Power Supply and Ground Circuit Check

Power Supply and Ground Circuit Check [BCM]

Regarding Wiring Diagram information, refer to [BCM: Wiring Diagram] [1][2]Body Control Module.

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.