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POWER SUPPLY AND GROUND CIRCUIT

BCM : Diagnosis Procedure


1. CHECK FUSES AND FUSIBLE LINK

1.Turn ignition switch OFF.
2.Check that the following fuses and fusible link are not fusing.










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.

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.