1. Turn ignition switch OFF.
2. Disconnect front door lock assembly (passenger side).
3. Check voltage between front door lock assembly (passenger side) harness connector and ground.

(+)		(–)	Condition		Voltage (V) (Approx.)
Front door lock assembly (passenger side)
Connector	Terminal
D48	1	Ground	Door lock and unlock switch	LOCK	0 → Battery voltage → 0
	3			UNLOCK	0 → Battery voltage → 0

YES>>Replace front door lock assembly (passenger side). Refer to Removal and Installation (GT-R certified NISSAN dealer).

NO>>GO TO 2.

1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and front door lock assembly (passenger side) harness connector.
   

   BCM		Front door lock assembly (passenger side)		Continuity
   Connector	Terminal	Connector	Terminal
   M119	5	D45	3	Existed
   	8		1

   
   
3. Check continuity between BCM harness connector and ground.
   

   BCM		Ground	Continuity
   Connector	Terminal
   M119	5		Not existed
   	8

   
   

YES>>Replace BCM. Refer to Removal and Installation.

NO>>Repair or replace harness.