2010 GMC Yukon Denali Electric Brake Controller Wiring Installation

Question:

Have been reading your forum on Brake Controller installation. 2010 GMC Yukon Denali Electric Brake Controller Wiring I located the vehicle wiring under the dash, but it does not follow any of the color codes Ive seen on here. On my vehicle, I have the following four wires: DK BLU - AUX RED/BLACK - BATT LT BLUE/WHT - CHMSL WHITE - GND Everything Ive read says there is usually an additional Orange wire labeled CHMSL, and is not typically used. My vehicle only has the four wires and the Lt Blue/Wht is the CHMSL. Would this wire be used in this case? See attached photo Can you provide some guidance on the wiring color coding and which of your controllers you would be recommended for this application? Thanks

asked by: Fred B

Expert Reply:

For your 2010 GMC Yukon Denali Electric Brake Controller Wiring, you will connect the DK BLU wire to your brake controller blue wire that is the electric brake controller output. You will connect the RED/BLACK wire to the black 12V power wire. You will connect the LT BLUE/WHT wire to the red stoplight switch wire on your controller. You will connect the two white wires for ground. I've attached a few articles to help further if needed. I've attached a video to assist.

If you don't already have a brake controller, I recommend the Tekonsha Prodigy P3 # 90195. This is a proportional brake controller that will apply pressure to your trailer brakes in proportion to your vehicle braking regarding time and intensity. It has and easy to read LCD screen that takes the guess work and code deciphering out of the equation so you will have real time information. It has 3 levels of boost and is customizable for your driving preferences.

expert reply by: Jason S

click to enlarge

Tim R.

3/20/2024

Jason, I have the Prodigy controller and have wired it as per instructions but have no voltage to power the unit from the RED/BLK wire. I have the Haynes Manual and can not find any RED/BLK wires listed. Can you tell me what fuse provides the 12V to that RD/BLK wire ?

Andrew N.

4/3/2024

@TimR I attached a help article with a wiring diagram to help out. That said, you'll want to test each wire on your vehicle for functionality and wire it up to the prodigy as follows: black wire on brake controller goes to vehicle 12v power white wire on brake controller goes to vehicle ground blue wire on brake controller goes back to the 7 way for trailer brakes red wire on controller connects to the brake/stop switch in your vehicle Your vehicle also may need to have the tow package activated. If you can tell me the vehicle then I can better help you out Tim.

Helpful Links

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