Diagnosis Procedure

1. 1. 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
      Front LH	M181	3	Ground	Courtesy of NISSAN NORTH AMERICA, INC. 7.0 - 8.0 V
      Front RH	M182
      Rear LH	M184
      Rear RH	M183

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

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

      Door switch			BCM		Continuity
      Connector		Terminal	Connector	Terminal
      Front LH	M181	3	M304	57	Yes
      Front RH	M182			53
      Rear LH	M184			52
      Rear RH	M183			50

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

      Door switch			Ground	Continuity
      Connector		Terminal
      Front LH	M181	3		No
      Front RH	M182
      Rear LH	M184
      Rear RH	M183

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation .

NO>>

Repair or replace harness.

1. Refer to Component Inspection .

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Replace malfunctioning door switch. Refer to Removal and Installation .

1. Refer to Intermittent Incident .

>>

Inspection End.