42B - Система доступа без ключа (KOS)

42B - Система доступа без ключа (KOS)
42B-1
GROUP 42B
KEYLESS
OPERATION
SYSTEM (KOS)
CONTENTS
SPECIAL TOOL(S) . . . . . . . . . . . . . .
42B-4
B2418 OSS authenticate timeout . . . . . . . .
42B-25
B2419 LF antenna open . . . . . . . . . . . . . . .
42B-26
42B-6
B241A ESL power control circuit ground . . .
42B-27
42B-6
U0141 ETACS-ECU CAN Timeout . . . . . . .
42B-27
42B-6
U0155 Meter CAN Timeout . . . . . . . . . . . . .
42B-28
WARNING AND WARNING INDICATOR LIST
<Standard meter> . . . . . . . . . . . . . . . . . . . .
42B-6
U0164 A/C CAN Timeout . . . . . . . . . . . . . .
42B-29
TROUBLESHOOTING <KOS-ECU> .
DIAGNOSIS TROUBLESHOOTING FLOW
DIAGNOSIS FUNCTION. . . . . . . . . . . . . . .
WARNING AND WARNING INDICATOR LIST <High
contrast meter> . . . . . . . . . . . . . . . . . . . . . .
42B-9
U0230 ELECTRIC TAILGATE UNIT CAN timeout
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42B-30
U0245 AND CAN timeout . . . . . . . . . . . . . .
42B-30
DIAGNOSIS CODE CHART <KOS-ECU> .
42B-11
U1000 OSS CAN timeout . . . . . . . . . . . . . .
42B-31
DIAGNOSIS CODE PROCEDURES . . . . .
42B-13
U1190 No receive fault detect signal . . . . . .
42B-31
B1761 Chassis No. not Programmed . . . . .
42B-13
U1195 Coding not completed . . . . . . . . . . .
42B-32
B1770 Implausible coding data . . . . . . . . . .
42B-13
DATA LIST REFERENCE TABLE . . . . . . . .
42B-32
B1A08 KOS Key 1 Malfunction . . . . . . . . . .
42B-14
ACTUATOR TEST REFERENCE TABLE . .
42B-33
B1A10 KOS Key 1 Low Battery. . . . . . . . . .
42B-15
SYMPTOM CHART <KOS-ECU> . . . . . . . .
42B-33
B1A24 Key not Registered . . . . . . . . . . . . .
42B-15
SYMPTOM PROCEDURES . . . . . . . . . . . .
42B-34
B1A25 Key Registered to Another Vehicle .
42B-16
B2101 IG ST Position (Low Input). . . . . . . .
42B-17
M.U.T.-III CANNOT COMMUNICATE WITH KOS-ECU.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42B-34
B2204 Coding Data Unmatched . . . . . . . . .
42B-18
B2206 Chassis No. Unmatched . . . . . . . . .
42B-19
B2352 Immobilizer Antenna Malfunction. . .
42B-19
B2400 KOS Key Registration Fail . . . . . . . .
42B-20
B2401 KOS Key ID not registered . . . . . . .
42B-21
B240A FR Antenna (Outdoor) Open Circuit
42B-21
B240B FL Antenna (Outdoor) Open Circuit
42B-22
B240C Tail Gate Antenna (Outdoor) Open Circuit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42B-22
KEYLESS OPERATION KEY CANNOT BE
REGISTERED WITH M.U.T.-III . . . . . . . . . .
42B-34
ABNORMALITY IN KOS-ECU POWER SUPPLY AND
EARTH CIRCUITS . . . . . . . . . . . . . . . . . . . 42B-35
KEYLESS OPERATION WARNING LAMP DOES NOT
GO OUT. . . . . . . . . . . . . . . . . . . . . . . . . . . . 42B-36
NO DOOR CAN BE OPERATED BY OPERATING A
KEYLESS OPERATION SWITCH ON ANY DOOR, OR
BY TOUCHING THE TOUCH SENSOR.. . . 42B-37
DRIVER'S KEYLESS OPERATION SWITCH (LOCK)
DOES NOT WORK.. . . . . . . . . . . . . . . . . . . 42B-38
B240D Front Antenna (Indoor) Open Circuit
42B-23
B240E RR Antenna (Indoor) Open Circuit .
42B-24
B2416 ECU Internal Error (EEPROM) . . . .
42B-25
PASSENGER'S KEYLESS OPERATION SWITCH
(LOCK) DOES NOT WORK. . . . . . . . . . . . . 42B-38
B2417 OSS authenticate error . . . . . . . . . .
42B-25
TAILGATE LOCK RELEASE HANDLE DOES NOT
42B-2
WORK. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
42B-39
B1148 ESL power control . . . . . . . . . . . . . .
42B-70
TAILGATE KEYLESS OPERATION SWITCH DOES
NOT WORK. . . . . . . . . . . . . . . . . . . . . . . . .
42B-40
B1149 KOS power control monitor input . . .
42B-70
B1150 OSS authenticate timeout(ESL) . . . .
42B-71
TAILGATE OPENER DOES NOT WORK. .
42B-41
B1155 EEPROM fail(ESL) . . . . . . . . . . . . . .
42B-71
KEYLESS ENTRY SYSTEM DOES NOT WORK AT
ALL.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
42B-42
B1157 OSS EEPROM fail . . . . . . . . . . . . . .
42B-72
KOS TIMER LOCK FUNCTION DOES NOT WORK.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42B-43
B1159 Chassis No. not programmed . . . . .
42B-72
B1161 Chassis No. mismatch . . . . . . . . . . .
42B-73
B1163 Coding data mismatch . . . . . . . . . . .
42B-73
B1166 Special mode . . . . . . . . . . . . . . . . . .
42B-74
B1731 Engine ECU communication timeout
42B-74
B1A28 Engine ECU authenticate error . . . .
42B-75
U0141 ETACS CAN timeout . . . . . . . . . . . .
42B-75
U0155 Meter CAN timeout . . . . . . . . . . . . .
42B-75
U0164 A/C CAN timeout . . . . . . . . . . . . . . .
42B-76
U0168 WCM/KOS CAN timeout . . . . . . . . .
42B-76
U1190 No receive fault detect signal . . . . . .
42B-77
U1195 Coding not completed . . . . . . . . . . .
42B-77
DATA LIST REFERENCE TABLE . . . . . . . .
42B-78
42B-49
ACTUATOR TEST REFERENCE TABLE . .
42B-79
DIAGNOSIS TROUBLESHOOTING FLOW
42B-49
SPECIAL FUNCTION TABLE . . . . . . . . . . .
42B-79
DIAGNOSIS FUNCTION. . . . . . . . . . . . . . .
42B-49
SYMPTOM CHART <OSS-ECU> . . . . . . . .
42B-79
TROUBLESHOOTING PROCEDURE WHEN
VEHICLE POWER DOES NOT TURN ON .
42B-50
SYMPTOM PROCEDURES . . . . . . . . . . . .
42B-80
KEYLESS ENTRY HAZARD ANSWERBACK
FUNCTION OR THE ROOM LAMP ANSWERBACK
FUNCTION DOES NOT WORK NORMALLY.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42B-44
MULTIMODE KEYLESS ENTRY FUNCTION DOES
NOT WORK AT ALL. . . . . . . . . . . . . . . . . .
42B-45
OUTER BUZZER DOES NOT SOUND. . . .
42B-45
POWER DOOR LOCKS WITH SELECTIVE
UNLOCKING DOES NOT WORK. . . . . . . .
42B-46
TERMINAL VOLTAGE REFERENCE CHART
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42B-47
TROUBLESHOOTING <OSS-ECU> .
FORCED POWER SUPPLY OUTPUT PROCEDURE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42B-50
WARNING AND WARNING INDICATOR LIST
<Standard meter> . . . . . . . . . . . . . . . . . . . .
42B-51
WARNING AND WARNING INDICATOR LIST <High
contrast meter> . . . . . . . . . . . . . . . . . . . . . .
42B-52
Abnormality in OSS-ECU power supply and earth circuit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42B-80
Vehicle power does not turn ON. (not possible with both
of power supply mode ACC and ON) . . . . . 42B-81
Vehicle power does not turn ON. (Not possible with
power supply mode ACC only) . . . . . . . . . . 42B-82
Vehicle power does not turn ON. (Not possible with
power supply mode ON only) . . . . . . . . . . . 42B-83
DIAGNOSIS CODE CHART <OSS-ECU> .
42B-53
DIAGNOSIS CODE PROCEDURES . . . . .
42B-54
B1130 Power output status unmatched . . .
42B-54
B1131 Starter output internal fail. . . . . . . . .
42B-57
B1132 Starter output external fail . . . . . . . .
42B-58
B1133 IG1 output internal fail . . . . . . . . . . .
42B-59
B1134 ECU power supply . . . . . . . . . . . . . .
42B-60
B1135 Push start switch . . . . . . . . . . . . . . .
42B-61
B1136 Stop lamp switch . . . . . . . . . . . . . . .
42B-62
B1137 P range detect SW. . . . . . . . . . . . . .
42B-63
B1139 KOS authenticate timeout . . . . . . . .
42B-64
B1140 KOS authenticate error . . . . . . . . . .
42B-65
ID CODES REGISTRATION PROCEDURE
42B-88
B1141 ESL authenticate timeout. . . . . . . . .
42B-65
ANTENNA COMMUNICATION TEST . . . . .
42B-89
B1142 ESL authenticate error. . . . . . . . . . .
42B-66
KEYLESS ENTRY SYSTEM INSPECTION
42B-89
B1143 ESL status unmatched. . . . . . . . . . .
42B-66
B1144 ESL lock/unlock fail . . . . . . . . . . . . .
42B-67
MULTIMODE KEYLESS ENTRY FUNCTION CHECK
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42B-90
B1145 ESL power supply circuit . . . . . . . . .
42B-68
B1146 ESL drive circuit. . . . . . . . . . . . . . . .
42B-68
B1147 ESL LIN communication fail. . . . . . .
42B-69
Engine does not start (cranking is not performed).
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42B-83
Vehicle power cannot be turned OFF when the shift
position is in "P." (Power supply mode ON to ACC is
possible) <CVT vehicle> . . . . . . . . . . . . . . . 42B-85
Electric steering lock does not become locked. (At
power supply mode OFF) . . . . . . . . . . . . . . 42B-86
TERMINAL VOLTAGE REFERENCE CHART
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42B-86
ON-VEHICLE SERVICE <KOS-ECU> 42B-88
KEYLESS ENTRY SYSTEM TIMER LOCK FUNCTION
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 42B-90
POWER DOOR LOCKS WITH SELECTIVE
UNLOCKING INSPECTION . . . . . . . . . . . .
42B-90
42B-3
42B-90
KEYLESS OPERATION KEY . . . . . . . 42B-98
ON-VEHICLE SERVICE <OSS-ECU> 42B-92
KEYLESS OPERATION KEY DISASSEMBLY AND
REASSEMBLY . . . . . . . . . . . . . . . . . . . . . . 42B-98
CHECK OF ENGINE SWITCH OPERATION
FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . .
42B-92
KEY SLOT. . . . . . . . . . . . . . . . . . . . . . 42B-99
CUSTOMIZATION FUNCTION. . . . . . . . . .
CHECK OF ENGINE SWITCH INDICATOR
FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . .
42B-93
KEY SLOT REMOVAL AND INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42B-99
CHECK OF ENGINE SWITCH REMINDER BUZZER
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42B-93
KEY SLOT INSPECTION . . . . . . . . . . . . . . 42B-100
REGISTRATION WHEN REPLACING OSS-ECU AND
ELECTRIC STEERING LOCK . . . . . . . . . .
42B-93
OSS-ECU . . . . . . . . . . . . . . . . . . . . . . 42B-100
KOS-ECU . . . . . . . . . . . . . . . . . . . . . .
KOS-ECU REMOVAL AND INSTALLATION
......................................
42B-95
42B-95
OUTSIDE TRANSMISSION ANTENNA
ASSEMBLY, INSIDE TRANSMISSION
ANTENNA ASSEMBLY . . . . . . . . . . . 42B-96
OUTSIDE TRANSMISSION ANTENNA ASSEMBLY,
INSIDE TRANSMISSION ANTENNA ASSEMBLY,
RECEIVER ANTENNA MODULE REMOVAL AND
INSTALLATION. . . . . . . . . . . . . . . . . . . . . .
42B-96
OSS-ECU REMOVAL AND INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42B-100
ENGINE SWITCH . . . . . . . . . . . . . . . . 42B-101
ENGINE SWITCH REMOVAL AND INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42B-101
ENGINE SWITCH INSPECTION. . . . . . . . . 42B-101
ELECTRIC STEERING LOCK . . . . . . 42B-102
ELECTRIC STEERING LOCK REMOVAL AND
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . 42B-102
KEYLESS OPERATION SYSTEM (KOS)
42B-4
SPECIAL TOOLS
SPECIAL TOOLS
M1429604300145
Tool
a
MB992744
b
MB992745
c
DO NOT USE
MB992746
d
MB992747
e
MB992748
ACB05421AB
Number
Name
Use
a. MB992744
b. MB992745
c. MB992746
d. MB992747
e. MB992748
• Diagnosis code, service data,
a. Vehicle
actuator test check
communicatio
•
Registration of ID codes
n
interface-Lite
(V.C.I.-Lite)
b. V.C.I.-Lite
main harness
A (for vehicles
with CAN
communicatio
n)
c. V.C.I.-Lite
main harness
B (for vehicles
without CAN
communicatio
n)
d. V.C.I.-Lite
USB cable
short
e. V.C.I.-Lite
USB cable
long
KEYLESS OPERATION SYSTEM (KOS)
SPECIAL TOOLS
Tool
a
MB991824
b
42B-5
Number
Name
Use
MB991955
a. MB991824
b. MB991827
c. MB991910
d. MB991911
e. MB991825
f. MB991826
M.U.T.-III
sub-assembly
a. Vehicle
communicatio
n interface
(V.C.I.)
b. M.U.T.-III
USB cable
c. M.U.T.-III
main harness
A (for vehicles
with CAN
communicatio
n)
d. M.U.T.-III
main harness
B (for vehicles
without CAN
communicatio
n)
e. Measuring
adapter
harness
f. M.U.T.-III
trigger
harness
CAUTION
For vehicles with CAN
communication, use the M.U.T.-III
main harness A to send
simulated vehicle speed. If you
connect the M.U.T.-III main
harness B instead, the CAN
communication does not
function correctly.
• Diagnosis code, service data,
actuator test check
• Registration of ID codes
MB991223
a. MB991219
b. MB991220
c. MB991221
d. MB991222
Wiring harness
set
a. Check
harness
b. LED harness
c. LED harness
adapter
d. Probe
Continuity check and voltage
measurement at harness wire or
connector
a. For checking connector pin
contact pressure
b. For checking power supply
circuit
c. For checking power supply
circuit
d. For connecting a locally sourced
tester
MB991827
c
MB991910
d
DO NOT USE
MB991911
e
MB991825
f
MB991826
MB991955
a
b
c
d
DO NOT USE
MB991223BA
KEYLESS OPERATION SYSTEM (KOS)
42B-6
TROUBLESHOOTING <KOS-ECU>
Tool
Number
Name
Use
MB992006
Extra fine probe
Continuity check and voltage
measurement at harness wire or
connector
MB990784
Ornament
remover
Steering column cover removal
MB992006
MB990784
TROUBLESHOOTING <KOS-ECU>
STANDARD FLOW OF DIAGNOSTIC
TROUBLESHOOTING
M1429604400056
Refer to GROUP 00 − How to Use Troubleshooting/Inspection Service Points .
DIAGNOSTIC FUNCTION
M1429605400372
HOW TO READ DIAGNOSIS CODE
Refer to GROUP 00 − How to Use Troubleshooting
and Inspection Service Points .
CHECK OF FREEZE FRAME DATA
The freeze frame data can be checked by using the
M.U.T.-III.
When detecting fault and storing the diagnosis code,
the ECU connected to CAN bus line obtains the data
before the determination of the diagnosis code and
the data when the diagnosis code is determined, and
then stores the ECU status of that time. By analysing
each data from M.U.T.-III, the troubleshooting can be
performed more efficiently. The displayed items are
as the table below.
HOW TO ERASE DIAGNOSIS CODE
Refer to GROUP 00 − How to Use Troubleshooting
and Inspection Service Points .
Display item list
Item No.
Item name
Data item
Unit
1
Odometer
Total driving distance after the diagnosis code
is generated
km
2
Ignition cycle
Number of times the power supply mode is
turned "ON" or "OFF" after the past trouble
transition.
Number of counts
is displayed.
4
Current trouble
accumulative time
Cumulative time for current malfunction of
diagnosis code
min
WARNING AND WARNING INDICATOR LIST <Standard meter>
M1429612300623
When KOS failed or operated improperly, KOS-ECU
warns the driver of this by setting off the outer buzzer
and the keyless operation warning indicator on the
combination meter.
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
Item
Keyless
operation key
battery low
voltage
warning
Keyless
operation key
take out
warning
Door lock
does not
operate
(keyless
operation key
is located
inside the
vehicle).
Door lock
does not
operate (door
open).
Indicator
State
AC809615
AC809615
AC809615
AC809615
42B-7
Warning operation Warning cancellation
condition (when any of
the condition met)
The keyless operation Warning indicator
key with low battery
flashes for 30
voltage is detected
seconds.
when the engine
switch is pressed.
• Power supply mode
OFF is detected.
• 30 seconds have
passed after the
warning output started.
The keyless operation
key is carried out of
the vehicle when the
power supply mode is
in other than OFF,
and the door is
closed.
• The warning
indicator flashes
for 5 minutes.
• Outer buzzer
sounds for 5.69
seconds in
pattern 2.
• Power supply mode
OFF is detected.
• KOS-ECU has
detected a keyless
operation key inside
the vehicle.
• 5 minutes have passed
when the power supply
mode is in ACC.
The lock/unlock
switch on the front
door outside handle
(driver's side, front
passenger's side) or
the tailgate lock
release handle
(tailgate open switch,
tailgate lock switch)
are pressed when the
keyless operation key
is still located inside
the car.
• Warning
indicator flashes
for 5 seconds.
• Outer buzzer
sounds for 2.96
seconds in
pattern 1.
• The lock/unlock switch
on the front door
outside handle (driver's
side, front passenger's
side) or tailgate lock
release handle (tailgate
open switch, tailgate
lock switch) are
pressed again.
• 5 seconds have passed
after the warning output
started.
The lock/unlock
switch on the front
door outside handle
(driver's side, front
passenger's side) or
the tailgate lock
release handle
(tailgate open switch,
tailgate lock switch)
are pressed when the
door is ajar.
• Warning
indicator flashes
for 5 seconds.
• Outer buzzer
sounds for 2.96
seconds in
pattern 1.
• All doors are closed.
• 5 seconds have passed
after the warning output
started.
KEYLESS OPERATION SYSTEM (KOS)
42B-8
Item
TROUBLESHOOTING <KOS-ECU>
Indicator
State
System error
AC809615
Warning operation Warning cancellation
condition (when any of
the condition met)
Engine switch is
The warning
pressed when an
indicator illuminates
error has been
for 5 minutes.
detected in EEPROM
of KOS-ECU.
5 minutes have passed
after the alarm is output,
also the power supply
mode is OFF
Engine switch is
pressed when a
transmission antenna
has an open circuit or
short to power supply.
Open circuit or short
to earth is detected in
the key slot.
An error is detected,
and the power supply
mode is other than
OFF.
No keyless
operation key
detected
inside the car
AC809615
Key reminder
AC809615
Engine switch
reminder
AC809615
No keyless operation The warning
key is detected inside indicator flashes for
the car when the
5 seconds.
engine switch is
pressed.
• Power supply mode
OFF is detected.
• 5 seconds have passed
after the warning output
started.
With the driver's door
kept open, the
keyless operation key
is not removed from
the key slot located in
the floor console.
• The warning
indicator flashes
for 1 minute.
• Outer buzzer
sounds for 2.96
seconds in
pattern 1.
• Key is removed from
the key slot in the floor
console.
• 1 minutes have passed
after the warning output
started.
The lock/unlock
switch on the front
door outside handle
(driver's side, front
passenger's side) or
the tailgate lock
release handle
(tailgate open switch,
tailgate lock switch)
are pressed when the
power supply mode is
other than OFF.
• Warning
indicator flashes
for 5 seconds.
• Outer buzzer
sounds for 2.96
seconds in
pattern 1.
• Power supply mode
OFF is detected.
• 5 seconds have passed
after the warning output
started.
KEYLESS OPERATION SYSTEM (KOS)
42B-9
TROUBLESHOOTING <KOS-ECU>
<Sound pattern 1>
<Sound pattern 2>
T7
T3
T3
T1
T4
T3
T4
T3
T4
T1
T2
T1 : 0.08 ± 0.01 seconds
T2 : 2.96 seconds
T5
T6
T5
T6
T5
T6
T5
T3 : 1.01 seconds
T4 : 0.55 seconds
T5 : 0.17 ± 0.01 seconds
T6 : 0.11 ± 0.01 seconds
T7 : 5.69 seconds
AC501053AC
WARNING AND WARNING INDICATOR
LIST <High contrast meter>
M1429612300634
When KOS failed or operated improperly, KOS-ECU
warns the driver of this by setting off the outer buzzer
and the keyless operation warning indicator on the
multi information display in the combination meter.
Item
Display content
State
Keyless
operation
key battery
low voltage
warning
Keyless
operation
key take out
warning
Door lock
does not
operate
(keyless
operation
key is
located
inside the
vehicle).
AC809615
AC809615
Warning cancellation
condition (when any
of the condition met)
The keyless
Warning
operation key with indicator display
low battery voltage for 30 seconds.
is detected when
the engine switch
is pressed.
• Power supply mode
OFF is detected.
• 30 seconds have
passed after the
warning output
started.
KEY NOT
The keyless
DETECTED operation key is
carried out of the
vehicle when the
power supply
mode is in other
than OFF, and the
door is closed.
• The warning
indicator
display for 5
minutes.
• Outer buzzer
sounds for
5.69 seconds
in pattern 2.
• Power supply mode
OFF is detected.
• KOS-ECU has
detected a keyless
operation key
inside the vehicle.
• 5 minutes have
passed when the
power supply mode
is in ACC.
KEY STILL The lock/unlock
IN VEHICLE switch of the front
door outside
handle is pressed
when the keyless
operation key is
still located inside
the car.
• Warning
indicator
display for 5
seconds.
• Outer buzzer
sounds for
2.96 seconds
in pattern 1.
• Lock/unlock switch
of the front door
outside handle is
pressed again.
• 5 seconds have
passed after the
warning output
started.
KEY
BATTERY
LOW
AC809614
Warning
operation
KEYLESS OPERATION SYSTEM (KOS)
42B-10
Item
Door lock
does not
operate
(door open).
TROUBLESHOOTING <KOS-ECU>
Display content
State
Warning
operation
Warning cancellation
condition (when any
of the condition met)
CHECK
DOORS
The lock/unlock
switch on the front
door outside
handle is pressed
when the door is
ajar.
• Warning
indicator
display for 5
seconds.
• Outer buzzer
sounds for
2.96 seconds
in pattern 1.
• All doors are
closed.
• 5 seconds have
passed after the
warning output
started.
KEYLESS
OPERATIO
N SYSTEM
SERVICE
REQUIRED
Engine switch is
pressed when an
error has been
detected in
EEPROM of
KOS-ECU.
The warning
indicator display
for 5 minutes.
5 minutes have
passed after the
engine switch is
pressed, also the
power supply mode is
OFF.
KEY NOT
DETECTED
INSERT
KEY INTO
KEY SLOT
No keyless
The warning
operation key is
indicator display
detected inside the for 5 seconds.
car when the
engine switch is
pressed.
• Power supply mode
OFF is detected.
• 5 seconds have
passed after the
warning output
started.
REMOVE
KEY FROM
KEY SLOT
With the driver's
door kept open,
the keyless
operation key is
not removed from
the key slot.
AC809615
System
error
AC809615
Engine switch is
pressed when a
transmission
antenna has an
open circuit or
short to power
supply.
Open circuit or
short to earth is
detected in the key
slot.
An error is
detected, and the
power supply
mode is other than
OFF.
No keyless
operation
key detected
inside the
car
AC904250
Key
reminder
AC904251
• The warning
indicator
display for 1
minute.
• Outer buzzer
sounds for
2.96 seconds
in pattern 1.
• Key is removed
from the key slot.
• 1 minutes have
passed after the
warning output
started.
KEYLESS OPERATION SYSTEM (KOS)
42B-11
TROUBLESHOOTING <KOS-ECU>
Item
Display content
−
Engine
switch
reminder
AC904252
<Sound pattern 1>
State
Warning
operation
Warning cancellation
condition (when any
of the condition met)
The lock/unlock
switch on the front
door outside
handle (driver's
side, front
passenger's side)
or the tailgate lock
release handle
(tailgate open
switch, tailgate
lock switch) are
pressed when the
power supply
mode is other than
OFF.
• Warning
indicator
display for 5
seconds.
• Outer buzzer
sounds for
2.96 seconds
in pattern 1.
5 minutes have
passed after the
engine switch is
pressed, also the
power supply mode is
OFF.
<Sound pattern 2>
T7
T3
T3
T1
T4
T3
T4
T3
T4
T1
T2
T1 : 0.08 ± 0.01 second
T2 : 2.96 seconds
T5
T6
T5
T6
T5
T6
T5
T3 : 1.01 seconds
T4 : 0.55 second
T5 : 0.17 ± 0.01 second
T6 : 0.11 ± 0.01 second
T7 : 5.69 seconds
AC501053AE
DIAGNOSIS CODE CHART
M1429600200953
Diagnosis code No.
Diagnostic item
Reference
page
B1761
Chassis No.not programmed
P.42B-13
B1770
Implausible coding data
P.42B-13
B1A08
Keyless/KOS key1 performance
P.42B-14
B1A09
Keyless/KOS key2 performance
B1A0A
Keyless/KOS key3 performance
B1A0B
Keyless/KOS key4 performance
B1A10
Keyless/KOS key 1 low battery
B1A11
Keyless/KOS key 2 low battery
B1A12
Keyless/KOS key 3 low battery
B1A13
Keyless/KOS key 4 low battery
P.42B-15
KEYLESS OPERATION SYSTEM (KOS)
42B-12
TROUBLESHOOTING <KOS-ECU>
Diagnosis code No.
Diagnostic item
Reference
page
B1A24
Key ID not registered
P.42B-15
B1A25
Key ID unmatched
P.42B-16
B2101
IG SW start POS circuit low
P.42B-17
B2102
IG SW start POS circuit high
B2204
Coding data mismatch
P.42B-18
B2206
Chassis No. mismatch
P.42B-19
B2352
Antenna fail
P.42B-19
B2400
KOS key registration fail
P.42B-20
B2401
Keyless/KOS key ID not registered
P.42B-21
B240A
DR side antenna(outdoor) open
P.42B-21
B240B
PS side antenna(outdoor) open
P.42B-22
B240C
Tail gate antenna(outdoor) open
P.42B-22
B240D
Front antenna(indoor) open
P.42B-23
B240E
RR antenna(indoor) open
P.42B-24
B2416
ECU internal error
P.42B-25
B2417
OSS authentification error*1
P.42B-25
B2418
OSS authentification timeout*1
P.42B-25
B2419
LF antenna voltage short*2
P.42B-26
B241A
ESL power control circuit earth*3
P.42B-27
B241B
ESL power control circuit open*3
U0141
ETACS CAN timeout
P.42B-27
U0155
Meter CAN timeout
P.42B-28
U0164
A/C-ECUCAN timeout
P.42B-29
U0230
Electric tailgate control unit CAN timeout
P.42B-30
U0245
AND CAN timeout
P.42B-30
U1000
OSS CAN timeout*1
P.42B-31
U1190
No receive fault detect signal
P.42B-31
U1195
Coding not completed
P.42B-32
NOTE: .
•
*1
•
*2:
•
*3
: OSS = One-touch start system
LF= Low frequency
: ESL = Electronic steering lock
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
42B-13
DIAGNOSIS CODE PROCEDURES
Code No.B1761 Chassis No. not programmed
CAUTION
• When the diagnosis code No. B1761 is set, be
sure to diagnose the CAN bus line.
• When replacing the ECU, always check that
the communication circuit is normal.
TROUBLE JUDGMENT
KOS-ECU sets diagnosis code No. B1761 when no
chassis number is recorded in it.
PROBABLE CAUSES
• Malfunction of CAN bus line
• Chassis No. not programmed
• Malfunction of the KOS-ECU
DIAGNOSIS PROCEDURE
1. M.U.T.-III CAN bus diagnostics.
2. Register the chassis No. and recheck the
diagnosis code.
JUDGMENT CRITERIA
KOS-ECU determines that the abnormality is present
when no chassis number is recorded in it.
Code No.B1770 Implausible coding data
CAUTION
• When diagnosis code No. B1770 is set, be
sure to diagnose the CAN bus line.
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSIS FUNCTION
If incorrect vehicle information data is received,
KOS-ECU sets the diagnosis code No. B1770.
JUDGEMENT CRITERIA
If incorrect global coding data is received with the
ignition switch turned ON when the coding confirmation is completed, KOS-ECU determines that there is
a problem.
PROBABLE CAUSES
• Malfunction of CAN bus line
• Malfunction of KOS-ECU
• Malfunction of ETACS-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to diagnose the CAN bus lines.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus line (Refer to GROUP
54C − Troubleshooting ).
STEP 2. M.U.T.-III other system diagnosis code
Check if a coding-related diagnosis code is set in the
ETACS-ECU.
Q: Is the diagnosis code set?
YES : Perform troubleshooting for ETACS-ECU
(Refer to GROUP 54A − ETACS −
Troubleshooting ).
NO : Go to Step 3.
STEP 3. Check whether the diagnosis code is
reset.
Recheck if the diagnosis code is set.
(1) Turn the engine switch from the LOCK (OFF)
position to the ON position.
(2) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
YES : Check if the coding data is sent for the
vehicles with immobilizer function on
"non-adaptable" condition. If so, change the
immobilizer function into "adaptable", and
then go to Step 4.
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
42B-14
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
STEP 4. Check whether the diagnosis code is
reset.
Recheck if the diagnosis code is set.
(1) Turn the engine switch from the LOCK (OFF)
position to the ON position.
(2) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
YES : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
NO : The procedure is complete.
Code No.B1A08 Keyless/KOS key1 performance
Code No.B1A09 Keyless/KOS key2 performance
Code No.B1A0A Keyless/KOS key3 performance
Code No.B1A0B Keyless/KOS key4 performance
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
DIAGNOSTIC FUNCTION
The mechanism which automatically changes a code
for lock/unlock each time a lock operation is performed is referred to as a rolling code. If KOS-ECU
receives wrong signal (out of synchronisation of a
rolling code) from the keyless operation key,
KOS-ECU memorises the diagnosis code No.
B1A08, B1A09, B1A0A or B1A0B.
JUDGMENT CRITERIA
• B1A08: If the difference between the rolling code
for the keyless operation key 1 (the first keyless
operation key registered with KOS-ECU) and that
memorised by KOS-ECU is large, it is judged as
abnormal.
• B1A09: If the difference between the rolling code
for the keyless operation key 2 (the second keyless operation key registered with KOS-ECU) and
that memorised by KOS-ECU is large, it is judged
as abnormal.
• B1A0A: If the difference between the rolling code
for the keyless operation key 3 (the third keyless
operation key registered with KOS-ECU) and that
memorised by KOS-ECU is large, it is judged as
abnormal.
• B1A0B: If the difference between the rolling code
for the keyless operation key 4 (the fourth keyless
operation key registered with KOS-ECU) and that
memorised by KOS-ECU is large, it is judged as
abnormal.
• Malfunction of the keyless operation key
• Malfunction of the KOS-ECU
DIAGNOSTIC PROCEDURE
STEP 1. Synchronise the rolling code and
recheck the diagnosis code.
(1) Synchronise the rolling codes as follows:
• Push the lock switch or unlock switch of keyless operation key twice or more.
• When the keyless operation is not recovered
after performing the above procedure, register
the key again (refer to P.42B-88).
(2) Recheck if the diagnosis code is set.
a. Push the lock switch or unlock switch of
keyless operation key.
b. Check if the diagnosis code is set.
Q: Is the diagnosis code set?
YES : Go to Step 2
NO : The diagnosis is complete.
STEP 2. Check whether the diagnosis code is
reset.
Replace the keyless operation key for which the
diagnosis code is set with a new one, register the key
(refer to P.42B-88), and then check whether the
diagnosis code is set again.
(1) Push the lock switch or unlock switch of keyless
operation key.
(2) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
YES : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
PROBABLE CAUSES
• Rolling code out of synchronisation
NO : The diagnosis is complete.
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
42B-15
Code No.B1A10 Keyless/KOS key 1 low battery
Code No.B1A11 Keyless/KOS key 2 low battery
Code No.B1A12 Keyless/KOS key 3 low battery
Code No.B1A13 Keyless/KOS key 4 low battery
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
DIAGNOSTIC FUNCTION
If KOS-ECU receives the keyless operation key low
battery voltage signal, KOS-ECU sets the diagnosis
code No. B1A10, B1A11, B1A12, or B1A13.
JUDGMENT CRITERIA
• B1A10: If KOS-ECU receives the keyless operation key 1 (the first keyless operation key registered with KOS-ECU) low battery voltage signal
in five consecutive times, it is judged as abnormal.
• B1A11: If KOS-ECU receives the keyless operation key 2 (the second keyless operation key registered with KOS-ECU) low battery voltage signal
in five consecutive times, it is judged as abnormal.
• B1A12: If KOS-ECU receives the keyless operation key 3 (the third keyless operation key registered with KOS-ECU) low battery voltage signal
in five consecutive times, it is judged as abnormal.
• B1A13: If KOS-ECU receives the keyless operation key 4 (the fourth keyless operation key registered with KOS-ECU) low battery voltage signal
in five consecutive times, it is judged as abnormal.
PROBABLE CAUSES
• Malfunction of the keyless operation key battery
• Malfunction of the keyless operation key
• Malfunction of KOS-ECU
DIAGNOSTIC PROCEDURE
1. Replace the battery in the keyless operation key
and recheck the diagnosis code.
2. Replace the keyless operation key and recheck
the diagnosis code.
Code No.B1A24 Key ID not registered
CAUTION
• When the diagnosis code No. B1A24 is set, be
sure to diagnose the CAN bus line.
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSIS FUNCTION
KOS-ECU sets the diagnosis code No. B1A24 when
the key ID was not registered in it.
JUDGMENT CRITERIA
KOS-ECU determines that the abnormality is
present, if the key ID is not registered in it when the
ignition switch is turned ON.
PROBABLE CAUSES
• Malfunction of CAN bus line
• Key ID not registered
• Malfunction of KOS-ECU
DIAGNOSIS PROCEDURE
1. M.U.T.-III CAN bus diagnostics
2. Register the key ID and recheck the diagnosis
code.
42B-16
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
Code No.B1A25 Key ID unmatched
CAUTION
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSTIC FUNCTION
The KOS-ECU stores diagnosis code No. B1A25
when the received key ID is different from the registered one or the key slot cannot communicate with
the key correctly.
JUDGEMENT CRITERIA
KOS-ECU determines that the abnormality is
present, if the key ID does not match the one registered in it when the engine switch is turned ON by
the keyless operation key.
PROBABLE CAUSES
• Malfunction of the keyless operation key
• Malfunction of KOS-ECU
• Key is registered to another vehicle
DIAGNOSIS PROCEDURE
STEP 1. All of the registered keyless operation
keys should allow the engine switch to be turned
from OFF to ACC, ON, START positions.
(1) Prepare all of the registered keyless operation
keys.
(2) Remove the batteries from all of the keyless
operation keys (Refer to P.42B-98).
(3) Insert one of the keyless operation keys into the
key slot.
(4) Check whether the engine switch can be turned
from LOCK (OFF) to ACC, ON, START positions.
(5) Turn the engine switch to LOCK (OFF) position
again.
(6) Repeat the same procedure for the other keyless
operation keys.
(7) Install the batteries to all the keyless operation
keys.
Q: Is the check result normal?
The engine switch can be turned from LOCK (OFF)
to ACC, ON, START positions by operating all of
the keyless operation keys. : Check if the
diagnosis code is set. If the diagnosis code
is erased, the diagnosis is complete. If not,
go to Step 3.
The engine switch cannot be turned from LOCK
(OFF) to ACC, ON, START positions by operating
all of the keyless operation keys. : diagnosis code
No. Check whether diagnosis code B2352 is
stored.diagnosis code No. If diagnosis code
B2352 is stored, go to the troubleshooting
(Refer to P.42B-19). Repeat Step
1.diagnosis code No. If diagnosis code
B2352 is not stored, go to Step 2.
STEP 2. Register the keyless operation key(s)
which cannot activate the engine switch again.
Register the keyless operation key(s) which cannot
activate the engine switch again (Refer to P.42B-88).
Q: Is the check result normal?
All of the keyless operation keys can be registered
again. : Go to Step 3
All of the keyless operation keys cannot be
registered again. : The keyless operation key(s),
which cannot be registered, is defective. Put
it aside. Go to Step 3
STEP 3. Register all of the keyless operation
keys again.
(1) Register all of the registered keyless operation
keys again (Refer to P.42B-88).
NOTE: Exclude the keyless operation key(s)
which you put aside on Step 2.
(2) Remove the batteries from all of the keyless
operation keys (Refer to P.42B-98).
(3) Insert one of the keyless operation keys into the
key slot.
(4) Check whether the engine switch can be turned
from LOCK (OFF) to ACC, ON, START positions.
(5) Turn the engine switch to LOCK (OFF) position
again.
(6) Repeat the same procedure for the other keyless
operation keys.
(7) Install the batteries to all the keyless operation
keys.
Q: Is the check result normal?
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
The engine switch can be turned from LOCK (OFF)
to ACC, ON, START positions by operating all of
the keyless operation keys. : Check if the
diagnosis code is set. If the diagnosis code
is erased, the diagnosis is complete. If not,
go to Step 5.
The engine switch cannot be turned from LOCK
(OFF) to ACC, ON, START positions by operating
all of the keyless operation keys. : Go to Step 4
STEP 4. Replace the keyless operation key(s)
which cannot activate the engine switch with a
new one.
(1) Replace the keyless operation key(s) which
cannot activate the engine switch with a new one.
(2) Register a new keyless operation key (Refer to
P.42B-88).
(3) Check that all of the registered keyless operation
keys allow the engine switch to be turned from
OFF to ACC, ON, START positions.
a. Remove the batteries from all of the keyless
operation keys (Refer to P.42B-98).
b. Insert one of the keyless operation keys into
the key slot.
c. Check whether the engine switch can be
turned from LOCK (OFF) to ACC, ON, START
positions.
d. Turn the engine switch to LOCK (OFF)
position again.
e. Repeat the same procedure for the other
keyless operation keys.
f. Install the batteries to all the keyless
operation keys.
Q: Is the check result normal?
YES : Go to Step 6
NO : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
42B-17
STEP 5. Replace the KOS-ECU, and then register
all of the keyless operation keys again.
(1) Replace KOS-ECU and register the ID codes
(Refer to P.42B-88).
(2) Register all of the keyless operation keys again
(Refer to P.42B-88).
(3) Check that all of the registered keyless operation
keys allow the engine switch to be turned from
OFF to ACC, ON, START positions.
a. Remove the batteries from all of the keyless
operation keys (Refer to P.42B-98).
b. Insert one of the keyless operation keys into
the key slot.
c. Check whether the engine switch can be
turned from LOCK (OFF) to ACC, ON, START
positions.
d. Turn the engine switch to LOCK (OFF)
position again.
e. Repeat the same procedure for the other
keyless operation keys.
f. Install the batteries to all the keyless
operation keys.
Q: Is the check result normal?
YES : Go to Step 6
NO : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
STEP 6. Check whether the diagnosis code is
reset.
(1) Erase the diagnosis code.
(2) Turn the power supply mode of the engine switch
from OFF to ON.
(3) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
YES : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
Code No.B2101 IG SW start POS circuit low
Code No.B2102 IG SW start POS circuit high
CAUTION
• If the diagnosis code No. B2101 or B2102 is
set in KOS-ECU, always diagnose the CAN
bus lines.
• Before replacing the ECU, ensure that the
communication circuit is normal.
TROUBLE JUDGEMENT
If the actual engine switch status is different from the
engine switch status information received from
ETACS-ECU via CAN, KOS-ECU sets the diagnosis
code No. B2101 or B2102.
42B-18
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
JUDGEMENT CRITERIA
YES : Perform troubleshooting for the OSS-ECU
If the engine switch status is infeasible consecutively
ten times the KOS-ECU will judge that the system is
defective.
(Refer to Troubleshooting P.42B-11). On
completion, go to Step 3.
NO : Go to Step 3
B2101
• Engine switch power supply mode: OFF
• Engine switch information from ETACS-ECU: ON
B2102
• Engine switch power supply mode: ON
• Engine switch information from ETACS-ECU:
OFF
PROBABLE CAUSES
•
•
•
•
•
Malfunction of CAN bus line
Malfunction of the KOS-ECU
Malfunction of the OSS-ECU
Damaged wiring harness and connectors
Malfunction of ETACS-ECU
DIAGNOSTIC PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to diagnose the CAN bus lines.
Q: Is the check result normal?
YES : Go to Step 2
NO : Repair the CAN bus line (Refer to GROUP
54C − Troubleshooting ). On completion, go
to Step 2.
STEP 3. M.U.T.-III other system data list
Use M.U.T.-III to check the ETACS-ECU service
data. (Refer to GROUP 54A − ETACS-ECU, Service
Data Reference List ).
• Item 254: IG voltage
OK: System voltage
Q: Is the check result normal?
YES : Go to Step 4
NO : Perform troubleshooting for ETACS-ECU
(Refer to GROUP 54A − ETACS-ECU −
Troubleshooting ).
STEP 4. Check whether the diagnosis code is
reset.
(1) Erase the diagnosis code.
(2) Turn the power supply mode of the engine switch
from OFF to ON.
(3) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
YES : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
STEP 2. M.U.T.-III other system diagnosis code
Check if any diagnosis code is set to the OSS-ECU.
Q: Is the diagnosis code set?
Code No.B2204 Coding data mismatch
CAUTION
• When the diagnosis code No. B2204 is set, be
sure to diagnose the CAN bus line.
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSIS FUNCTION
If the vehicle information data on the CAN bus lines
is different from that registered with KOS-ECU,
KOS-ECU sets the diagnosis code No. B2204.
JUDGMENT CRITERIA
KOS-ECU determines that the abnormality is present
when the vehicle information registered in it does not
match the vehicle information on the CAN bus lines.
PROBABLE CAUSES
• Malfunction of CAN bus line
• Malfunction of KOS-ECU
• Malfunction of ETACS-ECU
DIAGNOSIS PROCEDURE
1. M.U.T.-III CAN bus diagnostics
2. M.U.T.-III other system diagnosis code
3. Check whether the diagnosis code is reset.
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
42B-19
Code No.B2206 Chassis No. mismatch
DIAGNOSIS FUNCTION
KOS-ECU sets diagnosis code No. B2206 when
chassis number registered in it and chassis number
that has been transmitted on the CAN bus do not
match.
PROBABLE CAUSES
• Malfunction of KOS-ECU (KOS-ECU being registered to another vehicle)
• Malfunction of engine-ECU (Chassis number registered in engine-ECU unmatched)
JUDGEMENT CRITERIA
DIAGNOSIS PROCEDURE
KOS-ECU determines that the abnormality is present
when chassis number registered in it and the one
that has been transmitted on the CAN bus do not
match.
1. Check of chassis number registered in the
engine-ECU and matching check of vehicle's
chassis number.
2. Check whether the diagnosis code is reset
(KOS-ECU).
3. Check whether the diagnosis code is reset
(engine-ECU).
Code No.B2352 Antenna fail
CAUTION
Before replacing the ECU, ensure that the communication circuit is normal.
DIAGNOSIS FUNCTION
If an open circuit or short to earth occurs in the key
slot, KOS-ECU sets the diagnosis code No. B2352.
JUDGMENT CRITERIA
When the engine switch power supply mode is set
from OFF to ON or the driver’s door is opened with
the engine switch power supply mode at OFF after
the battery-discharged keyless operation key is
inserted into the key slot, the KOS-ECU will send a
signal to the key slot. Then the key slot will send a
code to the keyless operation key via its antenna. If
the KOS-ECU detects open circuit or short circuit to
earth consecutively four times during the operation
above, the ECU will set this diagnosis code.
PROBABLE CAUSES
• Malfunction of the key slot
• Damaged wiring harness and connectors
• Malfunction of KOS-ECU
DIAGNOSIS PROCEDURE
STEP 1. Key slot check
Check that the key slot is normal (Refer to Inspection
P.42B-100).
Q: Is the check result normal?
YES : Go to Step 2
NO : Replace the key slot.
STEP 2. Check of short to power supply, short to
earth, and open circuit in ANTP, ANTG line
between the key slot connector and the
KOS-ECU connector.
Q: Is the check result normal?
YES : Go to Step 3
NO : Repair the wiring harness.
STEP 3. Check whether the diagnosis code is
reset.
(1) Open the driver's door.
(2) Turn the power supply mode of the engine switch
from OFF to ON.
(3) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
YES : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
NO : The diagnosis is complete.
42B-20
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
Code No.B2400 KOS key registration fail
CAUTION
• If the diagnosis code No. B2400 is set, diagnose the CAN bus lines.
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSIS FUNCTION
If the registration of the keyless operation key ID to
KOS-ECU fails, KOS-ECU sets the diagnosis code
No. B2400.
JUDGEMENT CRITERIA
Assuming that another keyless operation key has
already been registered with KOS-ECU, if the registration of the keyless operation key ID fails when a
new keyless operation key is added or the existing
key is replaced, KOS-ECU determines that there is a
problem.
PROBABLE CAUSES
• At the registration, there is an object near the
keyless operation key which interferes with the
communication.
• Wrong keyless operation key registration method
• Failure of keyless operation key code registration
• Battery drain of keyless operation key
• Malfunction of the keyless operation key
• Malfunction of CAN bus line
• Malfunction of KOS-ECU
DIAGNOSIS PROCEDURE
STEP 1. Interference check at keyless operation
key registration
At the keyless operation key registration, check if
there is another key nearby or anything that interferes with the communication (magnets or objects
that generate radio waves such as air-cleaning
devices with a power plug).
Q: Are there other keys or anything that interferes
with the communication?
YES : Move away or remove other keys or
anything that interferes with the
communication.
NO : Go to Step 2
STEP 2. Check of keyless operation key
registration method
Check that the correct method was used at the registration of keyless operation key.
Q: Is the check result normal?
YES : Go to Step 3
NO : Register the keyless operation key.(Refer to
P.42B-88.)
STEP 3. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to diagnose the CAN bus lines.
Q: Is the check result normal?
YES : Go to Step 4
NO : Repair the CAN bus line (Refer to GROUP
54C − Troubleshooting ). On completion, go
to Step 4.
STEP 4. M.U.T.-III diagnosis code
Check if any diagnosis code is set to the KOS-ECU.
Q: Is the diagnosis code set?
YES : Refer to diagnosis code chart P.42B-11.
NO : Go to Step 5
STEP 5. Replace the battery in the keyless
operation key and recheck the diagnosis code.
Replace the battery of the keyless operation key,
which the diagnosis code is stored in, with new one,
register the key ID and keyless operation key ID
(refer to P.42B-88), and check whether the diagnosis
code is stored again.
(1) Turn the power supply mode of the engine switch
from OFF to ON.
(2) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
YES : Go to Step 6
NO : The diagnosis is complete (Discharged
battery).
STEP 6. Replace the keyless operation key and
recheck the diagnosis code.
Replace the keyless operation key for which the
diagnosis code is set with a new one, register the key
ID and keyless operation key ID (refer to P.42B-88),
and check whether the diagnosis code is reset again.
(1) Turn the power supply mode of the engine switch
from OFF to ON.
(2) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
42B-21
YES : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
NO : The diagnosis is complete.
Code No.B2401 Keyless/KOS key ID not registered
CAUTION
• If the diagnosis code No. B2401 is set, be sure
to diagnose the CAN bus line.
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSIS FUNCTION
If no keyless operation key ID is registered with
KOS-ECU, KOS-ECU sets the diagnosis code No.
B2401.
JUDGMENT CRITERIA
If the number of the registered keyless operation
keys or spare key is 0, or the registration of a keyless
operation key fails when the number of the registered
keyless operation keys is 0, it is judged as abnormal.
PROBABLE CAUSES
• The registration of a keyless operation key ID
fails when no keyless operation key ID is registered.
• Malfunction of the keyless operation key
• Malfunction of KOS-ECU
DIAGNOSIS PROCEDURE
1. Register the keyless operation key ID and
recheck the diagnosis code.
2. Replace the keyless operation key and recheck
the diagnosis code.
Code No.B240A DR side antenna(outdoor) open
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
DIAGNOSTIC FUNCTION
If an open circuit is detected in the outside transmission antenna assembly (driver's side), the diagnosis
code is set.
JUDGMENT CRITERIA
While the engine switch is turned to the OFF position, the system has detected an open circuit in the
antenna.
PROBABLE CAUSES
• Malfunction of the outside transmission antenna
assembly (driver's side)
• Malfunction of the KOS-ECU
• Damaged wiring harness and connectors
DIAGNOSIS PROCEDURE
STEP 1. Check of short to power supply, short to
earth, and open circuit in EDRP, EDRG line
between the outside transmission antenna
assembly (driver's side) connector and the
KOS-ECU connector.
Q: Is the check result normal?
YES : Go to Step 2
NO : Repair the connectors or wiring harness.
STEP 2. Keyless operation system
communication test
Check that the communication with the outside transmission antenna assembly (driver's side) is normal
(Refer to Antenna Test P.42B-89).
Antennas to be checked
• Front antenna (outdoor)
OK: Normal is displayed.
Q: Is the check result normal?
YES : Go to Step 3
NO : Replace the outside transmission antenna
assembly (driver's side).
42B-22
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
STEP 3. Check whether the diagnosis code is
reset.
(1) Erase the diagnosis code.
(2) Turn the power supply mode of the engine switch
from OFF to ON.
(3) Check if the diagnosis code is set.
(4) Turn the power supply mode of the engine switch
from OFF to ON.
Q: Is the diagnosis code set?
YES : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Deal with Intermittent Malfunction ).
Code No.B240B PS side antenna(outdoor) open
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
DIAGNOSTIC FUNCTION
If an open circuit is detected in the outside transmission antenna assembly (passenger's side), the diagnosis code is set.
JUDGMENT CRITERIA
While the engine switch is turned to the OFF position, the system has detected an open circuit in the
antenna.
STEP 2. Keyless operation system
communication test
Check that the communication with the outside transmission antenna assembly (passenger's side) is normal (Refer to Antenna Test P.42B-89).
Antennas to be checked
• Front side antenna (outdoor)
OK: Normal is displayed.
Q: Is the check result normal?
YES : Go to Step 3
NO : Replace the outside transmission antenna
assembly (passenger's side).
PROBABLE CAUSES
• Malfunction of the outside transmission antenna
assembly (passenger's side)
• Malfunction of the KOS-ECU
• Damaged wiring harness and connectors
DIAGNOSIS PROCEDURE
STEP 1. Check of short to power supply, short to
earth, and open circuit in EASP, EASG line
between the outside transmission antenna
assembly (passenger's side) connector and the
KOS-ECU connector.
Q: Is the check result normal?
YES : Go to Step 2
NO : Repair the connectors or wiring harness.
STEP 3. Check whether the diagnosis code is
reset.
(1) Erase the diagnosis code.
(2) Turn the power supply mode of the engine switch
from OFF to ON.
(3) Check if the diagnosis code is set.
(4) Turn the power supply mode of the engine switch
from OFF to ON.
Q: Is the diagnosis code set?
YES : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Deal with Intermittent Malfunction ).
Code No.B240C Tail gate antenna(outdoor) open
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
DIAGNOSTIC FUNCTION
If an open circuit is detected in the outside transmis-
sion antenna assembly (tailgate), the diagnosis code
is set.
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
JUDGMENT CRITERIA
While the engine switch is turned to the OFF position, the system has detected an open circuit in the
antenna.
PROBABLE CAUSES
• Malfunction of the outside transmission antenna
assembly (tailgate)
• Malfunction of the KOS-ECU
• Damaged wiring harness and connectors
DIAGNOSTIC PROCEDURE
42B-23
STEP 2. Keyless operation system
communication test
Check that the communication with the outside transmission antenna assembly (tailgate) is normal (Refer
to Antenna Test P.42B-89).
Antennas to be checked
• Tailgate antenna (outdoor)
OK: Normal is displayed.
Q: Is the check result normal?
YES : Go to Step 3
NO : Replace the outside transmission antenna
assembly (tailgate).
STEP 1. Check of short to power supply, short to
earth, and open circuit in EGTP, EGTG line
between the outside transmission antenna
assembly (tailgate) connector and the KOS-ECU
connector.
Q: Is the check result normal?
YES : Go to Step 2
NO : Repair the connectors or wiring harness.
STEP 3. Check whether the diagnosis code is
reset.
(1) Erase the diagnosis code.
(2) Turn the power supply mode of the engine switch
from OFF to ON.
(3) Check if the diagnosis code is set.
(4) Turn the power supply mode of the engine switch
from OFF to ON.
Q: Is the diagnosis code set?
YES : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Deal with Intermittent Malfunction ).
Code No.B240D Front antenna(indoor) open
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
DIAGNOSTIC FUNCTION
If an open circuit is detected in the inside transmission antenna (front), the diagnosis code is set.
JUDGMENT CRITERIA
While the engine switch is turned to the OFF position, the system has detected an open circuit in the
antenna.
PROBABLE CAUSES
• Malfunction of the inside transmission antenna
assembly (front)
• Malfunction of the KOS-ECU
• Damaged wiring harness and connectors
DIAGNOSIS PROCEDURE
STEP 1. Check of short to power supply, short to
earth, and open circuit in INFP, INFG line between
the inside transmission antenna assembly (front)
connector and the KOS-ECU connector.
Q: Is the check result normal?
YES : Go to Step 2
NO : Repair the connectors or wiring harness.
42B-24
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
STEP 2. Keyless operation system
communication test
Check that the communication with the inside transmission antenna assembly (front) is normal (Refer to
Antenna Test P.42B-89).
Antennas to be checked
Front antenna (indoor)
OK: Normal is displayed.
Q: Is the check result normal?
YES : Go to Step 3
NO : Replace the inside transmission antenna
assembly (front).
STEP 3. Check whether the diagnosis code is
reset.
(1) Erase the diagnosis code.
(2) Turn the power supply mode of the engine switch
from OFF to ON.
(3) Check if the diagnosis code is set.
(4) Turn the power supply mode of the engine switch
from OFF to ON.
Q: Is the diagnosis code set?
YES : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Deal with Intermittent Malfunction ).
Code No.B240E RR antenna(indoor) open
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
DIAGNOSTIC FUNCTION
If an open circuit is detected in the inside transmission antenna (rear), the diagnosis code is set.
JUDGMENT CRITERIA
While the engine switch is turned to the OFF position, the system has detected an open circuit in the
antenna.
PROBABLE CAUSES
• Malfunction of the inside transmission antenna
assembly (rear)
• Malfunction of the KOS-ECU
• Damaged wiring harness and connectors
DIAGNOSIS PROCEDURE
STEP 1. Check of short to power supply, short to
earth, and open circuit in INRP, INRG line
between the inside transmission antenna
assembly (rear) connector and the KOS-ECU
connector.
Q: Is the check result normal?
YES : Go to Step 2
NO : Repair the connectors or wiring harness.
STEP 2. Keyless operation system
communication test
Check that the communication with the inside transmission antenna assembly (rear) is normal (Refer to
Antenna Test P.42B-89).
Antennas to be checked
Rear antenna (indoor)
OK: Normal is displayed.
Q: Is the check result normal?
YES : Go to Step 3
NO : Replace the inside transmission antenna
assembly (rear).
STEP 3. Check whether the diagnosis code is
reset.
(1) Erase the diagnosis code.
(2) Turn the power supply mode of the engine switch
from OFF to ON.
(3) Check if the diagnosis code is set.
(4) Turn the power supply mode of the engine switch
from OFF to ON.
Q: Is the diagnosis code set?
YES : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Deal with Intermittent Malfunction ).
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
42B-25
Code No.B2416 ECU internal error
DIAGNOSIS FUNCTION
PROBABLE CAUSES
KOS-ECU sets diagnosis code No. B2416 when it
determines itself to be in abnormal status.
Malfunction of KOS-ECU
JUDGMENT CRITERIA
KOS-ECU determines that the abnormality is
present, if the data abnormality is found when the
ignition switch is turned ON and then EEPROM is
written.
DIAGNOSIS PROCEDURE
1. Diagnosis code recheck.
Code No.B2417 OSS authentification error
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
DIAGNOSIS FUNCTION
When abnormal data is received from OSS-ECU as
a result of the certification communication with
OSS-ECU, KOS-ECU sets the diagnosis code
No.B2417.
JUDGEMENT CRITERIA
PROBABLE CAUSES
• Malfunction of OSS-ECU (OSS-ECUs have been
interchanged between two vehicles.)
• Malfunction of KOS-ECU
DIAGNOSIS PROCEDURE
1. M.U.T.-III other system diagnosis code.
2. M.U.T.-III diagnosis code.
3. Check whether the diagnosis code is reset.
When abnormal data is received from OSS-ECU,
KOS-ECU determines that a problem has occurred.
Code No.B2418 OSS authentification timeout
CAUTION
• If the diagnosis code No. B2418 is set, diagnose the CAN bus lines.
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSIS FUNCTION
KOS-ECU checks whether the OSS-ECU data is
received via CAN bus line, and it sets the diagnosis
code No.B2418 if the data cannot be received.
JUDGEMENT CRITERIA
If the reception of data from OSS-ECU received via
CAN bus line (OSS-ECU sends data to KOS-ECU
via CAN bus line) is not possible, KOS-ECU determines that a problem has occurred.
PROBABLE CAUSES
• Malfunction of CAN bus line
• Malfunction of OSS-ECU
• Malfunction of KOS-ECU
DIAGNOSIS PROCEDURE
1. M.U.T.-III CAN bus diagnostics
2. M.U.T.-III other system diagnosis code
3. Check whether the diagnosis code is reset.
42B-26
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
Code No.B2419 LF antenna voltage short
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
DIAGNOSTIC FUNCTION
When a short to power supply is detected in the wiring harness in between the inside and outside transmission antenna assembly, KOS-ECU sets the
diagnosis code No.B2419.
NOTE: When the diagnosis code No.B2419 is set,
KOS-ECU does not perform the certification with the
keyless operation key.
JUDGMENT CRITERIA
When an abnormality is found with the wiring harness in between the inside and outside transmission
antenna assembly, KOS-ECU determines that a
problem has occurred.
PROBABLE CAUSES
• Damaged wiring harness and connectors
• Malfunction of the KOS-ECU
DIAGNOSIS PROCEDURE
STEP 1. Check the wiring harness between
KOS-ECU connector and each inside and outside
transmission antenna assembly connector.
Check the following wiring harnesses for short to
power supply.
• Check of short to power supply, short to earth,
and open circuit in EDRP, EDRG line between
KOS-ECU connector and outside transmission
antenna assembly (driver’s side) connector
• Check of short to power supply, short to earth,
and open circuit in EASP, EASG line between
KOS-ECU connector and outside transmission
antenna assembly (passenger’s side) connector
• Check of short to power supply, short to earth,
and open circuit in INFP, INFG line between
KOS-ECU connector and inside transmission
antenna assembly (front) connector
• Check of short to power supply, short to earth,
and open circuit in INRP, INRG line between
KOS-ECU connector and inside transmission
antenna assembly (rear) connector
• Check of short to power supply, short to earth,
and open circuit in EGTP, EGTG line between
KOS-ECU connector and outside transmission
antenna assembly (tailgate) connector
Q: Is the check result normal?
YES : Go to Step 2
NO : Repair the connectors or wiring harness.
STEP 2. Check whether the diagnosis code is
reset.
(1) Erase the diagnosis code.
(2) Turn the power supply mode of the engine switch
from OFF to ON.
(3) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
YES : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
NO : The diagnosis is complete.
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
42B-27
Code No.B241A ESL power control circuit earth
Code No.B241B ESL power control circuit open
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
DIAGNOSIS FUNCTION
B241A
• When a short to earth occurs in the wiring harness between the electrical steering lock and
KOS-ECU, KOS-ECU sets the diagnosis code
No.B241A.
B241B
• When an open circuit or short to power supply
occurs in the wiring harness between the electrical steering lock and KOS-ECU, KOS-ECU sets
the diagnosis code No.B241B.
JUDGEMENT CRITERIA
B241A
• When a short to earth occurs in the wiring harness, KOS-ECU determines that a problem has
occurred.
B241B
• When an open circuit or short to power supply
occurs in the wiring harness, KOS-ECU determines that a problem has occurred.
PROBABLE CAUSES
• Malfunction of the electronic steering lock
• Malfunction of the KOS-ECU
• Damaged wiring harness and connectors
DIAGNOSIS PROCEDURE
STEP 1. Check of short to power supply, short to
earth, and open circuit in PCK line between the
electronic steering lock connector and the
KOS-ECU connector, between the OSS-ECU
connector and the KOS-ECU connector.
Q: Is the check result normal?
YES : Go to Step 2
NO : Repair the connectors or wiring harness.
STEP 2. Voltage measurement at electronic
steering lock connector (PCK line)
(1) Disconnect the connector, and measure the
voltage at the wiring harness-side connector.
(2) Open the driver's door.
(3) Measure the voltage at the electronic steering
lock connector (PCK line) and the body earth.
OK: System voltage
Q: Is the check result normal?
YES : Go to Step 3
NO : Replace the electronic steering lock. Go to
Step 3.
STEP 3. Check whether the diagnosis code is
reset.
(1) Erase the diagnosis code.
(2) Turn the power supply mode of the engine switch
from OFF to ON.
(3) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
YES : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
Code No.U0141 ETACS CAN timeout
CAUTION
• If the diagnosis code No. U0141 is set, be sure
to diagnose the CAN bus line.
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSIS FUNCTION
If no signal from ETACS can be received, KOS-ECU
sets the diagnosis code No. U0141.
PROBABLE CAUSES
• Malfunction of CAN bus line
• Malfunction of KOS-ECU
42B-28
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
• Malfunction of ETACS-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to diagnose the CAN bus lines.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus line (Refer to GROUP
54C − Troubleshooting ).
STEP 2. M.U.T.-III other system diagnosis code
Check if any diagnosis code is set to the
ETACS-ECU.
Q: Is the diagnosis code set?
YES : Perform troubleshooting for ETACS (Refer
to GROUP 54A − ETACS − Troubleshooting
).
NO : Go to Step 3.
STEP 3. M.U.T.-III other system diagnosis code
Check if diagnosis code No.U0141 is set to the combination meter.
Q: Is the diagnosis code set?
YES : Go to Step 4.
NO : Go to Step 5.
STEP 4. Check whether the diagnosis code is
reset.
Recheck if the diagnosis code is set to the
KOS-ECU.
(1) Erase the diagnosis code.
(2) Turn the power supply mode of the engine switch
from OFF to ON.
(3) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
YES : Replace the ETACS-ECU.
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
STEP 5. Check whether the diagnosis code is
reset.
Recheck if the diagnosis code is set.
(1) Erase the diagnosis code.
(2) Turn the power supply mode of the engine switch
from OFF to ON.
(3) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
YES : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to cope with Intermittent Malfunction ).
Code No.U0155 Meter CAN timeout
CAUTION
• If the diagnosis code No. U0155 is set, be sure
to diagnose the CAN bus line.
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSIS FUNCTION
If no signal from the combination meter can be
received, KOS-ECU sets the diagnosis code No.
U0155.
PROBABLE CAUSES
• Malfunction of CAN bus line
• Combination meter malfunction
• Malfunction of KOS-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to diagnose the CAN bus lines.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus line (Refer to GROUP
54C − Troubleshooting ).
STEP 2. M.U.T.-III other system diagnosis code
Check if any diagnosis code is set to the combination
meter.
Q: Is the diagnosis code set?
YES : Perform troubleshooting for the combination
meter (Refer to GROUP 54A − Combination
Meter − Troubleshooting ).
NO : Go to Step 3.
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
STEP 3. M.U.T.-III other system diagnosis code
Check if diagnosis code No.U0155 is set to the
ETACS-ECU.
Q: Is the diagnosis code set?
YES : Go to Step 4.
NO : Go to Step 5.
STEP 4. Check whether the diagnosis code is
reset.
Recheck if the diagnosis code is set to the
KOS-ECU.
(1) Erase the diagnosis code.
(2) Turn the power supply mode of the engine switch
from OFF to ON.
(3) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
42B-29
YES : Replace the ETACS-ECU.
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
STEP 5. Check whether the diagnosis code is
reset.
Recheck if the diagnosis code is set.
(1) Erase the diagnosis code.
(2) Turn the power supply mode of the engine switch
from OFF to ON.
(3) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
YES : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
Code No. U0164: A/C-ECU CAN timeout
CAUTION
• If diagnosis code No. U0164 is set, be sure to
diagnose the CAN bus line.
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSIS FUNCTION
If the signal from A/C-ECU cannot be received, the
KOS-ECU sets diagnosis code No. U0164.
PROBABLE CAUSES
• Malfunction of CAN bus line
• Malfunction of A/C-ECU
• Malfunction of KOS-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to diagnose the CAN bus lines.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus line (Refer to GROUP
54C − Troubleshooting ).
STEP 2. M.U.T.-III other system diagnosis code
Check if the A/C-ECU related diagnosis code is set.
Q: Is the diagnosis code set?
YES : Troubleshoot the A/C or heater (GROUP
55, Auto A/C Diagnosis ).
NO : Go to Step 3.
STEP 3. M.U.T.-III other system diagnosis code
Check if diagnosis code No.U0164 is set to the combination meter.
Q: Is the diagnosis code set?
YES : Go to Step 4.
NO : Go to Step 5.
STEP 4. Check whether the diagnosis code is
reset.
Recheck if the diagnosis code is set to the
KOS-ECU.
(1) Erase the diagnosis code.
(2) Turn the power supply mode of the engine switch
from OFF to ON.
(3) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
YES : Replace the A/C-ECU.
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
42B-30
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
STEP 5. Check whether the diagnosis code is
reset.
Recheck if the diagnosis code is set.
(1) Erase the diagnosis code.
(2) Turn the power supply mode of the engine switch
from OFF to ON.
(3) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
YES : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
Code No. U0230: Electric tailgate control unit CAN timeout
CAUTION
• If the diagnosis code No. U0230 is set, be sure
to diagnose the CAN bus line.
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSTIC FUNCTION
If no signal from the electric tailgate control unit can
be received, KOS-ECU sets the diagnosis code No.
U0230.
PROBABLE CAUSES
• Malfunction of the electric tailgate control unit
• Malfunction of KOS-ECU
DIAGNOSIS PROCEDURE
1. M.U.T.-III CAN bus diagnostics
2. Check the M.U.T.-III Diagnosis code for other
systems
Check that a diagnosis code is set in the electric
tailgate control unit.
3. Diagnosis code recheck
• Malfunction of CAN bus line
Code No. U0245 AND CAN timeout
CAUTION
• If diagnosis code No. U0245 is set, be sure to
diagnose the CAN bus line.
• Before replacing ECU, ensure that the communication circuit is normal.
DIAGNOSTIC FUNCTION
When the signal from the CAN box unit (MMCS) cannot be received, KOS-ECU sets the diagnosis code
No.U0245.
JUDGEMENT CRITERIA
Check Conditions
• When all the following conditions are met.
a. Ignition switch: ON
b. ETACS-ECU system voltage is at 10 to 16 V.
Judgment Criterion
• After the following condition is met, 2,500 ms or
more have elapsed.
a. CAN signal from MMCS cannot be received.
PROBABLE CAUSES
•
•
•
•
•
Malfunction of the CAN bus line
CAN box unit malfunction
Malfunction of MMCS power supply circuit
MMCS malfunction
Error in option coding setting of ETACS-ECU
(replacement with the navigation unit not compatible with CAN communication)
• Malfunction of KOS-ECU
DIAGNOSIS PROCEDURE
1.
2.
3.
4.
M.U.T.-III CAN bus diagnosis
Check of ETACS-ECU option coding
ETACS-ECU diagnosis code check
KOS-ECU diagnosis code recheck
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
42B-31
Code No.U1000 OSS CAN timeout
CAUTION
• If the diagnosis code No. U1000 is set, diagnose the CAN bus lines.
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSIS FUNCTION
When the signal from OSS-ECU cannot be received,
KOS-ECU sets the diagnosis code No.U1000.
PROBABLE CAUSES
• Malfunction of CAN bus line
• Malfunction of OSS-ECU
• Malfunction of KOS-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to diagnose the CAN bus lines.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus line (Refer to GROUP
54C − Troubleshooting ). On completion, go
to Step 2.
STEP 2. Check the M.U.T.-III Diagnosis code for
other systems
Check that the OSS-ECU set a diagnosis code.
Q: Is the diagnosis code set?
YES : Diagnose the OSS-ECU. Refer to
Troubleshooting .
NO : Go to Step 3
STEP 3. M.U.T.-III other system diagnosis code
Check if diagnosis code No.U1000 is set to the
ETACS-ECU.
Q: Is the diagnosis code set?
YES : Go to Step 4.
NO : Go to Step 5.
STEP 4. Check whether the diagnosis code is
reset.
Recheck if the diagnosis code is set.
(1) Erase the diagnosis code.
(2) Turn the power supply mode of the engine switch
from OFF to ON.
(3) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
YES : Replace the OSS-ECU.
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
STEP 5. Check whether the diagnosis code is
reset.
Recheck if the diagnosis code is set.
(1) Erase the diagnosis code.
(2) Turn the power supply mode of the engine switch
from OFF to ON.
(3) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
YES : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
Code No. U1190: No receive fault detect signal
CAUTION
• If the diagnosis code No. U1190 is set, diagnose the CAN bus lines.
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSTIC FUNCTION
When the signal from the ETACS-ECU cannot be
received, KOS-ECU sets the diagnosis code
No.U1190.
JUDGEMENT CRITERIA
Check Conditions
• When all the following conditions are met.
a. Power supply mode: ON
b. ETACS-ECU system voltage is at 10 to 16 V.
Judgment Criterion
• After the following condition is met, 5,000 ms or
more have elapsed.
KEYLESS OPERATION SYSTEM (KOS)
42B-32
TROUBLESHOOTING <KOS-ECU>
a. CAN signal from the ETACS-ECU cannot be
received.
YES : Diagnose the ETACS-ECU (Refer to
GROUP 54A, Troubleshooting ).
NO : Go to Step 3.
PROBABLE CAUSES
• Malfunction of the CAN bus line
• Malfunction of ETACS-ECU
• Malfunction of KOS-ECU
STEP 3. M.U.T.-III other system diagnosis code
Check again if the diagnosis code is set to the
ETACS-ECU.
Q: Is the diagnosis code set?
YES : Replace the ETACS-ECU.
NO : Go to Step 4.
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus line (Refer to GROUP
54C − Troubleshooting ).
STEP 2. M.U.T.-III other system diagnosis code
Check again if the diagnosis code is set to the
ETACS-ECU.
Q: Is the diagnosis code set?
STEP 4. Diagnosis code recheck
Check again if the diagnosis code is set to the
KOS-ECU.
(1) Erase the diagnosis code.
(2) Turn the engine switch from the LOCK (OFF)
position to the ON position.
(3) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
YES : Replace the KOS-ECU.
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to cope with Intermittent Malfunction ).
Code No. U1195 Coding not completed
CAUTION
• If diagnosis code No. U1195 is set, diagnose
the CAN bus lines.
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSTIC FUNCTION
When the coding data is not registered, KOS-ECU
sets the diagnosis code No.U1195.
JUDGEMENT CRITERIA
Judgment Criterion
• Any of the coding is not completed normally.
PROBABLE CAUSES
• Malfunction of the CAN bus line
• Variant coding for ETACS-ECU has not been
implemented.
• Malfunction of KOS-ECU
• ETACS-ECU malfunction
DIAGNOSIS PROCEDURE
1. M.U.T.-III CAN bus diagnosis
Check Conditions
• When all the following conditions are met.
2. ETACS-ECU diagnosis code check
a. Coding is not completed.
3. KOS-ECU diagnosis code recheck
b. For 5 seconds since the start of the reception
DATA LIST REFERENCE TABLE
of ignition status signal (ON or during crankM1429605000329
ing) transmitted from ETACS-ECU.
Item No.
Check item
Check condition
Normal condition
1*
Received KOS key
data(ID)
−
Memorised keyless
operation key ID
2
Received KOS key
data(button)
−
Switch display of the
keyless operation key
KEYLESS OPERATION SYSTEM (KOS)
42B-33
TROUBLESHOOTING <KOS-ECU>
Item No.
Check item
Check condition
Normal condition
3
Driver’s door
lock/unlock SW
Driver’s door lock/unlock switch: ON
ON
Driver’s door lock/unlock switch: OFF
OFF
Passenger’s door
lock/unlock SW
Passenger’s door lock/unlock switch:
ON
ON
Passenger’s door lock/unlock switch:
OFF
OFF
5
7
Tail gate lock SW
Tailgate lock release handle lock switch: ON
ON
Tailgate lock release handle lock switch: OFF
OFF
8
Tail gate unlock SW
Tailgate lock release handle (open
switch): ON
ON
Tailgate lock release handle (open
switch): OFF
OFF
−
Number of the keyless
operation keys
memorised
14
Memorized KOS keys
15*
Memorized emergency −
KOS keys
NOTE: * shows that it is displayed but not used.
Number of the
emergency keys
memorised
ACTUATOR TEST TABLE
M1429605100081
Item No.
Check item
Driven component
1
Outer buzzer
Forces to sound the outer buzzer.
TROUBLE SYMPTOM CHART
M1429604501056
Trouble symptom
Inspection Reference
procedure page
number
Cannot communicate with KOS-ECU using the M.U.T.-III.
1
P.42B-34
The keyless operation key cannot be registered using the M.U.T.-III.
2
P.42B-34
Abnormality in KOS-ECU power supply and earth circuits.
3
P.42B-35
Keyless operation warning display does not disappear.
4
P.42B-36
No door will be locked or unlocked by operating a lock/unlock switch on any door. 5
P.42B-37
Driver's door lock/unlock switch does not work.
6
P.42B-38
Front passenger's door lock/unlock switch does not work.
7
P.42B-38
The lock switch and open switch of the tailgate lock release handle do not work.
8
P.42B-39
The lock switch of the tailgate lock release handle does not perform the locking
operation.
9
P.42B-40
The open switch of the tailgate lock release handle does not perform the
unlocking operation.
10
P.42B-41
Keyless entry function does not work.
11
P.42B-42
KOS timer lock function does not work.
12
P.42B-43
42B-34
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
Trouble symptom
Inspection Reference
procedure page
number
Keyless entry hazard answerback function or the room lamp answerback function 13
does not work normally.
P.42B-44
Multimode keyless entry function does not work at all.
14
P.42B-45
Outer buzzer does not sound.
15
P.42B-45
Power door locks with selective unlocking does not work.
16
P.42B-46
SYMPTOM PROCEDURES
Inspection Procedure 1: Cannot communicate with KOS-ECU using the M.U.T.-III.
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
COMMENTS ON TROUBLE SYMPTOM
KOS-ECU is communicating with M.U.T.-III via CAN.
Therefore, communication error of KOS-ECU is suspected.
PROBABLE CAUSES
• Malfunction of the power supply and the earth of
KOS-ECU
• Malfunction of CAN bus line
DIAGNOSIS PROCEDURE
1. M.U.T.-III CAN bus diagnostics.
2. Check the power supply circuit and the earth
circuit to KOS-ECU.
Refer to Inspection Procedure 3 "Abnormality in
KOS-ECU power supply and earth circuits"
P.42B-35.
3. Retest the system.
Inspection Procedure 2: The keyless operation key cannot be registered using the M.U.T.-III.
CAUTION
Before replacing the ECU, ensure that the communication circuit is normal.
COMMENTS ON TROUBLE SYMPTOM
If only some keyless operation keys cannot be registered, the keyless operation key itself may be faulty.
If no keyless operation key can be registered, the
key assembly may have already been registered for
another vehicle, or the KOS-ECU may be faulty.
PROBABLE CAUSES
• Insufficient insertion of keyless operation key into
key slot
• CAN communication error with OSS-ECU
• OSS-ECU key code not registered
• Malfunction of the keyless operation key
• Malfunction of KOS-ECU
• Keyless operation key already registered to
another vehicle
DIAGNOSIS PROCEDURE
STEP 1. Sufficiently insert the keyless operation
key into the key slot, and then check the trouble
symptom.
Insert the keyless operation key into the key slot
again, and check whether the keyless operation key
can be registered.
Q: Is the check result normal?
YES : The procedure is complete.
NO : Go to Step 2
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
STEP 2. Interference check of keyless operation
key when it is inserted in the key slot
Check if there is another keyless operation key
nearby or anything that interferes with the communication (magnets or objects that generate radio waves
such as air-cleaning devices with a power plug).
Q: Are there other keys or anything that interferes
with the communication?
YES : Move away or remove other keyless
operation keys or anything that interferes
with the communication. Then, go to Step 3.
NO : Go to Step 4
STEP 3. Retest the system
Check that the keyless operation key can be registered.
Q: Is the check result normal?
YES : The procedure is complete.
NO : Go to Step 4
STEP 4. M.U.T.-III diagnosis code
Check if any diagnosis code is set to the KOS-ECU.
Q: Is the diagnosis code set?
YES : Perform troubleshooting for the KOS-ECU
(Refer to troubleshooting P.42B-11).
NO : Go to Step 5
STEP 5. M.U.T.-III other system diagnosis code
Check if any diagnosis code is set to the OSS-ECU.
Q: Is the diagnosis code set?
YES : Perform troubleshooting for the OSS-ECU
(Refer to troubleshooting P.42B-53).
NO : Go to Step 6
42B-35
STEP 6. Check which keyless operation key
cannot be registered.
Q: Can any one of the keyless operation keys be
registered?
YES (Only some keys) : Replace the key that
cannot be registered and register the ID
codes (Refer to P.42B-88). After registering
the ID codes, go to Step 8.
NO (All keys) : Go to Step 7
STEP 7. Retest the system
Check the M.U.T.-III screen when the key was not
able to be registered.
Q: Is the error message of M.U.T.-III screen
"Abnormality in key"?
YES (Abnormality in key) : Carry out diagnosis
code B1A25: Key ID unmatched (Refer to
P.42B-11). Then, go to Step 8.
NO (ECU internal error) : Replace KOS-ECU and
register the ID codes (Refer to P.42B-88).
STEP 8. Retest the system
Check that the keyless operation key can be registered.
Q: Is the check result normal?
YES : The procedure is complete.
NO : Go to Step 9
STEP 9. Check whether the diagnosis code is
reset.
(1) Turn the power supply mode of the engine switch
from OFF to ON.
(2) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
YES : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
NO : The procedure is complete.
Inspection Procedure 3: Abnormality in KOS-ECU power supply and earth circuits.
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communication circuit are normal.
PROBABLE CAUSES
• Damaged wiring harness and connectors
• Malfunction of KOS-ECU
DIAGNOSIS PROCEDURE
STEP 1. Resistance measurement at KOS-ECU
connector (GND terminal)
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Measure the resistance between the KOS-ECU
42B-36
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
connector (GND terminal) and body earth.
OK: Continuity exists (2 Ω or less)
Q: Is the check result normal?
YES : Go to Step 3.
NO : Go to Step 2.
STEP 2. Check of open circuit in GND line
between KOS-ECU connector and body earth
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
NO : Repair the connector(s) or wiring harness.
STEP 3. Voltage measurement at KOS-ECU
connector (IG1 terminal)
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Check the voltage between the KOS-ECU
connector (IG1 terminal) and body earth.
OK: System voltage
Q: Is the check result normal?
YES : Go to Step 5.
NO : Go to Step 4.
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
NO : Repair the connector(s) or wiring harness.
STEP 5. Voltage measurement at KOS-ECU
connector (PWR terminal)
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Check the voltage between the KOS-ECU
connector (PWR terminal) and body earth.
OK: System voltage
Q: Is the check result normal?
YES : Replace the KOS-ECU and register the
chassis number (Refer to P.42B-93).
NO : Go to Step 6.
STEP 6. Check of short to power supply, short to
earth, and open circuit in PWR line between
fusible link (4) and KOS-ECU connector
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
NO : Repair the connector(s) or wiring harness.
STEP 4. Check of short to power supply, short to
earth, and open circuit in IG1 line between
ETACS-ECU connector and KOS-ECU connector
Q: Is the check result normal?
Inspection Procedure 4: Keyless operation warning display does not disappear.
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communication circuit are normal.
PROBABLE CAUSES
•
•
•
•
Malfunction of CAN bus line
Malfunction of combination meter
Damaged wiring harness and connectors
Malfunction of the KOS-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to diagnose the CAN bus lines.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus line (Refer to GROUP
54C − Troubleshooting ). On completion, go
to Step 2.
STEP 2. M.U.T.-III other system diagnosis code
Check if any diagnosis code is set to the combination
meter.
Q: Is the diagnosis code set?
YES : Perform troubleshooting for the combination
meter (Refer to GROUP 54A − Combination
Meter − Troubleshooting ).
NO : Go to Step 3.
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
STEP 3. M.U.T.-III diagnosis code
Check if any diagnosis code is set to the KOS-ECU.
Q: Is the diagnosis code set?
YES : Refer to P.42B-11.
NO : Go to Step 4.
42B-37
STEP 4. Retest the system
Check that the keyless operation warning lamp turns
OFF unless the flashing or illumination conditions are
met.
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
NO : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
Inspection Procedure 5: No door will be locked or unlocked by operating a lock/unlock switch on any
door.
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communication circuit are normal.
PROBABLE CAUSES
•
•
•
•
•
•
Malfunction of the CAN bus lines
Malfunction of the central door locking system
Malfunction of the keyless operation key
Damaged wiring harness and connectors
Malfunction of the KOS-ECU
Function setting error or no setting with a customisation
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to diagnose the CAN bus lines.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus line (Refer to GROUP
54C − Troubleshooting ).
STEP 2. M.U.T.-III diagnosis code
Check if any diagnosis code is set to the KOS-ECU.
Q: Is the diagnosis code set?
YES : Refer to diagnosis code chart P.42B-11.
NO : Go to Step 3.
STEP 3. Check the central door locking system
operation
Check that the central door locking system works
normally.
Q: Is the check result normal?
YES : Go to Step 4.
NO : Perform troubleshooting for the central door
locking system (Refer to GROUP 42A −
Troubleshooting ).
STEP 4. Check the customisation
Check that "KOS feature" is set to "Both enable" with
a customisation function.
Q: Is it set to "Both enable"?
YES : Go to Step 5.
NO : Set "KOS feature" to "Both enable" with a
customisation function (Refer to P.42B-90).
STEP 5. Check with another registered keyless
operation key.
Q: Can the engine switch be turned ON? (Is the
keyless operation key recognised?)
YES : Replace the keyless operation key that
could not turn the engine switch ON (the
keyless operation key was not recognised),
and register the ID codes (refer to
P.42B-88).
NO : Go to Step 6.
STEP 6. Check of the troubles
Operate the lock/unlock switch to check that the door
can be locked and unlocked.
Q: Is the check result normal?
YES : The diagnosis is complete.
NO : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
42B-38
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
Inspection Procedure 6: Driver's door lock/unlock switch does not work.
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communication circuit are normal.
PROBABLE CAUSES
• Malfunction of the outside transmission antenna
assembly (driver's side)
• Malfunction of the lock/unlock switch (driver's
side)
• Damaged wiring harness and connectors
• Malfunction of the KOS-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III diagnosis code
Check if any diagnosis code is set to the KOS-ECU.
Q: Is the diagnosis code set?
YES : Refer to diagnosis code chart P.42B-11.
NO : Go to Step 2.
STEP 2. Lock/unlock switch (LH) check
Check that the lock/unlock switch (LH) is normal
(Refer to GROUP 42A − Inspection ).
Q: Is the check result normal?
YES : Go to Step 3.
NO : Replace the lock/unlock switch (LH).
STEP 3. Resistance measurement at lock/unlock
switch (LH) connector (earth line)
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Measure the resistance between the lock/unlock
switch (LH) connector (earth line) and body earth.
OK: Continuity exists (2 Ω or less)
Q: Is the check result normal?
YES : Go to Step 5.
NO : Go to Step 4.
STEP 4. Check of open circuit in earth line
between the lock/unlock switch (LH) connector
and the body earth.
NOTE: Before the wiring harness check, check the
intermediate connectors, and repair if necessary.
Q: Is the check result normal?
YES : Go to Step 6.
NO : Repair the wiring harness.
STEP 5. Check of short to power supply, short to
earth, and open circuit in DRRQ line between the
KOS-ECU connector and the lock/unlock switch
(LH) connector.
NOTE: Before the wiring harness check, check the
intermediate connectors, and repair if necessary.
Q: Is the check result normal?
YES : Go to Step 6.
NO : Repair the wiring harness.
STEP 6. KOS communication test
Using M.U.T-III, perform the antenna communication
test to check that the outside transmission antenna
assembly (driver's side) communicates normally
(Refer to P.42B-89).
Q: Is the check result normal?
YES : Go to Step 7.
NO : Perform troubleshooting for the diagnosis
code No. B240A (Refer to P.42B-11).
STEP 7. Check of the troubles
Operate the lock/unlock switch (LH) and check that
the doors can be locked and unlocked.
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Deal with Intermittent Malfunction ).
NO : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
Inspection Procedure 7: Front passenger's door lock/unlock switch does not work.
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communication circuit are normal.
PROBABLE CAUSES
• Malfunction of the outside transmission antenna
assembly (passenger's side)
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
• Malfunction of the lock/unlock switch (passenger's side)
• Damaged wiring harness and connectors
• Malfunction of the KOS-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III diagnosis code
Check if any diagnosis code is set to the KOS-ECU.
Q: Is the diagnosis code set?
YES : Refer to diagnosis code chart P.42B-11.
NO : Go to Step 2.
STEP 2. lock/unlock switch (RH) check
Check that the lock/unlock switch (RH) is normal
(Refer to GROUP 42A − Door Handle and Latch ).
Q: Is the check result normal?
YES : Go to Step 3.
NO : Replace the lock/unlock switch (RH).
STEP 3. Resistance measurement at lock/unlock
switch (RH) connector (earth line)
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Measure the resistance between the lock/unlock
switch (RH) connector (earth line) and body
earth.
OK: Continuity exists (2 Ω or less)
Q: Is the check result normal?
YES : Go to Step 5.
NO : Go to Step 4.
STEP 4. Check of open circuit in earth line
between the lock/unlock switch (RH) connector
and the body earth.
NOTE: Before the wiring harness check, check the
intermediate connectors, and repair if necessary.
42B-39
Q: Is the check result normal?
YES : Go to Step 6.
NO : Repair the wiring harness.
STEP 5. Check of short to power supply, short to
earth, and open circuit in ASRQ line between the
KOS-ECU connector and the lock/unlock switch
(RH) connector.
NOTE: Before the wiring harness check, check the
intermediate connectors, and repair if necessary.
Q: Is the check result normal?
YES : Go to Step 6.
NO : Repair the wiring harness.
STEP 6. KOS communication test
Using M.U.T.-III, perform the antenna communication
test to check that the outside transmission antenna
assembly (passenger's side) communicates normally
(Refer to P.42B-89).
Q: Is the check result normal?
YES : Go to Step 7.
NO : Perform troubleshooting for the diagnosis
code No. B240B (Refer to P.42B-11).
STEP 7. Check of the troubles
Operate the lock/unlock switch (RH) to check that the
doors can be locked and unlocked.
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Deal with Intermittent Malfunction ).
NO : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
Inspection Procedure 8: The lock switch and open switch of the tailgate lock release handle do not
work.
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communication circuit are normal.
PROBABLE CAUSES
• Malfunction of the outside transmission antenna
assembly (tailgate)
• Malfunction of the tailgate lock release handle
• Damaged wiring harness and connectors
• Malfunction of the KOS-ECU
42B-40
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III diagnosis code
Check if any diagnosis code is set to the KOS-ECU.
Q: Is the diagnosis code set?
YES : Refer to diagnosis code chart P.42B-11.
NO : Go to Step 2.
STEP 2. Tailgate lock release handle (lock switch
and open switch) check
Check that the tailgate lock release handle (lock
switch and open switch) is normal (Refer to GROUP
42A − Tailgate Handle and Latch <Vehicles without
electric tailgate> or <Vehicles with electric tailgate>).
Q: Is the check result normal?
YES : Go to Step 3.
NO : Replace the tailgate lock release handle.
STEP 3. Check of open circuit in earth line
between the tailgate lock release handle
connector and the body earth.
NOTE: Before the wiring harness check, check the
intermediate connector, and repair if necessary.
Q: Is the check result normal?
YES : Go to Step 4.
NO : Repair the wiring harness.
STEP 4. KOS communication test
Using M.U.T-III, perform the antenna communication
test to check that the outside transmission antenna
assembly (tailgate) communicates normally (Refer to
P.42B-89).
Q: Is the check result normal?
YES : Go to Step 5.
NO : Perform troubleshooting for the diagnosis
code No. B240C (Refer to P.42B-11).
STEP 5. Check of the troubles
Operate the tailgate lock release handle and check
that the tailgate can be locked and opened.
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Deal with Intermittent Malfunction ).
NO : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
Inspection Procedure 9: The lock switch of the tailgate lock release handle does not perform the
locking operation.
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communication circuit are normal.
PROBABLE CAUSES
• Malfunction of the outside transmission antenna
assembly (tailgate)
• Malfunction of the tailgate lock release handle
(lock switch)
• Damaged wiring harness and connectors
• Malfunction of the KOS-ECU
STEP 2. Tailgate lock release handle (lock
switch) check
Check that the tailgate lock release handle (lock
switch) is normal (Refer to GROUP 42A − Tailgate
Handle and Latch <Vehicles without electric tailgate> or <Vehicles with electric tailgate>).
Q: Is the check result normal?
YES : Go to Step 3.
NO : Replace the tailgate lock release handle.
STEP 1. M.U.T.-III diagnosis code
Check if any diagnosis code is set to the KOS-ECU.
STEP 3. Check of short to power supply, short to
earth, and open circuit in GTRQ line between the
KOS-ECU connector and the tailgate lock release
handle connector.
NOTE: Before the wiring harness check, check the
intermediate connector, and repair if necessary.
Q: Is the diagnosis code set?
YES : Refer to diagnosis code chart P.42B-11.
NO : Go to Step 2.
Q: Is the check result normal?
YES : Go to Step 4.
NO : Repair the wiring harness.
DIAGNOSIS PROCEDURE
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
STEP 4. KOS communication test
Using M.U.T-III, perform the antenna communication
test to check that the outside transmission antenna
assembly (tailgate) communicates normally (Refer to
P.42B-89).
Q: Is the check result normal?
YES : Go to Step 5.
NO : Perform troubleshooting for the diagnosis
code No. B240C (Refer to P.42B-11).
42B-41
STEP 5. Check of the troubles
Operate the tailgate lock release handle (lock switch)
to check that the tailgate can be locked.
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Deal with Intermittent Malfunction ).
NO : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
Inspection Procedure 10: The open switch of the tailgate lock release handle does not perform the
unlocking operation..
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communication circuit are normal.
PROBABLE CAUSES
• Malfunction of the outside transmission antenna
assembly (tailgate)
• Malfunction of the tailgate lock release handle
(open switch)
• Damaged wiring harness and connectors
• Malfunction of the KOS-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III diagnosis code
Check if any diagnosis code is set to the KOS-ECU.
Q: Is the diagnosis code set?
YES : Refer to diagnosis code chart P.42B-11.
NO : Go to Step 2.
STEP 2. Tailgate lock release handle (open
switch) check
Check that the tailgate lock release handle (open
switch) is normal (Refer to GROUP 42A − Tailgate
Handle and Latch <Vehicles without electric tailgate> or <Vehicles with electric tailgate>).
Q: Is the check result normal?
YES : Go to Step 3.
NO : Replace the tailgate lock release handle.
STEP 3. Check of short to power supply, short to
earth, and open circuit in GTOP line between the
KOS-ECU connector and the tailgate lock release
handle connector.
NOTE: Before the wiring harness check, check the
intermediate connector, and repair if necessary.
Q: Is the check result normal?
YES : Go to Step 4.
NO : Repair the wiring harness.
STEP 4. KOS communication test
Using M.U.T-III, perform the antenna communication
test to check that the outside transmission antenna
assembly (tailgate) communicates normally (Refer to
P.42B-89).
Q: Is the check result normal?
YES : Go to Step 5.
NO : Perform troubleshooting for the diagnosis
code No. B240C (Refer to P.42B-11).
STEP 5. Check of the troubles
Operate the tailgate lock release handle (open
switch) to check that the tailgate can be opened.
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Deal with Intermittent Malfunction ).
NO : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
42B-42
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
Inspection Procedure 11: Keyless entry function does not work.
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communication circuit are normal.
OPERATION
The lock/unlock signal of the keyless operation key is
sent to ETACS-ECU via KOS-ECU. Also, when
ETACS receives signals from the all the door
switches, ETACS-ECU judges them to activate the
keyless entry function.
YES : Refer to diagnosis code chart .
NO : Go to Step 4
STEP 4. Check the power supply system
With the ignition switch in the LOCK (OFF) position,
check if the following function operates normally:
• Hazard warning lamp
Q: Is the check result normal?
YES : Go to Step 5
NO : Refer to GROUP 54A − Abnormality in
ETACS-ECU Power Supply Circuit .
PROBABLE CAUSES
•
•
•
•
•
•
Malfunction of CAN bus line
Malfunction of the door switches
Malfunction of the keyless operation key
Damaged wiring harness and connectors
Malfunction of the KOS-ECU
Malfunction of ETACS-ECU
DIAGNOSIS PROCEDURE
STEP 1. ETACS-ECU coding data check
(1) Use M.U.T.-III to read out the option coding
information in ETACS-ECU (Refer to GROUP 00
− Precautions before Service - Coding Reference
Table ).
(2) Check if the "Keyless function" is "Enabled."
Q: Is the check result normal?
YES : Go to Step 2
NO : Operate the M.U.T.-III to set the option
coding "keyless" to "enabled," and check
the trouble symptom.
STEP 2. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to diagnose the CAN bus lines.
Q: Is the CAN bus normal?
YES : Go to Step 3
NO : Repair the CAN bus line. (Refer to GROUP
54C − Troubleshooting .)
STEP 3. M.U.T.-III diagnosis code
Check if any diagnosis code is set to the KOS-ECU.
Q: Is the diagnosis code set?
STEP 5. Check the operation of the central door
locking system.
Check that the central door locking system works
normally.
Q: Is the check result normal?
YES : Go to Step 6
NO : Refer to GROUP 42A − Troubleshooting .
STEP 6. M.U.T.-III data list
Check the ETACS-ECU service data relevant to the
operation of keyless entry function.
• Turn the power supply mode of engine switch to
OFF.
• Close the driver's door.
• Close the front passenger's doors.
• Close the RH-side rear door.
• Close the LH-side rear door.
• Close the tailgate.
Item No.
Item name
Normal
condition
Item 256
Dr door ajar switch
Close
Item 257
As door ajar switch
Close
Item 258
RR door ajar switch
Close
Item 259
RL door ajar switch
Close
Item 260
Trunk/gate trunk ajar Close
switch
OK: Normal conditions are displayed for all
the items.
Q: Are the check result normal?
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
Normal conditions are displayed for all the items. :
Go to Step 7.
Normal condition is not displayed for item No. 256.
:
Refer to GROUP 54A − Inspection
Procedure 5: "Front door switch (driver’s
side) signal is not received ."
Normal condition is not displayed for item No. 257.
:
Refer to GROUP 54A − Inspection
Procedure 6: "Front door switch
(passenger’s side) signal is not received ."
Normal condition is not displayed for item No. 258.
:
Refer to GROUP 54A − Inspection
Procedure 7: "Rear door switch (RH) signal
is not received ."
Normal condition is not displayed for item No. 259.
:
Refer to GROUP 54A − Inspection
Procedure 8: Rear door switch (LH) signal is
not received .
Normal condition is not displayed for item No. 260.
:
Refer to GROUP 54A − Inspection
Procedure 9: "Tailgate latch signal is not
received ."
42B-43
STEP 7. Check with another registered keyless
operation key.
Check that the keyless entry function can be used
with another keyless operation key.
Q: Can the keyless entry function be used?
YES : Replace the keyless operation key
concerned and register the ID codes (Refer
to P.42B-88).
NO : Go to Step 8
STEP 8. Check of the troubles
Replace ETACS-ECU. After the replacement, perform the coding, and check that the keyless entry
function operates normally.
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
NO : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
Inspection Procedure 12: KOS timer lock function does not work.
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communication circuit are normal.
OPERATION
After the door is unlocked using the keyless entry
function or the door entry function, if no operation is
performed, the door is locked when the time specified by a customisation function has elapsed. However, when an open signal of any of the doors is
received by ETACS-ECU or when the engine switch
power supply mode is ON, the KOS timer lock function will not be activated.
PROBABLE CAUSES
• Malfunction of ETACS-ECU
• Malfunction of the door switches
DIAGNOSIS PROCEDURE
STEP 1. Check the keyless entry function
operation
Check that the keyless entry function operation normally.
Q: Is the check result normal?
YES : Go to Step 2
NO : Refer to Inspection Procedure 11: "Keyless
entry function does not work P.42B-42."
STEP 2. M.U.T.-III diagnosis code
Check if any diagnosis code is set to the KOS-ECU.
Q: Is the diagnosis code set?
YES : Refer to diagnosis code chart P.42B-11.
NO : Go to Step 3.
STEP 3. Check of the troubles
Check that the KOS timer lock function operates.
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points ).
NO : Perform troubleshooting for each door
switch (Refer to GROUP 54A − ETACS −
Troubleshooting ).
42B-44
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
Inspection Procedure 13: Keyless entry hazard answerback function or the room lamp answerback
function does not work normally.
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communication circuit are normal.
OPERATION
When the keyless entry function is used, the keyless
entry hazard answerback function or room lamp
answerback function operate as set by ETACS customisation function (If the flashing count is set to 0
with a customisation function, no answerback function is performed).
PROBABLE CAUSES
• Function setting error or no setting with a customisation
• Malfunction of the turn signal lamp
• Malfunction of the room lamp
• Malfunction of ETACS-ECU
DIAGNOSIS PROCEDURE
STEP 1. Check the hazard warning lamp
Check that the hazard warning lamp illuminate normally.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Refer to GROUP 54A − Inspection
Procedure 1: "The hazard warning lamps do
not illuminate ."
STEP 2. Check the room lamps operation
Check that the room lamps illuminate normally.
Q: Is the check result normal?
YES : Go to Step 3.
NO : Refer to GROUP 54A, The front room lamp
does not illuminate normally .
STEP 3. Check the keyless entry system
operation
Check that the keyless entry system operation normally.
Q: Is the check result normal?
YES : Go to Step 4.
NO : Refer to Inspection Procedure 9: "Keyless
entry system does not work P.42B-42."
STEP 4. Check the customisation
Check that any one of the followings other than
"Lock: 0, Unlock: 0" is set for "Hazard answerback"
with a customisation function.
• Lock:1, Unlock:2
• Lock:1, Unlock:0
• Lock:0, Unlock:2
• Lock:2, Unlock:1
• Lock:0, Unlock:1
• Lock:2, Unlock:0
NOTE: If "Lock: 0" or "Unlock: 0" is selected, no
answerback function is performed on locking or
unlocking.
Q: Is it set to other than "Lock: 0, Unlock: 0"?
YES : Go to Step 5.
NO : Set "Hazard answerback" to any one other
than "Lock: 0, Unlock: 0" with a
customisation function (Refer to P.42B-90).
STEP 5. M.U.T.-III diagnosis code
Check if any diagnosis code is set to the KOS-ECU.
Q: Is the diagnosis code set?
YES : Refer to P.42B-11.
NO : Go to Step 6.
STEP 6. Check of the troubles
Check that the hazard answerback and room lamp
answerback functions of the keyless entry operate.
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction .)
NO : Replace ETACS-ECU. After the
replacement, perform the coding.
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
42B-45
Inspection Procedure 14: Multimode keyless entry function does not work at all.
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communication circuit are normal.
OPERATION
With a ETACS customisation function, using the keyless operation key, the electric-folding door mirrors
<Vehicles with electric retractable remote controlled
door mirrors> can be activated.
PROBABLE CAUSES
• Malfunction of the keyless operation key
• Function setting error or no setting with a customisation
• Malfunction of ETACS-ECU
DIAGNOSIS PROCEDURE
STEP 1. Check the keyless entry function
operation.
Check that the keyless entry system works normally.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Refer to inspection procedure 11 "keyless
entry function does not work P.42B-42."
YES : Go to Step 3.
NO : Refer to GROUP 51 − Troubleshooting .
STEP 3. Check the customisation
Use the customisation function to check that the
"Multi mode" has been set to other than "Disabled."
Vehicles with electric retractable remote controlled
door mirrors
• D/M: O and C.
Q: Is it set to other than "disabled"?
YES : Go to Step 4.
NO : Use the customisation function to set the
"Multi mode" to other than "Disabled" (Refer
to P.42B-90).
STEP 4. M.U.T.-III diagnosis code
Check if any diagnosis code is set to the KOS-ECU.
Q: Is the diagnosis code set?
YES : Refer to diagnosis code chart P.42B-11.
NO : Go to Step 5.
STEP 5. Check of the troubles
Check that the multimode keyless entry function
works normally.
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Deal with Intermittent Malfunction ).
NO : Replace ETACS-ECU. After the
replacement, perform the coding.
STEP 2. Check the operation of the
electric-folding door mirror.
Check that the electric folding door mirrors work normally.
Q: Is the check result normal?
Inspection Procedure 15: Outer buzzer does not sound.
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communication circuit are normal.
OPERATION
The outer buzzer sounds under the following conditions.
• When the door is locked or unlocked with the
keyless or keyless operation function
• Door lock does not operate.
• The keyless operation key is brought out of the
vehicle.
• Also, with a customisation function, "Buzzer
answerback" may be set to "Not Sound Buzzer."
PROBABLE CAUSES
•
•
•
•
Malfunction of the outer buzzer
Malfunction of the KOS-ECU
Malfunction of the connector
Function setting error or no setting with a customisation
42B-46
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <KOS-ECU>
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III diagnosis code
Check if any diagnosis code is set to the KOS-ECU.
Q: Is the diagnosis code set?
YES : Refer to diagnosis code chart P.42B-11.
NO : Go to Step 2.
STEP 2. Check the customisation
With a customisation function, check if "Buzzer
answerback" is set to other than "Not Sound Buzzer."
Q: Is it set to other than "Not Sound Buzzer"?
YES : Go to Step 3.
NO : With a customisation function, "Buzzer
answerback" is set to other than "Not Sound
Buzzer" (Refer to P.42B-90).
STEP 3. M.U.T.-III actuator test
Check that the outer buzzer sounds (Refer to
P.42B-33).
Q: Is the check result normal?
YES : Go to Step 5.
NO : Replace the outer buzzer. Go to Step 4.
STEP 4. Check of short to power supply, short to
earth, and open circuit in DRVB, PWRB line
between the KOS-ECU connector and the outer
buzzer connector.
NOTE: Before the wiring harness check, check the
intermediate connector, and repair if necessary.
Q: Is the check result normal?
YES : Go to Step 5.
NO : Repair the wiring harness.
STEP 5. Check of the troubles
Check that the outer buzzer sounds when the outer
buzzer sounding conditions are met.
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Deal with Intermittent Malfunction ).
NO : Replace KOS-ECU and register the ID
codes (Refer to P.42B-88).
Inspection Procedure 15: Power door locks with selective unlocking does not work.
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communication circuit are normal.
COMMENT ON TROUBLE SYMPTOM
When the keyless entry function and door entry function operate normally, but there is an error to only the
power door locks with selective unlocking,
ETACS-ECU may have a problem. In addition, it is
possible that the function has been set to "all doors
unlock" by the customisation function.
PROBABLE CAUSES
• Malfunction of ETACS-ECU
• Damaged wiring harness and connectors
DIAGNOSIS PROCEDURE
STEP 1. Check the customisation
Q: Are the power door locks with selective unlocking
enabled by the customisation function?
YES : Go to Step 2
NO : Set the power door locks with selective
unlocking to "Enabled" by using the
customisation function. Refer to P.42B-90.
STEP 2. Power door locks with selective
unlocking operation check
Check that the power door locks with selective
unlocking operate normally by means of the keyless
entry function or door entry function.
Q: Is the check result normal?
YES : Go to Step 5
NO (Does not work by means of keyless entry
function) : Go to Step 3
NO (Does not work by means of door entry
function) : Go to Step 4
NO (Does not work by means of either functions) :
Go to Step 5
KEYLESS OPERATION SYSTEM (KOS)
42B-47
TROUBLESHOOTING <KOS-ECU>
YES : Go to Step 5
NO (Only the driver's door is not unlocked.) :
STEP 3. Keyless entry system operation check
Press the unlock switch of the keyless operation key
and check that only the driver's door is unlocked.
Then, press the unlock switch once again within 2
seconds after that to check that the front passenger's
door, rear doors, and tailgate are unlocked.
Replace ETACS-ECU.
NO (The driver's door, front passenger's door, rear
doors, and tailgate are not unlocked.) : Refer to
Inspection Procedure 6: "Driver's door
lock/unlock switch does not work P.42B-38."
Q: Does the keyless entry function work normally?
YES : Go to Step 5
NO (Only the driver's door is not unlocked.) :
STEP 5. Check of the troubles
Check that the power door locks with selective
unlocking works normally.
Replace ETACS-ECU.
NO (The driver's door, front passenger's door, rear
doors, and tailgate are not unlocked.) : Refer to
Q: Is the check result normal?
YES : Intermittent malfunction (Refer to GROUP
Inspection Procedure 8: "Keyless entry
function does not work P.42B-42."
00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
NO : Replace ETACS-ECU.
STEP 4. Door entry function operation check
Press the lock/unlock switch (driver’s side) and
check that only the driver's door is unlocked. Then,
press the lock/unlock switch (driver’s side) once
again within 2 seconds after that to check that the
front passenger's door, rear doors, and tailgate are
unlocked.
Q: Does the door entry function work normally?
TERMINAL VOLTAGE REFERENCE CHART
M1429606800704
KOS-ECU TERMINAL CHECK
AC905451
Terminal Terminal Check item
number code
Check condition
Normal condition
1
ANTP
Immobilizer antenna output (+) When communicating with the
keyless operation key
(discharged battery) in the key
slot
0 to 5 V (pulse
signal)
2
CANL
CAN L
−
−
3
CANH
CAN H
−
−
4
GND
Earth
Always
1 V or less
5
PWRB
Output to buzzer (+)
Buzzer is sounding
10 to 12 V (pulse
signal)
6
−
−
−
−
7
IG1
Power supply from ignition
switch (IG1)
Ignition switch: ON
System voltage
8
PWR
Battery power supply
Always
System voltage
KEYLESS OPERATION SYSTEM (KOS)
42B-48
TROUBLESHOOTING <KOS-ECU>
Terminal Terminal Check item
number code
Check condition
Normal condition
9
ANTG
Immobilizer antenna output (-) When communicating with the
keyless operation key
(discharged battery) in the key
slot
0 to 5 V (pulse
signal)
10,
−
−
−
−
11
GTOP
Tailgate lock release handle
output
Open switch of tailgate lock
release handle: ON
1 V or less
12, 13
−
−
−
−
14
GTRQ
Tailgate lock release handle
output
Lock switch of tailgate lock
release handle: ON
1 V or less
15
ASRQ
Lock/unlock switch
(passenger’s side) output
Lock/unlock switch: ON
1 V or less
16
DRRQ
Lock/unlock switch (driver’s
side) output
Lock/unlock switch: ON
1 V or less
AC905452
Terminal Terminal Check item
number code
Check condition
Normal condition
21
Power supply
While the power supply fuse
(IOD fuse) is removed, when
the engine switch is pressed
from the engine switch power
supply mode OFF
System voltage
−
−
−
Output of electric steering lock
driving permission signal
• KOS-ECU active
• Engine stopped
System voltage
−
−
−
BKOS
22
23
PCK
24 − 27
28
EGTP
Outside transmission antenna
assembly (tailgate) power
supply
• At the door switch operation 0 to 8 V (pulse
• At the engine switch
signal)
operation
• At door open/close
29
INRP
Inside transmission antenna
assembly (rear) power supply
• At the door switch operation 0 to 8 V (pulse
signal)
• At the engine switch
operation
• At door open/close
30
EASP
Outside transmission antenna
assembly (passenger’s side)
power supply
• At the door switch operation 0 to 8 V (pulse
• At the engine switch
signal)
operation
• At door open/close
KEYLESS OPERATION SYSTEM (KOS)
42B-49
TROUBLESHOOTING <OSS-ECU>
Terminal Terminal Check item
number code
Check condition
31
INFP
Inside transmission antenna
assembly (front) power supply
• At the door switch operation 0 to 8 V (pulse
• At the engine switch
signal)
operation
• At door open/close
32
EDRP
Outside transmission antenna
assembly (driver’s side) power
supply
• At the door switch operation 0 to 8 V (pulse
• At the engine switch
signal)
operation
• At door open/close
33
DRVP
Output to buzzer (-)
Buzzer is sounding
0 to 10 V (pulse
signal)
−
−
−
34 − 39
Normal condition
40
EGTG
Outside transmission antenna
assembly (tailgate) earth
Always
1 V or less
41
INRG
Inside transmission antenna
assembly (rear) earth
Always
1 V or less
42
EASG
Outside transmission antenna
assembly (passenger’s side)
earth
Always
1 V or less
43
INFG
Inside transmission antenna
assembly (front) earth
Always
1 V or less
44
EDRG
Outside transmission antenna
assembly (driver’s side) earth
Always
1 V or less
TROUBLESHOOTING <OSS-ECU>
STANDARD FLOW OF DIAGNOSTIC
TROUBLESHOOTING
M1429604400119
Refer to GROUP 00 − Contents of troubleshooting .
DIAGNOSIS FUNCTION
M1429605400305
HOW TO READ DIAGNOSIS CODE
Refer to GROUP 00 − Diagnosis function .
HOW TO ERASE DIAGNOSIS CODE
Refer to GROUP 00 − Diagnosis function .
CHECK OF FREEZE FRAME DATA
The freeze frame data can be checked by using the
M.U.T.-III.
When detecting fault and storing the diagnosis code,
the ECU connected to CAN bus line obtains the data
before the determination of the diagnosis code and
the data when the diagnosis code is determined, and
then stores the ECU status of that time. By analysing
each data from M.U.T.-III, the troubleshooting can be
performed more efficiently. The displayed items are
as the table below.
Display item list
Item No.
Item name
Data item
Unit
1
Odometer
Total driving distance after the diagnosis code
is generated
km
2
Ignition cycle
Number of times the power supply mode is
turned "ON" or "OFF" after the past trouble
transition.
Number of counts
is displayed.
4
Current trouble
accumulative time
Cumulative time for current malfunction of
diagnosis code
min
KEYLESS OPERATION SYSTEM (KOS)
42B-50
TROUBLESHOOTING <OSS-ECU>
TROUBLESHOOTING PROCEDURE
WHEN VEHICLE POWER DOES NOT
TURN ON
M1429628300042
When the power does not turn ON, open and close
the driver's door several times. Then, check the communication between OSS-ECU and M.U.T.-III and
others as shown in the flowchart below. (OSS-ECU
can communicate with the M.U.T.-III even when the
power supply is OFF.)
Simplified troubleshooting flow chart
Is the communication with
M.U.T.-III possible?
· Battery failure
· Malfunction of the CAN-C/CAN-C-Mid bus line
· Malfunction of ETACS-ECU (power supply, earth system)
· Malfunction of OSS-ECU (power supply, earth system)
No
Yes
Is the diagnosis code
set?
No
Yes
Is it possible to turn ON the
power when the keyless operation
key is placed in the key box?
Carry out the OSS-ECU check by
diagnosis code.
(With the forcible power supply
output using the M.U.T.-III,
distinction from failure of another
systems is possible.)
No
Yes
Diagnose the KOS-ECU.
· Low battery voltage of
keyless operation key, etc.
Carry out the OSS-ECU check
by trouble symptom.
· Power does not turn on.
(not possible with both of power
supply mode ACC and ON)
AC905152 AF
FORCED POWER SUPPLY OUTPUT
PROCEDURE
M1429627400013
With OSS, the power supply cannot be turned ON
until the certification communication with KOS and
electrical steering lock is complete. However, using
the M.U.T.-III, the power can be forced ON even
when the certification communication with KOS and
electrical steering lock is not completed. (However,
locking/unlocking of the electrical steering lock is not
performed.) Through this process, the error in certification with KOS or electrical steering lock can be distinguished from the malfunction in power supply. In
addition, the process allows the CAN bus diagnosis
as well as the reading of diagnosis code, belonging
to systems other than OSS, to be performed.
NOTE: During the forced power supply output, the
FORCED POWER SUPPLY OUTPUT
PROCEDURE
1. Connect the M.U.T.-III to the diagnosis connector.
2. On the M.U.T.-III system selection screen, select
"OSS."
3. Select "Special Function" from OSS screen.
4. Select "Forced power supply output" from Special
Function screen.
5. From the forced power supply output screen,
select the status with which the control is desired.
(Selection can be made from IG-ACC, IG-ON, and
IG-ST.)
6. On the execution confirmation screen, select OK.
7. While the process is executed, the selected
control status is maintained.
indicator flashes in orange.
KEYLESS OPERATION SYSTEM (KOS)
42B-51
TROUBLESHOOTING <OSS-ECU>
8. To cancel the forced power supply output, select
"Forced power supply output (stop)" on the
Special Function screen, or operate the engine
switch.
Item
Indicator
Immobilizer error
AC904253
Steering turn
indication
WARNING AND WARNING INDICATOR
LIST <Standard meter>
M1429612300645
When OSS failed or operated improperly, OSS-ECU
warns the driver to that effect by displaying the
one-touch start system warning indicator on the combination meter.
Factor
Warning operation
• Displayed when the
certification
communication fails with
KOS, electrical steering
lock, or engine-ECU.
• Displayed when the power
supply mode is turned ON
while the keyless operation
key is judged to be brought
outside the vehicle with the
power supply mode in
ACC, or when the engine
starting operation is
performed after such a
status.
• Displayed when the
electrical steering lock
cannot be locked because
there is a P detection
switch malfunction.
• The warning indicator
illuminates.
Displayed when the steering
lock is not unlocked because
the steering force is applied.
• The warning indicator
flashes.
• Buzzer sounds.
Displayed when a malfunction
occurs to the steering lock
system.
• The warning indicator
illuminates.
• Buzzer sounds.
The door is open with the
steering lock not locked.
Buzzer sounds.
Displayed when an error
occurs to the power supply
system.
• The warning indicator
illuminates.
• Buzzer sounds.
The door is open with the
power supply mode in ON or
in ACC.
Buzzer sounds.
AC904253
Electrical steering
lock malfunction
AC809615
Steering lock not
locked
−
Power supply
system error
AC809615
Power OFF
indication
−
42B-52
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
WARNING AND WARNING INDICATOR
LIST <High contrast meter>
M1429612300656
When OSS failed or operated improperly, KOS-ECU
warns the driver to that effect by displaying the
one-touch start system warning on the multi information display in the combination meter.
Item
Display contents
Immobilizer error
IMMOBILIZER SYSTEM
SERVICE REQUIRED
AC904253
Steering turn
indication
Factor
• Displayed when the
certification communication
fails with KOS, electrical
steering lock, or
engine-ECU.
• Displayed when the power
supply mode is turned ON
while the keyless operation
key is judged to be brought
outside the vehicle with the
power supply mode in ACC,
or when the engine starting
operation is performed after
such a status.
• Displayed when the
electrical steering lock
cannot be locked because
there is a P detection switch
malfunction.
PUSH ENGINE SWITCH Displayed when the steering
WHILE TURNING
lock is not unlocked because
STEERING WHEEL
the steering force is applied.
AC904254
Electrical steering
lock malfunction
STEERING LOCK
SERVICE REQUIRED
Displayed when a malfunction
occurs to the steering lock
system.
SHIFT TO P POSITION
Displayed if the shift lever is in
other than "P" range when the
engine is not running.
STEERING WHEEL
UNLOCKED
Displayed when the door is
open with the steering lock not
locked.
AC904255
Shift P indication
AC904256
Steering lock not
locked
AC904257
KEYLESS OPERATION SYSTEM (KOS)
42B-53
TROUBLESHOOTING <OSS-ECU>
Item
Display contents
Factor
Power supply
system error
ELECTRICAL SYSTEM
SERVICE REQUIRED
Displayed when an error occurs
to the power supply system.
PRESS BRAKE PEDAL
TO START ENGINE
Displayed when the shift lever
is in other than "P" range or "N"
range at the engine start, or
when the engine switch is
pressed without the brake
pedal depressed.
−
Displayed when the door is
open with the power supply
mode in ON or in ACC.
AC904260
Engine starting
method
AC904258
Power OFF
indication
AC904252
DIAGNOSIS CODE CHART <OSS>
M1429600200964
Abnorma Diagnosis code Diagnostic item
lity
No.
detecting
ECU
Reference
page
OSS-ECU B1130
Ignition power supply
P.42B-54
B1131
Starter setting circuit fail
P.42B-57
B1132
Starter circuit fail
P.42B-58
B1133
IG1 setting circuit fail
P.42B-59
B1134
ECU power supply
P.42B-60
B1135
Engine switch
P.42B-61
B1136
Stop lamp switch
P.42B-62
B1137
P range detect SW
P.42B-63
B1139
KOS authentification timeout
P.42B-64
B1140
KOS authentification error
P.42B-65
B1141
ESL authentification timeout
P.42B-65
B1142
ESL authentification error
P.42B-66
B1143
ESL status fail
P.42B-66
B1144
ESL actuation not completed
P.42B-67
B1145
ESL drive circuit fail
P.42B-68
B1146
ESL internal circuit fail
P.42B-68
B1147
LIN communication stop control
P.42B-69
B1148
ESL power supply
P.42B-70
B1149
ESL drive circuit fail
P.42B-70
KEYLESS OPERATION SYSTEM (KOS)
42B-54
TROUBLESHOOTING <OSS-ECU>
Abnorma Diagnosis code Diagnostic item
lity
No.
detecting
ECU
Reference
page
Electrical
steering
lock unit
B1150
OSS authentification T/O.(ESL)
P.42B-71
B1151
OSS authentification error(ESL)
P.42B-66
B1152
ESL drive circuit fail(ESL)
P.42B-68
B1153
ESL internal circuit fail(ESL)
P.42B-68
B1154
ESL power supply fail(ESL)
P.42B-70
B1155
EEPROM fail(ESL)
P.42B-71
EEPROM fail
P.42B-72
OSS-ECU B1157
B1158
ECU internal fail
B1159
Chassis No. not programmed
B1160
Key code not programmed
B1161
Chassis No. mismatch
P.42B-73
B1163
Coding data mismatch
P.42B-73
B1164
Chassis No. not programmed(ESL)
P.42B-72
B1165
Key code not programmed(ESL)
B1166
Special mode
P.42B-74
B1731
ENG ECU authentification timeout
P.42B-74
B1A28
ENG ECU authentification error
P.42B-75
U0141
ETACS CAN timeout
P.42B-75
U0155
Meter CAN timeout
P.42B-75
U0164
A/C CAN timeout
P.42B-76
U0168
KOS CAN timeout
P.42B-76
U1190
No receive fault detect signal
P.42B-77
U1195
Coding not completed
P.42B-77
P.42B-72
DIAGNOSIS CODE PROCEDURES
Code No.B1130 Ignition power supply
CAUTION
• If the diagnosis code No. B1130 is set, always
diagnose the CAN bus lines.
• Before replacing ECU, ensure that the communication circuit is normal.
DIAGNOSTIC FUNCTION
If the output power supply status is different from the
engine switch status information received from
ETACS-ECU via CAN, OSS-ECU sets the diagnosis
code No.B1130. At the same time, OSS-ECU dis-
plays the power supply system error warning screen
to the multi information display of the combination
meter, and flashes the indicator of engine switch in
orange.
JUDGEMENT CRITERIA
Check Conditions
• The terminal voltage of +B1 and +B2 is between
10 and 16 V.
KEYLESS OPERATION SYSTEM (KOS)
42B-55
TROUBLESHOOTING <OSS-ECU>
Judgment Criterion
• Any of the following conditions is met, and 2 seconds or more have elapsed.
a. The engine switch status information received
from ETACS-ECU is other than OFF when the
power supply mode of OSS is OFF.
b. The engine switch status information received
from ETACS-ECU is other than ACC when
the power supply mode of OSS is ACC.
c. The engine switch status information received
from ETACS-ECU is other than ON when the
power supply mode of OSS is ON.
d. The engine switch status information received
from ETACS-ECU is other than START when
the power supply mode of OSS is START.
PROBABLE CAUSES
• Malfunction of the CAN bus line
• Damaged wiring harness or connector (short to
earth, short to power supply, or open circuit in
ACC line, IG1 line, or STO line)
• Malfunction of OSS-ECU
• ETACS-ECU malfunction
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics
After performing the forced power supply output
(refer to P.42B-50) "IG-ON" using the M.U.T.-III,
diagnose the CAN bus line.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus line (Refer to GROUP
54C − Troubleshooting ).
STEP 2. M.U.T.-III diagnosis code
Check if OSS-ECU diagnosis code No.B1131 or
B1133 is set.
Q: Is the diagnosis code set?
YES : Troubleshoot for the relevant diagnosis
code. Refer to P.42B-53.
NO : Go to Step 3.
STEP 3. M.U.T.-III other system data list
Operate the engine switch to change the power supply mode, and check that the data list display of
ETACS-ECU is changed.
WHEN POWER SUPPLY MODE IS ACC (ENGINE
SWITCH INDICATOR IS ILLUMINATED IN
ORANGE)
ETACS-ECU data list
Item No.
Check item
Display
288
ACC switch
ON
WHEN POWER SUPPLY MODE IS ON (ENGINE
SWITCH INDICATOR IS ILLUMINATED IN GREEN)
ETACS-ECU data list
Item No.
Check item
Display
254
IG voltage
System
voltage
WHEN POWER SUPPLY MODE IS START (DURING CRANKING)
ETACS-ECU data list
Item No.
Check item
Display
287
Starter switch
ON
Q: Is the check result normal?
All items agree with each other : Intermittent
malfunction is suspected (Refer to GROUP
00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
Do not match when power supply mode is ACC :
Go to Step 4.
Do not match when power supply mode is ON : Go
to Step 5.
Do not match when power supply mode is START
(during cranking) : Go to Step 6.
STEP 4. Check of short to power supply, short to
earth and open circuit in ACC line between
OSS-ECU connector and ETACS-ECU connector
NOTE: Before the wiring harness check, check the
joint connector, and repair if necessary.
Q: Is the check result normal?
YES : Go to Step 7.
NO : Repair the connector(s) or wiring harness.
STEP 5. Check of short to power supply, short to
earth and open circuit in IG1 line between
OSS-ECU connector and ETACS-ECU connector
NOTE: Before the wiring harness check, check the
joint connector, and repair if necessary.
KEYLESS OPERATION SYSTEM (KOS)
42B-56
TROUBLESHOOTING <OSS-ECU>
Q: Is the check result normal?
YES : Go to Step 7.
NO : Repair the connector(s) or wiring harness.
STEP 6. Check of short to power supply, short to
earth and open circuit in STO line between
OSS-ECU connector and ETACS-ECU connector
Q: Is the check result normal?
YES : Go to Step 7.
NO : Repair the connector(s) or wiring harness.
STEP 7. M.U.T.-III data list
Check the OSS-ECU data list. (Check only where a
problem is present.)
• Using the M.U.T.-III, perform the forced power
supply output.
State of
forced
power
supply
output
Item No.
IG-ON
15
IG-ST
13
Check item
Displ
ay
STEP 8. M.U.T.-III other system data list
Operate the engine switch to change the power supply mode, and check that the data list display of
ETACS-ECU is changed. (Check only where a problem is present.)
WHEN POWER SUPPLY MODE IS ACC (ENGINE
SWITCH INDICATOR IS ILLUMINATED IN
ORANGE)
ETACS-ECU data list
Item No.
Check item
Display
288
ACC switch
ON
WHEN POWER SUPPLY MODE IS ON (ENGINE
SWITCH INDICATOR IS ILLUMINATED IN GREEN)
ETACS-ECU data list
Item No.
Check item
Display
254
IG voltage
System
voltage
IG1 output
(monitor)
ON
WHEN POWER SUPPLY MODE IS START (DURING CRANKING)
ETACS-ECU data list
OFF
Item No.
Check item
Display
Cranking signal
output(monitor)
ON
287
Starter switch
ON
OFF
OK: Depending on the state of forced power
supply output, the display is turned ON/OFF.
Q: Is the check result normal?
YES : Go to Step 8.
NO : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
Q: Is the check result normal?
The power supply mode and data list change agree
with each other : Go to Step 9.
The power supply mode and data list change do
not agree with each other : Replace the
ETACS-ECU.
STEP 9. Check whether the diagnosis code is
reset.
Q: Is the diagnosis code set?
YES : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
KEYLESS OPERATION SYSTEM (KOS)
42B-57
TROUBLESHOOTING <OSS-ECU>
Code No.B1131 Starter setting circuit fail
CAUTION
• Use caution that the cooling fan becomes
activated when the forced power supply output of M.U.T.-III is performed while the
engine-ECU connector is disconnected.
(Fail-safe for ETACS-ECU)
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSTIC FUNCTION
When a short circuit (short to power supply, short to
earth) of starter setting circuit system is detected,
OSS-ECU sets the diagnosis code No.B1131. At the
same time, OSS-ECU displays the power supply
system error warning screen to the multi information
display of the combination meter, and flashes the
indicator of engine switch in orange.
JUDGEMENT CRITERIA
Check Conditions
• After OSS-ECU activation
Judgment Criterion
• When the following conditions are met:
a. When the starter setting signal is ON, the
starter setting circuit voltage is less than 1.5
V.
b. When the starter setting signal is OFF, the circuit voltage is 3.5 V or more.
PROBABLE CAUSES
• Damaged wiring harness or connector (short to
earth or short to power supply in ST line, STO
line or STOE line)
• Malfunction of OSS-ECU
• ETACS-ECU malfunction
• Malfunction of engine-ECU
DIAGNOSIS PROCEDURE
STEP 1. Check of short to power supply, short to
earth, and open circuit in ST, STO line between
OSS-ECU connector and ETACS-ECU connector
NOTE: Before the wiring harness check, check the
joint connector, and repair if necessary.
Q: Is the check result normal?
YES : Go to Step 2
NO : Repair the connector(s) or wiring harness.
STEP 2. Check of short to power supply, short to
earth, and open circuit in STOE line between
ETACS-ECU connector and engine-ECU
connector
Q: Is the check result normal?
YES : Go to Step 3
NO : Repair the connector(s) or wiring harness.
STEP 3. Voltage measurement at engine-ECU
connector (STOE terminal)
(1) Disconnect the engine-ECU connector, and
measure at the wiring harness side.
(2) Using the M.U.T.-III, set the forced power supply
output to other than "IG-ST".(Refer to P.42B-50.)
(3) Measure the voltage between the engine-ECU
connector (STOE terminal) and body earth.
OK: 1 V or less
(4) Using the M.U.T.-III, set the forced power supply
output to "IG-ST".(Refer to P.42B-50.)
(5) Measure the voltage between the engine-ECU
connector (STOE terminal) and body earth.
OK: System voltage
Q: Is the check result normal?
YES : Go to Step 4
NO : Go to Step 5
STEP 4. M.U.T.-III data list
Check the OSS-ECU data list.
(1) Disconnect the engine-ECU connector.
(2) Using the M.U.T.-III, perform the forced power
supply output.
State of
forced
power
supply
output
Item No.
Check item
Displ
ay
IG-ST
13
Cranking signal
output(monitor)
ON
Other than
IG-ST
OFF
OK: Depending on the state of forced
power supply output, the display is
turned ON/OFF.
Q: Is the check result normal?
42B-58
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
YES : Replace the engine-ECU and register the
chassis number and key codes [Refer to
GROUP 00 − How to Perform Chassis
Number (Chassis No.) Writing ].
NO : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
STEP 5. Voltage measurement at ETACS-ECU
connector (STOE terminal)
(1) Measure the ETACS-ECU connector side by
backprobing.
(2) Using the M.U.T.-III, set the forced power supply
output to other than "IG-ST".(Refer to P.42B-50.)
(3) Measure the voltage between the ETACS-ECU
connector (STOE terminal) and body earth.
OK: 1 V or less
(4) Using the M.U.T.-III, set the forced power supply
output to "IG-ST".(Refer to P.42B-50.)
(5) Measure the voltage between the ETACS-ECU
connector (STOE terminal) and body earth.
OK: System voltage
Q: Is the check result normal?
YES : Go to Step 6
NO : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93). Then
go to Step 6
STEP 6. Check whether the diagnosis code is
reset.
Q: Is the diagnosis code set?
YES : Replace the ETACS-ECU.
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
Code No.B1132 Starter circuit fail
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
• Malfunction of OSS-ECU
DIAGNOSIS PROCEDURE
DIAGNOSTIC FUNCTION
When a short circuit (short to power supply) of starter
setting circuit system is detected, or when an error to
the starter starting circuit system is judged,
OSS-ECU sets the diagnosis code No.B1132. At the
same time, OSS-ECU displays the power supply
system error warning screen to the multi information
display of the combination meter.
JUDGEMENT CRITERIA
Check Conditions
• After OSS-ECU activation
Judgment Criterion
• When the following conditions are met:
a. When the starter setting signal is OFF, the
cranking signal is received from engine-ECU.
b. When the starter setting signal is OFF, the
ignition start signal is received from
ETACS-ECU.
PROBABLE CAUSES
• Damaged wiring harness or connector (short to
power supply in ST line, STO line or STOE line)
• Engine starting circuit system error (NTSW line)
• Malfunction of engine-ECU
• ETACS-ECU malfunction
STEP 1. M.U.T.-III other system data list
Check the engine-ECU data list.
• Item No. 79: Cranking signal (Refer to GROUP
13A − Troubleshooting, Service Data Reference
Table .)
Q: Is the check result normal?
YES : Go to Step 2
NO : Carry out the troubleshooting for the
diagnosis code No.B1131. Refer to .
STEP 2. Check of short to power supply, short to
earth, and open circuit in NTSW line between
starter relay connector and engine-ECU
connector
Q: Is the check result normal?
YES : Go to Step 3
NO : Repair the connector(s) or wiring harness.
STEP 3. M.U.T.-III other system data list
Check the ABS-ECU data list or ASC-ECU data list.
• Item No. 87: Ignition switch (input value) (Refer to
GROUP 35B − Troubleshooting <ABS> or
GROUP 35C − Troubleshooting <ASC>.)
Q: Is the check result normal?
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
YES : Go to Step 4
NO : Replace the ETACS-ECU.
STEP 4. Check whether the diagnosis code is
reset.
Q: Is the diagnosis code set?
42B-59
YES (Set after 10 seconds or more have elapsed
since the engine switch ON) : Replace the
engine-ECU and register the chassis
number and key codes [Refer to GROUP 00
− How to Perform Chassis Number (Chassis
No.) Writing ].
YES (Set within 10 seconds since the engine
switch ON) : Replace the OSS-ECU and register
the chassis number (Refer to P.42B-93).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
Code No.B1133 IG1 setting circuit fail
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
DIAGNOSTIC FUNCTION
When a short circuit (short to power supply, short to
earth) of IG1 setting circuit system is detected,
OSS-ECU sets the diagnosis code No.B1133. At the
same time, OSS-ECU displays the power supply
system error warning screen to the multi information
display of the combination meter, and flashes the
indicator of engine switch in orange.
JUDGEMENT CRITERIA
Check Conditions
• After OSS-ECU activation
Judgment Criterion
• When the following conditions are met:
a. When the IG1 signal is ON, the IG1 circuit
voltage is less than 1.5 V.
b. When the IG1 signal is OFF, the IG1 circuit
voltage is 3.5 V or more.
PROBABLE CAUSES
• Damaged wiring harness or connector (short to
earth or short to power supply in IG1 line)
• Malfunction of OSS-ECU
• ETACS-ECU malfunction
DIAGNOSIS PROCEDURE
STEP 1. Check of short to power supply, short to
earth, and open circuit in IG1 line between
OSS-ECU connector and ETACS-ECU connector
NOTE: Before the wiring harness check, check the
joint connector, and repair if necessary.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the connector(s) or wiring harness.
STEP 2. Voltage measurement at ETACS-ECU
connector (IG1 terminal)
(1) Measure the ETACS-ECU connector side by
backprobing.
(2) Using the M.U.T.-III, set the forced power supply
output to other than "IG-ON".(Refer to P.42B-50.)
(3) Measure the voltage between the ETACS-ECU
connector (IG1 terminal) and body earth.
OK: 1 V or less
(4) Using the M.U.T.-III, set the forced power supply
output to "IG-ON".(Refer to P.42B-50.)
(5) Measure the voltage between the ETACS-ECU
connector (IG1 terminal) and body earth.
OK: System voltage
Q: Is the check result normal?
YES : Go to Step 3.
NO : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
KEYLESS OPERATION SYSTEM (KOS)
42B-60
TROUBLESHOOTING <OSS-ECU>
YES : Go to Step 4.
NO : Replace the OSS-ECU and register the
STEP 3. M.U.T.-III data list
Check the OSS-ECU data list.
Power
supply
mode
Item No.
ON
15
Other than
ON
Check item
IG1 output
(monitor)
chassis number (Refer to P.42B-93).
Displ
ay
ON
OFF
STEP 4. Check whether the diagnosis code is
reset.
Q: Is the diagnosis code set?
YES : Replace the ETACS-ECU.
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction )
OK: Depending on the state of power supply
mode, the display is turned ON/OFF.
Q: Is the check result normal?
Code No.B1134 ECU power supply
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
DIAGNOSTIC FUNCTION
When an open circuit is detected in one of the two
systems of OSS power supply, OSS-ECU sets the
diagnosis code No.B1134. At the same time,
OSS-ECU displays the power supply system error
warning screen to the multi information display of the
combination meter, and flashes the indicator of
engine switch in orange.
JUDGEMENT CRITERIA
Check Conditions
• After OSS-ECU activation
Judgment Criterion
• When the following conditions are met, and 1
second or more has elapsed.
a. +B1 is detected to be ON and +B2 is detected
to be OFF.
b. When +B1 is OFF and +B2 is ON, OSS-ECU
detects that the IOD fuse is mounted.
PROBABLE CAUSES
• Damaged wiring harness or connector (open circuit in +B line)
• Malfunction of OSS-ECU
• ETACS-ECU malfunction
NOTE: If the IGN fuse (10 A) is blown, there may be
a short to earth between the fuse and OSS-ECU or
between the fuse and electric steering lock power
supply. However, because the IGN fuse is branched
off, determine the root cause while referring to the
Electrical Wiring Manual.
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III data list
Check the OSS-ECU data list.
Item No.
Check item
Normal
condition
18
+B1 Power supply
voltage (AD)
System
voltage
19
+B2 Power supply
voltage (AD)
System
voltage
OK: Normal values are displayed for all the
items
Q: Is the check result normal?
Normal conditions are displayed for all the items. :
Go to Step 4.
Normal condition is not displayed for item No.18 :
Go to Step 2.
Normal condition is not displayed for item No.19 :
Go to Step 3.
STEP 2. Check of short to power supply, short to
earth, and open circuit in +B1 line between
OSS-ECU connector and fusible link
NOTE: Before the wiring harness check, check the
joint connector, ETACS-ECU connector, and repair if
necessary.
Q: Is the check result normal?
YES : Go to Step 4.
NO : Repair the connector(s) or wiring harness.
KEYLESS OPERATION SYSTEM (KOS)
42B-61
TROUBLESHOOTING <OSS-ECU>
STEP 3. Check of short to power supply, short to
earth, and open circuit in +B2 line between
OSS-ECU connector and fusible link
NOTE: Before the wiring harness check, check the
joint connector, ETACS-ECU connector, and repair if
necessary.
Q: Is the check result normal?
YES : Go to Step 4.
NO : Repair the connector(s) or wiring harness.
STEP 4. Check whether the diagnosis code is
reset.
Q: Is the diagnosis code set?
YES : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
Code No.B1135 Engine switch
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
STEP 2. M.U.T.-III data list
Check the OSS-ECU data list.
• Operate the engine switch.
DIAGNOSTIC FUNCTION
Operation Item No.
state
Check item
Displ
ay
When the
engine
switch is
pressed
1
Engine switch(1)
ON
2
Engine switch(2)
ON
When the
engine
switch is
not
pressed
1
Engine switch(1)
OFF
2
Engine switch(2)
OFF
When an abnormality is detected for 3 seconds or
more with either of the SW1 or SW2 of engine
switch, OSS-ECU sets the diagnosis code
No.B1135, and displays the power supply system
error warning screen to the multi information display
of the combination meter.
JUDGEMENT CRITERIA
Check Conditions
• After OSS-ECU activation
Judgment Criterion
• 3 seconds or more have elapsed since the
unmatch between the SW1 and SW2 of engine
switch is detected
PROBABLE CAUSES
• Engine switch malfunction (ON/OFF seizure of
SW1 or SW2)
• Damaged wiring harness or connector (short to
power supply, short to earth, or open circuit in
SW1 or SW2 line)
• Malfunction of OSS-ECU
DIAGNOSIS PROCEDURE
STEP 1. Engine switch check
Refer to P.42B-101.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Replace the engine switch.
OK: Operation state and data list display
agree with each other.
Q: Is the check result normal?
Normal conditions are displayed for all the items. :
Go to Step 5.
Normal condition is not displayed for item No.1 :
Go to Step 3.
Normal condition is not displayed for item No. 2. :
Go to Step 4.
STEP 3. Check of short to power supply, short to
earth, and open circuit in SW1 line between
OSS-ECU connector and engine switch
connector
Q: Is the check result normal?
YES : Go to Step 5.
NO : Repair the connector(s) or wiring harness.
42B-62
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
STEP 4. Check of short to power supply, short to
earth, and open circuit in SW2 line between
OSS-ECU connector and engine switch
connector
NOTE: Because the conformity cannot be determined even when the digital tester is used to measure the voltage of SW2 line between the OSS-ECU
connector and engine switch connector, be sure to
use the oscilloscope. (Outputs the sawtooth waveform of 0 to 5 V with intervals of 10 ms.)
Q: Is the check result normal?
YES : Go to Step 5.
NO : Repair the connector(s) or wiring harness.
STEP 5. Check whether the diagnosis code is
reset.
Q: Is the diagnosis code set?
YES : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
Code No.B1136 Stop lamp switch
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
DIAGNOSTIC FUNCTION
When an open circuit or short to earth is detected in
the stop lamp switch circuit system, or when the
actual stop lamp switch status is different from the
stop lamp switch status received from the
ETACS-ECU via CAN, the OSS-ECU sets diagnosis
code No.B1136, and displays the power supply system error warning on the multi information display of
the combination meter.
JUDGEMENT CRITERIA
Check Conditions
• After OSS-ECU activation
Judgment Criterion
• When the following conditions are met:
The time when the OSS-ECU obtained the stop lamp
switch status deviates 1.5 seconds from the time
when the ETACS-ECU obtained it.
PROBABLE CAUSES
• Malfunction of CAN bus line
• Damaged wiring harness or connector (STP line,
STP1 line)
• ETACS-ECU malfunction
• Malfunction of OSS-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to diagnose the CAN bus lines.
Q: Is the check result normal?
YES : Go to Step 2
NO : Repair the CAN bus line (Refer to GROUP
54C − Troubleshooting ). On completion, go
to Step 2.
STEP 2. Check of short to power supply, short of
earth and open circuit in STP1 line between stop
lamp switch connector and OSS-ECU connector
NOTE: Before the wiring harness check, check the
intermediate connector, and repair if necessary.
Q: Is the check result normal?
YES : Go to Step 3
NO : Repair the connector(s) or wiring harness.
STEP 3. Check of short to power supply, short of
earth and open circuit in STP line between stop
lamp switch connector and ETACS-ECU
connector
Q: Is the check result normal?
YES : Go to Step 4
NO : Repair the connector(s) or wiring harness.
STEP 4. M.U.T.-III other system data list
Check the ETACS-ECU data list.
• Item No.290: Stop lamp switch (Refer to GROUP
54A − ETACS, Service Data Reference Table .)
Q: Is the check result normal?
YES : Go to Step 5
NO : Diagnose the ETACS-ECU. (Refer to
GROUP 54A − ETACS, Trouble Symptom
Chart for Input Signal .)
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
YES : Go to Step 6
NO : Replace the OSS-ECU and register the
STEP 5. M.U.T.-III data list
Check the OSS-ECU data list.
• Operate the brake pedal.
chassis number (Refer to P.42B-93).
Operation Item No.
state
Check item
Displ
ay
Brake
3
pedal is
depressed
Stop lamp switch
ON
Brake
pedal
released
42B-63
OFF
OK: Operation state and data list display
agree with each other.
STEP 6. Check whether the diagnosis code is
reset.
Q: Is the diagnosis code set?
YES : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
Q: Is the check result normal?
Code No.B1137 P range detect SW
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
DIAGNOSTIC FUNCTION
If an error is detected in the P range detection switch
circuit system when the vehicle speed is 10 km/h or
more, OSS-ECU sets the diagnosis code No.B1137,
and displays the immobiliser certification system
inspection warning screen to the multi information
display of the combination meter.
JUDGEMENT CRITERIA
Check Conditions
• Power supply mode: ON
Judgment Criterion
• When the vehicle speed is 10 km/h or more, 1
second or more has elapsed since the P range
detection switch is detected to be OFF (selector
lever is in P position).
• When the P range detection switch is OFF, the
signal other than selector lever P position is
received for 2 seconds or more.
PROBABLE CAUSES
• Damaged wiring harness or connector (short to
power supply or open circuit in PDSW line)
• Selector lever assembly malfunction (OFF seizure of P range detection switch)
• Malfunction of the ABS-ECU or the ASC-ECU
• Malfunction of the CVT-ECU
• Malfunction of OSS-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III other system diagnosis code
Check the diagnosis code of ABS-ECU or ASC-ECU
and CVT-ECU.
Q: Is the diagnosis code set?
YES <Set in ABS-ECU or ASC-ECU> :
Troubleshoot the ABS-ECU or ASC-ECU.
(Refer to GROUP 35B − Troubleshooting
<ABS> or GROUP 35C − Troubleshooting
<ASC>.)
YES <Set in CVT-ECU> : Troubleshoot the
CVT-ECU. (Refer to GROUP 23A −
Troubleshooting .)
NO : Go to Step 2
STEP 2. Check of short to power supply, short to
earth and open circuit in PDSW line between
selector lever assembly connector and OSS-ECU
connector
NOTE: Because the conformity cannot be determined even when the digital tester is used to measure the voltage of PDSW line between the selector
lever assembly connector and OSS-ECU connector,
be sure to use the oscilloscope. (Outputs the saw
tooth waveform of 0 to 5 V with intervals of 10 ms.)
Q: Is the check result normal?
YES : Go to Step 3
NO : Repair the connector(s) or wiring harness.
KEYLESS OPERATION SYSTEM (KOS)
42B-64
TROUBLESHOOTING <OSS-ECU>
STEP 3. Check of selector lever assembly (P
range detection switch)
Disconnect the selector lever assembly connector,
and check the continuity at the equipment side.
Item No.
4−6
Check item
Selector lever: P
position
Normal
value
No continuity
Selector lever: Other Continuity
than P position
exists (2 Ω or
less)
Q: Is the check result normal?
YES : Go to Step 4
NO : Replace the selector lever assembly.
STEP 4. M.U.T.-III other system data list
Check the OSS-ECU data list.
• Operate the selector lever.
Operation Item No.
state
Check item
Selector
lever: P
position
P range detect SW Park
positi
on
8
Selector
lever:
Other than
P position
Displ
ay
Other
than
Park
positi
on
OK: Operation state and data list display
agree with each other.
Q: Is the check result normal?
YES : Go to Step 5
NO : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
STEP 5. Check whether the diagnosis code is
reset.
Q: Is the diagnosis code set?
YES : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
Code No.B1139 KOS authentification timeout
DIAGNOSTIC FUNCTION
If the necessary data cannot be received from
KOS-ECU via CAN during the certification communication with KOS-ECU, OSS-ECU sets the diagnosis
code No.B1139, and displays the immobilizer certification system inspection warning screen to the multi
information display of the combination meter.
JUDGEMENT CRITERIA
Check Conditions
• At KOS-ECU certification
Judgment Criterion
• During the certification communication with
KOS-ECU, the necessary data cannot be
received from KOS-ECU via CAN.
PROBABLE CAUSES
• Malfunction of the CAN bus line
• Malfunction of KOS-ECU
• Malfunction of OSS-ECU
DIAGNOSIS PROCEDURE
1. M.U.T.-III CAN bus diagnosis (after turning the
forced power supply output to "IG-ON" using the
M.U.T.-III)
2. KOS diagnosis code check (after turning the
forced power supply output to "IG-ON" using the
M.U.T.-III)
3. OSS-ECU diagnosis code recheck
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
42B-65
Code No.B1140 KOS authentification error
DIAGNOSTIC FUNCTION
If any abnormal data is received from KOS-ECU as a
result of the certification communication with
KOS-ECU, OSS-ECU sets the diagnosis code
No.B1140, and displays the immobilizer certification
system inspection warning screen to the multi information display of the combination meter.
PROBABLE CAUSES
• KOS-ECU malfunction (KOS-ECU has been
interchanged between two vehicles, or various
registrations are not complete after KOS-ECU
replacement)
• Malfunction of the CAN bus line
• Malfunction of OSS-ECU
JUDGEMENT CRITERIA
DIAGNOSIS PROCEDURE
Check Conditions
• At KOS-ECU certification (at transition of power
supply mode from OFF to ACC)
1. M.U.T.-III CAN bus diagnosis (after turning the
forced power supply output to "IG-ON" using the
M.U.T.-III)
2. KOS-ECU diagnosis code check (after turning the
forced power supply output to "IG-ON" using the
M.U.T.-III)
3. OSS-ECU diagnosis code recheck
Judgment Criterion
• As a result of the certification communication with
KOS-ECU, OSS-ECU receives the abnormal
data from KOS-ECU.
Code No. B1141 ESL authentification timeout
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
DIAGNOSTIC FUNCTION
If the necessary data cannot be received from the
electric steering lock via LIN during the certification
communication with electric steering lock, OSS-ECU
sets the diagnosis code No.B1141, and displays the
immobilizer certification system inspection warning
screen to the multi information display of the combination meter.
DIAGNOSIS PROCEDURE
STEP 1. Check of open circuit in PWR line
between electric steering lock connector and
fusible link
NOTE: Before the wiring harness check, check the
joint connector, ETACS-ECU connector, and repair if
necessary.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the connector(s) or wiring harness.
JUDGEMENT CRITERIA
Check Conditions
• At electric steering lock certification
Judgment Criterion
• During the certification communication with electric steering lock, the necessary data cannot be
received from the electric steering lock via LIN.
PROBABLE CAUSES
• LIN bus line malfunction (open circuit, short to
earth, or short to power supply in LIN line)
• Damaged wiring harness or connector (open circuit or short to earth in PCO line, or open circuit
in PWR line)
• Electric steering lock malfunction
• Malfunction of OSS-ECU
STEP 2. Check of short to power supply, short of
earth, and open circuit in PCO line between
electric steering lock connector and OSS-ECU
connector
NOTE: Because the conformity cannot be determined even when the digital tester is used to measure the voltage of PCO line between the selector
lever assembly connector and OSS-ECU connector,
be sure to use the analogue tester. (With the keyless
operation key placed outside of the vehicle, if the
tester needle swings to the battery voltage when the
engine switch is operated, it is judged normal.)
Q: Is the check result normal?
YES : Go to Step 3.
NO : Repair the connector(s) or wiring harness.
42B-66
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
STEP 3. Check of short to power supply, short of
earth, and open circuit in LIN line between
electric steering lock connector and OSS-ECU
connector
Q: Is the check result normal?
YES : Go to Step 4.
NO : Repair the connector(s) or wiring harness.
STEP 4. After performing the locking and
unlocking operations of the electric steering
lock, recheck the diagnosis code.
Q: Is the diagnosis code set?
YES : Replace the electric steering lock and
register the chassis number (Refer to
P.42B-93). Then go to Step 5.
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
STEP 5. Check whether the diagnosis code is
reset.
Q: Is the diagnosis code set?
YES : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
NO : The diagnosis is complete.
Code No. B1142 ESL authentification error
Code No. B1151 OSS authentification timeout(ESL)
DIAGNOSTIC FUNCTION
If the electric steering lock receives any abnormal
data from OSS-ECU as a result of the certification
communication with electric steering lock, OSS-ECU
sets the diagnosis codes No.B1142 and No.B1151.
At the same time, OSS-ECU displays the immobilizer
certification system inspection warning screen to the
multi information display of the combination meter.
JUDGEMENT CRITERIA
Check Conditions
• At electric steering lock certification
Judgment Criterion
• As a result of the certification communication with
electric steering lock, the electric steering lock
receives the abnormal data from OSS-ECU.
PROBABLE CAUSES
• Electric steering lock malfunction (electric steering lock has been interchanged between two
vehicles)
• OSS-ECU malfunction (OSS-ECU has been
interchanged between two vehicles)
DIAGNOSIS PROCEDURE
STEP 1. After turning the forced power supply
output to "IG-ON" using the M.U.T.-III, check if the
diagnosis code No.B1161 is set.
Q: Is the diagnosis code set?
YES : Carry out the troubleshooting for the
diagnosis code No.B1161. Refer to
P.42B-73.
NO : Go to Step 2.
STEP 2. After performing the locking and
unlocking operations of the electric steering
lock, recheck the diagnosis code.
Q: Is the diagnosis code set?
YES : Replace the electric steering lock and
register the chassis number (Refer to
P.42B-93).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
Code No. B1143 ESL status fail
DIAGNOSTIC FUNCTION
If a status error is received from the electric steering
lock via LIN, OSS-ECU sets the diagnosis code
No.B1143, and displays the immobiliser certification
system inspection warning screen to the multi infor-
mation display of the combination meter.
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
NOTE: In addition, when the electric steering lock
was replaced, the diagnosis code No.B1143 may be
set with the electric steering lock locked (a new electric steering lock is in the unlocked status). Therefore, before the diagnosis code recheck of after the
replacement of electric steering lock, be sure to perform the locking control of the electric steering lock
first.
JUDGEMENT CRITERIA
Check Conditions
• After OSS-ECU activation
Judgment Criterion
• Status abnormality is received from the electric
steering lock via LIN.
PROBABLE CAUSES
• Electric steering lock malfunction
• Malfunction of OSS-ECU
42B-67
DIAGNOSIS PROCEDURE
STEP 1. After performing the locking and
unlocking operations of the electric steering
lock, recheck the diagnosis code.
Q: Is the diagnosis code set?
YES : Replace the electric steering lock and
register the chassis number (Refer to
P.42B-93). Then go to Step 2.
NO : Go to Step 2.
STEP 2. Check whether the diagnosis code is
reset.
Q: Is the diagnosis code set?
YES : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
Code No. B1144 ESL actuation not completed
DIAGNOSTIC FUNCTION
If the control completion information cannot be
received from the electric steering lock via LIN when
the electric steering lock is locked/unlocked,
OSS-ECU sets the diagnosis code No.B1144. At the
same time, OSS-ECU displays the immobilizer certification system inspection warning screen to the
multi information display of the combination meter.
DIAGNOSIS PROCEDURE
STEP 1. Check of short to power supply, short of
earth and open circuit in LIN line between electric
steering lock connector and OSS-ECU connector
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the connector(s) or wiring harness.
JUDGEMENT CRITERIA
Check Conditions
• After OSS-ECU activation
STEP 2. After performing the locking and
unlocking operations of the electric steering
lock, recheck the diagnosis code.
Judgment Criterion
• Control completion information is not received
from the electric steering lock.
Q: Is the diagnosis code set?
YES : Replace the electric steering lock and
PROBABLE CAUSES
• Electric steering lock malfunction
• LIN bus line malfunction
• Malfunction of OSS-ECU
register the chassis number (Refer to
P.42B-93). Then go to Step 3.
NO : Go to Step 3.
STEP 3. Check whether the diagnosis code is
reset.
Q: Is the diagnosis code set?
YES : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
42B-68
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
Code No. B1145 ESL drive circuit fail
Code No. B1152 ESL drive circuit fail(ESL)
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
DIAGNOSTIC FUNCTION
When an error is detected to the driving circuit of
electric steering lock, OSS-ECU sets the diagnosis
codes No.B1145 and No.B1152. At the same time,
OSS-ECU displays the immobiliser certification system inspection warning screen to the multi information display of the combination meter.
JUDGEMENT CRITERIA
Check Conditions
• At electric steering lock certification
Judgment Criterion
• Abnormal signal is received from the electric
steering lock.
PROBABLE CAUSES
• Damaged wiring harness or connector (open circuit or short to earth in PCK line)
• Electric steering lock malfunction
• Malfunction of KOS-ECU
• Malfunction of OSS-ECU
DIAGNOSIS PROCEDURE
YES : Diagnose the KOS. Refer to P.42B-11.
NO : Go to Step 2.
STEP 2. Check of short to power supply, short of
earth and open circuit in PCKM line between
KOS-ECU connector and OSS-ECU connector
Q: Is the check result normal?
YES : Go to Step 3.
NO : Repair the connector(s) or wiring harness.
STEP 3. After performing the locking and
unlocking operations of the electric steering
lock, recheck the diagnosis code.
Q: Is the diagnosis code set?
YES : Replace the electric steering lock and
register the chassis number (Refer to
P.42B-93). Then go to Step 4.
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
STEP 4. Check whether the diagnosis code is
reset.
Q: Is the diagnosis code set?
YES : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
STEP 1. M.U.T.-III other system diagnosis code
After turning the forced power supply output to
"IG-ON" using the M.U.T.-III, check the diagnosis
code of KOS-ECU.
NO : The diagnosis is complete.
Q: Is the diagnosis code set?
Code No. B1146 ESL internal circuit fail
Code No. B1153 ESL internal circuit fail(ESL)
DIAGNOSTIC FUNCTION
When an error is detected to the internal circuit of
electric steering lock, OSS-ECU sets the diagnosis
codes No.B1146 and No.B1153. At the same time,
OSS-ECU displays the immobiliser certification system inspection warning screen to the multi information display of the combination meter.
JUDGEMENT CRITERIA
Check Conditions
• At electric steering lock certification
Judgment Criterion
• Abnormal signal is received from the electric
steering lock.
PROBABLE CAUSES
• Electric steering lock malfunction
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
42B-69
DIAGNOSIS PROCEDURE
1. After performing the locking and unlocking
operations of the electric steering lock, recheck
the diagnosis code of OSS-ECU.
Code No. B1147 LIN communication stop control
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
DIAGNOSTIC FUNCTION
When an error has occurred to the termination
processing of LIN communication with the electric
steering lock and the processing cannot be terminated normally, OSS-ECU sets the diagnosis code
No.B1147.
JUDGEMENT CRITERIA
Check Conditions
• At electric steering lock certification
Judgment Criterion
• LIN communication with the electric steering lock
cannot be terminated normally.
PROBABLE CAUSES
• LIN bus line malfunction (open circuit, short to
earth, or short to power supply in LIN line)
• Damaged wiring harness or connector (open circuit or short to earth in PCO line, or open circuit
in PWR line)
• Electric steering lock malfunction
• Malfunction of OSS-ECU
DIAGNOSIS PROCEDURE
STEP 1. Check of open circuit in PWR line
between electric steering lock connector and
fusible link
NOTE: Before the wiring harness check, check the
joint connector, ETACS-ECU, and repair if necessary.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the connector(s) or wiring harness.
STEP 2. Check of short to power supply, short to
earth, and open circuit in PCO line between
electric steering lock connector and OSS-ECU
connector
NOTE: Because the conformity cannot be determined even when the digital tester is used to measure the voltage of PCO line between the selector
lever assembly connector and OSS-ECU connector,
be sure to use the analogue tester. (With the keyless
operation key placed outside of the vehicle, if the
tester needle swings to the battery voltage when the
engine switch is operated, it is judged normal.)
Q: Is the check result normal?
YES : Go to Step 3.
NO : Repair the connector(s) or wiring harness.
STEP 3. Check of short to power supply, short to
earth, and open circuit in LIN line between
electric steering lock connector and OSS-ECU
connector
Q: Is the check result normal?
YES : Go to Step 4.
NO : Repair the connector(s) or wiring harness.
STEP 4. After performing the locking and
unlocking operations of the electric steering
lock, recheck the diagnosis code.
Q: Is the diagnosis code set?
YES : Replace the electric steering lock and
register the chassis number (Refer to
P.42B-93). Then go to Step 5.
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
STEP 5. Check whether the diagnosis code is
reset.
Q: Is the diagnosis code set?
YES : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
NO : The diagnosis is complete.
42B-70
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
Code No. B1148 ESL power supply
Code No. B1154 ESL power supply fail(ESL)
DIAGNOSTIC FUNCTION
When a short circuit (short to power supply) is
detected in the power supply (microcomputer) circuit
system of the electric steering lock, OSS-ECU sets
the diagnosis codes No.B1148 and No.B1154. At the
same time, OSS-ECU displays the steering lock
abnormality warning screen to the multi information
display of the combination meter. Also, when the
diagnosis code No.B1148 is the past trouble, the LIN
bus may have a problem.
JUDGEMENT CRITERIA
Check Conditions
• At electric steering lock certification
Judgment Criterion
• Short circuit (short to power supply) in the power
supply (microcomputer) circuit system of the
electric steering lock is detected.
DIAGNOSIS PROCEDURE
STEP 1. Check of short to power supply, short of
earth, and open circuit in PCO line between
electric steering lock connector and OSS-ECU
connector
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the connector(s) or wiring harness.
STEP 2. After performing the locking and
unlocking operations of the electric steering
lock, recheck the diagnosis code.
Q: Is the diagnosis code set?
YES : Replace the electric steering lock and
register the chassis number (Refer to
P.42B-93). Then go to Step 3.
NO : Go to Step 3.
PROBABLE CAUSES
•
•
•
•
Damaged harness wires and connectors
Electric steering lock malfunction
Malfunction of OSS-ECU
LIN bus malfunction <B1148 is the past trouble>
STEP 3. Check whether the diagnosis code is
reset.
Q: Is the diagnosis code set?
YES : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction )
Code No. B1149 ESL drive circuit fail
CAUTION
When replacing the ECU, always check that the
communication circuit is normal.
DIAGNOSTIC FUNCTION
When a short to power supply is detected in the electric steering lock driving circuit during the engine start
or during travelling, OSS-ECU sets the diagnosis
code No.B1149. At the same time, OSS-ECU displays the steering lock abnormality warning screen to
the multi information display of the combination
meter.
JUDGEMENT CRITERIA
Check Conditions
• When all the following conditions are met.
a. Power supply mode: ON
b. Battery voltage: 8 V or more
c. During travelling (vehicle speed of 6 km/h or
more) or engine is running (engine speed of
60 r/min or more)
Judgment Criterion
• 1 second or more has elapsed after the PCKM
voltage is judged to be 3.5 V or more.
KEYLESS OPERATION SYSTEM (KOS)
42B-71
TROUBLESHOOTING <OSS-ECU>
PROBABLE CAUSES
• Damaged wiring harness or connector (short to
power supply in PCK line)
• Malfunction of KOS-ECU
• Malfunction of OSS-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III other system diagnosis code
After turning the forced power supply output (refer to
P.42B-50) to "IG-ON" using the M.U.T.-III, check the
diagnosis code of KOS-ECU.
Q: Is the diagnosis code set?
YES : Diagnose the KOS. Refer to P.42B-53.
NO : Go to Step 2.
STEP 3. M.U.T.-III data list
Check the OSS-ECU data list.
Operation Item No.
state
Check item
Displ
ay
After
9
starting
the engine
ESL drive
permission
signal(KOS)
OFF
Other than
above
ON
OK: Operation state and data list display
agree with each other.
Q: Is the check result normal?
YES : Go to Step 4.
NO : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93)
STEP 2. Check of short to power supply, short of
earth, and open circuit in PCK line between
KOS-ECU connector and OSS-ECU connector
Q: Is the check result normal?
YES : Go to Step 3.
NO : Repair the connector(s) or wiring harness.
STEP 4. Check whether the diagnosis code is
reset.
Q: Is the diagnosis code set?
YES : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93)
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction )
Code No.B1150 OSS authentification T/O.(ESL)
DIAGNOSTIC FUNCTION
If the electric steering lock cannot receive the necessary data from OSS-ECU via LIN during the certification communication, OSS-ECU sets the diagnosis
code No.B1150. Also, when the diagnosis code
No.B1150 is the past trouble, the LIN bus may have
a problem.
JUDGEMENT CRITERIA
Check Conditions
• At electric steering lock certification
Judgment Criterion
• During the certification communication, the electric steering lock cannot receive the necessary
data from OSS-ECU via LIN.
PROBABLE CAUSES
• Malfunction of OSS-ECU
• LIN bus malfunction <at past trouble>
DIAGNOSIS PROCEDURE
1. OSS-ECU diagnosis code recheck
Code No. B1155 EEPROM fail(ESL)
DIAGNOSTIC FUNCTION
JUDGEMENT CRITERIA
When the EEPROM writing/reading error of the electric steering lock is detected, OSS-ECU sets the
diagnosis code No.B1155.
Check Conditions
• After OSS-ECU activation
42B-72
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
Judgment Criterion
• When the following conditions are met:
a. EEPROM writing/reading error is detected.
b. ECU internal circuit error is detected.
PROBABLE CAUSES
DIAGNOSIS PROCEDURE
Check whether the diagnosis code is reset.
Q: Is the diagnosis code set?
YES : Replace the electric steering lock, and
register the chassis number.(Refer to
P.42B-93.)
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
• Electric steering lock malfunction
Code No. B1157 OSS EEPROM fail
Code No. B1158 OSS ECU internal fail
DIAGNOSTIC FUNCTION
• When an EEPROM writing/reading error of
OSS-ECU is detected, OSS-ECU sets the diagnosis code No.B1157, and flashes the indicator of
engine switch in orange.
• When an error is detected to the microcomputer
in OSS-ECU, OSS-ECU sets the diagnosis code
No.B1158, and flashes the indicator of engine
switch in orange.
JUDGEMENT CRITERIA
Check Conditions
• After OSS-ECU activation
a. EEPROM writing/reading error is detected.
b. ECU internal circuit error is detected.
PROBABLE CAUSES
• Malfunction of OSS-ECU
DIAGNOSIS PROCEDURE
Check whether the diagnosis code is reset.
Q: Is the diagnosis code set?
YES : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
Judgment Criterion
• When the following conditions are met:
Code No. B1159 Chassis No. not programmed (OSS)
Code No. B1160 Key code not programmed (OSS)
Code No. B1164 Chassis No. not programmed(ESL)
Code No. B1165 Key code not programmed(ESL)
CAUTION
• When the diagnosis code No.B1159, B1160,
B1164, or B1165 is set, be sure to diagnose
the CAN bus line.
• Before replacing ECU, ensure that the communication circuit is normal.
DIAGNOSTIC FUNCTION
• OSS-ECU sets the diagnosis code No.B1159
when the chassis number is not written to
OSS-ECU, and the diagnosis code No.B1160
when the key code is not written.
NOTE: When OSS-ECU is new, the diagnosis codes
No.B1159 and No.B1160 are set simultaneously.
• OSS-ECU sets the diagnosis code No.B1164
when the chassis number is not written to the
electric steering lock, and the diagnosis code
No.B1165 when the key code is not written.
NOTE: When the electric steering lock is new, the
diagnosis codes No.B1164 and No.B1165 are set
simultaneously.
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
JUDGEMENT CRITERIA
Judgment Criterion
• Chassis number or key code has the initial value
(not written)
PROBABLE CAUSES
• Malfunction of the CAN bus line
• Chassis number not written
• Key code not written
42B-73
• Malfunction of OSS-ECU
• Electric steering lock malfunction
DIAGNOSIS PROCEDURE
1. M.U.T.-III CAN bus diagnosis <when B1159 or
B1160 is set>
2. Chassis number registration
3. OSS-ECU diagnosis code recheck
Code No. B1161 Chassis No. mismatch
CAUTION
• When the diagnosis code No.B1161 is set, be
sure to diagnose the CAN bus line.
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSTIC FUNCTION
When the chassis number registered in OSS-ECU is
different from the chassis number transmitted by
engine-ECU on the CAN bus line, OSS-ECU sets the
diagnosis code No.B1161.
JUDGEMENT CRITERIA
Check Conditions
• When all the following conditions are met.
a. Power supply mode: ON
b. Chassis number written in OSS-ECU
Judgment Criterion
• The chassis number received via CAN communication is different from the chassis number written
in OSS-ECU.
PROBABLE CAUSES
• Malfunction of the CAN bus line
• Writing error of chassis number to engine-ECU
(engine-ECU has been interchanged between
two vehicles, or chassis number has not been
written after engine-ECU replacement)
• Malfunction of OSS-ECU
DIAGNOSIS PROCEDURE
1. M.U.T.-III CAN bus diagnosis
2. Check of chassis number in engine-ECU
3. OSS-ECU diagnosis code recheck
Code No. B1163 Coding data mismatch
CAUTION
• When the diagnosis code No.B1163 is set, be
sure to diagnose the CAN bus line.
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSTIC FUNCTION
When the coding data registered in OSS-ECU is different from the coding data transmitted on the CAN
bus, OSS-ECU sets the diagnosis code No.B1163.
At the same time, OSS-ECU displays the power supply system error warning screen to the multi information display of the combination meter, and flashes the
indicator of engine switch in orange.
DIAGNOSIS PROCEDURE
JUDGEMENT CRITERIA
Check Conditions
• For 5 seconds since the start of the reception of
ignition status signal (ON or during cranking)
transmitted from ETACS-ECU.
Judgment Criterion
• A coding data is received which is different from
the current coding status.
PROBABLE CAUSES
• Malfunction of the CAN bus line
• ETACS-ECU malfunction
• ETACS-ECU has been interchanged between
two vehicles
• Malfunction of OSS-ECU
1. M.U.T.-III CAN bus diagnosis
42B-74
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
2. ETACS-ECU diagnosis code check
3. ETACS-ECU coding data check
4. OSS-ECU diagnosis code recheck
Code No. B1166 Special mode
DIAGNOSTIC FUNCTION
When OSS-ECU is in the special operation mode
(ECU is new), OSS-ECU sets the diagnosis code
No.B1166, and flashes the indicator of engine switch
in green. When the engine switch is pressed, only
the power supply mode of the vehicle can be
changed without key certification.
NOTE: After the chassis number and key code are
written, the operation mode shifts to the normal operation mode when the certification communication
becomes valid at an engine switch operation, and the
diagnosis code No.B1166 is erased.
JUDGEMENT CRITERIA
Judgment Criterion
• During special operation mode
PROBABLE CAUSES
• Key code not written
• Malfunction of OSS-ECU
• KOS-ECU malfunction (registration is not complete after the simultaneous replacement with
OSS-ECU)
• Keyless operation key malfunction (registration is
not complete after the simultaneous replacement
with OSS-ECU)
• Electric steering lock malfunction (registration is
not complete after the simultaneous replacement
with OSS-ECU)
DIAGNOSIS PROCEDURE
1. Check the KOS diagnosis code.
2. Check if OSS-ECU diagnosis code No.B1159,
B1160, B1164, or B1165 is set.
3. After operating the engine switch from ON to OFF
twice, recheck the diagnosis code of OSS-ECU.
• Chassis number not written
Code No. B1731 ENG ECU authentification timeout
CAUTION
• When the diagnosis code No. B1731 is set, be
sure to diagnose the CAN bus line.
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSTIC FUNCTION
If the necessary data cannot be received from
engine-ECU via CAN bus line during the engine
starting certification with engine-ECU, OSS-ECU
determines that a problem has occurred, and sets
the diagnosis code No.B1731. At the same time,
OSS-ECU displays the immobilizer certification system inspection warning screen to the multi information display of the combination meter.
JUDGEMENT CRITERIA
Check Conditions
• At engine starting certification
Judgment Criterion
• At the engine starting certification with
engine-ECU, necessary data cannot be received
from engine-ECU via CAN bus line.
PROBABLE CAUSES
• Malfunction of the CAN bus line
• Malfunction of engine-ECU
• Malfunction of OSS-ECU
DIAGNOSIS PROCEDURE
1. M.U.T.-III CAN bus diagnosis
2. Engine-ECU diagnosis code check
3. OSS-ECU diagnosis code recheck
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
42B-75
Code No. B1A28 ENG ECU authentification error
CAUTION
• If the diagnosis code No. B1A28 is set, diagnose the CAN bus lines.
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSTIC FUNCTION
When the OSS certification result is different from the
engine status after the completion of engine starting
permission communication, OSS-ECU determines
that a problem has occurred, and sets the diagnosis
code No.B1A28. At the same time, OSS-ECU displays the immobilizer certification system inspection
warning screen to the multi information display of the
combination meter.
JUDGEMENT CRITERIA
Check Conditions
• At engine starting certification
Judgment Criterion
• Certification result unmatch is received from
engine-ECU.
PROBABLE CAUSES
• Writing error of chassis number to engine-ECU
(engine-ECU has been interchanged between
two vehicles, or chassis number has not been
written after engine-ECU replacement)
• Malfunction of the CAN bus line
• Malfunction of OSS-ECU
DIAGNOSIS PROCEDURE
1. M.U.T.-III CAN bus diagnosis
2. Checking whether OSS-ECU diagnosis code
No.B1161 is set
3. OSS-ECU diagnosis code recheck
Code No. U0141 ETACS CAN timeout
CAUTION
• If diagnosis code No. U0141 is set, be sure to
diagnose the CAN bus line.
• Before replacing ECU, ensure that the communication circuit is normal.
DIAGNOSTIC FUNCTION
When the signal from ETACS-ECU cannot be
received, OSS-ECU sets the diagnosis code
No.U0141.
JUDGEMENT CRITERIA
Check Conditions
• When all the following conditions are met.
a. Power supply mode: ON
b. ETACS-ECU system voltage is at 10 to 16 V.
Judgment Criterion
• After the following condition is met, 2,500 ms or
more have elapsed.
a. CAN signal from ETACS-ECU cannot be
received.
PROBABLE CAUSES
•
•
•
•
Malfunction of the CAN bus line
ETACS-ECU malfunction
Malfunction of ETACS-ECU power supply circuit
Malfunction of OSS-ECU
DIAGNOSIS PROCEDURE
1. M.U.T.-III CAN bus diagnosis
2. Diagnosis code check of combination meter
3. OSS-ECU diagnosis code recheck
Code No. U0155 Meter CAN timeout
CAUTION
• If diagnosis code No. U0155 is set, be sure to
diagnose the CAN bus line.
• Before replacing ECU, ensure that the communication circuit is normal.
DIAGNOSTIC FUNCTION
When the signal from the combination meter cannot
be received, OSS-ECU sets the diagnosis code
No.U0155.
42B-76
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
JUDGEMENT CRITERIA
Check Conditions
• When all the following conditions are met.
a. Power supply mode: ON
b. ETACS-ECU system voltage is at 10 to 16 V.
Judgment Criterion
• After the following condition is met, 2,500 ms or
more have elapsed.
a. CAN signal from the combination meter cannot be received.
PROBABLE CAUSES
• Malfunction of the CAN bus line
• Combination meter malfunction
• Malfunction of combination meter power supply
circuit
• Malfunction of OSS-ECU
DIAGNOSIS PROCEDURE
1. M.U.T.-III CAN bus diagnosis
2. ETACS-ECU diagnosis code check
3. OSS-ECU diagnosis code recheck
Code No. U0164 A/C CAN timeout
CAUTION
• If diagnosis code No. U0164 is set, be sure to
diagnose the CAN bus line.
• Before replacing ECU, ensure that the communication circuit is normal.
DIAGNOSTIC FUNCTION
When the signal from the heater control unit or
A/C-ECU cannot be received, OSS-ECU sets the
diagnosis code No.U0164.
JUDGEMENT CRITERIA
Check Conditions
• When all the following conditions are met.
a. Power supply mode: ON
b. ETACS-ECU system voltage is at 10 to 16 V.
Judgment Criterion
• After the following condition is met, 2,500 ms or
more have elapsed.
a. CAN signal from the heater control unit or
A/C-ECU cannot be received.
PROBABLE CAUSES
• Malfunction of the CAN bus line
• Malfunction of heater control unit or A/C-ECU
• Malfunction of heater control unit or A/C-ECU
power supply circuit
• Malfunction of OSS-ECU
DIAGNOSIS PROCEDURE
1. M.U.T.-III CAN bus diagnosis
2. ETACS-ECU diagnosis code check
3. OSS-ECU diagnosis code recheck
Code No. U0168 KOS CAN timeout
CAUTION
• If diagnosis code No. U0168 is set, be sure to
diagnose the CAN bus line.
• Before replacing ECU, ensure that the communication circuit is normal.
DIAGNOSTIC FUNCTION
When the signal from KOS-ECU cannot be received,
OSS-ECU sets the diagnosis code No.U0168.
JUDGEMENT CRITERIA
Check Conditions
• When all the following conditions are met.
a. Power supply mode: ON
b. ETACS-ECU system voltage is at 10 to 16 V.
Judgment Criterion
• After the following condition is met, 2,500 ms or
more have elapsed.
a. CAN signal from KOS-ECU cannot be
received.
PROBABLE CAUSES
•
•
•
•
Malfunction of the CAN bus line
Malfunction of KOS-ECU
Malfunction of KOS-ECU power supply circuit
Malfunction of OSS-ECU
DIAGNOSIS PROCEDURE
1. M.U.T.-III CAN bus diagnosis
2. ETACS-ECU diagnosis code check
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
42B-77
3. OSS-ECU diagnosis code recheck
Code No. U1190: No receive fault detect signal
CAUTION
• If the diagnosis code No. U1190 is set, diagnose the CAN bus lines.
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSTIC FUNCTION
When the signal from the ETACS-ECU cannot be
received, OSS-ECU sets the diagnosis code
No.U1190.
JUDGEMENT CRITERIA
Check Conditions
• When all the following conditions are met.
a. Power supply mode: ON
b. ETACS-ECU system voltage is at 10 to 16 V.
Judgment Criterion
• After the following condition is met, 5,000 ms or
more have elapsed.
a. CAN signal from the ETACS-ECU cannot be
received.
PROBABLE CAUSES
• Malfunction of the CAN bus line
• Malfunction of ETACS-ECU
• Malfunction of OSS-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus line (Refer to GROUP
54C − Troubleshooting ).
STEP 2. M.U.T.-III other system diagnosis code
Check again if the diagnosis code is set to the
ETACS-ECU.
Q: Is the diagnosis code set?
YES : Diagnose the ETACS-ECU (Refer to
GROUP 54A, Troubleshooting ).
NO : Go to Step 3.
STEP 3. M.U.T.-III other system diagnosis code
Check again if the diagnosis code is set to the
SRS-ECU.
Q: Is the diagnosis code set?
YES : Replace the ETACS-ECU.
NO : Go to Step 4.
STEP 4. Diagnosis code recheck
Check again if the diagnosis code is set to the
OSS-ECU.
(1) Erase the diagnosis code.
(2) Turn the engine switch from the LOCK (OFF)
position to the ON position.
(3) Check if the diagnosis code is set.
Q: Is the diagnosis code set?
YES : Replace the OSS-ECU.
NO : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to cope with Intermittent Malfunction ).
Code No. U1195 Coding not completed
CAUTION
• If diagnosis code No. U1195 is set, diagnose
the CAN bus lines.
• When replacing the ECU, always check that
the communication circuit is normal.
DIAGNOSTIC FUNCTION
When the coding data is not registered, OSS-ECU
sets the diagnosis code No.U1195.
Judgment Criterion
JUDGEMENT CRITERIA
Check Conditions
• When all the following conditions are met.
a. Coding is not completed.
b. For 5 seconds since the start of the reception
of ignition status signal (ON or during cranking) transmitted from ETACS-ECU.
• Any of the coding is not completed normally.
KEYLESS OPERATION SYSTEM (KOS)
42B-78
TROUBLESHOOTING <OSS-ECU>
PROBABLE CAUSES
DIAGNOSIS PROCEDURE
• Malfunction of the CAN bus line
• Variant coding for ETACS-ECU has not been
implemented.
• Malfunction of OSS-ECU
• ETACS-ECU malfunction
1. M.U.T.-III CAN bus diagnosis
2. ETACS-ECU diagnosis code check
3. OSS-ECU diagnosis code recheck
DATA LIST REFERENCE TABLE
M1429605000318
Item No.
Check item
Check condition
Normal
condition
1
Engine switch(1)
When the engine switch is pressed
ON
When the engine switch is not pressed
OFF
When the engine switch is pressed
ON
When the engine switch is not pressed
OFF
When the brake pedal is depressed
ON
When the brake pedal is released
OFF
Shift the selector lever to the position
other than the P position.
Outside park
Shift the selector lever to the P position.
Park
2
3
8
9
13
15
16
17
Engine switch(2)
Stop lamp switch
P range detect SW
ESL drive permission signal(KOS) After starting the engine
Cranking signal output(monitor)
IG1 output (monitor)
IG2 output (monitor)
OSS power supply status*
OFF
Other than above
ON
Cranking
ON
Other than above
OFF
Power supply mode is turned ON or the ON
engine is being started by the pressing of
engine switch.
Other than above
OFF
Power supply mode is turned ON.
ON
Other than above
OFF
Power supply mode is abnormal.
Default or SNA
Power supply mode is OFF.
IG OFF
Power supply mode is ACC.
IG ACC
Power supply mode is ON.
IG ON
Ignition switch ON
IG START
Ignition switch ON
IG RUN(judging)
18
+B1 Power supply voltage (AD)
Always
System voltage
19
+B2 Power supply voltage (AD)
Always
System voltage
20
ESL unlock SW(1)
Unlock SW (1) is abnormal.
Default or SNA
Electric steering lock: Unlock
ON
Electric steering lock: Lock
OFF
Lock SW is abnormal.
Default or SNA
Electric steering lock: Unlock
OFF
Electric steering lock: Lock
ON
21
ESL lock SW
KEYLESS OPERATION SYSTEM (KOS)
42B-79
TROUBLESHOOTING <OSS-ECU>
Item No.
Check item
Check condition
Normal
condition
22
ESL unlock SW(2)
Unlock SW (2) is abnormal.
Default or SNA
Electric steering lock: Unlock
ON
Electric steering lock: Lock
OFF
Electric steering lock is abnormal.
Default or SNA
Electric steering lock: Lock or unlock
drive
Driving
Electric steering lock is not in operation.
Stop
Electric steering lock is in fail-safe
operation.
Fail
23
ESL status
NOTE: .
ACTUATOR TEST TABLE
M1429605100155
• *: Indicates the output status of OSS-ECU.
Item No. Item name
Test item
Driven component
1
Engine switch(Control)
ON
Operate the engine switch
once.
2
Engine switch(LED ON)
LED selection (Orange, Green,
Character)
Indicator of engine switch
is illuminated.
NOTE: When the actuator test item No.1 is executed, the engine switch indicator flashes in orange.
SPECIAL FUNCTION TABLE
M1429627900030
ECU INFORMATION
Function name (M.U.T.-III
display)
Contents
ECU Information
Displays the Chassis Number/VIN (Original) and Chassis Number/VIN
(Current).
FORCED POWER SUPPLY OUTPUT
Function name (M.U.T.-III
Contents
display)
Forced power supply output
Performs the forced power supply output (IG-ACC, IG-ON, or IG-ST).
FORCED POWER SUPPLY OUTPUT (STOP)
Function name (M.U.T.-III
Contents
display)
Forced power supply output(stop) Stops the forced power supply output.
TROUBLE SYMPTOM CHART
M1429604501067
Trouble symptom
Inspection
procedure
number
Reference
page
Abnormality in OSS-ECU power supply and earth circuit
1
P.42B-80
Vehicle power does not turn ON (not possible with both of power supply mode 2
ACC and ON)
P.42B-81
Vehicle power does not turn ON (Not possible with power supply mode ACC
only)
P.42B-82
3
42B-80
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
Trouble symptom
Inspection
procedure
number
Reference
page
Vehicle power does not turn ON (Not possible with power supply mode ON
only)
4
P.42B-83
Engine does not start (cranking is not performed)
5
P.42B-83
Vehicle power cannot be turned OFF when the shift position is in "P" (Power
supply mode ON to ACC is possible)
6
P.42B-85
Electric steering lock does not become locked. (Power supply mode is OFF.) 7
P.42B-86
SYMPTOM PROCEDURES
Inspection Procedure 1: Abnormality in OSS-ECU power supply and earth circuit
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communication circuit are normal.
COMMENTS ON TROUBLE SYMPTOM
When OSS-ECU cannot communicate with the
M.U.T.-III, the power supply or earth circuit system of
OSS-ECU may be faulty.
PROBABLE CAUSES
• Damaged harness wires and connectors
• Malfunction of OSS-ECU
DIAGNOSIS PROCEDURE
STEP 1. Resistance measurement at OSS-ECU
connector (PGND terminal)
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Measure the resistance between the OSS-ECU
connector (PGND terminal) and body earth.
OK: Continuity exists (2 Ω or less)
Q: Is the check result normal?
YES : Go to Step 3.
NO : Go to Step 2.
STEP 2. Check of open circuit in PGND line
between OSS-ECU connector and earth joint
connector
NOTE: Before the wiring harness check, check the
joint connector, and repair if necessary.
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
NO : Repair the connector(s) or wiring harness.
STEP 3. Resistance measurement at OSS-ECU
connector (SGND terminal)
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Measure the resistance between the OSS-ECU
connector (SGND terminal) and body earth.
OK: Continuity exists (2 Ω or less)
Q: Is the check result normal?
YES : Go to Step 5.
NO : Go to Step 4.
STEP 4. Check of open circuit in SGND line
between OSS-ECU connector and earth joint
connector
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
NO : Repair the connector(s) or wiring harness.
STEP 5. Voltage measurement at OSS-ECU
connector (+B1 terminal)
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Check the voltage between the OSS-ECU
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
connector (+B1 terminal) and body earth.
OK: System voltage
Q: Is the check result normal?
YES : Go to Step 7.
NO : Go to Step 6.
STEP 6. Check of short to power supply, short to
earth, and open circuit in +B1 line between
fusible link and OSS-ECU connector
NOTE: Before the wiring harness check, check the
ETACS-ECU connector and joint connector, and
repair if necessary.
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
NO : Repair the connector(s) or wiring harness.
STEP 7. Voltage measurement at OSS-ECU
connector (+B2 terminal)
(1) Disconnect the connector, and measure at the
42B-81
wiring harness side.
(2) Check the voltage between the OSS-ECU
connector (+B2 terminal) and body earth.
OK: System voltage
Q: Is the check result normal?
YES : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
NO : Go to Step 8.
STEP 8. Check of short to power supply, short to
earth, and open circuit in +B1 line between
fusible link and OSS-ECU connector
NOTE: Before the wiring harness check, check the
ETACS-ECU connector and joint connector, and
repair if necessary.
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
NO : Repair the connector(s) or wiring harness.
Inspection Procedure 2: Vehicle power does not turn ON. (not possible with both of power supply
mode ACC and ON)
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communication circuit are normal.
COMMENTS ON TROUBLE SYMPTOM
When the vehicle power does not turn ON (not possible with both of power supply mode ACC and ON),
the battery, CAN bus line, OSS-ECU, OSS-ECU
power supply, or earth circuit may have a problem.
NOTE: OSS-ECU can communicate with the
M.U.T.-III even when the engine switch is in the
"OFF" position.
PROBABLE CAUSES
• Malfunction of battery
• Damaged wiring harness and connectors
• Malfunction of engine switch (poor connector
contact, poor engine switch contact)
• Malfunction of the CAN bus line
• Malfunction of OSS-ECU
• ETACS-ECU malfunction
DIAGNOSIS PROCEDURE
STEP 1. Battery check
Perform the battery test to check the battery status.
(Refer to GROUP 54A − Battery .)
Q: Is the check result normal?
YES : Go to Step 2.
NO : Replace the battery.
STEP 2. Check that the M.U.T.-III communicates
with this system.
Check that the communication with M.U.T.-III is possible.
NOTE: If ETACS-ECU is not active, OSS-ECU cannot communicate with the M.U.T.-III.
(1) Perform the ON/OFF operation of any of the door
switches for several times, or open any of the
doors.
(2) Check that OSS-ECU can communicate with the
M.U.T.-III.
Q: Is the check result normal?
YES : Go to Step 3.
NO : Carry out the troubleshooting of "OSS-ECU
power supply or earth circuit
malfunction".(Refer to P.42B-80.)
42B-82
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
STEP 3. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.
STEP 6. Check of the troubles
Check that the vehicle power can be turned ON.
Q: Is the check result normal?
YES : Go to Step 4.
NO : Repair the CAN bus line (Refer to GROUP
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
54C − Troubleshooting ).
STEP 4. M.U.T.-III diagnosis code
Check if the diagnosis code is set to OSS-ECU.
Q: Is the diagnosis code set?
YES : Diagnose the OSS. Refer to P.42B-53.
NO : Go to Step 5.
STEP 5. Engine switch check
Continuity check of engine switch (Refer to
P.42B-101.)
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
NO : Carry out the troubleshooting relevant to the
input signal of ETACS-ECU. (Refer to
GROUP 54A − ETACS .) Then, go to Step 7.
STEP 7. Check of the troubles
Check that the vehicle power can be turned ON.
Q: Is the check result normal?
YES : This diagnosis is complete.
NO : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
Q: Is the check result normal?
YES : Go to Step 6.
NO : Replace the engine switch.
Inspection Procedure 3: Vehicle power does not turn ON. (Not possible with power supply mode ACC
only)
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communication circuit are normal.
COMMENTS ON TROUBLE SYMPTOM
When the vehicle power does not turn ON (not possible with power supply mode ACC only), the possible
cause may be that the OSS-ECU cannot output the
ACC signal, or that the ACC internal relay of
ETACS-ECU does not turn ON. Therefore,
OSS-ECU or ETACS-ECU may have a problem.
PROBABLE CAUSES
• Malfunction of OSS-ECU
• Malfunction of ETACS-ECU
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III diagnosis code
Check if the diagnosis code is set to OSS-ECU.
Q: Is the diagnosis code set?
YES : Diagnose the OSS. Refer to P.42B-53.
NO : Go to Step 2.
STEP 2. Voltage measurement at ETACS-ECU
connector (ACC terminal)
(1) With the ETACS-ECU connector kept connected,
measure by backprobing.
(2) Using the M.U.T.-III, set the forced power supply
output to "IG-ACC".(Refer to P.42B-50.)
(3) Measure the voltage between the ETACS-ECU
connector (ACC terminal) and body earth.
OK: System voltage
Q: Is the check result normal?
YES : Go to Step 3.
NO : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
STEP 3. Check of the troubles
Check that the vehicle power (power supply mode
ACC) can be turned ON.
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
NO : Carry out the troubleshooting relevant to the
input signal of ETACS-ECU. (Refer to
GROUP 54A − ETACS .)
KEYLESS OPERATION SYSTEM (KOS)
TROUBLESHOOTING <OSS-ECU>
42B-83
Inspection Procedure 4: Vehicle power does not turn ON. (Not possible with power supply mode ON
only)
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communication circuit are normal.
COMMENTS ON TROUBLE SYMPTOM
If the vehicle power does not turn ON (not possible
with power supply mode ON only), the possible
cause may be that the OSS-ECU cannot output the
IG1 signal, or that the IG1 internal relay of
ETACS-ECU does not turn ON. Therefore,
OSS-ECU or ETACS-ECU may have a problem.
PROBABLE CAUSES
• Malfunction of OSS-ECU
• Malfunction of ETACS-ECU
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III diagnosis code
Check if the diagnosis code is set to OSS-ECU.
Q: Is the diagnosis code set?
YES : Diagnose the OSS. Refer to P.42B-53.
NO : Go to Step 2.
STEP 2. Voltage measurement at ETACS-ECU
connector (IG1 terminal)
(1) With the ETACS-ECU connector kept connected,
measure by backprobing.
(2) Using the M.U.T.-III, set the forced power supply
output to "IG-ON".(Refer to P.42B-50.)
(3) Measure the voltage between the ETACS-ECU
connector (IG1 terminal) and body earth.
OK: System voltage
Q: Is the check result normal?
YES : Go to Step 3.
NO : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
STEP 3. Check of the troubles
Check that the vehicle power (power supply mode
ON) can be turned ON.
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
NO : Carry out the troubleshooting relevant to the
input signal of ETACS-ECU. (Refer to
GROUP 54A − ETACS .)
Inspection Procedure 5: Engine does not start (cranking is not performed).
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communication circuit are normal.
• Engine-ECU malfunction
• ETACS-ECU malfunction
PROBABLE CAUSES
COMMENTS ON TROUBLE SYMPTOM
When the engine does not start (cranking is not performed), the battery malfunction, stop lamp switch
malfunction, engine starting circuit malfunction, or
OSS-ECU malfunction may be present.
PROBABLE CAUSES
• Malfunction of battery
• Damaged wiring harness or connector (open circuit in STOE line)
• Error in engine starting circuit system
• Stop lamp switch malfunction
• Malfunction of the CAN bus line
• Malfunction of OSS-ECU
• Malfunction of AS&G-ECU
STEP 1. Battery check
Perform the battery test to check the battery status.
(Refer to GROUP 54A − Battery .)
Q: Is the check result normal?
YES : Go to Step 2
NO : Replace the battery.
STEP 2. M.U.T.-III diagnosis code
Check if the diagnosis code is set to OSS-ECU.
Q: Is the diagnosis code set?
YES : Diagnose the OSS-ECU. Refer to
P.42B-53.
NO : Go to Step 3
KEYLESS OPERATION SYSTEM (KOS)
42B-84
TROUBLESHOOTING <OSS-ECU>
STEP 3. M.U.T.-III data list
Check the OSS-ECU data list.
• Operate the brake pedal.
Operation Item No.
state
Check item
Displ
ay
STEP 6. M.U.T.-III other system data list
Check the engine-ECU data list.
(1) Using the M.U.T.-III, set the forced power supply
output to "IG-ST".(Refer to P.42B-50.)
(2) Check the engine-ECU data list.
Brake
3
pedal is
depressed
Stop lamp switch
ON
Item No.
Check item
Display
79
Cranking signal
(Ignition switch-ST)
ON
Brake
pedal
released
OFF
OK: Operation state and data list display
agree with each other.
Q: Is the check result normal?
YES : Go to Step 5
NO : Go to Step 4
STEP 4. Stop Lamp Switch Check
Continuity check of stop lamp switch (Refer to
GROUP 35A − Brake Pedal ).
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
NO : Replace the stop lamp switch.
STEP 5. Voltage measurement at ETACS-ECU
connector (STOE terminal)
(1) With the ETACS-ECU connector kept connected,
measure by backprobing.
(2) Using the M.U.T.-III, set the forced power supply
output to other than "IG-ST".(Refer to P.42B-50.)
(3) Measure the voltage between the ETACS-ECU
connector (STOE terminal) and body earth.
OK: 1 V or less
(4) Using the M.U.T.-III, set the forced power supply
output to "IG-ST".(Refer to P.42B-50.)
(5) Measure the voltage between the ETACS-ECU
connector (STOE terminal) and body earth.
OK: System voltage
Q: Is the check result normal?
YES : Go to Step 6
NO : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
OK: Operation state and data list display
agree with each other.
(3) Using the M.U.T.-III, set the forced power supply
output to other than "IG-ST".(Refer to P.42B-50.)
(4) Check the engine-ECU data list.
Item No.
Check item
Display
79
Cranking signal
(Ignition switch-ST)
OFF
OK: Operation state and data list display
agree with each other.
Q: Is the check result normal?
YES : Go to Step 8
NO : Go to Step 7
STEP 7. Check of open circuit in STOE line
between ETACS-ECU connector and engine-ECU
connector
Q: Is the check result normal?
YES : Replace the engine-ECU and register the
chassis number and key codes [Refer to
GROUP 00 − How to Perform Chassis
Number (Chassis No.) Writing ].
NO : Repair the connector(s) or wiring harness.
STEP 8. Check of the troubles
Check whether the engine is started (cranking is performed).
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
NO : There is a problem with the engine starting
circuit system of engine-ECU. Carry out the
troubleshooting relevant to the engine
starting circuit system. (Refer to GROUP
13A − Troubleshooting .)
KEYLESS OPERATION SYSTEM (KOS)
42B-85
TROUBLESHOOTING <OSS-ECU>
Inspection Procedure 6: Vehicle power cannot be turned OFF when the shift position is in "P." (Power
supply mode ON to ACC is possible)
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the earth circuit and the communication circuit are normal.
STEP 3. Check of selector lever assembly (P
range detection switch)
Disconnect the selector lever assembly connector,
and check the continuity at the equipment side.
COMMENTS ON TROUBLE SYMPTOM
Terminal
No.
Operation state
Normal
conditions
4−6
Selector lever: P
position
No continuity
When the shift position is judged to be in the P position based on the input of P range detection switch,
OSS-ECU can turn OFF the vehicle power supply. If
the vehicle power cannot be turned OFF (power supply mode ON to ACC is possible) when the shift is in
P position, the P range detection switch or OSS-ECU
may have a problem.
PROBABLE CAUSES
• Damaged wiring harness or connector (short to
earth in PDSW line)
• Malfunction of selector lever assembly (ON seizure of P range detection switch)
• Malfunction of OSS-ECU
Selector lever: Other Continuity
than P position
exists (2 Ω or
less)
Q: Is the check result normal?
YES : Go to Step 4.
NO : Replace the selector lever assembly.
STEP 4. M.U.T.-III data list
Check the OSS-ECU data list.
• Operate the selector lever.
DIAGNOSIS PROCEDURE
Operation Item No.
state
Check item
STEP 1. M.U.T.-III diagnosis code
Check if the diagnosis code is set to OSS-ECU.
Selector
lever: P
position
P range detect SW Outsi
de
park
Q: Is the diagnosis code set?
YES : Diagnose the OSS-ECU. Refer to P.42B-53.
NO : Go to Step 2.
STEP 2. Check of short to earth in PDSW line
between selector lever assembly connector and
OSS-ECU connector
NOTE: Because the conformity cannot be determined even when the digital tester is used to measure the voltage of PDSW line between the selector
lever assembly connector and OSS-ECU connector,
be sure to use the oscilloscope. (Outputs the sawtooth waveform of 0 to 5 V with intervals of 10 ms.)
Q: Is the check result normal?
YES : Go to Step 3.
NO : Repair the connector(s) or wiring harness.
Selector
lever:
Other than
P position
8
Displ
ay
Park
OK: Operation state and data list display
agree with each other.
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
NO : Replace the OSS-ECU and register the
chassis number (Refer to P.42B-93).
KEYLESS OPERATION SYSTEM (KOS)
42B-86
TROUBLESHOOTING <OSS-ECU>
Inspection Procedure 7: Electric steering lock does not become locked. (At power supply mode OFF)
COMMENTS ON TROUBLE SYMPTOM
STEP 2. M.U.T.-III other system data list
Check the ETACS-ECU data list.
• Open the each door.
The electric steering lock performs the locking operation by using the opening/closing of the door
(ON/OFF of door switch) as a trigger. If the electric
steering lock is not unlocked, the door switch circuit
system or the electric steering lock may have a problem.
PROBABLE CAUSES
•
•
•
•
Malfunction of OSS-ECU
Malfunction of the door switch
Electric steering lock malfunction
Damaged harness wires and connectors
Item No.
Check item
Normal
condition
Item 256
Dr door ajar switch
Open
Item 257
As door ajar switch
Open
Item 258
RR door ajar switch
Open
Item 259
RL door ajar switch
Open
OK: Normal condition is displayed.
Q: Is the check result normal?
YES : Go to Step 3.
NO : Diagnose the ETACS-ECU. Refer to .
PROBABLE CAUSES
STEP 1. M.U.T.-III diagnosis code
Check if the diagnosis code is set to OSS-ECU.
STEP 3.Check of the troubles
Check if the electric steering lock becomes locked
when the power supply mode is OFF.
Q: Is the diagnosis code set?
YES : Diagnose the OSS. Refer to P.42B-53.
NO : Go to Step 2.
Q: Is the check result normal?
YES : Intermittent malfunction is suspected (Refer
to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points −
How to Cope with Intermittent Malfunction ).
NO : Replace the electric steering lock and
register the chassis number (Refer to
P.42B-93).
TERMINAL VOLTAGE REFERENCE
CHART
M1429606800696
OSS-ECU TERMINAL CHECK
AC905484
Terminal Terminal Check item
number code
Check conditions
Normal
conditions
1
CANH
CAN bus line
−
−
2
SGND
Earth (for signal)
Always
1 V or less
3
−
−
−
−
4
LEDA
Engine switch LED (orange)
ON signal
Power supply mode: ACC
System voltage
5
LEDG
Engine switch LED (green)
ON signal
Power supply mode: ON
System voltage
KEYLESS OPERATION SYSTEM (KOS)
42B-87
TROUBLESHOOTING <OSS-ECU>
Terminal Terminal Check item
number code
Check conditions
Normal
conditions
6
LEDW
Engine switch LED (character Always
illumination) ON signal
System voltage
7
IG1
IG1 output signal
Power supply mode: ON
System voltage
Power supply mode: Other than
ON
1 V or less
8-9
−
−
−
−
10
ACC
ACC output signal
Power supply mode: ACC
System voltage
Power supply mode: Other than
ACC
1 V or less
11
IG2
IG2 output signal
Power supply mode: ON (Without System voltage
cranking)
Power supply mode: Other than
ON
1 V or less
12
BKOS
Back-up power supply for
KOS
When the engine switch is
System voltage
pressed to turn the power supply
mode OFF
13
+B1
Battery power supply
Always
System voltage
14
CANL
CAN bus line
−
−
15
PGND
Earth (for CPU)
Always
1 V or less
16
LIN
LIN bus line (local) for electric −
steering lock
−
17
PDSW
P position detection signal
Selector lever: P position
0 to 5 V (pulse
signal)
Selector lever: Other than P
position
1 V or less
18
−
−
−
−
19
SW2
Engine switch ON/OFF
detection signal
When the engine switch is
pressed
1 V or less
When the engine switch is not
pressed
0 to 5 V (pulse
signal)
20
−
−
−
−
21
PCK
Actuator driving permission
monitoring signal
At engine start and when KOS
power is OFF
1 V or less
Other than above
System voltage
22
−
−
−
−
23
ST
Starter output signal
Cranking
System voltage
Other than above
1 V or less
−
−
24
−
−
25
PCO
Power control output terminal Power supply mode: OFF
for electric steering lock
Power supply mode: Other than
OFF
System voltage
−
−
26
−
−
1 V or less
KEYLESS OPERATION SYSTEM (KOS)
42B-88
ON-VEHICLE SERVICE <KOS-ECU>
Terminal Terminal Check item
number code
Check conditions
Normal
conditions
27
When the brake pedal is
depressed
System voltage
STP1
Stop lamp switch ON/OFF
detection signal
When the brake pedal is released 1 V or less (pulse
signal)
28
−
−
−
−
29
SW1
Engine switch ON/OFF
detection signal
When the engine switch is
pressed
System voltage
When the engine switch is not
pressed
1 V or less
30
−
−
−
−
31
IG2M
IG2 relay drive status
detection signal
At ACC, OFF or during engine
cranking
1 V or less
Other than above
System voltage
Always
System voltage
32
+B2
Battery power supply
ON-VEHICLE SERVICE <KOS-ECU>
ID CODES REGISTRATION
PROCEDURES
M1429611700985
For the details of key registration procedure, refer to the ID registration procedure manual.
KEY SUPPLY UNIT
Keyless operation key
Electric tailgate switch
<Vehicles with electric tailgate>
ACC00107AB
Emergency key
AC610642
KEYLESS OPERATION SYSTEM (KOS)
ON-VEHICLE SERVICE <KOS-ECU>
42B-89
KEY SUPPLY UNIT LIST FOR OTHER THAN INDIVIDUAL KEY
Door service key set
NOTE: It is the key that comes with the door
service key set. It can only be used for locking
and unlocking, and it cannot start the engine.
AC608188
ANTENNA COMMUNICATION TEST
M1429606400201
Through the operations on the M.U.T.-III screen, the
antenna communication tests can be performed.
NOTE: For details on how to use the M.U.T.-III, refer
to the "M.U.T.-III User's Manual."
Security appli. file generation
Diagnosis connector
ACA00666AB
4. Select "Comm. Test" on the "Special Function"
screen.
MB992745, MB991910
MB992744, MB991824
OK button
AC509796AC
MB992747, MB992748, MB991827
ACB05017 AB
1. Start the M.U.T.-III system on the PC
2. Select "KOS/IMMO/Keyless" button from the
"System Select" screen. Then, select the
applicable option code item and push the OK
button.
3. Select "Special Function" on the next screen.
• Operate the keyless operation key to check that
the doors and tailgate can be locked and
5. Select the antenna to be tested on "Comm. Test"
screen, and press the OK button with the keyless
operation key placed within the communication
operational area.
6. Push the OK button after "Communication is
normal." is displayed.
KEYLESS ENTRY SYSTEM CHECK
M1429611800227
Check the keyless entry system as described below.
If it does not work, perform troubleshooting (Refer to
P.42B-33).
unlocked.
42B-90
KEYLESS OPERATION SYSTEM (KOS)
ON-VEHICLE SERVICE <KOS-ECU>
• Operate the keyless operation key to check that
the answerback function works in response to
door and tailgate locking/unlocking.
NOTE: The hazard answerback setting can be
changed using the customisation function. Confirm which setting is activated before performing
these checks (Refer to P.42B-90).
INSPECTION OF MULTI-MODE KEYLESS
ENTRY FUNCTION
M1429612100328
Operate the keyless operation key to check that the
electric-folding door mirrors <Vehicles with electric
retractable remote controlled door mirrors> work. If
they do not work, carry out troubleshooting (Refer to
P.42B-33).
NOTE: The settings of the operation of the electric-folding door mirrors <Vehicles with electric
retractable remote controlled door mirrors> can be
changed using the customisation function. Confirm
which settings are activated before performing diagnosis (Refer to P.42B-90).
INSPECTION OF KEYLESS ENTRY TIMER
LOCK FUNCTION
M1429612200240
Attempt to unlock the doors by using the keyless
operation key. If the doors are not locked within 30
seconds, carry out troubleshooting. Note that the
doors will not be locked if the ignition key is inserted
within the 30-second period, one of the doors is
opened is triggered. Refer to P.42B-33.
NOTE: The operation time of the keyless entry timer
lock function can be set using the customisation
function. Confirm the operation time before performing the diagnosis. Refer to P.42B-90.
POWER DOOR LOCKS WITH SELECTIVE
UNLOCKING INSPECTION
M1429619600205
Check the power door locks with selective unlocking
as described below. If it does not work, perform troubleshooting (Refer to P.42B-33).
NOTE: The setting of the power door locks with
selective unlocking can be changed using the customisation function. Confirm which setting is activated before performing these checks. Refer to
P.42B-90.
• Press the unlock switch on the keyless operation
key once to unlock only the driver's door. Press
the unlock switch of the keyless operation key
once again within 2 seconds after the driver's
door is unlocked, and check that the front passenger's door, rear doors, and tailgate are
unlocked.
NOTE: Press the unlock switch on the keyless operation key once to unlock only the driver's door.
When the unlock switch of the keyless operation
key is pressed once again more than 2 seconds
after the driver's door is unlocked, only the
driver's door is unlocked.
• Press the lock and unlock switch on the door outside handle (driver’s side) once to unlock only the
driver's door. Press the lock and unlock switch of
the door outside handle (driver’s side) once again
within 2 seconds after the driver's door is
unlocked, and check that the front passenger's
door, rear doors, and tailgate are unlocked.
NOTE: Press the lock and unlock switch on the door
outside handle (driver’s side) once to unlock only
the driver's door. When the lock and unlock
switch of the door outside handle (driver’s side) is
pressed once again more than 2 seconds after
the driver's door is unlocked, only the driver's
door is unlocked.
CUSTOMISATION FUNCTION
M1429611601066
By operating the M.U.T.-III ETACS system, the following functions can be customised. The programmed information is held even when the battery
is disconnected.
KEYLESS OPERATION SYSTEM (KOS)
ON-VEHICLE SERVICE <KOS-ECU>
42B-91
Adjustment
item (M.U.T.-III
display)
Adjustment item
Adjusting content
(M.U.T.-III display)
Adjusting content
Hazard answer
back
Adjustment of the
number of keyless
hazard warning
lamp answer back
flashes
Lock:1, Unlock:2
LOCK: Flashes once, UNLOCK: Flashes
twice (initial condition)
Lock:1, Unlock:0
LOCK: Flashes once, UNLOCK: No flash
Lock:0, Unlock:2
LOCK: No flash, UNLOCK: Flash twice
Lock:2, Unlock:1
LOCK: Flash twice, UNLOCK: Flash once
Lock:2, Unlock:0
LOCK: Flash twice, UNLOCK: No flash
Lock:0, Unlock:1
LOCK: No flash, UNLOCK: Flash once
Lock:0, Unlock:0
No function
Auto fold mirror Electric folding door
mirror automatic
unfolding function
<vehicles with
electric retractable
remote controlled
door mirrors>
Not Auto
No synchronised operation
Open Vehicle SPD
Vehicle speed-dependent operation
Open/Close by IG
Ignition switch linked operation
OPN/CLS Keyless
Keyless entry linked operation (initial
condition)
Auto door
unlock
Disable
Without function (initial condition)
Always (P pos)
With function: Operates when the shift
lever or the selector lever is moved to the
P position.
Always(Lock pos)
With function: Operates when the ignition
switch is moved to the LOCK (OFF)
position.
All Doors Unlock
Without function: The first operation of
keyless entry system or unlock operation
by KOS unlocks all doors (initial condition).
Dr Door Unlock
With function: The first operation of
keyless entry system or unlock operation
by KOS unlocks the driver's door only, and
the second unlock operation within 2
seconds after that unlocks all doors.
30 sec.
30 seconds (initial condition)
60 sec.
60 seconds
120 sec.
120 seconds
180 sec.
180 seconds
Door unlock
mode
Adjustment of the
auto door unlock
function
Adjustment of
power door locks
with selective
unlocking
Timer lock timer Timer lock period
adjustment
Multi mode
Multi-mode keyless Disable
entry function
D/M: O&C
customisation
<Vehicles with
electric retractable
remote controlled
door mirrors>
No function
Door mirror fold/unfold operation only
(initial condition)
KEYLESS OPERATION SYSTEM (KOS)
42B-92
Adjustment
item (M.U.T.-III
display)
ON-VEHICLE SERVICE <OSS-ECU>
Adjusting content
(M.U.T.-III display)
Adjusting content
KOS key detect With/without KOS
out from window key exterior
detection function
<Vehicles with
KOS>
Enable
No function
Disable
With function (initial condition)
KOS feature
Both enable
All KOS functions are enabled (initial
condition).
Door Entry enable
Only door entry function is enabled.
ENG start enable
Only engine starting function is enabled.
Both disable
All KOS functions are disabled.
0 sec.
0 second
3 sec.
3 seconds (Initial condition)
5 sec.
5 seconds
KOS unlock
disable time
Outer buzzer
volume
Adjustment item
KOS function
adjustment
<Vehicles with
KOS>
Adjusts the door
unlock inhibition
period after door
lock is activated.
<Vehicles with
KOS>
Volume adjustment Volume 1
for the KOS outer
Volume 2
buzzer <Vehicles
Volume 3
with KOS>
Quieter than the standard
Standard volume (Initial condition)
Louder than the standard
ON-VEHICLE SERVICE <OSS-ECU>
POWER SUPPLY MODE BY ENGINE SWITCH OPERATION
M1429627000026
When the engine switch is pressed, the power supply
mode changes according to the shift position and
brake pedal operation state.
Shift position
Brake pedal operation
Power supply mode at engine switch operation
P position
Released
Every time the switch is pressed, the power supply mode
changes from OFF to ACC to ON to OFF.
Depressed
While the power supply mode is OFF, the engine is started
when the switch is pressed.
While the power supply mode is ACC, the engine is started
when the switch is pressed.
While the power supply mode is ON, the engine is started
when the switch is pressed.
Other than P
position
Depressed or released
When the switch is pressed after the engine is started, the
power supply mode is turned OFF (the engine stops).
Depressed or released
When the switch is pressed while the power supply mode is
ACC, the power supply mode is turned ON.
When the switch is pressed while the power supply mode is
ON, the power supply mode is turned to ACC.
When the switch is pressed after the engine is started, the
power supply mode is turned to ACC.
KEYLESS OPERATION SYSTEM (KOS)
ON-VEHICLE SERVICE <OSS-ECU>
42B-93
CHECK OF ENGINE SWITCH INDICATOR
FUNCTION
M1429627100023
Check that the engine switch indicator is switched as
follows in each power supply mode and when an
error is detected.
INDICATOR
Power supply mode and at
error detection
Indicator
AC904994AB
INDICATOR
OFF
Extinguished
ACC
Illuminated in orange
ON
Illuminated in green
ON (after engine start)
Extinguished at 3 seconds after the engine is
started
System error
Flashes in orange
Special operation mode *
Flashes in green (when ACC and ON only)
NOTE: *: The special operation mode indicates that
OSS-ECU is brand new.
CHECK OF ENGINE SWITCH REMINDER
BUZZER
M1429620300026
1. With the driver's door kept closed, release the
steering lock, and then turn the power supply
mode to ACC or ON.
2. Open the driver's door.
3. Check that the buzzer sounds normally.
4. If there is a malfunction, troubleshoot the combination meter. (Refer to GROUP 54A − Combination Meter, Trouble Symptom Chart .)
REGISTRATION WHEN REPLACING
OSS-ECU AND ELECTRIC STEERING
LOCK
M1429627200031
CAUTION
• When KOS-ECU is replaced, all the registrations that need to be performed at KOS-ECU
replacement must be completed before the
registration of OSS-ECU and electric steering
lock.
• Be sure to check that the diagnosis code
No.B1157 OSS EEPROM error and No.B1155
ESL EEPROM error are not set. If the diagnosis code No.B1157 "OSS EEPROM error" and
No.B1155 "ESL EEPROM error" are set, the
chassis number cannot be stored in memory
even when it is written. Therefore, when these
diagnosis codes are set, be sure to carry out
the troubleshooting first to repair the trouble,
and then write the chassis number to
OSS-ECU or electric steering lock.
When OSS-ECU or electric steering lock is replaced,
the chassis number needs to be registered to the
replaced ECU.
CHASSIS NUMBER REGISTRATION
PROCEDURE
NOTE: Regardless of which of OSS-ECU or electric
steering lock is replaced, the registration can be performed by executing the same menu selection.
(Even when both OSS-ECU and electric steering
lock were replaced as a set, they can be registered
by performing the registration process only once.)
1. Replace the OSS-ECU or electric steering lock.
KEYLESS OPERATION SYSTEM (KOS)
42B-94
ON-VEHICLE SERVICE <OSS-ECU>
Diagnosis connector
Coding
Chassis No./VIN Writing
Writing status
ECU Name
Chassis No./VIN
Status
Completed
Not completed
Completed
The Chassis No./VIN is written into blank ECU.
(The same Chassis No./VIN as Engine ECU is written.)
Press OK button to execute.
MB992745, MB991910
OK button
AC905138AF
MB992744, MB991824
Chassis No./VIN Writing
Chassis No./VIN Writing will start.
Are you sure?
Caution:
You can write Chassis No./VIN into ECU only once.
OK button Cancel button
MB992747, MB992748, MB991827
ACB05017 AB
AC905139 AC
2. Connect M.U.T.-III to the diagnosis connector.
3. From the system selection screen of M.U.T.-III,
select "OSS".
4. From the OSS function menu screen, select
"Coding".
Chassis No./VIN Writing
Completed.
Coding
Coding
Chassis No./VIN Writing
Chassis No./VIN Information
AC905140AB
Please select function.
AC905137AD
5. From the coding menu screen, select "Chassis
No./VIN Writing."
6. Following the instruction on the screen, press the
OK button to execute the chassis number writing.
(M.U.T. screen above indicates when OSS-ECU
is replaced.)
Coding
Chassis No./VIN Writing
Writing status
ECU Name
Chassis No./VIN
Status
Completed
Completed
Completed
Please confirm the writing result.
AC905141 AE
7. On the writing result confirmation screen, check
that the chassis number is written, and finish the
registration.
8. Operate the engine switch to turn OFF the power
supply.
KEYLESS OPERATION SYSTEM (KOS)
42B-95
KOS-ECU
NOTE: After the M.U.T.-III has executed the chassis number writing, it will turn the engine switch on
forcibly. Therefore, after completion, turn the
engine switch off.
9. Set the driver's door from open to close or from
close to open.
10.Carrying the keyless operation key, perform the
engine switch operation to turn the power from
OFF to ON twice.
11.Check that the OSS-ECU diagnosis code (B1160,
B1164, B1165, B1166 or U1199) is not set, and
finish the registration.
KOS-ECU
REMOVAL AND INSTALLATION
M1429605900407
CAUTION
If KOS-ECU is replaced, refer to ID code registration need judgement table P.42B-88 to complete the
registration of each ID code.
1
ACB05639AB
•
Removal steps
Upper glove box assembly (Refer
to GROUP 52A − Instrument panel
assembly .)
Removal steps (Continued)
• OSS-ECU (Refer to P.42B-100.)
1. KOS-ECU
42B-96
KEYLESS OPERATION SYSTEM (KOS)
OUTSIDE TRANSMISSION ANTENNA ASSEMBLY, INSIDE TRANSMISSION ANTENNA
OUTSIDE TRANSMISSION ANTENNA ASSEMBLY, INSIDE
TRANSMISSION ANTENNA ASSEMBLY
REMOVAL AND INSTALLATION
M1429619300099
AC905335
2
6
1
3
5
4
5.0 ± 2.0 N·m
ACB05641AB
•
1.
Outside transmission antenna
assembly (driver’s side)
removal steps
Centre pillar trim upper (LH)
(Refer to GROUP 52A − Interior
Trim .)
Outside transmission antenna
assembly (driver’s side)
•
2.
Outside transmission antenna
assembly (passenger’s side)
removal steps
Centre pillar trim upper (RH)
(Refer to GROUP 52A − Interior
Trim .)
Outside transmission antenna
assembly (passenger’s side)
KEYLESS OPERATION SYSTEM (KOS)
42B-97
OUTSIDE TRANSMISSION ANTENNA ASSEMBLY, INSIDE TRANSMISSION ANTENNA ASSEMBLY
•
3.
•
4.
•
5.
•
6.
Outside transmission antenna
assembly (tailgate) removal
steps
Rear bumper assembly (Refer to
GROUP 51 − Rear Bumper
Assembly ).
Outside transmission antenna
assembly (tailgate)
Buzzer removal steps
Rear bumper assembly (Refer to
GROUP 51 − Rear Bumper
Assembly ).
Buzzer
Inside transmission antenna
assembly (front) removal
steps
Shift lever panel assembly
(Refer to GROUP 52A − Front
Floor Console Assembly .)
Inside transmission antenna
assembly (front)
Inside transmission antenna
assembly (rear) removal
steps
Quarter trim tray (Refer to
GROUP 52A − Interior Trim .)
Inside transmission antenna
assembly (rear)
KEYLESS OPERATION SYSTEM (KOS)
42B-98
KEYLESS OPERATION KEY
KEYLESS OPERATION KEY
DISASSEMBLY AND REASSEMBLY
M1429604000285
Post-installation operation
Operation check of the keyless operation key
1
4
3
2
5
AC702707AD
<<A>>
<<B>>
<<B>>
<<B>>
<<B>>
>>A<<
1.
2.
3.
4.
5.
Disassembly steps
Emergency key
Upper cover
Transmitter assembly
Battery
Lower cover
DISASSEMBLY SERVICE POINTS
<<A>> EMERGENCY KEY REMOVAL
Move the lever on the lower cover to the direction
shown by the arrow to remove the emergency key
from the keyless operation key.
<<B>> UPPER COVER/TRANSMITTER
ASSEMBLY/BATTERY/LOWER COVER
REMOVAL
Upper cover
Emergency key
Lever
Lower cover
AC609036 AC
Flat-tipped screwdriver
AC609037AC
Set a flat-tipped screwdriver wrapped with protective
tape as shown in the figure, and pry off the keyless
operation key.
KEYLESS OPERATION SYSTEM (KOS)
42B-99
KEY SLOT
REASSEMBLY SERVICE POINT
>>A<< BATTERY INSTALLATION
Install a battery with the positive side facing toward
the lower cover.
Replacement battery: Coin-type lithium battery CR2032
Lower cover
–
+
Battery
Transmitter assembly
AC609035
AC609442 AC
KEY SLOT
REMOVAL AND INSTALLATION
M1429620700035
1
ACB05707AB
KEYLESS OPERATION SYSTEM (KOS)
42B-100
OSS-ECU
Removal steps
Centre lower box assembly (Refer to
GROUP 52A − Instrument panel
assembly .)
1. Key slot
•
INSPECTION
M1429620800032
KEY SLOT INSPECTION
AC905044AB
Terminal number
Normal value
1−2
12 ± 4 Ω
OSS-ECU
REMOVAL AND INSTALLATION
M1429625900034
CAUTION
When the OSS-ECU is replaced, be sure to complete the registration of chassis number. (Refer to
P.42B-93.)
1
ACB05640 AB
KEYLESS OPERATION SYSTEM (KOS)
42B-101
ENGINE SWITCH
Removal steps
Upper glove box assembly (Refer
to GROUP 52A − Instrument panel
assembly .)
1. OSS-ECU
•
>>A<<
INSTALLATION SERVICE POINT
>>A<< OSS-ECU INSTALLATION
When the OSS-ECU is replaced, the mode is shifted
to the special operation mode, and the system works
as follows:
• When the engine switch is pressed, the power
supply mode of the vehicle changes without key
certification.
• The lock/unlock control of the electric steering
lock is not performed.
• The engine cannot be started.
• While turning the vehicle power on, the LED of
the engine switch flashes in green.
• After the OSS-related devices including
OSS-ECU are registered and engine start is possible, the special operation mode will be cancelled automatically by operating the engine
switch.
• Check that the special operation mode cancellation is completed by checking the diagnosis code,
by checking whether the engine switch LED is
flashing or not, and by checking whether the
engine can be started or not.
ENGINE SWITCH
REMOVAL AND INSTALLATION
M1429625600033
1
2
ACB05708AB
Removal steps
1. Combination meter bezel (Refer to
GROUP 54A − Combination meter
.)
2. Engine switch
INSPECTION
M1429625700041
AC904993AE
KEYLESS OPERATION SYSTEM (KOS)
42B-102
ELECTRIC STEERING LOCK
Switch operation
Terminal
number
Normal
value
Switch operation
Terminal
number
Normal
value
Press
6−2
Continuity
exists (2 Ω or
less)
Release
6−2
No continuity
10 − 4
10 − 4
ELECTRIC STEERING LOCK
REMOVAL AND INSTALLATION
M1429628100015
CAUTION
When the electric steering lock is replaced, be sure to complete the registration of chassis
number.(Refer to P.42B-93.)
Refer to GROUP 37 − Disassembly and Assembly of
Steering Shaft .
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