Interior Lights working, but not working properly

DEREK GROSS

MEMBER
2004 GMC ENVOY
180,000 MILES

When the interior lights are override to on, all lights work, and I can click the optional light for each passengers lights and turn that light off. But I can't click the light to said light on individually the way it's supposed to work correctly.

1 Reply

JACOBANDNICKOLAS

MECHANIC
109,813 POSTS

Welcome to 2CarPros.

After looking through wiring schematics, I found there are two fuses that could be involved. Once is the courtesy light fuse and the other for reading lights. I need you to check both of these. I attached a picture of fuse location. Here are a few links that you may find helpful when dealing with fuses, checking and replacing. Note that the fuse box you are looking for is below the left rear seat.

https://www.2carpros.com/articles/how-a-car-fuse-works

https://www.2carpros.com/articles/how-to-check-a-car-fuse

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

https://www.2carpros.com/articles/how-to-use-a-voltmeter

https://www.2carpros.com/articles/how-to-check-wiring

Let me know what you find and if this was the problem.

Take care,
Joe

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