Power Distribution System

POWER SUPPLY AND GROUND CIRCUIT


BCM : Diagnosis Procedure

1. CHECK FUSE AND FUSIBLE LINK
Check if the following BCM fuse or fusible link are blown.





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.






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.





Does continuity exist?
YES - Inspection End.
NO - Repair or replace harness.