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FIXITMAN, Master Technician
Category: GM
Satisfied Customers: 17368
Experience:  ASE Master Certified
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GM 2500hd duramax: My interior lights stay on in my 03 dur

Customer Question

My interior lights stay on in my 03 duramax
Submitted: 2 years ago.
Category: GM
Expert:  FIXITMAN replied 2 years ago.
Hello, my name is***** for the question. If I am not online when you return please give me some time to get back to you. Can you tell me if the radio stays on too? Do the lights stay on even while driving?
Customer: replied 2 years ago.
Radio does not stay on. It operates normally. Interior lights stay on while driving or as long as key is on. They shut off a while after the key is shut off. I've inspected wires under passenger door sill behind drivers door. All good
Expert:  FIXITMAN replied 2 years ago.
Do the lights do anything when the dimmer switch is moved?
Customer: replied 2 years ago.
Expert:  FIXITMAN replied 2 years ago.
Thank you. It sounds like you have a failing lighting switch or body control module. These are both common on this truck. The only way to know for sure is to use a voltage meter to run some electrical checks. Did you have one?