Front Door Lock Assembly LH (Actuator) Check

1. Turn ignition switch OFF.
2. Disconnect BCM and front door lock assembly LH (actuator).
3. Check continuity between BCM connector M19 terminals 44, 50 and front door lock assembly LH (actuator) connector D14 terminals 2, 3.
   TERMINALS CONTINUITY REFERENCE
   
   

   Connector	Terminals	Connector	Terminals	Continuity
   M19	44	D14	2	Yes
   	50		3	Yes

4. Check continuity between BCM connector M19 terminals 44, 50 and body ground.
   TERMINALS CONTINUITY REFERENCE
   
   

   Connector	Terminals		Continuity
   M19	44	Ground	No
   	50		No

   Fig 1: Identifying Continuity Between BCM Connector Terminals And Front Door Lock Assembly LH Connector Terminals

   Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK: Go to 2.

NG: Repair or replace harness.

1. Reconnect BCM.
2. Check voltage between BCM connector M19 terminals 44, 50 and ground.
   TERMINALS VOLTAGE REFERENCE
   
   

   Connector	Terminals		Condition	Voltage (V) (Approx.)
   	(+)	(-)
   M19	44	Ground	Driver door lock/unlock switch is turned to UNLOCK	0 --> Battery voltage for 300 ms
   	50		Driver door lock/unlock switch is turned to LOCK	0 --> Battery voltage for 300 ms

   Fig 2: Identifying Voltage Between BCM Connector M19 Terminals 44, 50 And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK: Replace front door lock assembly LH (actuator). Refer to "REMOVAL AND INSTALLATION ".

NG: Replace BCM. Refer to "REMOVAL AND INSTALLATION OF BCM ".