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Ron
Ron, ASE Certified Technician
Category: Chevy
Satisfied Customers: 33469
Experience:  35 years experience with ASE Certs
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The interior lights only with the switch. The timer does not

Customer Question

The interior lights only with the switch. The timer does not turn the interior lights on.
Submitted: 4 months ago.
Category: Chevy
Expert:  Ron replied 4 months ago.

Hello Richard, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.

The interior lights are controlled by the BCM (body control module) and in most cases if there is a problem with them the BCM will set and store a fault code. If you are able you need to start with scanning the system to see what the fault code is . I have enclosed the wiring diagram in the link below as well as the test steps. If you find a fault code post back with it as it will be helpful in narrowing this down. See the wiring diagram for reference in the second link.

https://dl.dropboxusercontent.com/u/104923897/Curt%20Jul%2013.pdf

https://dl.dropboxusercontent.com/u/104923897/Curt%202%20Jul%2013.pdf