Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Titan XD and 2018 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.

CHECK POWER SUPPLY

Turn ignition switch OFF.
Disconnect main power window and door lock/unlock switch connectors.
Turn ignition switch ON.

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

With Crew Cab

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

Except Crew Cab

(+)		(-)	Voltage (Approx.)
Main power window and door lock/unlock switch
Connector	Terminal
D5	8	Ground	Battery voltage
	14

Is the inspection result normal?

YES

GO TO 3 .

GO TO 2 .

CHECK POWER SUPPLY CIRCUIT

Turn ignition switch OFF.
Disconnect BCM connector.

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

With Crew Cab

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

Except Crew Cab

BCM		Main power window and door lock/unlock switch		Continuity
Connector	Terminal	Connector	Terminal
M81	140	D5	8	Yes
	141		14

Check continuity between BCM harness connector and ground.

BCM		Ground	Continuity
Connector	Terminal
M81	140		No
	141

Is the inspection result normal?

YES

Replace BCM. Refer to Removal and Installation .

Repair or replace harness.

CHECK GROUND CIRCUIT

Turn ignition switch OFF.

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

With Crew Cab

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

Except Crew Cab

Main power window and door lock/unlock switch		Ground	Continuity
Connector	Terminal
D5	12		Yes

Is the inspection result normal?

YES

GO TO 4 .

Repair or replace harness.

CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident .

Inspection End.