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Locating the Brake Control and Battery Charge Wires on a 2007 GMC Yukon Denali  

Question:

Where, under the hood, is the spade connector for the trailer brakes on my GMC Yukon Denalli? I found the other spade for the live power, but am having trouble locating the one for the brakes! Thanks for the help!

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Expert Reply:

The brake control wire you are looking for on your 2007 GMC Yukon Denali will be located between the fuse box and the driver side fender. It may be wrapped up in black electrical tape. Once you have located the wire you will need additional hardware to secure the wires to the studs. I have included links to the two nuts used to secure the wires to the studs.

I have included an article and a video that shows the location of the brake control wire and the battery charge wire on your vehicle. The vehicle in the video is a 2007 Cadillac Escalade, but the wire locations are the same. Be careful you do not raise the gray handle near the studs on the fuse box more than 3/8 of an inch because the fuse box can become disconnected from the electrical connector.

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John H
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