Message Systems

9040-INTERIOR LIGHT SWITCH CIRCUIT STUCK

For a complete wiring diagram Consult Diagrams/Electrical.

- When Monitored:
Continuously with the ignition on.

- Set Condition:
The Roof Control Module (RCM) senses that the Interior Lamp Switch is in the Set position for greater than 40 seconds.





Diagnostic Test

1. DTC IS ACTIVE
Turn the ignition off then on.
With the scan tool, read RCM DTC's.
Is the DTC status Active at this time?

Yes

- Go to 2

No

- The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary.
- Perform BODY VERIFICATION TEST - VER 1. Verification Tests.

2. INSPECT FOR AN OBJECT OR SUBSTANCE CAUSING THE INTERIOR LAMP SWITCH TO STAY OR STICK IN A PUSHED POSITION
Inspect the Interior Lamp Switch for anything that would cause the Interior Lamp Switch to stay or stick in a pushed position.
Is anything present that would cause the Interior Lamp Switch to stay or stick in a pushed position?

Yes

- Repair as necessary.
- Perform BODY VERIFICATION TEST - VER 1. Verification Tests.

No

- Go To 3

3. INTERIOR LAMP SWITCH
Turn the ignition off.
Replace the Interior Lamp Switch.
Turn the ignition on.
With the scan tool, read RCM DTC's.
Is the DTC status Active at this time?

Yes

- Replace the Roof Control Module (RCM).
- Perform BODY VERIFICATION TEST - VER 1. Verification Tests.

No

- Test complete.