Diagnosis Procedure

Check voltage between BCM connector and ground.

Fig 1: Checking Voltage Between BCM Connector Terminals 12, 47 And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

Is the measurement value within the specification? 

YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

No: GO TO 2

1. Turn ignition switch OFF.
2. Disconnect BCM and front door switch.
3. Check continuity between BCM connector and front door switch connector.
   CONNECTOR TERMINAL CONTINUITY CHART
   
   

   BCM connector	Terminal	Front door switch connector	Terminal	Continuity
   M18	12	RH: B108	2	Yes
   M19	47	LH: B8

4. Check continuity between front door switch connector and ground.
   Fig 2: Checking Continuity Between BCM Connector Terminals 12, 47 And Front Door Switch Connector Terminal 2

   Courtesy of NISSAN MOTOR CO., U.S.A.
   CONNECTOR TERMINAL CONTINUITY CHART
   
   

   Front door switch connector	Terminal	Ground	Continuity
   B8 (LH)	2		No
   B108 (RH)

   Is the inspection result normal? 

   YES: GO TO 3

   No: Repair or replace harness.

1. Connect BCM connector.
2. Check voltage between BCM connector and ground.
   CONNECTOR TERMINAL VOLTAGE CHART
   
   

   Terminal			Voltage (V) (Approx.)
   (+)		(-)
   BCM connector	Terminal
   M18	12	Ground	Battery voltage
   M19	47

   Fig 3: Checking Voltage Between BCM Connector Terminals 12, 47 And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.

   Is the measurement value within the specification? 

   YES: GO TO 4

   No: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

Check front door switch.

Refer to "COMPONENT INSPECTION ".

Is the inspection result normal? 

YES: Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".

No: Replace front door switch.