REAR LH: Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM - WITH INTELLIGENT KEY SYSTEM ".

1. CHECK DOOR LOCK ACTUATOR SIGNAL 
   1. Turn ignition switch OFF.
   2. Check voltage between BCM connector M20 terminals 65, 66 and ground.

      Connector	Terminals		Condition	Voltage (V) (Approx.)
      	(+)	(-)
      M20	65	Ground	Door lock/unlock switch is turned to LOCK	0 → Battery voltage for 300 ms
      	66		Door lock/unlock switch is turned to UNLOCK	0 → Battery voltage for 300 ms

      Fig 1: Checking Door Lock Actuator Signal Voltage

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: GO TO 2

      NO: GO TO  3

2. CHECK DOOR LOCK ACTUATOR HARNESS 
   1. Disconnect BCM and rear door lock actuator LH.
   2. Check continuity between BCM connector (A) M20 terminals 65, 66 and rear door lock actuator LH connector (B) D205 terminals 2, 3.

      Terminals		Continuity
      65	3	Yes
      66	2	Yes

      Fig 2: Checking Door Lock Actuator Harness Continuity

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: Replace rear door lock actuator LH.

      NO: Repair or replace harness or passenger select unlock relay.

3. CHECK DOOR LOCK ACTUATOR HARNESS 
   1. Disconnect BCM and each door lock actuator.
   2. Check continuity between BCM connector M20 terminals 65, 66 and ground.

      Terminals		Continuity
      65	Ground	No
      66		No

      Fig 3: Checking Door Lock Actuator Harness Continuity

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

      NO: Repair or replace harness or passenger select unlock relay.