Nissan Murano: Power Supply and Ground Circuit / Main Power Window and Door Lock/unlock Switch

Diagnosis Procedure

CHECK POWER SUPPLY

1. Ignition switch OFF.

2. Disconnect main power window and door lock/unlock switch connectors.

3. Ignition switch ON.

4. Check voltage between main power window and door lock/unlock switch harness connectors and ground.

   (+)		(–)	Voltage (Approx.)
   Main power window and door lock/unlock switch
   Connector	Terminal
   D7	10	Ground	Battery voltage
   D8	18

Is the inspection result normal?

GO TO 3.

GO TO 2.

CHECK POWER SUPPLY CIRCUIT

1. Ignition switch OFF.

2. Disconnect BCM connector.

3. Check continuity between BCM harness connector and main power window and door lock/unlock switch harness connectors.

   BCM		Main power window and door lock/unlock switch		Continuity
   Connector	Terminal	Connector	Terminal
   M81	140	D7	10	Yes
   	141	D8	18

4. Check continuity between BCM harness connector and ground.

   BCM		Ground	Continuity
   Connector	Terminal
   M81	140		No
   	141

Is the inspection result normal?

Replace BCM. Refer to Removal and Installation.

Repair or replace harness.

CHECK GROUND CIRCUIT

1. Ignition switch OFF.

2. Check continuity between main power window and door lock/unlock switch harness connector and ground.

   Main power window and door lock/unlock switch		Ground	Continuity
   Connector	Terminal
   D7	1		Yes

Is the inspection result normal?

GO TO 4.

Repair or replace harness.

CHECK INTERMITTENT INCIDENT

Refer to Intermittent Incident.

Inspection End.