Diagnosis Procedure

1. Turn ignition switch OFF.
2. Check signal between BCM connector and ground with oscilloscope.

Terminals			Door condition		Voltage (V) (Approx.)
(+)		(-)
BCM connector	Terminal
M123	150	Ground	Driver side	OPEN	0
				CLOSE	Courtesy of NISSAN MOTOR CO., U.S.A.
	124		Passenger side	OPEN	0
				CLOSE	Courtesy of NISSAN MOTOR CO., U.S.A.
M121	68		Rear RH	OPEN	0
				CLOSE	Courtesy of NISSAN MOTOR CO., U.S.A.
	69		Rear LH	OPEN	0
				CLOSE	Courtesy of NISSAN MOTOR CO., U.S.A.

Is the inspection result normal? 

YES: GO TO  4.

NO: GO TO  2.

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

   BCM connector	Terminal	Door switch connector	Terminal	Continuity
   M123	150	B16 (Driver side)	2	Existed
   	124	B216 (Passenger side)
   M121	68	B223 (Rear RH)
   	69	B23 (Rear LH)

3. Check continuity between BCM connector and ground.
   CONTINUITY SPECIFICATION
   
   

   BCM connector	Terminal	Ground	Continuity
   M123	150		Not existed
   	124
   M121	68
   	69

   Is the inspection result normal? 

   YES: GO TO  3.

   NO: Repair or replace harness between BCM and door switch.

Refer to "COMPONENT INSPECTION ".

Is the inspection result normal? 

YES: GO TO  4.

NO: Replace malfunctioning door switch. Refer to "REMOVAL AND INSTALLATION ".

Refer to INTERMITTENT INCIDENT .

INSPECTION END