Diagnosis Procedure

POWER SUPPLY AND GROUND CIRCUIT


BCM (BODY CONTROL MODULE) BCM (BODY CONTROL MODULE) : Diagnosis Procedure

1.CHECK FUSE AND FUSIBLE LINK
Check that the following fuse and fusible link are not blown.





Is the fuse fusing?
YES - Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is blown.
NO - GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connectors.
3. Check voltage between BCM harness connector and ground.





Is the measurement value normal?
YES - GO TO 3.
NO - Repair harness or connector.
3.CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.





Does continuity exist?
YES - INSPECTION END
NO - Repair harness or connector.