BCM

POWER SUPPLY AND GROUND CIRCUIT


BCM : Diagnosis Procedure

With Intelligent Key
1.CHECK FUSE AND FUSIBLE LINK
1.Turn ignition switch OFF.
2.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. Disconnect BCM connectors.
2. Check voltage between BCM harness connector and ground.





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





Is the inspection result normal?
YES - INSPECTION END
NO - Repair or replace harness or connector.

Without Intelligent Key
1.CHECK FUSE AND FUSIBLE LINK
1.Turn ignition switch OFF.
2.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. Disconnect BCM connectors.
2. Check voltage between BCM harness connector and ground.





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





Is the inspection result normal?
YES - INSPECTION END
NO - Repair or replace harness or connector.