Combination Switch Output Circuit

COMBINATION SWITCH OUTPUT CIRCUIT

Diagnosis Procedure


1. CHECK OUTPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN

1.Turn the ignition switch OFF.
2.Disconnect the BCM and combination switch connectors.
NOTE:
BCM connector disconnects M123 only.
3.Check continuity between BCM harness connector and combination switch harness connector.





Does continuity exist?
YES- GO TO 2.
NO- Repair the harnesses or connectors.

2. CHECK OUTPUT 1 - 5 SYSTEM CIRCUIT FOR SHORT

Check for continuity between BCM harness connector and ground.





Does continuity exist?
YES- Repair the harnesses or connectors.
NO- GO TO 3.

3. CHECK COMBINATION SWITCH INTERNAL CIRCUIT

1.Connect the combination switch connector.
2.Turn ON any switch in the system that is malfunctioning.
3.Check voltage between combination switch harness connector and ground.
NOTE:
Check that the combination switch outputs a signal from combination switch input system.





Is the measurement value normal when any of the switches is turned ON?
YES- Replace BCM. Exploded View.
NO- Replace the combination switch.