Brake Controller and 7-Way Kit for 1999 GMC Yukon with 4-Way Trailer Wiring

Question

Question:

I need to install a brake controller and 7 way plug on 99 yukon SLT 4x4 which has a tow package. It has a pre-installed 4 flat plug on the rear near the receiver. Is it pre-wired for a controller or do i need to run all the wiring, find the cold side of my brakes, etc

asked by: Joel B

1

Helpful Expert Reply:

Your 1999 GMC Yukon is not pre-wired for a brake controller so to install one like our easy to use and reliable Brake EVN # TK63VR on your SUV that has a 4-way currently would require the 7-way/brake controller install kit part # ETBC7 which comes with everything needed to convert to a 7-way as well as wire in the brake controller.

I attached an install video for this on a similar 1999 GMC Suburban which will be basically the exact same as your Yukon.

expert reply by: Jameson C

1

Answer 1

The first thing you should know is there isn't exactly a standard for wire color/function. You pretty much have to ignore wire colors and instead wire by function in many cases. There are some constants though such as tow package wire bundles…

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Answer 2

When installing a brake controller such as the Tekonsha Prodigy P3 Trailer Brake Controller part #90195 on your 1999 GMC Yukon you will want to run the power wire (black) from the brake controller to the battery not the fuse box. You will also want…

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Answer 3

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 4

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 5

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 6

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 7

If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give…

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Answer 8

Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…

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Answer 9

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

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Answer 10

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 11

Since wire color codes are NOT universal, we always recommend wiring by function, rather than wire color. If you look at the Trailer Wiring FAQ article I have linked you to, you can see some diagrams showing the proper way to wire a vehicle and…

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Answer 12

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

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Brake Controller and 7-Way Kit for 1999 GMC Yukon with 4-Way Trailer Wiring

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