DTCs present?
INSPECT DRIVE-BY-WIRE CONTROL
SYSTEM OPERATION
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Inspect the throttle actuator.
Replace the throttle body, then go to Step 7.
Yes
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
(See Resistance Inspection .)
•
Is there any malfunction ?
No Go to the next step.
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Engine Diagnostics & Control
Page 267
INSPECT THROTTLE VALVE
•
6
Inspect the throttle valve.
Yes
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
(See Throttle Valve Inspection .)
•
Is there any malfunction ?
VERIFY TROUBLESHOOTING OF P0638
COMPLETED
•
7
Replace the throttle body, then go to the next
step.
•
•
•
No Go to the next step.
Replace the PCM, go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
8
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 268
DTC P0661
DTC P0661
SSV solenoid valve control circuit low
•
The PCM monitors the SSV solenoid valve control voltage when the PCM turns
the SSV solenoid valve off. If the control voltage is less than 5.8 V , the PCM
determines that the SSV solenoid valve control circuit voltage is low.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
SSV solenoid valve malfunction
Connector or terminal malfunction
Open circuit in wiring harness between main relay terminal C and SSV solenoid
valve terminal A
Short to GND in wiring harness between main relay terminal C and SSV solenoid
valve terminal A
Open circuit in wiring harness between SSV solenoid valve terminal B and PCM
terminal 1L
Short to GND in wiring harness between SSV solenoid valve terminal B and PCM
terminal 1L
PCM malfunction
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Engine Diagnostics & Control
Page 269
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Engine Diagnostics & Control
Page 270
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT SSV SOLENOID VALVE
CONNECTOR FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the SSV solenoid valve
connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT SSV SOLENOID VALVE POWER
CIRCUIT FOR OPEN CIRCUIT OR SHORT TO
GND
4
•
•
•
Yes
Repair or replace the terminal, then go to Step
9.
No Go to the next step.
Yes Go to the next step.
Turn the ignition switch to the ON position
Repair or replace the wiring harness for a
(Engine off).
Measure the voltage between SSV solenoid No possible open circuit or short to GND, then go
to Step 9.
valve terminal A (wiring harness-side) and
body GND.
Is the voltage B+ ?
Repair or replace the wiring harness for a
INSPECT SSV SOLENOID VALVE CONTROL
Yes
possible short to GND, then go to Step 9.
CIRCUIT FOR SHORT TO GND
5
•
•
•
Turn the ignition switch off.
Inspect for continuity between SSV
solenoid valve terminal B (wiring harnessside) and body GND.
Is there continuity?
No Go to the next step.
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Engine Diagnostics & Control
Page 271
INSPECT SSV SOLENOID VALVE
•
Inspect the SSV solenoid valve.
Yes
(See INTAKE-AIR SYSTEM HOSE
ROUTING DIAGRAM .)
(See SECONDARY SHUTTER VALVE
(SSV) SOLENOID VALVE
INSPECTION .)
6
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
7
Replace the SSV solenoid valve, then go to
Step 9.
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
9.
No Go to the next step.
INSPECT SSV SOLENOID VALVE CONTROL Yes Go to the next step.
CIRCUIT FOR OPEN CIRCUIT
8
•
•
•
9
Turn the ignition switch off.
Inspect for continuity between SSV
solenoid valve terminal B (wiring harnessside) and PCM terminal 1L (wiring
harness-side).
Is there continuity?
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
VERIFY TROUBLESHOOTING OF DTC P0661
Replace the PCM, then go to the next step.
COMPLETED
Yes
(See PCM REMOVAL/INSTALLATION .)
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
• Start the engine.
• Is the PENDING CODE same as DTC
present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
10
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 272
DTC P0662
DTC P0662
SSV solenoid valve control circuit high
•
The PCM monitors the SSV solenoid valve control voltage when the PCM turns
the SSV solenoid valve on. If the control voltage is more than 11.5 V , the PCM
determines that the SSV solenoid valve control circuit voltage is high.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
SSV solenoid valve malfunction
Connector or terminal malfunction
Short to power supply in wiring harness between SSV solenoid valve terminal B
and PCM terminal 1L
PCM malfunction
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Engine Diagnostics & Control
Page 273
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT SSV SOLENOID VALVE
CONNECTOR FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the SSV solenoid valve
connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT SSV SOLENOID VALVE
CONTROL CIRCUIT FOR SHORT TO
POWER SUPPLY
4
•
•
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between SSV
solenoid valve terminal B (wiring
harness-side) and body GND.
Is the voltage B+ ?
Yes
•
Inspect the SSV solenoid valve.
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 7.
No Go to the next step.
Yes
Repair or replace the wiring harness for a
possible short to power supply, then go to Step 7.
No Go to the next step.
Replace the SSV solenoid valve, then go to Step
7.
INSPECT SSV SOLENOID VALVE
5
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
(See INTAKE-AIR SYSTEM HOSE ROUTING
DIAGRAM .)
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Engine Diagnostics & Control
Page 274
(See SECONDARY SHUTTER VALVE
(SSV) SOLENOID VALVE
INSPECTION .)
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
6
•
•
•
•
No Go to the next step.
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0662 COMPLETED
Yes
Repair or replace the terminal, then go to the
next step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
7
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the PENDING CODE same as DTC
present?
No Go to the next step.
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
8
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 275
DTC P07XX
DTC P0703
DTC P0703
Brake switch No.1 input circuit problem
•
The PCM monitors the input signal from the brake switch No.2 when the following
conditions are met. If the input signal does not change while alternately accelerating
and decelerating 8 times , the PCM determines that there is a brake switch No.2
input circuit malfunction.
MONITORING CONDITION
DETECTION
CONDITION
Vehicle speed: decelerating more than 30 km/h {19 mph} to 0 km/h {0
mph}
Deceleration: more than 4 km/h {2 mph} per s
Diagnostic support note
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Brake switch No.2 malfunction
Connector or terminal malfunction
Open circuit in wiring harness between brake switch terminal A and PCM terminal
4P
Short to GND in wiring harness between brake switch terminal A and PCM terminal
4P
Open circuit in wiring harness between brake switch terminal C and GND
PCM malfunction
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Engine Diagnostics & Control
Page 276
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Engine Diagnostics & Control
Page 277
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT BRAKE SWITCH CONNECTOR FOR
POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the brake switch connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT BRAKE SWITCH NO.2 GND
CIRCUIT FOR OPEN CIRCUIT
4
•
•
•
Turn the ignition switch off.
Inspect for continuity between brake switch
terminal C (wiring harness-side) and body
GND.
Is there any continuity?
INSPECT BRAKE SWITCH NO.2 SIGNAL
CIRCUIT FOR SHORT TO GND
5
•
•
•
Turn the ignition switch off.
Inspect for continuity between brake switch
terminal A (wiring harness-side) and body
GND.
Is there any continuity?
Yes
Repair or replace the terminal, then go to
Step 9.
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to Step 9.
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 9.
No Go to the next step.
Replace the brake switch, then go to Step 9.
6
INSPECT BRAKE SWITCH NO.2
Yes
(See BRAKE PEDAL
REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 278
•
Inspect the brake switch No.2.
(See BRAKE SWITCH INSPECTION .)
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
7
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT BRAKE SWITCH NO.2 SIGNAL
CIRCUIT FOR OPEN CIRCUIT
8
•
•
•
No Go to the next step.
Turn the ignition switch off.
Inspect for continuity between brake switch
terminal A (wiring harness-side) and PCM
terminal 4P (wiring harness-side).
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC P0703
COMPLETED
Yes
Repair or replace the terminal, then go to
Step 9.
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
9
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory using
the WDS or equivalent.
Perform the following procedures 8 times
alternately.
Drive the vehicle more than 30
No Go to the next step.
km/h {19 mph} .
Decelerate to 0 km/h {0 mph}
within 7 s .
Is the PENDING CODE same as DTC
present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
10
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 279
DTC P0704
DTC P0704
CPP switch input circuit problem
•
The PCM monitors the input signal from the CPP switch when the vehicle speed is
more than 30 km/h {19 mph} . If the input signal does not change while
alternately accelerating and decelerating 10 times , the PCM determines that there is
a CPP switch input circuit malfunction.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
CPP switch malfunction
Connector or terminal malfunction
Open circuit in wiring harness between CPP switch terminal B and PCM terminal
4F
Short to GND in wiring harness between CPP switch terminal B and PCM terminal
4F
Open circuit in wiring harness between CPP switch terminal D and GND
PCM malfunction
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Engine Diagnostics & Control
Page 280
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Engine Diagnostics & Control
Page 281
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT CPP SWITCH CONNECTOR FOR
POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the CPP switch connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT CPP SWITCH GND CIRCUIT FOR
OPEN CIRCUIT
4
•
•
•
Turn the ignition switch off.
Inspect for continuity between CPP switch
terminal D (wiring harness-side) and body
GND.
Is there any continuity?
Yes
Repair or replace the terminal, then go to
Step 9.
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to Step 9.
Repair or replace the wiring harness for a
INSPECT CPP SWITCH SIGNAL CIRCUIT FOR
Yes
possible short to GND, then go to Step 9.
SHORT TO GND
5
•
•
•
Turn the ignition switch off.
Inspect for continuity between CPP switch
terminal B (wiring harness-side) and body
GND.
Is there any continuity?
No Go to the next step.
Replace the CPP switch, then go to Step 9.
6
INSPECT CPP SWITCH
Yes
(See CLUTCH PEDAL
REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 282
•
Inspect the CPP switch.
(See CLUTCH PEDAL POSITION (CPP)
SWITCH INSPECTION .)
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
7
•
•
•
•
No Go to the next step.
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
Yes
Repair or replace the terminal, then go to
Step 9.
No Go to the next step.
INSPECT CPP SWITCH SIGNAL CIRCUIT FOR Yes Go to the next step.
OPEN CIRCUIT
8
•
•
•
Turn the ignition switch off.
Inspect for continuity between CPP switch
terminal B (wiring harness-side) and PCM
terminal 4F (wiring harness-side).
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC P0704
COMPLETED
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
9
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Operate the clutch pedal when drive the
vehicle more than 30 km/h {19 mph} 10
times alternately.
Is the PENDING CODE same as DTC
present?
No Go to the next step.
Go to the applicable DTC inspection.
VERIFY AFTER REPAIR PROCEDURE
Yes
•
10
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 283
DTC P08XX
DTC P0850
DTC P0850
Neutral switch input circuit problem
•
The PCM monitors the input signal from the neutral switch when the vehicle is
running. If the input signal does not change while alternately running more than 30
km/h {19 mph} 8 times , the PCM determines that there is a neutral switch input
circuit malfunction.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Neutral switch malfunction
Connector or terminal malfunction
Open circuit in wiring harness between neutral switch terminal 2A and PCM
terminal 2O
Short to GND in wiring harness between neutral switch terminal 2A and PCM
terminal 2O
Open circuit in wiring harness between neutral switch terminal 1A and GND
PCM malfunction
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Engine Diagnostics & Control
Page 284
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Engine Diagnostics & Control
Page 285
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT NEUTRAL SWITCH CONNECTOR
FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the neutral switch connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT NEUTRAL SWITCH GND CIRCUIT
FOR OPEN CIRCUIT
4
•
•
•
Turn the ignition switch off.
Inspect for continuity between neutral
switch terminal 1A (wiring harness-side)
and body GND.
Is there any continuity?
INSPECT NEUTRAL SWITCH SIGNAL
CIRCUIT FOR SHORT TO GND
5
•
•
•
Turn the ignition switch off.
Inspect for continuity between neutral
switch terminal 2A (wiring harness-side)
and body GND.
Is there any continuity?
Yes
Repair or replace the terminal, then go to
Step 9.
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to Step 9.
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 9.
No Go to the next step.
Replace the neutral switch, then go to Step 9.
6
INSPECT NEUTRAL SWITCH
Yes
(See NEUTRAL SWITCH
REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 286
•
Inspect the neutral switch.
(See NEUTRAL SWITCH INSPECTION .) No Go to the next step.
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
7
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT NEUTRAL SWITCH SIGNAL
CIRCUIT FOR OPEN CIRCUIT
8
•
•
•
Yes
Repair or replace the terminal, then go to
Step 9.
No Go to the next step.
Yes Go to the next step.
Turn the ignition switch off.
Inspect for continuity between neutral
Repair or replace the wiring harness for a
No
switch terminal 2A (wiring harness-side)
possible open circuit, then go to the next step.
and PCM terminal 2O (wiring harness-side).
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC P0850
COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
9
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory using
the WDS or equivalent.
Operate the shift lever when drive the
No Go to the next step.
vehicle more than 30 km/h {19 mph} 8
times alternately.
Is the PENDING CODE same as DTC
present?
Go to the applicable DTC inspection.
VERIFY AFTER REPAIR PROCEDURE
Yes
•
10
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 287
DTC P12XX
DTC P1260
DTC P1260
Immobilizer system problem
•
The keyless control module detects an immobilizer system malfunction.
Diagnostic support note
DETECTION
CONDITION
POSSIBLE CAUSE
•
•
This is a continuous monitor (Other).
The MIL does not illuminate.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is not stored in the PCM memory.
•
•
Immobilizer system malfunction
PCM malfunction
•
•
•
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Engine Diagnostics & Control
Page 288
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY STORED DTC IN KEYLESS
CONTROL MODULE
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Go to the appropriate DTC inspection.
Yes
(See DTC TABLE (IMMOBILIZER SYSTEM) .)
•
3
•
Turn the ignition switch to the ON
position (Engine off).
Verify stored DTCs in keyless control
module.
(See DTC INSPECTION
(IMMOBILIZER SYSTEM) .)
•
Are DTCs stored ?
VERIFY TROUBLESHOOTING OF DTC
P1260 COMPLETED
•
4
•
•
•
5
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
(See DTC TABLE .)
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Engine Diagnostics & Control
Page 289
•
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 290
DTC P15XX
DTC P1574
DTC P1574
TP sensor output incongruent
•
DETECTION
CONDITION
POSSIBLE
CAUSE
The PCM compares the TP from TP sensor No.1 with the TP from TP sensor No.2
when the engine is running. If the difference is more than the specification, the
PCM determines that the TP sensor outputs are incongruent.
Diagnostic support note
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
TP sensor No.1 malfunction
TP sensor No.2 malfunction
Connector or terminal malfunction
PCM malfunction
•
•
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Engine Diagnostics & Control
Page 291
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT THROTTLE BODY
CONNECTOR FOR POOR CONNECTION
3
•
•
•
•
Yes
4
Yes Repair or replace the terminal, then go to Step 6.
Turn the ignition switch off.
Disconnect the throttle body connector.
No Go to the next step.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
Inspect the TP sensor.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
•
•
•
•
6
If the vehicle is not repaired, go to the next
step.
Replace the throttle body, then go to Step 6.
Yes
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
(See THROTTLE POSITION (TP)
SENSOR INSPECTION .)
•
5
•
No Go to the next step.
INSPECT TP SENSOR
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P1574 COMPLETED
No Go to the next step.
Yes
Repair or replace the terminal, then go to the next
step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 292
•
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
No Go to the next step.
using the WDS or equivalent.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
7
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 293
DTC P1577
DTC P1577
APP sensor output incongruent
•
DETECTION
CONDITION
POSSIBLE
CAUSE
The PCM compares the APP from APP sensor No.1 with the APP from APP
sensor No.2 when the engine is running. If the difference is more than the
specification, the PCM determines that the APP sensor outputs are incongruent.
Diagnostic support note
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
APP sensor No.1 malfunction
APP sensor No.2 malfunction
Connector or terminal malfunction
PCM malfunction
•
•
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Engine Diagnostics & Control
Page 294
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
INSPECT APP SENSOR CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 6.
POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the APP sensor connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
No Go to the next step.
INSPECT APP SENSOR
•
Inspect the APP sensor.
(See ACCELERATOR PEDAL
POSITION (APP) SENSOR
INSPECTION .)
4
•
•
•
•
•
Yes
(See ACCELERATOR PEDAL
REMOVAL/INSTALLATION .)
No Go to the next step.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
5
Replace the APP sensor, then go to Step 6.
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
Yes
Repair or replace the terminal, then go to the next
step.
No Go to the next step.
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Engine Diagnostics & Control
Page 295
VERIFY TROUBLESHOOTING OF DTC
P1577 COMPLETED
•
6
•
•
•
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
7
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 296
DTC P16XX
DTC P1686
DTC P1686
Metering oil pump control circuit low flow side problem
•
DETECTION
CONDITION
Diagnostic support note
•
•
•
•
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
The PCM monitors the input signal from the metering oil pump switch when the
metering oil pump stepping motor is more than the standard step. If the input signal
is off, the PCM determines that the metering oil pump control circuit has a problem
on the low flow side.
•
•
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the first
drive cycle.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Metering oil pump malfunction
Metering oil pump switch malfunction
Connector or terminal malfunction
Open circuit in wiring harness between main relay terminal C and metering oil
pump terminal C
Short to GND in wiring harness between main relay terminal C and metering oil
pump terminal C
Open circuit in wiring harness between main relay terminal C and metering oil
pump terminal D
Short to GND in wiring harness between main relay terminal C and metering oil
pump terminal D
Open circuit in wiring harness between metering oil pump terminal A and PCM
terminal 2V
Short to GND in wiring harness between metering oil pump terminal A and PCM
terminal 2V
Open circuit in wiring harness between metering oil pump terminal E and PCM
terminal 2W
Short to GND in wiring harness between metering oil pump terminal E and PCM
terminal 2W
Open circuit in wiring harness between metering oil pump terminal B and PCM
terminal 2Y
Short to GND in wiring harness between metering oil pump terminal B and PCM
terminal 2Y
Open circuit in wiring harness between metering oil pump terminal F and PCM
terminal 2AB
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Engine Diagnostics & Control
Page 297
•
•
•
•
Short to GND in wiring harness between metering oil pump terminal F and PCM
terminal 2AB
Open circuit in wiring harness between metering oil pump switch terminal A and
PCM terminal 2N
Open circuit in wiring harness between metering oil pump switch terminal C and
PCM terminal 1U
PCM malfunction
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Engine Diagnostics & Control
Page 298
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT METERING OIL PUMP
CONNECTOR FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the metering oil pump
connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT METERING OIL PUMP POWER
CIRCUIT FOR OPEN CIRCUIT OR SHORT
TO GND
•
•
4
•
5
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between the
following circuits:
Metering oil pump terminal C
(wiring harness-side) and body
GND
Metering oil pump terminal D
(wiring harness-side) and body
GND
Is the voltage B+ ?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
13.
No Go to the next step.
Yes Go to the next step.
Repair or replace the wiring harness for a
No possible open circuit or short to GND, then go to
Step 13.
Repair or replace the wiring harness for a
INSPECT METERING OIL PUMP CONTROL
Yes
possible short to GND, then go to Step 13.
CIRCUIT FOR SHORT TO GND
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Engine Diagnostics & Control
Page 299
•
•
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Metering oil pump terminal A
(wiring harness-side) and body
GND
Metering oil pump terminal E
(wiring harness-side) and body
GND
Metering oil pump terminal B
(wiring harness-side) and body
GND
Metering oil pump terminal F
(wiring harness-side) and body
GND
Is there continuity?
No Go to the next step.
Replace the metering oil pump, then go to Step
13.
INSPECT METERING OIL PUMP
•
6
Inspect the metering oil pump.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
•
•
•
•
8
(See METERING OIL PUMP
REMOVAL/INSTALLATION .)
(See METERING OIL PUMP
INSPECTION .)
•
7
Yes
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
13.
No Go to the next step.
Yes Go to the next step.
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Engine Diagnostics & Control
Page 300
INSPECT METERING OIL PUMP CONTROL
CIRCUIT FOR OPEN CIRCUIT
•
•
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Metering oil pump terminal A
(wiring harness-side) and PCM
terminal 2V (wiring harness-side)
Metering oil pump terminal E
Repair or replace the wiring harness for a
(wiring harness-side) and PCM
No
possible open circuit, then go to Step 13.
terminal 2W (wiring harnessside)
Metering oil pump terminal B
(wiring harness-side) and PCM
terminal 2Y (wiring harness-side)
Metering oil pump terminal F
(wiring harness-side) and PCM
terminal 2AB (wiring harnessside)
Is there continuity?
INSPECT METERING OIL PUMP SWITCH
CONNECTOR FOR POOR CONNECTION
9
•
•
•
•
Yes
Turn the ignition switch off.
Disconnect the metering oil pump switch
connector.
No Go to the next step.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
Replace the metering oil pump, then go to Step
13.
INSPECT METERING OIL PUMP SWITCH
•
10
Inspect the metering oil pump switch.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
11
Yes
(See METERING OIL PUMP
REMOVAL/INSTALLATION .)
(See METERING OIL PUMP SWITCH
INSPECTION .)
•
•
•
•
•
Repair or replace the terminal, then go to Step
13.
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
13.
No Go to the next step.
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Engine Diagnostics & Control
Page 301
INSPECT METERING OIL PUMP SWITCH
SIGNAL CIRCUIT FOR OPEN CIRCUIT
•
•
12
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Metering oil pump switch
terminal A (wiring harness-side)
and PCM terminal 2N (wiring
harness-side)
Metering oil pump switch
terminal C (wiring harness-side)
and PCM terminal 1U (wiring
harness-side)
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P1686 COMPLETED
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
13
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the same DTC present?
No Go to the next step.
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
14
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 302
DTC P1687
DTC P1687
Metering oil pump control circuit high flow side problem
•
DETECTION
CONDITION
Diagnostic support note
•
•
•
•
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
The PCM monitors the input signal from the metering oil pump switch when the
metering oil pump stepping motor is less than the standard step. If the input signal
is on, the PCM determines that the metering oil pump control circuit has a problem
on the high flow side.
•
•
•
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the first
drive cycle.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Metering oil pump malfunction
Metering oil pump switch malfunction
Connector or terminal malfunction
Open circuit in wiring harness between main relay terminal C and metering oil
pump terminal C
Short to GND in wiring harness between main relay terminal C and metering oil
pump terminal C
Open circuit in wiring harness between main relay terminal C and metering oil
pump terminal D
Short to GND in wiring harness between main relay terminal C and metering oil
pump terminal D
Open circuit in wiring harness between metering oil pump terminal A and PCM
terminal 2V
Short to GND in wiring harness between metering oil pump terminal A and PCM
terminal 2V
Open circuit in wiring harness between metering oil pump terminal E and PCM
terminal 2W
Short to GND in wiring harness between metering oil pump terminal E and PCM
terminal 2W
Open circuit in wiring harness between metering oil pump terminal B and PCM
terminal 2Y
Short to GND in wiring harness between metering oil pump terminal B and PCM
terminal 2Y
Open circuit in wiring harness between metering oil pump terminal F and PCM
terminal 2AB
Short to GND in wiring harness between metering oil pump terminal F and PCM
terminal 2AB
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Engine Diagnostics & Control
Page 303
•
•
Short to GND in wiring harness between metering oil pump switch terminal A and
PCM terminal 2N
PCM malfunction
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Engine Diagnostics & Control
Page 304
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT METERING OIL PUMP
CONNECTOR FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the metering oil pump
connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT METERING OIL PUMP POWER
CIRCUIT FOR OPEN CIRCUIT OR SHORT
TO GND
•
•
4
•
5
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between the
following circuits:
Metering oil pump terminal C
(wiring harness-side) and body
GND
Metering oil pump terminal D
(wiring harness-side) and body
GND
Is the voltage B+ ?
INSPECT METERING OIL PUMP
CONTROL CIRCUIT FOR SHORT TO GND
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
13.
No Go to the next step.
Yes Go to the next step.
Repair or replace the wiring harness for a
No possible open circuit or short to GND, then go to
Step 13.
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 13.
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Engine Diagnostics & Control
Page 305
•
•
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Metering oil pump terminal A
(wiring harness-side) and body
GND
Metering oil pump terminal E
(wiring harness-side) and body
GND
Metering oil pump terminal B
(wiring harness-side) and body
GND
Metering oil pump terminal F
(wiring harness-side) and body
GND
Is there continuity?
No Go to the next step.
Replace the metering oil pump, then go to Step
13.
INSPECT METERING OIL PUMP
•
6
Inspect the metering oil pump.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
•
•
•
•
8
(See METERING OIL PUMP
REMOVAL/INSTALLATION .)
(See METERING OIL PUMP
INSPECTION .)
•
7
Yes
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
13.
No Go to the next step.
Yes Go to the next step.
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Engine Diagnostics & Control
Page 306
INSPECT METERING OIL PUMP
CONTROL CIRCUIT FOR OPEN CIRCUIT
•
•
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Metering oil pump terminal A
(wiring harness-side) and PCM
terminal 2V (wiring harnessside)
Metering oil pump terminal E
(wiring harness-side) and PCM
terminal 2W (wiring harnessside)
Metering oil pump terminal B
(wiring harness-side) and PCM
terminal 2Y (wiring harnessside)
Metering oil pump terminal F
(wiring harness-side) and PCM
terminal 2AB (wiring harnessside)
Is there continuity?
INSPECT METERING OIL PUMP SWITCH
CONNECTOR FOR POOR CONNECTION
9
•
•
•
•
Turn the ignition switch off.
Disconnect the metering oil pump
switch connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT METERING OIL PUMP SWITCH
SIGNAL CIRCUIT FOR SHORT TO GND
10
•
•
•
Turn the ignition switch off.
Inspect for continuity between metering
oil pump switch terminal A (wiring
harness-side) and body GND.
Is there continuity?
No
Repair or replace the wiring harness for a
possible open circuit, then go to Step 13.
Yes
Repair or replace the terminal, then go to Step
13.
No Go to the next step.
Yes
No Go to the next step.
Replace the metering oil pump, then go to Step
13.
INSPECT METERING OIL PUMP SWITCH
11
•
Inspect the metering oil pump switch.
Repair or replace the wiring harness for a
possible short to GND, then go to Step 13.
Yes
(See METERING OIL PUMP
REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 307
(See METERING OIL PUMP SWITCH
INSPECTION .)
No Go to the next step.
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
12
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P1687 COMPLETED
Yes
Repair or replace the terminal, then go to the
next step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
13
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the same DTC present?
No Go to the next step.
Go to the applicable DTC inspection.
VERIFY AFTER REPAIR PROCEDURE
Yes
•
14
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 308
DTC P1688
DTC P1688
Metering oil pump control circuit initial check problem
•
DETECTION
CONDITION
Diagnostic support note
•
•
•
•
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
The PCM monitors the input signal from the metering oil pump switch when the
metering oil pump stepping motor initial check is operating. If the input signal is
on, the PCM determines that there is a metering oil pump control circuit initial
check problem.
•
•
•
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the first
drive cycle.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Metering oil pump malfunction
Metering oil pump switch malfunction
Connector or terminal malfunction
Open circuit in wiring harness between main relay terminal C and metering oil
pump terminal C
Short to GND in wiring harness between main relay terminal C and metering oil
pump terminal C
Open circuit in wiring harness between main relay terminal C and metering oil
pump terminal D
Short to GND in wiring harness between main relay terminal C and metering oil
pump terminal D
Open circuit in wiring harness between metering oil pump terminal A and PCM
terminal 2V
Short to GND in wiring harness between metering oil pump terminal A and PCM
terminal 2V
Open circuit in wiring harness between metering oil pump terminal E and PCM
terminal 2W
Short to GND in wiring harness between metering oil pump terminal E and PCM
terminal 2W
Open circuit in wiring harness between metering oil pump terminal B and PCM
terminal 2Y
Short to GND in wiring harness between metering oil pump terminal B and PCM
terminal 2Y
Open circuit in wiring harness between metering oil pump terminal F and PCM
terminal 2AB
Short to GND in wiring harness between metering oil pump terminal F and PCM
terminal 2AB
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Engine Diagnostics & Control
Page 309
•
•
Short to GND in wiring harness between metering oil pump switch terminal A and
PCM terminal 2N
PCM malfunction
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Engine Diagnostics & Control
Page 310
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT METERING OIL PUMP
CONNECTOR FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the metering oil pump
connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT METERING OIL PUMP POWER
CIRCUIT FOR OPEN CIRCUIT OR SHORT
TO GND
•
•
4
•
5
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between the
following circuits:
Metering oil pump terminal C
(wiring harness-side) and body
GND
Metering oil pump terminal D
(wiring harness-side) and body
GND
Is the voltage B+ ?
INSPECT METERING OIL PUMP
CONTROL CIRCUIT FOR SHORT TO GND
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
13.
No Go to the next step.
Yes Go to the next step.
Repair or replace the wiring harness for a
No possible open circuit or short to GND, then go to
Step 13.
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 13.
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Engine Diagnostics & Control
Page 311
•
•
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Metering oil pump terminal A
(wiring harness-side) and body
GND
Metering oil pump terminal E
(wiring harness-side) and body
GND
Metering oil pump terminal B
(wiring harness-side) and body
GND
Metering oil pump terminal F
(wiring harness-side) and body
GND
Is there continuity?
No Go to the next step.
Replace the metering oil pump, then go to Step
13.
INSPECT METERING OIL PUMP
•
6
Inspect the metering oil pump.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
•
•
•
•
8
(See METERING OIL PUMP
REMOVAL/INSTALLATION .)
(See METERING OIL PUMP
INSPECTION .)
•
7
Yes
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
13.
No Go to the next step.
Yes Go to the next step.
(w)
Engine Diagnostics & Control
Page 312
INSPECT METERING OIL PUMP
CONTROL CIRCUIT FOR OPEN CIRCUIT
•
•
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Metering oil pump terminal A
(wiring harness-side) and PCM
terminal 2V (wiring harnessside)
Metering oil pump terminal E
(wiring harness-side) and PCM
terminal 2W (wiring harnessside)
Metering oil pump terminal B
(wiring harness-side) and PCM
terminal 2Y (wiring harnessside)
Metering oil pump terminal F
(wiring harness-side) and PCM
terminal 2AB (wiring harnessside)
Is there continuity?
INSPECT METERING OIL PUMP SWITCH
CONNECTOR FOR POOR CONNECTION
9
•
•
•
•
Turn the ignition switch off.
Disconnect the metering oil pump
switch connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT METERING OIL PUMP SWITCH
SIGNAL CIRCUIT FOR SHORT TO GND
10
•
•
•
Turn the ignition switch off.
Inspect for continuity between metering
oil pump switch terminal A (wiring
harness-side) and body GND.
Is there continuity?
No
Repair or replace the wiring harness for a
possible open circuit, then go to Step 13.
Yes
Repair or replace the terminal, then go to Step
13.
No Go to the next step.
Yes
No Go to the next step.
Replace the metering oil pump, then go to Step
13.
INSPECT METERING OIL PUMP SWITCH
11
•
Inspect the metering oil pump switch.
Repair or replace the wiring harness for a
possible short to GND, then go to Step 13.
Yes
(See METERING OIL PUMP
REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 313
(See METERING OIL PUMP SWITCH
INSPECTION .)
No Go to the next step.
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
12
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P1688 COMPLETED
Yes
Repair or replace the terminal, then go to the
next step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
13
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the same DTC present?
No Go to the next step.
Go to the applicable DTC inspection.
VERIFY AFTER REPAIR PROCEDURE
Yes
•
14
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 314
DTC P2004
DTC P2004
APV stuck open
•
The PCM monitors the input voltage from the APV position sensor when the
PCM turns the APV motor off. If the input voltage is more than 1.4 V , the PCM
determines that the APV is stuck open.
Diagnostic support note
DETECTION
CONDITION
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
APV stuck open
APV control malfunction
APV motor malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 315
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT APV CONTROL SYSTEM
OPERATION
•
3
Then go to the Step 5.
Perform the "APV Control Inspection".
(See Auxiliary Port Valve (APV) Control
Inspection .)
•
Yes
No Go to the next step.
Is there any malfunction ?
INSPECT APV MOTOR
•
Inspect the APV motor.
Replace the APV motor, then go to the next
step.
Yes
(See INTAKE MANIFOLD
DISASSEMBLY/ASSEMBLY .)
(See AUXILIARY PORT VALVE (APV)
MOTOR INSPECTION (13B-MSP
(HIGH POWER)) .)
4
•
Repair or replace the malfunctioning parts
according to the inspection results.
Is there any malfunction ?
VERIFY TROUBLESHOOTING OF DTC
P2004 COMPLETED
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
5
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the PENDING CODE same as DTC
present?
No Go to the next step.
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Engine Diagnostics & Control
Page 316
VERIFY AFTER REPAIR PROCEDURE
•
6
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
Go to the applicable DTC inspection.
Yes
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
(w)
Engine Diagnostics & Control
Page 317
DTC P2006
DTC P2006
APV motor control circuit IC problem
•
APV motor control IC error.
Diagnostic support note
DETECTION
CONDITION
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction
condition during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
APV motor control IC malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 318
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY TROUBLESHOOTING OF P2006
COMPLETED
•
3
•
•
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the PENDING CODE same as DTC
present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
4
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
(w)
Engine Diagnostics & Control
Page 319
DTC P2008
DTC P2008
APV motor control circuit/open
•
The PCM monitors the APV motor control current when the engine is running. If
the control current is less than 0.1 A or more than 10 A , the PCM determines
that there is an APV motor control open circuit.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
APV motor malfunction
Connector or terminal malfunction
Open circuit in wiring harness between APV motor terminal D and PCM terminal
3G
Short to power supply in wiring harness between APV motor terminal D and PCM
terminal 3G
Short to GND in wiring harness between APV motor terminal D and PCM
terminal 3G
Open circuit in wiring harness between APV motor terminal B and PCM terminal
3J
Short to power supply in wiring harness between APV motor terminal B and PCM
terminal 3J
Short to GND in wiring harness between APV motor terminal B and PCM
terminal 3J
PCM malfunction
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Engine Diagnostics & Control
Page 320
(w)
Engine Diagnostics & Control
Page 321
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT APV MOTOR CONNECTOR FOR
POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the APV motor connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT APV MOTOR CIRCUIT FOR
SHORT TO GND
•
•
4
•
5
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
APV motor terminal D (wiring
harness-side) and body GND
APV motor terminal B (wiring
harness-side) and body GND
Is there continuity?
INSPECT APV MOTOR CIRCUIT FOR
SHORT TO POWER SUPPLY
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 9.
No Go to the next step.
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 9.
No Go to the next step.
Yes
Repair or replace the wiring harness for a
possible short to power supply, then go to Step 9.
(w)
Engine Diagnostics & Control
Page 322
•
•
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between the
following circuits:
APV motor terminal D (wiring
harness-side) and body GND
APV motor terminal B (wiring
harness-side) and body GND
Is the voltage B+ ?
No Go to the next step.
INSPECT APV MOTOR
•
Inspect the APV motor.
(See AUXILIARY PORT VALVE
(APV) MOTOR INSPECTION (13BMSP (HIGH POWER)) .)
6
•
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT APV MOTOR CIRCUIT FOR
OPEN CIRCUIT
•
•
8
•
9
Yes
(See INTAKE MANIFOLD
DISASSEMBLY/ASSEMBLY .)
No Go to the next step.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
7
Replace the APV motor, then go to Step 9.
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
APV motor terminal D (wiring
harness-side) and PCM terminal
3G (wiring harness-side)
APV motor terminal B (wiring
harness-side) and PCM terminal
3J (wiring harness-side)
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P2008 COMPLETED
Yes Repair or replace the terminal, then go to Step 9.
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 323
•
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the PENDING CODE same as DTC
present?
No Go to the next step.
Go to the applicable DTC inspection.
VERIFY AFTER REPAIR PROCEDURE
Yes
•
10
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 324
DTC P2017
DTC P2017
APV position sensor circuit problem
•
•
DETECTION
CONDITION
Diagnostic support note
•
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
The PCM monitors the input voltage from the APV position sensor when the
engine is running. If the input voltage is less than 0.2 V , the PCM determines that
the APV position sensor circuit input voltage is low.
The PCM monitors the input voltage from the APV position sensor when the
engine is running. If the input voltage is more than 4.8 V , the PCM determines
that the APV position sensor circuit input voltage is high.
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
APV position sensor malfunction
Connector or terminal malfunction
Open circuit in wiring harness between APV motor terminal E and PCM terminal
1S
Short to GND in wiring harness between APV motor terminal E and PCM
terminal 1S
Open circuit in wiring harness between APV motor terminal A and PCM terminal
3B
Short to power supply in wiring harness between APV motor terminal A and PCM
terminal 3B
Short to GND in wiring harness between APV motor terminal A and PCM
terminal 3B
Open circuit in wiring harness between APV motor terminal C and PCM terminal
1U
PCM malfunction
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Engine Diagnostics & Control
Page 325
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Engine Diagnostics & Control
Page 326
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT APV MOTOR CONNECTOR FOR
POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the APV motor connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT APV POSITION SENSOR
CIRCUIT FOR SHORT TO GND
•
•
4
•
5
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
APV motor terminal E (wiring
harness-side) and body GND
APV motor terminal A (wiring
harness-side) and body GND
Is there any continuity?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 9.
No Go to the next step.
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 9.
No Go to the next step.
Repair or replace the wiring harness for a
INSPECT APV POSITION SENSOR SIGNAL
Yes
possible short to power supply, then go to Step 9.
CIRCUIT FOR SHORT TO POWER SUPPLY
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Engine Diagnostics & Control
Page 327
•
•
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between APV
motor terminal A (wiring harness-side)
and body GND.
Is the voltage B+ ?
No Go to the next step.
Replace the APV motor, then go to Step 9.
INSPECT APV POSITION SENSOR
•
Inspect the APV position sensor.
(See AUXILIARY PORT VALVE
(APV) POSITION SENSOR
INSPECTION .)
6
•
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT APV POSITION SENSOR
CIRCUIT FOR OPEN CIRCUIT
•
•
8
•
9
(See INTAKE MANIFOLD
DISASSEMBLY/ASSEMBLY .)
No Go to the next step.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
7
Yes
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
APV motor terminal E (wiring
harness-side) and PCM terminal
1S (wiring harness-side)
APV motor terminal A (wiring
harness-side) and PCM terminal
3B (wiring harness-side)
APV motor terminal C (wiring
harness-side) and PCM terminal
1U (wiring harness-side)
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P2017 COMPLETED
Yes Repair or replace the terminal, then go to Step 9.
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 328
•
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the PENDING CODE same as DTC
present?
No Go to the next step.
Go to the applicable DTC inspection.
VERIFY AFTER REPAIR PROCEDURE
Yes
•
10
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 329
DTC P2070
DTC P2070
SSV stuck open
•
The PCM monitors the input signal from the SSV switch when the PCM turns the
SSV solenoid valve on. If the input signal is on, the PCM determines that the SSV
is stuck open.
Diagnostic support note
DETECTION
CONDITION
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction
condition during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
•
•
SSV stuck open
SSV control malfunction
SSV actuator malfunction
SSV solenoid valve malfunction
SSV switch malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 330
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT SSV CONTROL SYSTEM
OPERATION
•
3
•
Yes
Yes
•
No Go to the next step.
Inspect the SSV actuator.
Replace the intake manifold, then go to Step 7.
Yes
•
(See INTAKE MANIFOLD
REMOVAL/INSTALLATION .)
No Go to the next step.
Is there any malfunction ?
Replace the SSV solenoid valve, then go to Step
7.
INSPECT SSV SOLENOID VALVE
5
Repair or replace the malfunctioning part
according to the inspection results.
Is there any malfunction ?
(See SECONDARY SHUTTER
VALVE (SSV) ACTUATOR
INSPECTION .)
4
If the vehicle is not repaired, go to the next
step.
Then go to the Step 7.
INSPECT SSV ACTUATOR
•
•
No Go to the next step.
Perform the "SSV Operation
Inspection".
(See Secondary Shutter Valve (SSV)
Operation Inspection .)
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Inspect the SSV solenoid valve.
Yes
(See INTAKE-AIR SYSTEM HOSE ROUTING
DIAGRAM .)
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Engine Diagnostics & Control
Page 331
(See SECONDARY SHUTTER
VALVE (SSV) SOLENOID VALVE
INSPECTION .)
•
No Go to the next step.
Is there any malfunction ?
INSPECT SSV SWITCH
•
Inspect the SSV switch.
(See SECONDARY SHUTTER
VALVE (SSV) SWITCH
INSPECTION .)
6
•
Replace the SSV switch, then go to the next step.
Yes
(See SECONDARY SHUTTER VALVE (SSV)
SWITCH REMOVAL/INSTALLATION .)
No Go to the next step.
Is there any malfunction ?
VERIFY TROUBLESHOOTING OF DTC
P2070 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
7
•
•
•
Make sure to reconnect all
disconnected connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine and warm up it
completely.
Run the engine at high engine speed
and high load.
Is the PENDING CODE same as DTC
present?
No Go to the next step.
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
8
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE
.)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 332
DTC P2096
DTC P2096
Target A/F feedback system too lean
•
The PCM monitors the target A/F fuel trim when under the target A/F feedback
control. If the fuel trim is more than the specification, the PCM determines that the
target A/F feedback system is too lean.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
This is a continuous monitor (Fuel system).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Leakage exhaust gas
Rear HO2S malfunction
IAT sensor malfunction
ECT sensor malfunction
AIR system malfunction
Leakage intake-air
Front HO2S malfunction
MAF sensor malfunction
Fuel line pressure malfunction
Fuel pump unit malfunction
Leakage fuel
Ignition system malfunction
High-tension lead malfunction
Incorrect power supply to ignition coil
Ignition coil malfunction
Insufficient compression
Metering oil pump malfunction
Engine oil condition malfunction
Rised oil pressure
Oil passage malfunction
Engine malfunction
Fuel injector malfunction
PCM malfunction
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Engine Diagnostics & Control
Page 333
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins
and/or on-line repair information
availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE
OR STORED DTC
3
•
•
•
4
5
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Go to the DTC P0171 inspection.
Yes
(See DTC P0171 .)
Turn the ignition switch off, then to
If misfire DTC is present or drivability concern
the ON position (Engine off).
exists,
go to step 10.
Verify the related PENDING CODE
No
or stored DTCs.
If misfire DTC is not present and drivability concern
Is the DTC P0171 also present?
does not exist, go to the next step.
IDENTIFY TRIGGER DTC FOR FREEZE Yes Go to the next step.
FRAME DATA
Go to the FREEZE FRAME DATA DTC inspection.
• Is DTC P2096 on FREEZE FRAME No
DATA?
(See DTC TABLE .)
Yes Go to the next step.
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Engine Diagnostics & Control
Page 334
VERIFY CURRENT INPUT SIGNAL
STATUS OF REAR HO2S
•
•
•
•
•
Connect the WDS or equivalent to
the DLC-2.
Visually inspect for the the gas leakage between
Start the engine and warm it up
TWC and rear HO2S.
completely.
Access the O2S12 PID.
• If there is no leakage, replace the rear HO2S.
Read the O2S12 PID under
No
following accelerator pedal
condition (in PARK or NEUTRAL).
(See REAR HEATED OXYGEN SENSOR
(HO2S) REMOVAL/INSTALLATION .)
More than 0.55 V when
accelerator pedal is suddenly
depressed (rich condition).
Then go to Step 24.
Less than 0.55 V just after
release of accelerator pedal
(lean condition)
Is the PID normal?
VERIFY CURRENT INPUT SIGNAL
STATUS
•
•
Connect the WDS or equivalent to
the DLC-2.
Verify the following PIDs.
(See PCM INSPECTION .)
6
APP
ECT
MAF
TP
VSS
Are the PIDs normal?
•
7
Yes Go to the next step.
No
Inspect the malfunctioning part according to the
inspection results.
Then go to Step 24.
Yes Go to the next step.
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Engine Diagnostics & Control
Page 335
VERIFY CURRENT INPUT SIGNAL
STATUS UNDER FREEZE FRAME
DATA CONDITION
•
•
Connect the WDS or equivalent to
the DLC-2.
Verify the following PIDs under the
FREEZE FRAME DATA condition.
(See PCM INSPECTION .)
No
Inspect the malfunctioning part according to the
inspection results.
Then go to Step 24.
APP
ECT
MAF
TP
VSS
Are the PIDs normal?
•
INSPECT AIR SYSTEM OPERATION
•
8
Perform the "AIR System
Inspection".
(See Secondary Air Injection (AIR)
System Inspection .)
•
•
9
•
•
No
Repair or replace malfunctioning part according to
the inspection results.
Then go to Step 24.
Does AIR system operate properly?
VERIFY CURRENT INPUT SIGNAL
STATUS OF FRONT HO2S
•
Yes Go to the next step.
Inspect for air suction at followings due to cracks,
damages and loosening parts:
Connect the WDS or equivalent to
• From air cleaner to throttle body
• From throttle body to intake manifold
the DLC-2.
Start the engine and warm it up
• Vacuum hoses
completely.
Access the O2S11 PID.
Yes NOTE:
Read the O2S11 PID under
following accelerator pedal
• Engine speed may change when rust
condition (in PARK or NEUTRAL).
penetrating agent (cab cleaner etc.) is sprayed
Less than 1 mA when
on the air suction area.
accelerator pedal is suddenly
depressed (rich condition).
Repair or replace the malfunctioning part, then go to
More than 1 mA just after
Step 23.
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Engine Diagnostics & Control
Page 336
•
release of accelerator pedal
(lean condition)
Is the PID normal?
Visually inspect for the gas leakage between exhaust
manifold and front HO2S.
No
•
If there is no leakage, replace the front HO2S.
(See FRONT HEATED OXYGEN SENSOR
(HO2S) REMOVAL/INSTALLATION .)
Then go to Step 24.
VERIFY CURRENT INPUT SIGNAL
STATUS OF MAF SENSOR
•
10
•
•
•
•
Connect the WDS or equivalent to
the DLC-2.
Start the engine.
Access the MAF PID.
Verify that the MAF PID changes
quickly according to engine speed.
Is the PID normal?
INSPECT INTAKE-AIR SYSTEM FOR
EXCESSIVE AIR SUCTION
11
•
•
Visually inspect for loosen, cracks
or damages hoses in intake-air
system.
Is there any malfunction?
Yes Go to the next step.
Replace the MAF/IAT sensor, then go to Step 24.
No (See MASS AIR FLOW (MAF)/INTAKE AIR
TEMPERATURE (IAT) SENSOR
REMOVAL/INSTALLATION .)
Yes
Repair or replace the malfunctioning part, then go to
Step 24.
No Go to the next step.
INSPECT FUEL LINE PRESSURE
•
12
Perform the "FUEL LINE
PRESSURE INSPECTION".
•
Yes
(See FUEL LINE PRESSURE
INSPECTION .)
•
•
If the fuel line pressure is too low, go to the
next step.
If the fuel line pressure is too high, replace the
fuel pump unit, then go to Step 24.
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION .)
Is there any malfunction ?
No Go to Step 14.
INSPECT FUEL SYSTEM FOR FUEL
LEAKAGE
13
•
•
14
Visually inspect fuel leakage in the
fuel system.
Is there fuel leakage?
Yes
Repair or replace the malfunctioning part, then go to
Step 24.
Replace the fuel pump unit, then go to Step 24.
No
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION .)
Yes Go to Step 18.
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Engine Diagnostics & Control
Page 337
INSPECT IGNITION COIL OPERATION
AND HIGH-TENSION LEAD WITH
TIMING LIGHT
•
•
Inspect the blinking condition on
each high-tension lead using timing
light at idle.
Do all the high-tension leads show
blinking condition?
No Go to the next step.
INSPECT HIGH-TENSION LEAD OF NO
BLINKING HIGH-TENSION LEAD
Replace the malfunctioning high-tension lead, then
go to Step 23.
Yes
•
15
Inspect the high-tension leads.
(See HIGH-TENSION LEAD
INSPECTION .)
•
Is there any malfunction?
INSPECT IGNITION COIL POWER
CIRCUIT FOR OPEN CIRCUIT OR
SHORT TO GND
16
(See HIGH-TENSION LEAD
REMOVAL/INSTALLATION .)
•
•
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between
ignition coil terminal C (wiring
harness-side) and body GND.
Is the voltage B+ ?
No Go to the next step.
Yes Go to the next step.
No
Replace the ignition coil, then go to Step 24.
INSPECT IGNITION COIL
•
17
Inspect the ignition coil.
Repair or replace the wiring harness for a possible
open circuit or short to GND, then go to Step 24.
Yes
(See IGNITION COIL
REMOVAL/INSTALLATION .)
(See IGNITION COIL
INSPECTION .)
•
Is there any malfunction?
INSPECT ENGINE COMPRESSION
•
18
Yes Go to the next step.
Inspect the engine compression.
(See COMPRESSION
INSPECTION .)
•
No Go to the next step.
No Go to Step 23.
Is there any malfunction?
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Engine Diagnostics & Control
Page 338
INSPECT METERING OIL PUMP
•
19
Inspect the metering oil pump.
Repair or replace the malfunctioning part according
to the inspection results.
Yes
(See METERING OIL PUMP
INSPECTION .)
•
Is there any malfunction?
Overhaul or replace the engine.
Then go to Step 24.
No Go to the next step.
Yes Go to the next step.
Replace the engine oil.
INSPECT ENGINE OIL CONDITION
20
•
•
Inspect the engine oil condition.
Is the engine oil condition normal?
Inspect the ECT sensor and related harnesses.
No
(See ENGINE COOLANT TEMPERATURE (ECT)
SENSOR INSPECTION .)
Overhaul or replace the engine.
Then go to Step 24.
Repair or replace the malfunctioning part according
to the inspection results.
INSPECT OIL PRESSURE
•
21
Inspect the oil pressure.
Yes
(See OIL PRESSURE
INSPECTION .)
•
Is there any malfunction?
Then go to Step 24.
No Go to the next step.
Inspect and repair for leakage and/or clogged in oil
passage at engine.
INSPECT OIL PASSAGE
22
•
•
Inspect the oil pipe between
metering oil pump and metering oil
nozzle.
Is there any malfunction?
Overhaul or replace the engine.
Yes
Overhaul or replace the engine.
Then go to Step 25.
Overhaul or replace the engine.
No
Then go to Step 24.
Replace the fuel injector, then go to the next step.
INSPECT FUEL INJECTOR
•
23
Inspect the fuel injector.
Yes
(See FUEL INJECTOR
REMOVAL/INSTALLATION .)
(See FUEL INJECTOR
INSPECTION .)
•
Is there any malfunction?
No Go to the next step.
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Engine Diagnostics & Control
Page 339
24
VERIFY TROUBLESHOOTING OF DTC
Replace the PCM, then go to the next step.
P2096 COMPLETED
Yes
(See PCM REMOVAL/INSTALLATION .)
• Make sure to reconnect all
disconnected connectors.
• Clear the DTC from the PCM
memory using the WDS or
equivalent.
• Perform the "DRIVE MODE 1".
No Go to the next step.
(See OBD-II DRIVE MODE .)
•
Is the PENDING CODE same as
DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
25
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR
PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 340
DTC P2097
DTC P2097
Target A/F feedback system too rich
•
The PCM monitors the target A/F fuel trim when under the target A/F feedback
control. If the fuel trim is less than the specification, the PCM determines that the
target A/F feedback system is too rich.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
•
•
•
•
•
•
•
This is a continuous monitor (Fuel system).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Leakage exhaust gas
Rear HO2S malfunction
IAT sensor malfunction
ECT sensor malfunction
Front HO2S malfunction
Fuel pump speed control malfunction
Fuel line pressure malfunction
Fuel pump unit malfunction
Purge solenoid valve malfunction
Insufficient compression
Metering oil pump malfunction
Engine oil condition malfunction
Rised oil pressure
Oil passage malfunction
Engine malfunction
PCM malfunction
(w)
Engine Diagnostics & Control
Page 341
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE OR
STORED DTC
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Go to the DTC P0172 inspection.
Yes
(See DTC P0172 .)
3
•
•
•
Turn the ignition switch off, then to the
ON position (Engine off).
Verify the related PENDING CODE or
stored DTCs.
Is the DTC P0172 also present?
IDENTIFY TRIGGER DTC FOR FREEZE
FRAME DATA
4
5
•
Is DTC P2097 on FREEZE FRAME
DATA?
If misfire DTC is present or drivability concern
exists, go to step 11.
No
If misfire DTC is not present and drivability
concern does not exist, go to the next step.
Yes Go to the next step.
No
Go to the FREEZE FRAME DATA DTC
inspection.
(See DTC TABLE .)
Yes Go to the next step.
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Engine Diagnostics & Control
Page 342
VERIFY CURRENT INPUT SIGNAL
STATUS OF REAR HO2S
•
•
•
•
•
Connect the WDS or equivalent to the
Visually inspect for the the gas leakage between
DLC-2.
TWC and rear HO2S.
Start the engine and warm it up
completely.
• If there is no leakage, replace the rear
Access the O2S12 PID.
HO2S.
Read the O2S12 PID under following
No
accelerator pedal condition (in PARK
or NEUTRAL).
(See REAR HEATED OXYGEN
SENSOR (HO2S)
More than 0.55 V when
REMOVAL/INSTALLATION .)
accelerator pedal is suddenly
depressed (rich condition).
Less than 0.55 V just after
Then go to Step 17.
release of accelerator pedal (lean
condition)
Is the PID normal?
VERIFY CURRENT INPUT SIGNAL
STATUS
•
•
Connect the WDS or equivalent to the
DLC-2.
Verify the following PIDs.
(See PCM INSPECTION .)
6
APP
ECT
MAF
TP
VSS
Are the PIDs normal?
•
7
Yes Go to the next step.
No
Inspect the malfunctioning part according to the
inspection results.
Then go to Step 17.
Yes Go to the next step.
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Engine Diagnostics & Control
Page 343
VERIFY CURRENT INPUT SIGNAL
STATUS UNDER FREEZE FRAME DATA
CONDITION
•
•
Connect the WDS or equivalent to the
DLC-2.
Verify the following PIDs under the
FREEZE FRAME DATA condition.
(See PCM INSPECTION .)
No
Inspect the malfunctioning part according to the
inspection results.
Then go to Step 17.
APP
ECT
MAF
TP
VSS
Are the PIDs normal?
•
VERIFY CURRENT INPUT SIGNAL
STATUS OF FRONT HO2S
•
•
8
•
•
•
Connect the WDS or equivalent to the
DLC-2.
Start the engine and warm it up
completely.
Access the O2S11 PID.
Replace the front HO2S.
Read the O2S11 PID under following
accelerator pedal condition (in PARK
(See FRONT HEATED OXYGEN SENSOR
No
or NEUTRAL).
(HO2S) REMOVAL/INSTALLATION .)
Less than 1 mA when
accelerator pedal is suddenly
Then go to Step 17.
depressed (rich condition).
More than 1 mA just after
release of accelerator pedal (lean
condition)
Is the PID normal?
INSPECT FUEL PUMP SPEED CONTROL
OPERATION
•
9
Perform the "Fuel Pump Speed Control
Operation Inspection".
(See Fuel Pump Speed Control
Operation Inspection .)
•
Yes Go to the next step.
Yes
Repair or replace the malfunctioning part
according to the inspection results.
Then go to Step 17.
No Go to the next step.
Is there any malfunction?
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Engine Diagnostics & Control
Page 344
INSPECT FUEL LINE PRESSURE
•
Perform the "FUEL LINE PRESSURE
INSPECTION".
•
Yes
10
(See FUEL LINE PRESSURE
INSPECTION .)
•
•
If the fuel line pressure is too low, go to
the next step.
If the fuel line pressure is too high, replace
the fuel pump unit, then go to Step 17.
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION .)
Is there any malfunction ?
No Go to Step 13.
Inspect the purge solenoid valve.
INSPECT LONG TERM FUEL TRIM
•
11
•
•
•
Connect the WDS or equivalent to the
DLC-2.
Access the LONGFT1 PID.
Compare the LONGFT1 PID with
recorded FREEZE FRAME DATA at
Step 1.
Is the LONGFT1 PID above FREEZE
FRAME DATA?
(See PURGE SOLENOID VALVE INSPECTION
.)
Yes
•
If there is any malfunction, replace the
purge solenoid valve.
(See INTAKE-AIR SYSTEM HOSE
ROUTING DIAGRAM .)
Then go to Step 17.
No Go to the next step.
INSPECT ENGINE COMPRESSION
•
12
Yes Go to the next step.
Inspect the engine compression.
(See COMPRESSION INSPECTION .) No Go to Step 17.
•
Is there any malfunction?
Repair or replace the malfunctioning part
according to the inspection results.
INSPECT METERING OIL PUMP
•
13
(See METERING OIL PUMP
INSPECTION .)
Yes
Overhaul or replace the engine.
Then go to Step 17.
Is there any malfunction?
No Go to the next step.
INSPECT ENGINE OIL CONDITION
Yes Go to the next step.
•
14
Inspect the metering oil pump.
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Engine Diagnostics & Control
Page 345
Replace the engine oil.
•
•
Inspect the engine oil condition.
Is the engine oil condition normal?
Inspect the ECT sensor and related harnesses.
No
(See ENGINE COOLANT TEMPERATURE
(ECT) SENSOR INSPECTION .)
Overhaul or replace the engine.
Then go to Step 17.
INSPECT OIL PRESSURE
•
15
Inspect the oil pressure.
Repair or replace the malfunctioning part
according to the inspection results.
Yes
Overhaul or replace the engine.
(See OIL PRESSURE INSPECTION .)
Then go to Step 17.
•
Is there any malfunction?
INSPECT OIL PASSAGE
16
•
•
No Go to the next step.
Inspect and repair for leakage and/or clogged in
oil passage at engine.
Yes
Inspect the oil pipe between metering
oil pump and metering oil nozzle.
Is there any malfunction?
Overhaul or replace the engine.
Then go to the next step.
Overhaul or replace the engine.
No
Then go to the next step.
VERIFY TROUBLESHOOTING OF DTC
P2097 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
17
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the "DRIVE MODE 1".
(See OBD-II DRIVE MODE .)
•
18
No Go to the next step.
Is the PENDING CODE same as DTC
present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
(See DTC TABLE .)
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Engine Diagnostics & Control
Page 346
•
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
No DTC troubleshooting completed.
Are any DTCs present?
Notes:
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Engine Diagnostics & Control
Page 347
DTC P2101
DTC P2101
Drive-by-wire relay control circuit problem
•
•
DETECTION
CONDITION
Diagnostic support note
•
•
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
The PCM monitors the input voltage from the drive-by-wire relay when the PCM
turns the drive-by-wire relay on. If the input voltage is less than 5.0 V , the PCM
determines that the drive-by-wire relay control circuit voltage is low.
The PCM monitors the input voltage from the drive-by-wire relay when the PCM
turns the drive-by-wire relay off. If the input voltage is more than 5.0 V , the PCM
determines that the drive-by-wire relay control circuit voltage is high.
•
•
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Drive-by-wire relay malfunction
Connector or terminal malfunction
Open circuit in wiring harness between main relay terminal C and drive-by-wire
relay terminal A
Short to GND in wiring harness between main relay terminal C and drive-by-wire
relay terminal A
Open circuit in wiring harness between drive-by-wire relay terminal E and PCM
terminal 5H
Short to GND in wiring harness between drive-by-wire relay terminal E and PCM
terminal 5H
Open circuit in wiring harness between battery positive terminal and drive-by-wire
relay terminal D
Short to GND in wiring harness between battery positive terminal and drive-bywire relay terminal D
Open circuit in wiring harness between drive-by-wire relay terminal C and PCM
terminal 4C
Short to power supply in wiring harness between drive-by-wire relay terminal C
and PCM terminal 4C
Short to GND in wiring harness between drive-by-wire relay terminal C and PCM
terminal 4C
PCM malfunction
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Engine Diagnostics & Control
Page 348
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Engine Diagnostics & Control
Page 349
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT DRIVE-BY-WIRE RELAY
CONNECTOR FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the drive-by-wire relay
connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT DRIVE-BY-WIRE RELAY
POWER CIRCUIT FOR OPEN CIRCUIT OR
SHORT TO GND
•
•
4
•
5
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between the
following circuits:
Drive-by-wire relay terminal A
(wiring harness-side) and body
GND
Drive-by-wire relay terminal D
(wiring harness-side) and body
GND
Is the voltage B+ ?
INSPECT DRIVE-BY-WIRE RELAY
CIRCUIT FOR SHORT TO GND
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
10.
No Go to the next step.
Yes Go to the next step.
Repair or replace the wiring harness for a
No possible open circuit or short to GND, then go to
Step 10.
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 10.
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Engine Diagnostics & Control
Page 350
•
•
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Drive-by-wire relay terminal E
(wiring harness-side) and body
GND
Drive-by-wire relay terminal C
(wiring harness-side) and body
GND
Is there continuity?
INSPECT DRIVE-BY-WIRE RELAY
CIRCUIT FOR SHORT TO POWER SUPPLY
•
6
•
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between drive-bywire relay terminal C (wiring harnessside) and body GND.
Is the voltage B+ ?
No Go to the next step.
Repair or replace the wiring harness for a
Yes possible short to power supply, then go to Step
10.
No Go to the next step.
INSPECT DRIVE-BY-WIRE RELAY
•
7
Inspect the drive-by-wire relay.
(See RELAY LOCATION .)
(See RELAY INSPECTION .)
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
8
•
•
•
•
9
Yes
Replace the drive-by-wire relay, then go to Step
10.
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
10.
No Go to the next step.
Yes Go to the next step.
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Engine Diagnostics & Control
Page 351
INSPECT DRIVE-BY-WIRE RELAY
CONTROL CIRCUIT FOR OPEN CIRCUIT
•
•
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Drive-by-wire relay terminal E
(wiring harness-side) and PCM
terminal 5H (wiring harnessside)
Drive-by-wire relay terminal C
(wiring harness-side) and PCM
terminal 4C (wiring harnessside)
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P2101 COMPLETED
•
10
•
•
•
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
11
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 352
DTC P2106
DTC P2106
Throttle actuator control system-forced limited power
•
DETECTION
CONDITION
Diagnostic support note
•
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
The PCM monitors the throttle actuator control current when the ignition switch is
on. If the control current is less than 8 A or more than 11 A , the PCM determines
that the throttle actuator control system is under forced limited power.
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Throttle actuator malfunction
Connector or terminal malfunction
Open circuit in wiring harness between throttle body terminal A and PCM terminal
1B
Short to power supply in wiring harness between throttle body terminal A and
PCM terminal 1B
Short to GND in wiring harness between throttle body terminal A and PCM
terminal 1B
Open circuit in wiring harness between throttle body terminal B and PCM terminal
1C
Short to power supply in wiring harness between throttle body terminal B and
PCM terminal 1C
Short to GND in wiring harness between throttle body terminal B and PCM
terminal 1C
PCM malfunction
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Engine Diagnostics & Control
Page 353
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Engine Diagnostics & Control
Page 354
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT THROTTLE BODY CONNECTOR
FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the throttle body connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT THROTTLE ACTUATOR
CIRCUIT FOR SHORT TO GND
•
•
4
•
5
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Throttle body terminal A (wiring
harness-side) and body GND
Throttle body terminal B (wiring
harness-side) and body GND
Is there continuity?
INSPECT THROTTLE ACTUATOR
CIRCUIT FOR SHORT TO POWER SUPPLY
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 9.
No Go to the next step.
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 9.
No Go to the next step.
Yes
Repair or replace the wiring harness for a
possible short to power supply, then go to Step 9.
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Engine Diagnostics & Control
Page 355
•
•
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between the
following circuits:
Throttle body terminal A (wiring
harness-side) and body GND
Throttle body terminal B (wiring
harness-side) and body GND
Is the voltage B+ ?
No Go to the next step.
INSPECT THROTTLE ACTUATOR
•
6
Inspect the throttle actuator.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT THROTTLE ACTUATOR
CIRCUIT FOR OPEN CIRCUIT
•
•
8
•
9
Yes
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
(See Resistance Inspection .)
•
7
Replace the throttle body, then go to Step 9.
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Throttle body terminal A (wiring
harness-side) and PCM terminal
1B (wiring harness-side)
Throttle body terminal B (wiring
harness-side) and PCM terminal
1C (wiring harness-side)
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P2106 COMPLETED
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 9.
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 356
•
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the same DTC present?
No Go to the next step.
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
10
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 357
DTC P2107
DTC P2107
Throttle actuator control module processor error
•
Throttle actuator control module internal processor error.
Diagnostic support note
DETECTION
CONDITION
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in
the first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
Throttle actuator control module internal processor malfunction
•
•
•
POSSIBLE CAUSE
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Engine Diagnostics & Control
Page 358
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY TROUBLESHOOTING OF P2107
COMPLETED
•
3
•
•
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
4
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 359
DTC P2108
DTC P2108
Throttle actuator control module performance error
•
Throttle actuator control module internal communication error.
Diagnostic support note
DETECTION
CONDITION
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in
the first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
Throttle actuator control module malfunction
•
•
•
POSSIBLE CAUSE
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Engine Diagnostics & Control
Page 360
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY TROUBLESHOOTING OF P2108
COMPLETED
•
3
•
•
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
4
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 361
DTC P2109
DTC P2109
TP sensor minimum stop range/performance problem
•
DETECTION
CONDITION
POSSIBLE
CAUSE
The PCM monitors the minimum TP when the closed TP learning is completed. If
the TP is less than 11.5 % or more than 24.3 % , the PCM determines that there
is a TP sensor minimum stop range/performance problem.
Diagnostic support note
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
Drive-by-wire control system malfunction
Throttle actuator malfunction
Throttle valve malfunction
PCM malfunction
•
•
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Engine Diagnostics & Control
Page 362
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT DRIVE-BY-WIRE CONTROL
SYSTEM OPERATION
•
3
•
Yes
Yes
4
Repair or replace the malfunctioning part
according to the inspection results.
No Go to the next step.
Is there any malfunction ?
Inspect the throttle actuator.
Replace the throttle body, then go to Step 6.
Yes
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
(See Resistance Inspection .)
•
Is there any malfunction ?
No Go to the next step.
INSPECT THROTTLE VALVE
•
5
Inspect the throttle valve.
Replace the throttle body, then go to the next
step.
Yes
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
(See Throttle Valve Inspection .)
•
6
If the vehicle is not repaired, go to the next
step.
Then go to the Step 6.
INSPECT THROTTLE ACTUATOR
•
•
No Go to the next step.
Perform the "Drive-by-wire Control
System Inspection".
(See Drive-by-wire Control System
Inspection .)
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Is there any malfunction ?
VERIFY TROUBLESHOOTING OF DTC
P2109 COMPLETED
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 363
•
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
No Go to the next step.
using the WDS or equivalent.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
7
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 364
DTC P2112
DTC P2112
Throttle actuator control system range/performance problem
•
DETECTION
CONDITION
POSSIBLE
CAUSE
The PCM monitors the throttle actuator control duty ratio when the engine is
running. If the duty ratio is more than 95 % , the PCM determines that there is a
throttle actuator control system range/performance problem.
Diagnostic support note
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
Throttle actuator control module malfunction
•
•
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Engine Diagnostics & Control
Page 365
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY TROUBLESHOOTING OF P2112
COMPLETED
•
3
•
•
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
4
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 366
DTC P2119
DTC P2119
Throttle actuator control throttle body range/performance problem
•
The PCM compares the TP with default TP when the ignition switch is turned off.
If the TP is higher than the default TP, the PCM determines that there is a throttle
actuator control throttle body range/performance problem.
Diagnostic support note
DETECTION
CONDITION
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
Drive-by-wire control system malfunction
Throttle actuator malfunction
Throttle valve malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 367
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT DRIVE-BY-WIRE CONTROL
SYSTEM OPERATION
•
3
•
Yes
Yes
4
Repair or replace the malfunctioning part
according to the inspection results.
No Go to the next step.
Is there any malfunction ?
Inspect the throttle actuator.
Replace the throttle body, then go to Step 6.
Yes
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
(See Resistance Inspection .)
•
Is there any malfunction ?
No Go to the next step.
INSPECT THROTTLE VALVE
•
5
Inspect the throttle valve.
Replace the throttle body, then go to the next
step.
Yes
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
(See Throttle Valve Inspection .)
•
6
If the vehicle is not repaired, go to the next
step.
Then go to the Step 6.
INSPECT THROTTLE ACTUATOR
•
•
No Go to the next step.
Perform the "Drive-by-wire Control
System Inspection".
(See Drive-by-wire Control System
Inspection .)
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Is there any malfunction ?
VERIFY TROUBLESHOOTING OF DTC
P2119 COMPLETED
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 368
•
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Turn the ignition switch to the ON
position (Engine off), then off.
Is the same DTC present?
Go to the applicable DTC inspection.
VERIFY AFTER REPAIR PROCEDURE
Yes
•
7
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
(w)
Engine Diagnostics & Control
Page 369
DTC P2122
DTC P2122
APP sensor No.1 circuit low input
•
The PCM monitors the input voltage from the APP sensor No.1 when the engine
is running. If the input voltage is less than 0.3 V , the PCM determines that the
APP sensor No.1 circuit input voltage is low.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
APP sensor No.1 malfunction
Connector or terminal malfunction
Open circuit in wiring harness between APP sensor terminal D and PCM terminal
4Y
Short to GND in wiring harness between APP sensor terminal D and PCM
terminal 4Y
Open circuit in wiring harness between APP sensor terminal F and PCM terminal
5F
Short to GND in wiring harness between APP sensor terminal F and PCM
terminal 5F
PCM malfunction
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Engine Diagnostics & Control
Page 370
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Engine Diagnostics & Control
Page 371
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT APP SENSOR CONNECTOR FOR
POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the APP sensor connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT APP SENSOR NO.1 CIRCUIT FOR
SHORT TO GND
•
•
4
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
APP sensor terminal D (wiring
harness-side) and body GND
APP sensor terminal F (wiring
harness-side) and body GND
Is there any continuity?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
8.
No Go to the next step.
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 8.
No Go to the next step.
Replace the APP sensor, then go to Step 8.
5
INSPECT APP SENSOR NO.1
Yes
(See ACCELERATOR PEDAL
REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 372
•
Inspect the APP sensor No.1.
(See ACCELERATOR PEDAL
POSITION (APP) SENSOR
INSPECTION .)
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
6
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT APP SENSOR NO.1 CIRCUIT FOR
OPEN CIRCUIT
•
•
7
•
No Go to the next step.
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
APP sensor terminal D (wiring
harness-side) and PCM terminal
4Y (wiring harness-side)
APP sensor terminal F (wiring
harness-side) and PCM terminal
5F (wiring harness-side)
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P2122 COMPLETED
Yes
Repair or replace the terminal, then go to Step
8.
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
8
•
•
•
9
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
No Go to the next step.
Go to the applicable DTC inspection.
Yes
(See DTC TABLE .)
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Engine Diagnostics & Control
Page 373
•
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 374
DTC P2123
DTC P2123
APP sensor No.1 circuit high input
•
The PCM monitors the input voltage from the APP sensor No.1 when the engine is
running. If the input voltage is more than 4.8 V , the PCM determines that the
APP sensor No.1 circuit input voltage is high.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
APP sensor No.1 malfunction
Connector or terminal malfunction
Short to power supply in wiring harness between APP sensor terminal F and PCM
terminal 5F
Open circuit in wiring harness between APP sensor terminal E and PCM terminal
5AE
PCM malfunction
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Engine Diagnostics & Control
Page 375
(w)
Engine Diagnostics & Control
Page 376
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT APP SENSOR CONNECTOR FOR
POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the APP sensor connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT APP SENSOR NO.1 SIGNAL
CIRCUIT FOR SHORT TO POWER SUPPLY
•
4
•
•
Yes
No Go to the next step.
Repair or replace the wiring harness for a
Yes possible short to power supply, then go to Step
8.
Turn the ignition switch to the ON position
(Engine off).
Measure the voltage between APP sensor
terminal F (wiring harness-side) and body No Go to the next step.
GND.
Is the voltage B+ ?
Replace the APP sensor, then go to Step 8.
INSPECT APP SENSOR NO.1
•
5
Inspect the APP sensor No.1.
Yes
(See ACCELERATOR PEDAL
REMOVAL/INSTALLATION .)
(See ACCELERATOR PEDAL POSITION
(APP) SENSOR INSPECTION .)
•
6
Repair or replace the terminal, then go to Step
8.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
8.
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Engine Diagnostics & Control
Page 377
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT APP SENSOR NO.1 GND CIRCUIT
FOR OPEN CIRCUIT
7
•
•
•
8
Turn the ignition switch off.
Inspect for continuity between APP sensor
terminal E (wiring harness-side) and PCM
terminal 5AE (wiring harness-side).
Is there continuity?
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
VERIFY TROUBLESHOOTING OF DTC P2123
Replace the PCM, then go to the next step.
COMPLETED
Yes
(See PCM REMOVAL/INSTALLATION .)
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
• Start the engine.
• Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
9
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
(w)
Engine Diagnostics & Control
Page 378
DTC P2127
DTC P2127
APP sensor No.2 circuit low input
•
The PCM monitors the input voltage from the APP sensor No.2 when the engine
is running. If the input voltage is less than 0.3 V , the PCM determines that the
APP sensor No.2 circuit input voltage is low.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
APP sensor No.2 malfunction
Connector or terminal malfunction
Open circuit in wiring harness between APP sensor terminal A and PCM terminal
4X
Short to GND in wiring harness between APP sensor terminal A and PCM
terminal 4X
Open circuit in wiring harness between APP sensor terminal C and PCM terminal
5C
Short to GND in wiring harness between APP sensor terminal C and PCM
terminal 5C
PCM malfunction
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Engine Diagnostics & Control
Page 379
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Engine Diagnostics & Control
Page 380
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT APP SENSOR CONNECTOR FOR
POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the APP sensor connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT APP SENSOR NO.2 CIRCUIT FOR
SHORT TO GND
•
•
4
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
APP sensor terminal A (wiring
harness-side) and body GND
APP sensor terminal C (wiring
harness-side) and body GND
Is there any continuity?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
8.
No Go to the next step.
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 8.
No Go to the next step.
Replace the APP sensor, then go to Step 8.
5
INSPECT APP SENSOR NO.2
Yes
(See ACCELERATOR PEDAL
REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 381
•
Inspect the APP sensor No.2.
(See ACCELERATOR PEDAL
POSITION (APP) SENSOR
INSPECTION .)
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
6
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT APP SENSOR NO.2 CIRCUIT FOR
OPEN CIRCUIT
•
•
7
•
No Go to the next step.
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
APP sensor terminal A (wiring
harness-side) and PCM terminal
4X (wiring harness-side)
APP sensor terminal C (wiring
harness-side) and PCM terminal
5C (wiring harness-side)
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P2127 COMPLETED
Yes
Repair or replace the terminal, then go to Step
8.
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
8
•
•
•
9
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
No Go to the next step.
Go to the applicable DTC inspection.
Yes
(See DTC TABLE .)
(w)
Engine Diagnostics & Control
Page 382
•
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
No DTC troubleshooting completed.
Are any DTCs present?
Notes:
(w)
Engine Diagnostics & Control
Page 383
DTC P2128
DTC P2128
APP sensor No.2 circuit high input
•
The PCM monitors the input voltage from the APP sensor No.2 when the engine is
running. If the input voltage is more than 4.8 V , the PCM determines that the
APP sensor No.2 circuit input voltage is high.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
APP sensor No.2 malfunction
Connector or terminal malfunction
Short to power supply in wiring harness between APP sensor terminal C and PCM
terminal 5C
Open circuit in wiring harness between APP sensor terminal B and PCM terminal
5AB
PCM malfunction
(w)
Engine Diagnostics & Control
Page 384
(w)
Engine Diagnostics & Control
Page 385
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT APP SENSOR CONNECTOR FOR
POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the APP sensor connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT APP SENSOR NO.2 SIGNAL
CIRCUIT FOR SHORT TO POWER SUPPLY
•
4
•
•
Turn the ignition switch to the ON position
(Engine off).
Measure the voltage between APP sensor
terminal C (wiring harness-side) and body
GND.
Is the voltage B+ ?
Yes
No Go to the next step.
Repair or replace the wiring harness for a
Yes possible short to power supply, then go to Step
8.
No Go to the next step.
Replace the APP sensor, then go to Step 8.
INSPECT APP SENSOR NO.2
•
5
Yes
(See ACCELERATOR PEDAL
REMOVAL/INSTALLATION .)
(See ACCELERATOR PEDAL POSITION
(APP) SENSOR INSPECTION .)
•
6
Inspect the APP sensor No.2.
Repair or replace the terminal, then go to Step
8.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
8.
(w)
Engine Diagnostics & Control
Page 386
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT APP SENSOR NO.2 GND CIRCUIT
FOR OPEN CIRCUIT
7
•
•
•
8
Turn the ignition switch off.
Inspect for continuity between APP sensor
terminal B (wiring harness-side) and PCM
terminal 5AB (wiring harness-side).
Is there continuity?
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
VERIFY TROUBLESHOOTING OF DTC P2128
Replace the PCM, then go to the next step.
COMPLETED
Yes
(See PCM REMOVAL/INSTALLATION .)
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
• Start the engine.
• Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
9
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
(w)
Engine Diagnostics & Control
Page 387
DTC P2135
DTC P2135
TP sensor No.1/No.2 voltage correlation problem
•
DETECTION
CONDITION
Diagnostic support note
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the first
drive cycle.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
TP sensor No.1 malfunction
TP sensor No.2 malfunction
Connector or terminal malfunction
PCM malfunction
•
•
POSSIBLE
CAUSE
The PCM compares the input voltage from TP sensor No.1 with the input voltage
from TP sensor No.2 when the engine is running. If the difference is more than the
specification, the PCM determines that there is a TP sensor No.1/No.2 voltage
correlation problem.
(w)
Engine Diagnostics & Control
Page 388
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT THROTTLE BODY
CONNECTOR FOR POOR CONNECTION
3
•
•
•
•
Yes
4
Yes Repair or replace the terminal, then go to Step 6.
Turn the ignition switch off.
Disconnect the throttle body connector.
No Go to the next step.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
Inspect the TP sensor.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
•
•
•
•
6
If the vehicle is not repaired, go to the next
step.
Replace the throttle body, then go to Step 6.
Yes
(See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION .)
(See THROTTLE POSITION (TP)
SENSOR INSPECTION .)
•
5
•
No Go to the next step.
INSPECT TP SENSOR
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P2135 COMPLETED
No Go to the next step.
Yes
Repair or replace the terminal, then go to the next
step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 389
•
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
No Go to the next step.
using the WDS or equivalent.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
7
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
(w)
Engine Diagnostics & Control
Page 390
DTC P2136
DTC P2136
TP sensor No.1/No.3 voltage correlation problem
•
DETECTION
CONDITION
Diagnostic support note
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the first
drive cycle.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
PCM malfunction
•
•
POSSIBLE
CAUSE
The PCM compares the input voltage from TP sensor No.1 with the input voltage
from TP sensor No.3 (calculation value in PCM) when the engine is running. If the
difference is more than the specification, the PCM determines that there is a TP
sensor No.1/No.3 voltage correlation problem.
(w)
Engine Diagnostics & Control
Page 391
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY TROUBLESHOOTING OF P2136
COMPLETED
•
3
•
•
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
4
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
(w)
Engine Diagnostics & Control
Page 392
DTC P2138
DTC P2138
APP sensor No.1/No.2 voltage correlation problem
•
DETECTION
CONDITION
Diagnostic support note
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the first
drive cycle.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
APP sensor No.1 malfunction
APP sensor No.2 malfunction
Connector or terminal malfunction
PCM malfunction
•
•
POSSIBLE
CAUSE
The PCM compares the input voltage from APP sensor No.1 with the input voltage
from APP sensor No.2 when the engine is running. If the difference is more than the
specification, the PCM determines that there is an APP sensor No.1/No.2 voltage
correlation problem.
(w)
Engine Diagnostics & Control
Page 393
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
INSPECT APP SENSOR CONNECTOR FOR Yes Repair or replace the terminal, then go to Step 6.
POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the APP sensor connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
No Go to the next step.
INSPECT APP SENSOR
•
Inspect the APP sensor.
(See ACCELERATOR PEDAL
POSITION (APP) SENSOR
INSPECTION .)
4
•
•
•
•
•
Yes
(See ACCELERATOR PEDAL
REMOVAL/INSTALLATION .)
No Go to the next step.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
5
Replace the APP sensor, then go to Step 6.
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
Yes
Repair or replace the terminal, then go to the next
step.
No Go to the next step.
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Engine Diagnostics & Control
Page 394
VERIFY TROUBLESHOOTING OF DTC
P2138 COMPLETED
•
6
•
•
•
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
7
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 395
DTC P2195
DTC P2195
Front HO2S signal stuck lean
•
The PCM monitors the front HO2S output current when the following conditions
are met. If the average output current is more than 1.2 A for 25 s , the PCM
determines that the front HO2S signal remains lean.
MONITORING CONDITION
DETECTION
CONDITION
ECT: more than 70 °C {158 °F}
Engine speed: 1,000
3,200 rpm
MAF amount: 6
80 g/s {0.80
10.58 lb/min}
Target A/F feedback system status: feedback control
Input voltage from the rear HO2S: more than 0.7 V
Diagnostic support note
•
•
This is an intermittent monitor (HO2S).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
Front HO2S malfunction
Fuel injector malfunction
Fuel line pressure malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 396
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE OR
STORED DTC
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Go to the appropriate DTC inspection.
Yes
(See DTC TABLE .)
3
•
•
•
Turn the ignition switch off, then to the
ON position (Engine off).
Verify the related PENDING CODE or
stored DTCs.
Are other DTCs present?
IDENTIFY TRIGGER DTC FOR FREEZE
FRAME DATA
4
•
Is DTC P2195 on FREEZE FRAME
DATA?
VERIFY CURRENT INPUT SIGNAL
STATUS
•
•
5
Yes Go to the next step.
No
Go to the FREEZE FRAME DATA DTC
inspection.
(See DTC TABLE .)
Yes Go to the next step.
Connect the WDS or equivalent to the
DLC-2.
Verify the following PIDs.
(See PCM INSPECTION .)
ECT
MAF
O2S12
RPM
Are the PIDs normal?
•
No Go to the next step.
No
Inspect the malfunctioning part according to the
inspection results.
Then go to Step 10.
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Engine Diagnostics & Control
Page 397
VERIFY CURRENT INPUT SIGNAL
STATUS UNDER FREEZE FRAME DATA
CONDITION
•
•
6
Yes Go to the next step.
Connect the WDS or equivalent to the
DLC-2.
Verify the following PIDs under the
FREEZE FRAME DATA condition.
(See PCM INSPECTION .)
No
Then go to Step 10.
ECT
MAF
O2S12
RPM
Are the PIDs normal?
•
Replace the front HO2S, then go to Step 10.
INSPECT FRONT HO2S
•
7
Inspect the front HO2S.
Yes
(See FRONT HEATED OXYGEN SENSOR
(HO2S) REMOVAL/INSTALLATION .)
(See FRONT HEATED OXYGEN
SENSOR (HO2S) INSPECTION .)
•
Is there any malfunction ?
No Go to the next step.
INSPECT FUEL INJECTOR
•
8
Inspect the fuel injector.
Replace the fuel injector, then go to Step 10.
Yes
(See FUEL INJECTOR
REMOVAL/INSTALLATION .)
(See FUEL INJECTOR INSPECTION .)
•
Is there any malfunction?
No Go to the next step.
INSPECT FUEL LINE PRESSURE
•
9
Perform the "FUEL LINE PRESSURE
INSPECTION".
(See FUEL LINE PRESSURE
INSPECTION .)
•
10
Inspect the malfunctioning part according to the
inspection results.
Yes
Inspect the malfunctioning part according to the
inspection results.
Then go to the next step.
No Go to the next step.
Is there any malfunction ?
VERIFY TROUBLESHOOTING OF DTC
P2195 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 398
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 3.
No Go to the next step.
(See OBD-II DRIVE MODE .)
•
Is the PENDING CODE same as DTC
present?
Go to the applicable DTC inspection.
VERIFY AFTER REPAIR PROCEDURE
Yes
•
11
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 399
DTC P2196
DTC P2196
Front HO2S signal stuck rich
•
The PCM monitors the front HO2S output current when the following conditions
are met. If the average output current is less than 0.8 A for 25 s , the PCM
determines that the front HO2S signal remains rich.
MONITORING CONDITION
DETECTION
CONDITION
ECT: more than 70 °C {158 °F}
Engine speed: 1,000
3,200 rpm
MAF amount: 6
80 g/s {0.80
10.58 lb/min}
Target A/F feedback system status: feedback control
Input voltage from the rear HO2S: less than 0.2 V
Diagnostic support note
•
•
This is an intermittent monitor (HO2S).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
Front HO2S malfunction
Fuel injector malfunction
Fuel line pressure malfunction
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 400
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE OR
STORED DTC
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Go to the appropriate DTC inspection.
Yes
(See DTC TABLE .)
3
•
•
•
Turn the ignition switch off, then to the
ON position (Engine off).
Verify the related PENDING CODE or
stored DTCs.
Are other DTCs present?
IDENTIFY TRIGGER DTC FOR FREEZE
FRAME DATA
4
•
Is DTC P2196 on FREEZE FRAME
DATA?
VERIFY CURRENT INPUT SIGNAL
STATUS
•
•
5
Yes Go to the next step.
No
Go to the FREEZE FRAME DATA DTC
inspection.
(See DTC TABLE .)
Yes Go to the next step.
Connect the WDS or equivalent to the
DLC-2.
Verify the following PIDs.
(See PCM INSPECTION .)
ECT
MAF
O2S12
RPM
Are the PIDs normal?
•
No Go to the next step.
No
Inspect the malfunctioning part according to the
inspection results.
Then go to Step 10.
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Engine Diagnostics & Control
Page 401
VERIFY CURRENT INPUT SIGNAL
STATUS UNDER FREEZE FRAME DATA
CONDITION
•
•
6
Yes Go to the next step.
Connect the WDS or equivalent to the
DLC-2.
Verify the following PIDs under the
FREEZE FRAME DATA condition.
(See PCM INSPECTION .)
No
Then go to Step 10.
ECT
MAF
O2S12
RPM
Are the PIDs normal?
•
Replace the front HO2S, then go to Step 10.
INSPECT FRONT HO2S
•
7
Inspect the front HO2S.
Yes
(See FRONT HEATED OXYGEN SENSOR
(HO2S) REMOVAL/INSTALLATION .)
(See FRONT HEATED OXYGEN
SENSOR (HO2S) INSPECTION .)
•
Is there any malfunction ?
No Go to the next step.
INSPECT FUEL INJECTOR
•
8
Inspect the fuel injector.
Replace the fuel injector, then go to Step 10.
Yes
(See FUEL INJECTOR
REMOVAL/INSTALLATION .)
(See FUEL INJECTOR INSPECTION .)
•
Is there any malfunction?
No Go to the next step.
INSPECT FUEL LINE PRESSURE
•
9
Perform the "FUEL LINE PRESSURE
INSPECTION".
(See FUEL LINE PRESSURE
INSPECTION .)
•
10
Inspect the malfunctioning part according to the
inspection results.
Yes
Inspect the malfunctioning part according to the
inspection results.
Then go to the next step.
No Go to the next step.
Is there any malfunction ?
VERIFY TROUBLESHOOTING OF DTC
P2196 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 402
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 3.
No Go to the next step.
(See OBD-II DRIVE MODE .)
•
Is the PENDING CODE same as DTC
present?
Go to the applicable DTC inspection.
VERIFY AFTER REPAIR PROCEDURE
Yes
•
11
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 403
DTC P22XX
DTC P2257
DTC P2257
AIR pump relay control circuit low
•
The PCM monitors the AIR pump relay control voltage when the AIR pump is not
operating. If the control voltage is less than 5.8 V , the PCM determines that the
AIR pump relay control circuit voltage is low.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
AIR pump relay malfunction
Connector or terminal malfunction
Open circuit in wiring harness between main relay terminal C and AIR pump relay
terminal E
Short to GND in wiring harness between main relay terminal C and AIR pump
relay terminal E
Open circuit in wiring harness between AIR pump relay terminal A and PCM
terminal 4O
Short to GND in wiring harness between AIR pump relay terminal A and PCM
terminal 4O
PCM malfunction
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Engine Diagnostics & Control
Page 404
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Engine Diagnostics & Control
Page 405
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT AIR PUMP RELAY CONNECTOR
FOR POOR CONNECTION
3
•
•
•
•
Yes
Repair or replace the terminal, then go to Step
9.
Turn the ignition switch off.
Disconnect the AIR pump relay connector.
Inspect for poor connection (such as
No Go to the next step.
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT AIR PUMP RELAY POWER
Yes Go to the next step.
CIRCUIT FOR OPEN CIRCUIT OR SHORT TO
GND
4
•
•
•
Turn the ignition switch to the ON position
Repair or replace the wiring harness for a
(Engine off).
No
possible
open circuit or short to GND, then go
Measure the voltage between AIR pump
to Step 9.
relay terminal E (wiring harness-side) and
body GND.
Is the voltage B+ ?
INSPECT AIR PUMP RELAY CONTROL
CIRCUIT FOR SHORT TO GND
5
•
•
•
Turn the ignition switch off.
Inspect for continuity between AIR pump
relay terminal A (wiring harness-side) and
body GND.
Is there continuity?
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 9.
No Go to the next step.
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Engine Diagnostics & Control
Page 406
INSPECT AIR PUMP RELAY
•
6
Inspect the AIR pump relay.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT AIR PUMP RELAY CONTROL
CIRCUIT FOR OPEN CIRCUIT
8
(See RELAY LOCATION .)
(See RELAY INSPECTION .)
•
7
Yes
•
•
•
Turn the ignition switch off.
Inspect for continuity between AIR pump
relay terminal A (wiring harness-side) and
PCM terminal 4O (wiring harness-side).
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P2257 COMPLETED
Replace the AIR pump relay , then go to Step
9.
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
9.
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
9
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the PENDING CODE same as DTC
present?
No Go to the next step.
Go to the applicable DTC inspection.
VERIFY AFTER REPAIR PROCEDURE
Yes
•
10
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
(w)
Engine Diagnostics & Control
Page 407
DTC P2258
DTC P2258
AIR pump relay control circuit high
•
The PCM monitors the AIR pump relay control voltage when the AIR pump is
operating. If the control voltage is more than 11.5 V , the PCM determines that
the AIR pump relay control circuit voltage is high.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
AIR pump relay malfunction
Connector or terminal malfunction
Short to power supply in wiring harness between AIR pump relay terminal A and
PCM terminal 4O
PCM malfunction
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Engine Diagnostics & Control
Page 408
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Engine Diagnostics & Control
Page 409
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT AIR PUMP RELAY CONNECTOR
FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the AIR pump relay
connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT AIR PUMP RELAY CONTROL
CIRCUIT FOR SHORT TO POWER SUPPLY
•
4
•
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between AIR pump
relay terminal A (wiring harness-side)
and body GND.
Is the voltage B+ ?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
7.
No Go to the next step.
Repair or replace the wiring harness for a
Yes possible short to power supply, then go to Step
7.
No Go to the next step.
INSPECT AIR PUMP RELAY
Replace the AIR pump relay , then go to Step 7.
Yes
•
5
(See RELAY LOCATION .)
(See RELAY INSPECTION .)
•
6
Inspect the AIR pump relay.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
No Go to the next step.
Yes
Repair or replace the terminal, then go to the
next step.
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Engine Diagnostics & Control
Page 410
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P2258 COMPLETED
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
7
•
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Soak the vehicle in a place that is at a
temperature of approx. 25 °C {77 °F} for
more than 6 hours .
No Go to the next step.
Start the engine.
Verify the SAIR_EVAL PID to Yes.
If not, soak the vehicle again.
Is the PENDING CODE same as DTC
present?
Go to the applicable DTC inspection.
VERIFY AFTER REPAIR PROCEDURE
Yes
•
8
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 411
DTC P2259
DTC P2259
AIR solenoid valve control circuit low
•
The PCM monitors the AIR solenoid valve control voltage when the AIR pump is
not operating. If the control voltage is less than 5.8 V , the PCM determines that
the AIR solenoid valve control circuit voltage is low.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
AIR solenoid valve malfunction
Connector or terminal malfunction
Open circuit in wiring harness between main relay terminal C and AIR solenoid
valve terminal A
Short to GND in wiring harness between main relay terminal C and AIR solenoid
valve terminal A
Open circuit in wiring harness between AIR solenoid valve terminal B and PCM
terminal 1O
Short to GND in wiring harness between AIR solenoid valve terminal B and PCM
terminal 1O
PCM malfunction
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Engine Diagnostics & Control
Page 412
(w)
Engine Diagnostics & Control
Page 413
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT AIR SOLENOID VALVE
CONNECTOR FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the AIR solenoid valve
connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
Yes
Repair or replace the terminal, then go to Step
9.
No Go to the next step.
INSPECT AIR SOLENOID VALVE POWER
Yes Go to the next step.
CIRCUIT FOR OPEN CIRCUIT OR SHORT TO
GND
4
•
•
•
Turn the ignition switch to the ON position
Repair or replace the wiring harness for a
(Engine off).
Measure the voltage between AIR solenoid No possible open circuit or short to GND, then go
to Step 9.
valve terminal A (wiring harness-side) and
body GND.
Is the voltage B+ ?
Repair or replace the wiring harness for a
INSPECT AIR SOLENOID VALVE CONTROL
Yes
possible short to GND, then go to Step 9.
CIRCUIT FOR SHORT TO GND
5
•
•
•
Turn the ignition switch off.
Inspect for continuity between AIR
solenoid valve terminal B (wiring harness- No Go to the next step.
side) and body GND.
Is there continuity?
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Engine Diagnostics & Control
Page 414
INSPECT AIR SOLENOID VALVE
•
Inspect the AIR solenoid valve.
Yes
(See SECONDARY AIR INJECTION
(AIR) SOLENOID VALVE
INSPECTION .)
6
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
7
Replace the AIR solenoid valve, then go to
Step 9.
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
(See SECONDARY AIR INJECTION (AIR)
SOLENOID VALVE
REMOVAL/INSTALLATION .)
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
9.
No Go to the next step.
INSPECT AIR SOLENOID VALVE CONTROL Yes Go to the next step.
CIRCUIT FOR OPEN CIRCUIT
8
•
•
•
Turn the ignition switch off.
Inspect for continuity between AIR
solenoid valve terminal B (wiring harness- No Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
side) and PCM terminal 1O (wiring
harness-side).
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P2259 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
9
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the PENDING CODE same as DTC
present?
No Go to the next step.
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
10
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 415
DTC P2260
DTC P2260
AIR solenoid valve control circuit high
•
The PCM monitors the AIR solenoid valve control voltage when the AIR pump is
operating. If the control voltage is more than 11.5 V , the PCM determines that
the AIR solenoid valve control circuit voltage is high.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
AIR solenoid valve malfunction
Connector or terminal malfunction
Short to power supply in wiring harness between AIR solenoid valve terminal B
and PCM terminal 1O
PCM malfunction
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Engine Diagnostics & Control
Page 416
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT AIR SOLENOID VALVE
CONNECTOR FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the AIR solenoid valve
connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT AIR SOLENOID VALVE
CONTROL CIRCUIT FOR SHORT TO
POWER SUPPLY
4
•
•
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between AIR
solenoid valve terminal B (wiring
harness-side) and body GND.
Is the voltage B+ ?
Yes
•
Inspect the AIR solenoid valve.
(See SECONDARY AIR INJECTION
(AIR) SOLENOID VALVE
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 7.
No Go to the next step.
Yes
Repair or replace the wiring harness for a
possible short to power supply, then go to Step 7.
No Go to the next step.
Replace the AIR solenoid valve, then go to Step
7.
INSPECT AIR SOLENOID VALVE
5
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
(See SECONDARY AIR INJECTION (AIR)
SOLENOID VALVE
REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 417
(AIR) SOLENOID VALVE
INSPECTION .)
No Go to the next step.
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
6
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P2260 COMPLETED
•
•
7
•
•
•
•
Yes
Repair or replace the terminal, then go to the next
step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Soak the vehicle in a place that is at a
temperature of approx. 25 °C {77 °F}
for more than 6 hours .
No Go to the next step.
Start the engine.
Verify the SAIR_EVAL PID to Yes.
If not, soak the vehicle again.
Is the PENDING CODE same as DTC
present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
8
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 418
DTC P2270
DTC P2270
Rear HO2S signal stuck lean
•
The PCM monitors the input voltage from the rear HO2S when the following
conditions are met. If the input voltage is more than 0.9 V for 40 s , the PCM
determines that the rear HO2S signal remains lean.
MONITORING CONDITION
DETECTION
CONDITION
ECT: more than 70 °C {158 °F}
Engine speed: more than 1,500 rpm
MAF amount: more than 10 g/s {1.32 lb/min}
Short term fuel trim: -20
20 %
Long term fuel trim: -15
15 %
Target A/F feedback system status: feedback control
Diagnostic support note
•
•
This is an intermittent monitor (HO2S).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
•
•
Leakage exhaust gas
Rear HO2S malfunction
Purge solenoid valve malfunction
Fuel injector malfunction
Leakage engine coolant
PCM malfunction
•
•
•
POSSIBLE
CAUSE
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Engine Diagnostics & Control
Page 419
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE OR
STORED DTC
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Go to the appropriate DTC inspection.
Yes
(See DTC TABLE .)
3
•
•
•
Turn the ignition switch off, then to the
ON position (Engine off).
Verify the related PENDING CODE or
stored DTCs.
Are other DTCs present?
IDENTIFY TRIGGER DTC FOR FREEZE
FRAME DATA
4
5
•
Is DTC P2270 on FREEZE FRAME
DATA?
No Go to the next step.
Yes Go to the next step.
No
Go to the FREEZE FRAME DATA DTC
inspection.
(See DTC TABLE .)
Yes Go to the next step.
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Engine Diagnostics & Control
Page 420
VERIFY CURRENT INPUT SIGNAL
STATUS OF REAR HO2S
•
•
•
•
•
Connect the WDS or equivalent to the
Visually inspect for the the exhaust gas leakage
DLC-2.
between TWC and rear HO2S.
Start the engine and warm it up
completely.
• If there is no leakage, replace the rear
Access the O2S12 PID.
HO2S.
Read the O2S12 PID under following
accelerator pedal conditions (in PARK No
or NEUTRAL).
(See REAR HEATED OXYGEN
SENSOR (HO2S)
More than 0.55 V when
REMOVAL/INSTALLATION .)
suddenly depress accelerator
pedal (rich condition).
Less than 0.55 V just after
Then go to Step 10.
release of accelerator pedal (lean
condition).
Is the PID normal?
INSPECT FUEL LINE PRESSURE
•
6
Perform the "FUEL LINE PRESSURE
INSPECTION".
(See FUEL LINE PRESSURE
INSPECTION .)
•
Yes Go to the next step.
No Go to Step 10.
Is there any malfunction ?
Replace the purge solenoid valve, then go to Step
10.
INSPECT PURGE SOLENOID VALVE
•
7
Inspect the purge solenoid valve.
Yes
(See INTAKE-AIR SYSTEM HOSE ROUTING
DIAGRAM .)
(See PURGE SOLENOID VALVE
INSPECTION .)
•
Is there any malfunction?
No Go to the next step.
Replace the fuel injector, then go to Step 10.
INSPECT FUEL INJECTOR
•
8
Inspect the fuel injector.
Yes
(See FUEL INJECTOR
REMOVAL/INSTALLATION .)
(See FUEL INJECTOR INSPECTION
.)
•
Is there any malfunction?
No Go to the next step.
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Engine Diagnostics & Control
Page 421
INSPECT ENGINE COOLANT PASSAGE
FOR ENGINE COOLANT LEAKAGE
•
9
Perform the "ENGINE COOLANT
LEAKAGE INSPECTION".
(See ENGINE COOLANT LEAKAGE
INSPECTION .)
•
Yes
Repair or replace the malfunctioning part
according to the inspection results.
Then go to the next step.
No Go to the next step.
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P2270 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
10
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 3.
(See OBD-II DRIVE MODE .)
•
No Go to the next step.
Is the PENDING CODE same as DTC
present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
11
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 422
DTC P2271
DTC P2271
Rear HO2S signal stuck rich
•
The PCM monitors the input voltage from the rear HO2S when the following
conditions are met. If the input voltage is less than 0.4 V for 40 s , the PCM
determines that the rear HO2S signal remains rich.
MONITORING CONDITION
DETECTION
CONDITION
ECT: more than 70 °C {158 °F}
Engine speed: more than 1,500 rpm
MAF amount: more than 10 g/s {1.32 lb/min}
Short term fuel trim: -20
20 %
Long term fuel trim: -15
15 %
Target A/F feedback system status: feedback control
Diagnostic support note
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
•
•
•
•
•
•
•
•
This is an intermittent monitor (HO2S).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
Front HO2S malfunction
Rear HO2S malfunction
Front HO2S heater malfunction
Rear HO2S heater malfunction
Fuel pump control malfunction
Fuel pressure malfunction
Fuel injector malfunction
Leakage exhaust gas
Purge solenoid valve malfunction
Purge solenoid valve hoses improper connection
AIR system malfunction
Insufficient compression
Engine oil malfunction
Rised oil pressure
Metering oil pump malfunction
Metering oil pump control malfunction
Engine malfunction
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Engine Diagnostics & Control
Page 423
•
PCM malfunction
Notes:
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Engine Diagnostics & Control
Page 424
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
VERIFY RELATED PENDING CODE OR
STORED DTC
3
•
•
•
5
•
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Go to the appropriate DTC inspection.
Yes
(See DTC TABLE .)
Turn the ignition switch off, then to
the ON position (Engine off).
Verify the related PENDING CODE or
No Go to the next step.
stored DTCs.
Are other DTCs present?
IDENTIFY TRIGGER DTC FOR FREEZE
FRAME DATA
4
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
Is DTC P2271 on FREEZE FRAME
DATA?
Yes Go to the next step.
No
Go to the FREEZE FRAME DATA DTC
inspection.
(See DTC TABLE .)
Yes Go to the next step.
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Engine Diagnostics & Control
Page 425
VERIFY CURRENT INPUT SIGNAL
STATUS OF REAR HO2S
•
•
•
•
•
Connect the WDS or equivalent to the
DLC-2.
Start the engine and warm it up
completely.
Access the O2S12 PID.
Read the O2S12 PID under following
accelerator pedal condition (in PARK
or NEUTRAL).
More than 0.55 V when
accelerator pedal is suddenly
depressed (rich condition).
Less than 0.55 V just after
release of accelerator pedal
(lean condition)
Is the PID normal?
Visually inspect for the the gas leakage between
TWC and rear HO2S.
•
No
(See REAR HEATED OXYGEN SENSOR
(HO2S) REMOVAL/INSTALLATION .)
Then go to Step 21.
Replace the purge solenoid valve, then go to Step
21.
INSPECT PURGE SOLENOID VALVE
•
6
Inspect the purge solenoid valve.
Yes
(See INTAKE-AIR SYSTEM HOSE ROUTING
DIAGRAM .)
(See PURGE SOLENOID VALVE
INSPECTION .)
Is there any malfunction?
No Go to the next step.
INSPECT AIR SYSTEM OPERATION
Yes Go to the next step.
•
•
7
Perform the "AIR System Inspection".
(See Secondary Air Injection (AIR)
System Inspection .)
•
•
8
Repair or replace malfunctioning part according to
the inspection results.
Then go to Step 21
Yes Go to the next step.
Perform the "FUEL LINE PRESSURE
INSPECTION".
(See FUEL LINE PRESSURE
INSPECTION .)
•
No
Does AIR system operate properly?
INSPECT FUEL LINE PRESSURE
9
If there is no leakage, replace the rear
HO2S.
No Go to Step 10.
Is there any malfunction ?
INSPECT FUEL SYSTEM FOR FUEL
LEAKAGE
Yes
Repair or replace the malfunctioning part, then go
to Step 21.
(w)
Engine Diagnostics & Control
Page 426
•
•
Visually inspect fuel leakage in the
fuel system.
Is there fuel leakage?
INSPECT IGNITION COIL OPERATION
AND HIGH-TENSION LEAD WITH
TIMING LIGHT
10
•
•
Inspect the blinking condition on each
high-tension lead using timing light at
idle.
Do all the high-tension leads show
blinking condition?
Replace the fuel pump unit, then go to Step 21.
No
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION .)
Yes Go to Step 14.
No Go to the next step.
INSPECT HIGH-TENSION LEAD OF NO
BLINKING HIGH-TENSION LEAD
Replace the malfunctioning high-tension lead, then
go to Step 24.
Yes
•
11
Inspect the high-tension leads.
(See HIGH-TENSION LEAD
REMOVAL/INSTALLATION .)
(See HIGH-TENSION LEAD
INSPECTION .)
•
Is there any malfunction?
No Go to the next step.
INSPECT IGNITION COIL POWER
Yes Go to the next step.
CIRCUIT FOR OPEN CIRCUIT OR SHORT
TO GND
12
•
•
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between ignition
coil terminal C (wiring harness-side)
and body GND.
Is the voltage B+ ?
No
Replace the ignition coil, then go to Step 21.
INSPECT IGNITION COIL
•
13
Yes
(See IGNITION COIL
REMOVAL/INSTALLATION .)
(See IGNITION COIL INSPECTION
.)
•
14
Inspect the ignition coil.
Repair or replace the wiring harness for a possible
open circuit or short to GND, then go to Step 21.
Is there any malfunction?
INSPECT ENGINE COMPRESSION
No Go to the next step.
Yes Go to the next step.
(w)
Engine Diagnostics & Control
Page 427
•
Inspect the engine compression.
(See COMPRESSION INSPECTION
.)
•
No Go to Step 19.
Is there any malfunction?
Repair or replace the malfunctioning part
according to the inspection results.
INSPECT METERING OIL PUMP
•
15
Inspect the metering oil pump.
Yes
(See METERING OIL PUMP
INSPECTION .)
•
Is there any malfunction?
Overhaul or replace the engine.
Then go to Step 21.
No Go to the next step.
Yes Go to the next step.
Replace the engine oil.
INSPECT ENGINE OIL CONDITION
16
•
•
Inspect the engine oil condition.
Is the engine oil condition normal?
Inspect the ECT sensor and related harnesses.
No
(See ENGINE COOLANT TEMPERATURE
(ECT) SENSOR INSPECTION .)
Overhaul or replace the engine.
Then go to Step 21.
Repair or replace the malfunctioning part
according to the inspection results.
INSPECT OIL PRESSURE
•
17
Inspect the oil pressure.
(See OIL PRESSURE INSPECTION
.)
•
Is there any malfunction?
INSPECT OIL PASSAGE
18
Yes
•
•
Overhaul or replace the engine.
Then go to Step 21.
No Go to the next step.
Inspect and repair for leakage and/or clogged in oil
passage at engine.
Yes
Inspect the oil pipe between metering
oil pump and metering oil nozzle.
Is there any malfunction?
Overhaul or replace the engine.
Then go to Step 21.
Overhaul or replace the engine.
No
Then go to Step 21.
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Engine Diagnostics & Control
Page 428
INSPECT FUEL INJECTOR
•
19
Inspect the fuel injector.
Replace the fuel injector, then go to Step 21.
Yes
(See FUEL INJECTOR INSPECTION
.)
•
Is there any malfunction?
INSPECT ENGINE COOLANT PASSAGE
FOR ENGINE COOLANT LEAKAGE
•
20
(See FUEL INJECTOR
REMOVAL/INSTALLATION .)
No Go to the next step.
Yes
Repair or replace the malfunctioning part
according to the inspection results.
Then go to the next step.
Perform the "ENGINE COOLANT
LEAKAGE INSPECTION".
(See ENGINE COOLANT LEAKAGE
INSPECTION .)
No Go to the next step.
•
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P2271 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
21
•
Make sure to reconnect all
disconnected connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 3.
(See OBD-II DRIVE MODE .)
•
No Go to the next step.
Is the PENDING CODE same as DTC
present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
22
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE
.)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
(w)
Engine Diagnostics & Control
Page 429
DTC P24XX
DTC P2401
DTC P2401
EVAP system leak detection pump control circuit low
•
The PCM monitors the pump load current (EVAP line pressure) when the
evaporative leak monitor is operating. If the pump load current is less than the
specification, the PCM determines that the EVAP system leak detection pump
control circuit voltage is low.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is an intermittent monitor (EVAP system).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
EVAP system leak detection pump malfunction
Connector or terminal malfunction
Open circuit in wiring harness between main relay terminal C and EVAP system
leak detection pump terminal A
Short to GND in wiring harness between main relay terminal C and EVAP system
leak detection pump terminal A
Open circuit in wiring harness between EVAP system leak detection pump terminal
D and PCM terminal 4D
Short to GND in wiring harness between EVAP system leak detection pump
terminal D and PCM terminal 4D
PCM malfunction
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Engine Diagnostics & Control
Page 430
(w)
Engine Diagnostics & Control
Page 431
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT EVAP SYSTEM LEAK DETECTION
PUMP CONNECTOR FOR POOR
CONNECTION
3
•
•
•
•
•
•
•
5
Repair or replace the terminal, then go to
Step 9.
Turn the ignition switch off.
Disconnect the EVAP system leak detection
pump connector.
No Go to the next step.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT EVAP SYSTEM LEAK DETECTION
PUMP POWER CIRCUIT FOR OPEN CIRCUIT
OR SHORT TO GND
4
Yes
Yes Go to the next step.
Turn the ignition switch to the ON position
Repair or replace the wiring harness for a
(Engine off).
possible
open circuit or short to GND, then go
No
Measure the voltage between EVAP system
to
Step
9.
leak detection pump terminal A (wiring
harness-side) and body GND.
Is the voltage B+ ?
INSPECT EVAP SYSTEM LEAK DETECTION
PUMP CONTROL CIRCUIT FOR SHORT TO
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 9.
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Engine Diagnostics & Control
Page 432
PUMP CONTROL CIRCUIT FOR SHORT TO
GND
•
•
•
Turn the ignition switch off.
Inspect for continuity between EVAP
system leak detection pump terminal D
(wiring harness-side) and body GND.
Is there continuity?
No Go to the next step.
Replace the EVAP system leak detection
pump, then go to Step 9.
INSPECT EVAP SYSTEM LEAK DETECTION
PUMP
•
6
Inspect the EVAP system leak detection
pump.
(See EVAPORATIVE EMISSION (EVAP)
SYSTEM LEAK DETECTION PUMP
INSPECTION .)
•
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT EVAP SYSTEM LEAK DETECTION
PUMP CONTROL CIRCUIT FOR OPEN
CIRCUIT
8
•
•
•
9
(See EVAPORATIVE EMISSION (EVAP)
CONTROL SYSTEM
REMOVAL/INSTALLATION .)
No Go to the next step.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
7
Yes
Yes
Repair or replace the terminal, then go to
Step 9.
No Go to the next step.
Yes
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Turn the ignition switch off.
Inspect for continuity between EVAP
system leak detection pump terminal D
No Go to the next step.
(wiring harness-side) and PCM terminal 4D
(wiring harness-side).
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC P2401
COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
(w)
Engine Diagnostics & Control
Page 433
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 6.
No Go to the next step.
(See OBD-II DRIVE MODE )
•
Is the PENDING CODE same as DTC
present?
Go to the applicable DTC inspection.
VERIFY AFTER REPAIR PROCEDURE
Yes
•
10
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
(w)
Engine Diagnostics & Control
Page 434
DTC P2402
DTC P2402
EVAP system leak detection pump control circuit high
•
The PCM monitors the pump load current (EVAP line pressure) when the
evaporative leak monitor is operating. If the pump load current is more than the
specification, the PCM determines that the EVAP system leak detection pump
control circuit voltage is high.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
•
•
This is an intermittent monitor (EVAP system).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
EVAP system leak detection pump malfunction
Connector or terminal malfunction
Short to power supply in wiring harness between EVAP system leak detection
pump terminal D and PCM terminal 4D
PCM malfunction
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Engine Diagnostics & Control
Page 435
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Engine Diagnostics & Control
Page 436
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT EVAP SYSTEM LEAK
DETECTION PUMP CONNECTOR FOR
POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the EVAP system leak
detection pump connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT EVAP SYSTEM LEAK
DETECTION PUMP CONTROL CIRCUIT
FOR SHORT TO POWER SUPPLY
4
•
•
•
5
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between EVAP
system leak detection pump terminal D
(wiring harness-side) and body GND.
Is the voltage B+ ?
INSPECT EVAP SYSTEM LEAK
DETECTION PUMP
•
Inspect the EVAP system leak detection
pump.
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
Yes
Repair or replace the terminal, then go to Step
7.
No Go to the next step.
Repair or replace the wiring harness for a
Yes possible short to power supply, then go to Step
7.
No Go to the next step.
Replace the EVAP system leak detection pump,
then go to Step 7.
Yes
(See EVAPORATIVE EMISSION (EVAP)
CONTROL SYSTEM
REMOVAL/INSTALLATION .)
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Engine Diagnostics & Control
Page 437
pump.
(See EVAPORATIVE EMISSION
(EVAP) SYSTEM LEAK DETECTION
PUMP INSPECTION .)
•
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
6
•
•
•
•
No Go to the next step.
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P2402 COMPLETED
Yes
Repair or replace the terminal, then go to the
next step.
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
7
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 6.
(See OBD-II DRIVE MODE )
•
No Go to the next step.
Is the PENDING CODE same as DTC
present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
8
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 438
DTC P2404
DTC P2404
EVAP system leak detection pump sense circuit range/performance problem
•
DETECTION
CONDITION
Diagnostic support note
•
•
This is an intermittent monitor (EVAP system).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
EVAP hose bending
Air filter clogging
PCM malfunction
•
•
•
POSSIBLE
CAUSE
The PCM monitors the pump load current (EVAP line pressure) when the
evaporative leak monitor is operating. If the time in which the pump load current
reaches the reference current value is not within the specification after the PCM
obtains the reference current value, the PCM determines that there is an EVAP
system leak detection pump sense circuit range/performance problem.
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Engine Diagnostics & Control
Page 439
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins
and/or on-line repair information
availability.
Is any related repair information
available?
INSPECT EVAP HOSE FOR BENDING
3
•
•
4
•
5
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Yes
Repair or replace the malfunctioning EVAP hose,
then go to Step 5.
Inspect the EVAP hose for bending.
Is there any malfunction?
No Go to the next step.
INSPECT AIR FILTER FOR CLOGGING
•
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
Replace the air filter, then go to the next step.
(See AIR FILTER INSPECTION .)
Yes (See EVAPORATIVE EMISSION (EVAP)
CONTROL SYSTEM REMOVAL/INSTALLATION
.)
Is there any malfunction?
No Go to the next step.
Inspect the air filter for clogging.
VERIFY TROUBLESHOOTING OF DTC
Replace the PCM, then go to the next step.
P2404 COMPLETED
Yes
(See PCM REMOVAL/INSTALLATION .)
• Make sure to reconnect all
disconnected connectors.
• Clear the DTC from the PCM
memory using the WDS or
equivalent.
• Perform the DRIVE MODE 1 and 6.
No Go to the next step.
(See OBD-II DRIVE MODE )
•
Is the PENDING CODE same as
DTC present?
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Engine Diagnostics & Control
Page 440
VERIFY AFTER REPAIR PROCEDURE
•
6
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR
PROCEDURE .)
•
Go to the applicable DTC inspection.
Yes
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 441
DTC P2405
DTC P2405
EVAP system leak detection pump sense circuit low
•
The PCM monitors the pump load current (EVAP line pressure) when the
evaporative leak monitor is operating. If the pump load current is less than the
specification while the PCM obtains the reference current value, the PCM
determines that the EVAP system leak detection pump sense circuit voltage is low.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
This is an intermittent monitor (EVAP system).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
EVAP system leak detection pump malfunction
Orifice fallen off
Pump malfunction
PCM malfunction
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Engine Diagnostics & Control
Page 442
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
Yes
3
Inspect the EVAP system leak detection
pump.
(See EVAPORATIVE EMISSION
(EVAP) SYSTEM LEAK
DETECTION PUMP INSPECTION .)
•
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Replace the EVAP system leak detection pump,
then go to the next step.
INSPECT EVAP SYSTEM LEAK
DETECTION PUMP
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
(See EVAPORATIVE EMISSION (EVAP)
CONTROL SYSTEM
REMOVAL/INSTALLATION .)
No Go to the next step.
Is there any malfunction ?
VERIFY TROUBLESHOOTING OF DTC
P2405 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
4
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 6.
(See OBD-II DRIVE MODE )
•
5
No Go to the next step.
Is the PENDING CODE same as DTC
present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
(See DTC TABLE .)
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Engine Diagnostics & Control
Page 443
•
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 444
DTC P2406
DTC P2406
EVAP system leak detection pump sense circuit high
•
The PCM monitors the pump load current (EVAP line pressure) when the
evaporative leak monitor is operating. If the pump load current is more than the
specification while the PCM obtains the reference current value, the PCM
determines that the EVAP system leak detection pump sense circuit voltage is high.
Diagnostic support note
DETECTION
CONDITION
•
•
•
•
•
POSSIBLE
CAUSE
•
•
This is an intermittent monitor (EVAP system).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
EVAP system leak detection pump malfunction
Orifice clogging
Pump malfunction
PCM malfunction
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Engine Diagnostics & Control
Page 445
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
Yes
3
Inspect the EVAP system leak detection
pump.
(See EVAPORATIVE EMISSION
(EVAP) SYSTEM LEAK
DETECTION PUMP INSPECTION .)
•
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Replace the EVAP system leak detection pump,
then go to the next step.
INSPECT EVAP SYSTEM LEAK
DETECTION PUMP
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
(See EVAPORATIVE EMISSION (EVAP)
CONTROL SYSTEM
REMOVAL/INSTALLATION .)
No Go to the next step.
Is there any malfunction ?
VERIFY TROUBLESHOOTING OF DTC
P2406 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
4
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 6.
(See OBD-II DRIVE MODE )
•
5
No Go to the next step.
Is the PENDING CODE same as DTC
present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
(See DTC TABLE .)
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Engine Diagnostics & Control
Page 446
•
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
No DTC troubleshooting completed.
Are any DTCs present?
Notes:
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Engine Diagnostics & Control
Page 447
DTC P2407
DTC P2407
EVAP system leak detection pump sense circuit intermittent/erratic problem
•
•
DETECTION
CONDITION
The PCM monitors the pump load current (EVAP line pressure) when the
evaporative leak monitor is operating. If the change in pump load current is more
than the specification while the PCM obtains the reference current value 28 times ,
the PCM determines that there is an EVAP system leak detection pump sense circuit
intermittent/erratic problem.
The PCM monitors the pump load current (EVAP line pressure) when the
evaporative leak monitor is operating. If the pump load current is kept less than the
maximum pump load current after the PCM obtains the reference current value 28
times , the PCM determines that there is an EVAP system leak detection pump sense
circuit intermittent/erratic problem.
Diagnostic support note
•
•
•
•
•
POSSIBLE
CAUSE
•
•
This is an intermittent monitor (EVAP system).
The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
EVAP system leak detection pump malfunction
Heater malfunction
PCM malfunction
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Engine Diagnostics & Control
Page 448
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
Yes
3
Inspect the EVAP system leak detection
pump.
(See EVAPORATIVE EMISSION
(EVAP) SYSTEM LEAK
DETECTION PUMP INSPECTION .)
•
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Replace the EVAP system leak detection pump,
then go to the next step.
INSPECT EVAP SYSTEM LEAK
DETECTION PUMP
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
(See EVAPORATIVE EMISSION (EVAP)
CONTROL SYSTEM
REMOVAL/INSTALLATION .)
No Go to the next step.
Is there any malfunction ?
VERIFY TROUBLESHOOTING OF DTC
P2407 COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
•
4
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Perform the DRIVE MODE 1 and 6.
(See OBD-II DRIVE MODE )
•
5
No Go to the next step.
Is the PENDING CODE same as DTC
present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
(See DTC TABLE .)
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Engine Diagnostics & Control
Page 449
•
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
No DTC troubleshooting completed.
Are any DTCs present?
Notes:
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Engine Diagnostics & Control
Page 450
DTC P25XX
DTC P2502
DTC P2502
Charging system voltage problem
•
DETECTION
CONDITION
POSSIBLE
CAUSE
The PCM monitors the generator output voltage and the battery voltage when the
engine is running. If the generator output voltage is more than 16.9 V and the
battery voltage is less than 10.9 V , the PCM determines that there is a charging
system voltage malfunction.
Diagnostic support note
•
•
•
•
•
This is a continuous monitor (Other).
The MIL does not illuminate.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
Generator malfunction
Battery malfunction
Connector or terminal malfunction
Open circuit in wiring harness between battery positive terminal and generator
terminal B
Short to GND in wiring harness between battery positive terminal and generator
terminal B
PCM malfunction
•
•
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Engine Diagnostics & Control
Page 451
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Engine Diagnostics & Control
Page 452
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or online repair information availability.
Is any related repair information available?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT GENERATOR TERMINAL FOR
POOR INSTALLATION
3
•
•
•
Turn the ignition switch off.
Inspect for looseness of the generator
terminal B.
Is there any malfunction?
Yes
No Go to the next step.
INSPECT GENERATOR
•
4
Inspect the generator.
Is there any malfunction ?
INSPECT CHARGING CIRCUIT FOR SHORT
TO GND
•
•
•
6
Replace the generator, then go to Step 9.
Yes
(See GENERATOR
REMOVAL/INSTALLATION .)
(See GENERATOR INSPECTION .)
•
5
Connect the generator terminal B correctly,
then go to Step 9.
Turn the ignition switch off.
Inspect for continuity between generator
terminal B (wiring harness-side) and body
GND.
Is there continuity?
INSPECT BATTERY POSITIVE TERMINAL
FOR POOR INSTALLATION
No Go to the next step.
Yes
Repair or replace the wiring harness for a
possible short to GND, then go to Step 9.
No Go to the next step.
Yes
Connect the battery positive terminal
correctly, then go to Step 9.
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Engine Diagnostics & Control
Page 453
•
•
•
Turn the ignition switch off.
Inspect for looseness of the battery positive
terminal.
Is there any malfunction?
No Go to the next step.
INSPECT BATTERY
•
7
Inspect the battery.
Yes
(See BATTERY
REMOVAL/INSTALLATION .)
(See BATTERY INSPECTION .)
•
Is there any malfunction?
INSPECT CHARGING CIRCUIT FOR OPEN
CIRCUIT
8
Replace the battery, then go to Step 9.
•
•
•
No Go to the next step.
Yes
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Turn the ignition switch off.
Inspect for continuity between generator
terminal B (wiring harness-side) and battery No Go to the next step.
positive terminal (wiring harness-side).
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC P2502
COMPLETED
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
9
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory using
the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the same DTC present?
Go to the applicable DTC inspection.
VERIFY AFTER REPAIR PROCEDURE
Yes
•
10
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 454
DTC P2503
DTC P2503
Charging system voltage low
•
DETECTION
CONDITION
POSSIBLE
CAUSE
The PCM monitors the generator output voltage when the engine is running. If the
generator output voltage is less than 8.5 V while the PCM needs more than 19.5 A
from the generator, the PCM determines that the charging system voltage is low.
Diagnostic support note
•
•
•
•
•
This is a continuous monitor (Other).
The MIL does not illuminate.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
•
Generator malfunction
Connector or terminal malfunction
Open circuit in wiring harness between generator terminal D and PCM terminal 2I
Short to GND in wiring harness between generator terminal D and PCM terminal
2I
Open circuit in wiring harness between generator terminal P and PCM terminal 2T
Short to GND in wiring harness between generator terminal P and PCM terminal
2T
PCM malfunction
•
•
•
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Engine Diagnostics & Control
Page 455
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Engine Diagnostics & Control
Page 456
Diagnostic procedure
STEP INSPECTION
ACTION
VERIFY FREEZE FRAME DATA HAS BEEN Yes Go to the next step.
RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT GENERATOR CONNECTOR FOR
POOR CONNECTION
3
•
•
•
•
4
•
Yes
5
Yes Repair or replace the terminal, then go to Step 8.
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Generator terminal D (wiring
harness-side) and body GND
Generator terminal P (wiring
harness-side) and body GND
Is there continuity?
Yes
Inspect the generator.
Repair or replace the wiring harness for a
possible short to GND, then go to Step 8.
No Go to the next step.
Replace the generator, then go to Step 8.
Yes
(See GENERATOR
REMOVAL/INSTALLATION .)
(See GENERATOR INSPECTION .)
•
6
If the vehicle is not repaired, go to the
next step.
No Go to the next step.
INSPECT GENERATOR
•
•
Turn the ignition switch off.
Disconnect the generator connector.
No Go to the next step.
Inspect for poor connection (such as
damaged/pulled-out pins, and corrosion).
Is there any malfunction?
INSPECT GENERATOR CIRCUIT FOR
SHORT TO GND
•
•
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Is there any malfunction ?
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 8.
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Engine Diagnostics & Control
Page 457
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
INSPECT GENERATOR CIRCUIT FOR
OPEN CIRCUIT
•
•
7
•
Turn the ignition switch off.
Inspect for continuity between the
following circuits:
Generator terminal D (wiring
harness-side) and PCM terminal
2I (wiring harness-side)
Generator terminal P (wiring
harness-side) and PCM terminal
2T (wiring harness-side)
Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P2503 COMPLETED
No Go to the next step.
Yes Go to the next step.
No
Repair or replace the wiring harness for a
possible open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
8
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
Start the engine.
Is the same DTC present?
No Go to the next step.
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
9
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
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Engine Diagnostics & Control
Page 458
DTC P2504
DTC P2504
Charging system voltage high
•
DETECTION
CONDITION
POSSIBLE
CAUSE
The PCM monitors the generator output voltage and the battery voltage when the
engine is running. If the generator output voltage is more than 18.4 V or the
battery voltage is more than 15.9 V , the PCM determines that the charging system
voltage is high.
Diagnostic support note
•
•
•
•
•
This is a continuous monitor (Other).
The MIL does not illuminate.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.
•
•
•
Generator malfunction
Connector or terminal malfunction
Short to power supply in wiring harness between generator terminal D and PCM
terminal 2I
PCM malfunction
•
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Engine Diagnostics & Control
Page 459
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Engine Diagnostics & Control
Page 460
Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
•
Has FREEZE FRAME DATA been
recorded?
ACTION
Yes Go to the next step.
No
Perform repair or diagnosis according to the
available repair information.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2
•
•
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related repair information
available?
INSPECT GENERATOR CONNECTOR
FOR POOR CONNECTION
3
•
•
•
•
Turn the ignition switch off.
Disconnect the generator connector.
Inspect for poor connection (such as
damaged/pulled-out pins, and
corrosion).
Is there any malfunction?
Record the FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes
•
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 7.
No Go to the next step.
Repair or replace the wiring harness for a possible
INSPECT GENERATOR CONTROL
Yes
short to power supply, then go to Step 7.
CIRCUIT FOR SHORT TO POWER SUPPLY
•
4
•
•
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between generator
terminal D (wiring harness-side) and
body GND.
Is the voltage B+ ?
No Go to the next step.
INSPECT GENERATOR
•
5
Yes
(See GENERATOR
REMOVAL/INSTALLATION .)
(See GENERATOR INSPECTION .)
•
6
Inspect the generator.
Replace the generator, then go to Step 7.
Is there any malfunction ?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
No Go to the next step.
Yes
Repair or replace the terminal, then go to the next
step.
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Engine Diagnostics & Control
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•
•
•
•
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P2504 COMPLETED
No Go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION .)
•
7
•
•
•
Make sure to reconnect all disconnected
connectors.
Clear the DTC from the PCM memory
using the WDS or equivalent.
No Go to the next step.
Start the engine.
Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Go to the applicable DTC inspection.
Yes
•
8
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR PROCEDURE .)
•
(See DTC TABLE .)
No DTC troubleshooting completed.
Are any DTCs present?
Notes:
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Engine Diagnostics & Control
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