Diagnosis Procedure

1. Turn Ignition Switch OFF.
2. Disconnect malfunctioning door switch connector.
3. Check signal between malfunctioning door switch harness connector and ground with oscilloscope.

   (+)			(-)	Signal (Reference value)
   Door switch
   Connector		Terminal
   Front LH	B16	2	Ground	Courtesy of NISSAN NORTH AMERICA, INC.
   Front RH	B216			Courtesy of NISSAN NORTH AMERICA, INC.
   Rear LH	B23			Courtesy of NISSAN NORTH AMERICA, INC.
   Rear RH	B223			Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES

GO TO 3.

NO

GO TO 2.

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

   BCM		Door switch		Continuity
   Connector	Terminal	Connector	Terminal
   M121	47	B16 (Front LH)	2	Existed
   	45	B216 (Front RH)
   	48	B23 (Rear LH)
   	46	B223 (Rear RH)

3. Check continuity between BCM harness connector and ground.

   BCM		Ground	Continuity
   Connector	Terminal
   M121	47		Not existed
   	45
   	48
   	46

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 4.

NO

Replace malfunctioning door switch.

Refer to Intermittent Incident .

INSPECTION END