With Intelligent Key System

COMBINATION SWITCH INPUT CIRCUIT





Diagnosis Procedure
1.CHECK INPUT 1 - 5 CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect BCM and combination switch connectors.
3. Check continuity between BCM harness connector and combination switch harness connector.





Does continuity exist?
YES - GO TO 2.
NO - Repair harnesses or connectors.
2.CHECK INPUT 1 - 5 CIRCUIT FOR SHORT
Check for continuity between BCM harness connector and ground.





Does continuity exist?
YES - Repair harnesses or connectors.
NO - GO TO 3.
3.CHECK BCM INPUT SIGNAL
1. Connect BCM and combination switch connectors.
2. Turn ON any switch in the system that is malfunction.
3. Check voltage between BCM harness connector and ground.





Is the measurement value normal?
Yes - Replace BCM. Removal And Installation With Intelligent Key System.
No - Replace combination switch.