BCM

POWER SUPPLY AND GROUND CIRCUIT


BCM : Diagnosis Procedure

Regarding Wiring Diagram information, Electrical Diagrams.
1. CHECK FUSES AND FUSIBLE LINK
Check that the following fuses and fusible link are not blown.





Is the fuse 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 value 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.