Nissan Murano. Instruction — part 377
BACK DOOR REQUEST SWITCH
DLK-119
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
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DLK
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BACK DOOR REQUEST SWITCH
Description
INFOID:0000000009719022
Transmits lock/unlock operation to BCM.
Component Function Check
INFOID:0000000009719023
1.
CHECK FUNCTION
Check back door request switch (“REQ SW -BD/TR ”) in Data Monitor mode.
Is the inspection result normal?
YES
>> Back door request switch is OK.
NO
>> Refer to
DLK-119, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000009719024
1.
CHECK BCM OUTPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect back door opener switch assembly.
3.
Check voltage between back door opener switch assembly harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK BACK DOOR REQUEST SWITCH CIRCUIT
1.
Disconnect BCM connector.
2.
Check continuity between BCM harness connector and back door opener switch assembly harness con-
nector.
3.
Check continuity between BCM harness connector and ground.
Is the inspection result normal?
Monitor item
Condition
REQ SW -BD/TR
Back door request switch is pressed: ON
Back door request switch is released: OFF
(+)
(–)
Voltage (V)
(Approx.)
Back door opener switch assembly
Connector
Terminal
D186
4
Ground
JPMIA0016GB
BCM
Back door opener switch assembly
Continuity
Connector
Terminal
Connector
Terminal
M121
61
D186
4
Existed
BCM
Ground
Continuity
Connector
Terminal
M121
61
Not existed
DLK-120
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
BACK DOOR REQUEST SWITCH
YES
>> Replace BCM. Refer to
NO
>> Repair harness or connector.
3.
CHECK BACK DOOR REQUEST SWITCH GROUND CIRCUIT
Check continuity between back door opener switch assembly harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace back door request switch ground circuit.
4.
CHECK BACK DOOR REQUEST SWITCH
DLK-120, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace back door opener switch assembly. Refer to
DLK-365, "Removal and Installation"
.
5.
CHECK INTERMITTENT INCIDENT
GI-44, "Intermittent Incident"
>> INSPECTION END
Component Inspection
INFOID:0000000009719025
1.
CHECK BACK DOOR REQUEST SWITCH
Check back door opener switch assembly terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace back door opener switch assembly. Refer to
DLK-365, "Removal and Installation"
.
Back door opener switch assembly
Ground
Continuity
Connector
Terminal
D186
3
Existed
Back door opener switch assembly
Back door request switch condition
Continuity
Terminal
3
4
Pressed
Existed
Released
Not existed
UNLOCK SENSOR
DLK-121
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
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UNLOCK SENSOR
Description
INFOID:0000000009719026
Detects door lock condition of driver door.
Component Function Check
INFOID:0000000009719027
1.
CHECK FUNCTION
Check unlock sensor (“DOOR STAT-DR”) in “Data Monitor” mode.
Is the inspection result normal?
YES
>> Unlock sensor is OK.
NO
>> Refer to
DLK-121, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000009719028
1.
CHECK BCM OUTPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect front door lock assembly (driver side) connector.
3.
Check signal between front door lock assembly (driver side) harness connector and ground with oscillo-
scope.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK UNLOCK SENSOR CIRCUIT
1.
Disconnect BCM connector.
2.
Check continuity between BCM harness connector and front door lock assembly (driver side) harness
connector.
3.
Check continuity between BCM harness connector and ground.
Monitor item
Condition
DOOR STAT-DR
Front door lock (driver side) LOCK: OFF
Front door lock (driver side) UNLOCK: ON
(+)
(–)
Voltage (V)
(Approx.)
Front door lock assembly (driver side)
Connector
Terminal
D9
3
Ground
JPMIA0012GB
BCM
Front door lock assembly (driver side)
Continuity
Connector
Terminal
Connector
Terminal
M123
119
D9
3
Existed
BCM
Ground
Continuity
Connector
Terminal
M123
119
Not existed
DLK-122
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
UNLOCK SENSOR
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-98, "Removal and Installation"
NO
>> Repair harness or connector.
3.
CHECK UNLOCK SENSOR GROUND CIRCUIT
Check continuity between front door lock assembly (driver side) harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace front door lock assembly (driver side) ground circuit.
4.
CHECK UNLOCK SENSOR
DLK-122, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace front door lock assembly (driver side). Refer to
DLK-340, "DOOR LOCK : Removal and
5.
CHECK INTERMITTENT INCIDENT
GI-44, "Intermittent Incident"
>> INSPECTION END
Component Inspection
INFOID:0000000009719029
1.
CHECK UNLOCK SENSOR
1.
Turn ignition switch OFF.
2.
Disconnect front door lock assembly (driver side).
3.
Check front door lock assembly terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace front lock assembly (driver side). Refer to
DLK-340, "DOOR LOCK : Removal and Instal-
.
Front door lock assembly (driver side)
Ground
Continuity
Connector
Terminal
D9
4
Existed
Front door lock assembly (driver side)
Front door lock assembly (driver side) condition
Continuity
Terminal
3
4
Unlock
Existed
Lock
Not existed
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