Diagnosis Procedure

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

   (+)			(-)	Signal (Reference value)
   Door switch
   Connector		Terminal
   Driver side	B93	3	Ground	Courtesy of NISSAN NORTH AMERICA, INC. 7.0 - 8.0 V
   Passenger side	B94
   Rear LH	B92
   Rear RH	B91

Is the inspection result normal?

YES 

GO TO STEP 3  .

NO 

GO TO STEP 2  .

1. Disconnect BCM connector.
2. Check continuity between door switch harness connector and BCM harness connector.

   Door switch			BCM		Continuity
   Connector		Terminal	Connector	Terminal
   Driver side	B93	3	M69	47	Existed
   Passenger side	B94			45
   Rear LH	B92			48
   Rear RH	B91			46

3. Check continuity between door switch harness connector and ground.

   Door switch			Ground	Continuity
   Connector		Terminal
   Driver side	B93	3		Not existed
   Passenger side	B94
   Rear LH	B92
   Rear RH	B91

Is the inspection result normal?

YES 

Replace BCM. Refer to REMOVAL AND INSTALLATION .

NO 

Repair or replace harness.

Refer to COMPONENT INSPECTION .

Is the inspection result normal?

YES 

GO TO STEP 4  .

NO 

Replace malfunctioning door switch.

Refer to INTERMITTENT INCIDENT .

INSPECTION END