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Dan, ASE Certified Technician
Category: GMC
Satisfied Customers: 1687
Experience:  Auto Technician
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2008 gmc 1500.. brke lights come on when head lights are

Customer Question

2008 gmc 1500.. brke lights come on when head lights are turned on .. with the head lights off they are not on and work properly. Help please
Submitted: 11 months ago.
Category: GMC
Expert:  Dan replied 11 months ago.

Hello my name is***** am an ASE Master Technician and I am glad to help you out with your question.

Expert:  Dan replied 11 months ago.

Do you have a wiring diagram of the headlamp and brake light circuits?\

This sounds like wires touching together, somewhere between the headlamp and brake circuit. Any aftermarket brake controllers installed?

Customer: replied 11 months ago.
No after market stuff where would be a good place to start ...location
Expert:  Dan replied 11 months ago.

Check the trailer stop relay.

I can send you a wiring diagram of trailer, stop and headlamp circuits if you would like.

Expert:  Dan replied 11 months ago.

Hello again Dan here,

I am contacting you because the post has not been closed or rated.

This question is coming up on 7 days which means it will time out and close.

You have already paid to get this question answered, but you have not rated.

Let me help some more. Is there anything else I can help you with?

If I did not give you 5 star service, please let me know what I missed.

I do not get compensated for my time and resources unless you rate me.


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