Diagnosis Procedure

1. Turn ignition switch OFF.
2. Disconnect back door lock assembly connector.
3. Check signal between back door lock assembly harness connector and ground using oscilloscope.

   (+)		(-)	Signal (Reference value)
   Back door lock assembly
   Connector	Terminal
   D157	7	Ground	Courtesy of NISSAN NORTH AMERICA, INC. 9.0 - 10.0 V

Is the inspection result normal?

YES 

GO TO STEP 3  .

NO 

GO TO STEP 2  .

1. Disconnect BCM connector.
2. Check continuity between back door lock assembly harness connector and BCM harness connector.

   Back door lock assembly		BCM		Continuity
   Connector	Terminal	Connector	Terminal
   D157	7	M69	43	Existed

3. Check continuity between back door lock assembly harness connector and ground.

   Back door lock assembly		Ground	Continuity
   Connector	Terminal
   D157	7		Not existed

Is the inspection result normal?

YES 

Replace BCM. Refer to REMOVAL AND INSTALLATION .

NO 

Repair or replace harness.

Check continuity between back door lock assembly harness connector and ground.

Is the inspection result normal?

YES 

GO TO STEP 4  .

NO 

Repair or replace harness.

Refer to COMPONENT INSPECTION .

Is the inspection result normal?

YES 

GO TO STEP 5  .

NO 

Replace back door lock assembly.

Refer to INTERMITTENT INCIDENT .

INSPECTION END