Where is the Brake Controller Wiring Located on a 2008 Chevy Suburban

Question

Question:

I have a 2008 suburban, I am the original owner. It has a factory installed trailer package. When the shop a trailer shop tried to find the trailer package to hook up a brake controller under the dash they couldn’t find it. The two wires under the hood were there but not were they should be under the dash. Have any ideas?

asked by: Ned

1

Helpful Expert Reply:

The wire bundle to install a brake controller on a 2008 Chevy Suburban is tucked up under the dash but may be more to the left of the steering column than on GM trucks. It is most likely tucked up above other components or wiring. There should be a white tag holding the wires together. If there is no white tag then look for a red and black, white, light blue and white, dark blue, and orange wire all near each other. Assuming they are not connected to anything those are likely the tow package wires.

The red/black wire is 12 volt power in so testing it with a meter should show 12 volt power. White is ground. Light blue/white will only have power when the brake pedal is pressed. Dark blue is output to the trailer brakes, And orange is not used. Take a look at the video I have linked on a 2011 Suburban. It will be very similar to your 2008. Notice that it is possible for the wires to have different colors than what I have described above.

expert reply by: Michael H

1

Answer 1

The power supply wire you are looking for should be taped up on the cab side of your junction box. Some times it is tucked down and hard to see and has to be fished out. If it is not there you can run a wire from the junction box into the cab and…

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Answer 2

We have an FAQ article that will help with your 2011 Chevy Silverado. I have included some excerpts from it below and I have included a link to it for you. In addition to these steps, you will want to check the vehicle owners manual for the location…

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Answer 3

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 4

On a factory 7-Way connector the 12 volt hot wire should be the terminal at the 1 oclock position, looking at the front of the connector. If you test that terminal with a circuit tester and have no power you will want to check under the hood of your…

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Answer 5

There are some connections that you will need to make under the hood of your 2008 Chevy Suburban to make the tow package wiring fully functional. We actually have an FAQ article that I have linked for you that explains what to do. You will need the…

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Answer 6

A weight distribution system would be a good choice for you. We recommend using one whenever the weight of the trailer exceeds half of the vehicles towing capacity. You are almost there with the weight of your trailer so it would be recommended. The…

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Answer 7

With your tongue weight being 680 pounds, which will include the weight of the tanks as long as they came installed from Rockwood, the Fastway e2 Weight Distribution w/ 2-Point Sway Control - Round - 10,000 lbs GTW, 1,000 lbs TW #FA94-00-1000 will…

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Answer 8

Sway control is designed to be used in situations where the trailer sways under adverse conditions such as high winds or when large vehicles are passing causing the trailer to become unstable. Sway control also helps if you have to maneuver suddenly.…

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Answer 9

Lug Nut torque for the Aluminum Trailer Wheel #AM22654 will be between 90 and 100 foot lbs torque based on the 1/2 x 20 wheel studs and 15 inch aluminum wheels. Because the wheel bolt holes are reinforced with the improved clamp force technology, I…

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Answer 10

Sometimes the fuses are already installed from the factory, but if not the fuse slots are in the front of the box. I have attached a picture that shows the location of fuse slots. I have also linked a video installation of a brake controller on a…

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Answer 11

The Prodigy P3 trailer brake controller uses a 4-wire hookup. The white wire is to be grounded to the battery negative terminal; the black power wire connects to the battery hot terminal through a circuit breaker; the red wire takes in the brake…

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Answer 12

If you have a bench vise you can put a cloth around the ball and use the vise to hold it so you can torque the nut to spec on ball #C40008. Like you said this ball doesn't have wrench flats so there isn't really a better way than using a…

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Where is the Brake Controller Wiring Located on a 2008 Chevy Suburban

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