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Where is Brake Controller Install Wiring on 2012 Chevy Tahoe  

Updated 11/04/2025 | Published 07/25/2023

Question:

I can’t find the wires on my 2012 Tahoe and the port I tried plugging into with the wiring harness the vehicle wouldn’t start, unplug it and it starts just fine?? Can’t locate the wires and already have the seven pin in the back. Help please

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Expert Reply:

I attached a picture that shows what the brake controller install wiring looks like on your 2012 Chevy Tahoe.

I also attached a help article on the install process for you to check out as well.

expert reply by:
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Jameson C
Wiring Location
Wiring Location
(click to enlarge)
Ray profile picture

Ray

11/3/2025

Yeah I can’t find mine either beer all over under the steering wheel black can’t found anything but I have the two wire close to the fuse block under the hood ???

Jameson C. profile picture
Etrailer Expert

Jameson C.

11/3/2025

@Ray Do you have a 2012 Tahoe? If so have you checked out the attached link?
@jameson C. profile picture

@jameson C.

11/4/2025

Yes I do. Just got it and the wires wasn’t where they so post to be like the pic I found mine higher up under the steering column

Jameson C. profile picture
Etrailer Expert

Jameson C.

11/4/2025

@@jamesonC That's interesting but either way I am glad you found the wires and we appreciate you letting us know where you did find yours at.

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