Initial Inspection and Diagnostic Overview

POWER SUPPLY AND GROUND CIRCUIT

BCM : 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.