Initial Inspection and Diagnostic Overview

POWER SUPPLY AND GROUND CIRCUIT


BCM : Diagnosis Procedure

Regarding Wiring Diagram information, refer to Coupe or Sedan.
1. CHECK FUSE AND FUSIBLE LINK
Check if the following BCM fuse or fusible link are blown.





Is the fuse or fusible link 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 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.