Nissan Murano. Manual - part 377

BACK DOOR REQUEST SWITCH

DLK-119

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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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 

BCS-98, "Exploded View"

.

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

Refer to 

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

Refer to 

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 

Refer to 

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

Installation"

.

5.

CHECK INTERMITTENT INCIDENT 

Refer to 

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-

lation"

.

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