BCM (BODY CONTROL MODULE): Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

1. CHECK FUSE AND FUSIBLE LINK 

   Check that the following fuse and fusible link are not blown.

   Terminal No.	Signal name	Fuse and fusible link No.
   139	Fusible link battery power	O (40A)
   131	BCM battery fuse	1 (10A)

   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. Disconnect BCM connector M81.
   2. Check voltage between BCM connector M81 terminals 131, 139 and ground.

      BCM		Ground	Voltage (Approx.)
      Connector	Terminal
      M81	131	-	Battery voltage
      	139

      Is the inspection result normal? 

      YES: GO TO 3

      NO: Repair or replace harness or connectors.

3. CHECK GROUND CIRCUIT 

   Check continuity between BCM connector M81 terminals 134, 143 and ground.

   BCM		Ground	Continuity
   Connector	Terminal
   M81	134	-	Yes
   	143

   Is the inspection result normal? 

   YES: Inspection End.

   NO: Repair or replace harness or connectors.