BCM (BODY CONTROL MODULE): Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM - COUPE " or "WIRING DIAGRAM - SEDAN ".

1. CHECK FUSE AND FUSIBLE LINK

   Check if the following BCM fuse or fusible link are blown.

   Terminal No.	Signal name	Fuse and fusible link No.
   1	Battery power supply	H
   11		10

   Is the fuse or fusible link blown? 

   YES: Replace the blown fuse or fusible link after repairing the affected circuit.

   NO: GO TO 2

2. CHECK POWER SUPPLY CIRCUIT
   1. Turn ignition switch OFF.
   2. Disconnect BCM.
   3. Check voltage between BCM harness connector and ground.

      Terminals			Voltage (Approx.)
      (+)		(-)
      BCM		Ground
      Connector	Terminal
      M16	1		Battery voltage
      M17	11

      Fig 1: Checking Power Supply Circuit

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the measurement normal? 

      YES: GO TO 3

      NO: Repair or replace harness.

3. CHECK GROUND CIRCUIT

   Check continuity between BCM harness connector and ground.

   BCM		Ground	Continuity
   Connector	Terminal
   M17	13		Yes

   Fig 2: Checking Ground Circuit

   Courtesy of NISSAN NORTH AMERICA, INC.

   Does continuity exist? 

   YES: Inspection End.

   NO: Repair or replace harness.