Nissan Murano Z51. Manual — part 1495
WCS
DIAGNOSIS SYSTEM (BCM)
WCS-21
< SYSTEM DESCRIPTION >
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ACTIVE TEST
Display item
[Unit]
Description
PUSH SW
[On/Off]
Status of push button ignition switch judged by BCM.
UNLK SEN-DR
[On/Off]
Status of unlock sensor judged by BCM.
VEH SPEED 1
[Km/h]
Value of vehicle speed signal received from ABS actuator and electric unit (control unit) with CAN
communication line.
KEY SW-SLOT
[On/Off]
Status of key slot judged by BCM.
TAIL LAMP SW
[On/Off]
Status of each switch judged by BCM using the combination switch readout function.
FR FOG SW
[On/Off]
Status of front fog lamp switch judged by BCM.
DOOR SW-DR
[On/Off]
Status of driver side door switch judged by BCM.
Display item
[Unit]
Description
IGN KEY WARN ALM
The key warning chime operation can be checked by operating the relevant function (On/Off).
SEAT BELT WARN TEST
The seat belt warning chime operation can be checked by operating the relevant function (On/Off).
ID REGIST WARNING
The ID regist warning chime operation can be checked by operating the relevant function (On/Off).
LIGHT WARN ALM
The light warning chime operation can be checked by operating the relevant function (On/Off).
WCS-22
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
COMBINATION METER
COMBINATION METER : Diagnosis Procedure
INFOID:0000000005688795
1.
CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between combination meter harness connector terminals and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between combination meter and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect combination meter connector.
3.
Check continuity between combination meter harness connector terminals and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
BCM (BODY CONTROL MODULE)
BCM (BODY CONTROL MODULE) : Diagnosis Procedure
INFOID:0000000005688797
1.
CHECK FUSE AND FUSIBLE LINK
Check that the following fuse and fusible link are not blown.
Power source
Fuse No.
Battery
11
Ignition switch ON or START
4
Terminals
Ignition switch po-
sition
Voltage
(Approx.)
(+)
(-)
Combination meter
Ground
Connector
Terminal
M34
1
OFF
Battery voltage
2
ON
Terminals
Continuity
(+)
(-)
Combination meter
Ground
Connector
Terminal
M34
3
Existed
23
WCS
POWER SUPPLY AND GROUND CIRCUIT
WCS-23
< DTC/CIRCUIT DIAGNOSIS >
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Is the fuse fusing?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is
blown.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM connectors.
3.
Check voltage between BCM harness connector and ground.
Is the measurement value normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
Signal name
Fuse and fusible link No.
Battery power supply
L
10
Terminals
Voltage
(Approx.)
(+)
(
−
)
BCM
Ground
Connector
Terminal
M118
1
Battery voltage
M119
11
BCM
Ground
Continuity
Connector
Terminal
M119
13
Existed
WCS-24
< DTC/CIRCUIT DIAGNOSIS >
METER BUZZER CIRCUIT
METER BUZZER CIRCUIT
Description
INFOID:0000000005524990
• The buzzer for warning chime system is installed in the combination meter.
• The combination meter sounds the alarm buzzer based on the signals transmitted from various units.
Component Function Check
INFOID:0000000005524991
1.
CHECK OPERATION OF METER BUZZER
1.
Select “BUZZER” of “BCM” on CONSULT-III.
2.
Perform “LIGHT WARN ALM” of “Active Test”.
Does meter buzzer beep?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
CHECK COMBINATION METER INPUT SIGNAL
Select the “Data Monitor” for the “METER/M&A” and check the “BUZZER” monitor value.
Is the inspection result normal?
YES
>> Replace combination meter.
NO
>> Replace BCM. Refer to
BCS-95, "Removal and Installation"
Diagnosis Procedure
INFOID:0000000005524992
1.
CHECK POWER SUPPLY OF COMBINATION METER
Check power supply of combination meter. Refer to
MWI-43, "COMBINATION METER : Diagnosis Proce-
.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair power supply circuit of combination meter. Refer to
BUZZER
Under the condition of buzzer input
: On
Except above
: Off
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