Diagnosis Procedure

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

1. CHECK FUSE
   
   

   Check that the following fuse is not blown.

   Terminal No.	Signal name	Fuse No.
   161	BCM power supply	7 (10A)

   Is the fuse blown?

   YES 

   Replace the blown fuse after repairing the affected circuit.

   NO 

   GO TO STEP 2  .

2. CHECK POWER SUPPLY CIRCUIT
   
   
   1. Disconnect BCM connector M20.
   2. Check voltage between BCM connector M20 and ground.

      BCM		Ground	Voltage (Approx.)
      Connector	Terminal
      M20	161	-	Battery voltage

   Is the inspection result normal?

   YES 

   GO TO STEP 3  .

   NO 

   Repair or replace harness or connectors.

3. CHECK GROUND CIRCUIT
   
   

   Check continuity between BCM connector M20 and ground.

   BCM		Ground	Continuity
   Connector	Terminal
   M20	170	-	Yes
   	171

   Is the inspection result normal?

   YES 

   Inspection End.

   NO 

   Repair or replace harness or connectors.