Diagnosis Procedure

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

1. CHECK DOOR SWITCH INPUT SIGNAL
   
   
   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
      Front door switch LH	B8	3	Ground	Courtesy of NISSAN NORTH AMERICA, INC. 7.0 - 8.0 V
      Front door switch RH	B16	3

   Is the inspection result normal?

   YES 

   GO TO STEP 3  .

   NO 

   GO TO STEP 2  .

2. CHECK DOOR SWITCH CIRCUIT
   
   
   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 door switch LH	B8	3	M100	47	Yes
      Front door switch RH	B16			45

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

      Door switch			Ground	Continuity
      Connector		Terminal
      Front door switch LH	B8	3		No
      Front door switch RH	B16

   Is the inspection result normal?

   YES 

   Replace BCM. Refer to REMOVAL AND INSTALLATION .

   NO 

   Repair or replace harness.

3. CHECK DOOR SWITCH
   
   

   Refer to COMPONENT INSPECTION .

   Is the inspection result normal?

   YES 

   GO TO STEP 4  .

   NO 

   Replace malfunctioning door switch. Refer to REMOVAL AND INSTALLATION .

4. CHECK INTERMITTENT INCIDENT
   
   

   Refer to INTERMITTENT INCIDENT .

   Inspection End.