Power Supply And Ground Circuit

POWER SUPPLY AND GROUND CIRCUIT


Diagnosis Procedure

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.