Troubleshooting Trailer Brake Controller Wiring on a 2009 GMC Sierra 3500 with 6 Wires

Question

Question:

I have a 2009 GMC 3500 pickup. It had a brake controller installed and I wanted to replace it with a new one due to an electric failure. The wires going to the installed controller are 2 yellow wires, one black wire, one blue wire, one brown wire, and one green wire. My new controller only has four wires: black battery, red brakes, white ground and blue brake output. Can you tell me how to connect the existing wires to my new brake controller?

asked by: Mark H

0

Expert Reply:

I do not understand why you have 6 wires going to your brake controller on your 2009 GMC Sierra 3500. The factory wiring located near the brake pedal will be red/black(battery power), white(ground), light blue/white(brake signal light), dark blue(output to trailer) and an orange(center mount stop lamp) that is not used. I would trace the wires that you have to these wires to verify what their proper function is. You can also use a Multimeter # PT89ZR to verify which wires have power and the ground wire. This will allow you to install the Tekonsha P3 Brake Controller # 90195 with its included harness.

expert reply by: Bud M

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Answer 1

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 2

Hey John, thanks for reaching out! Before I dive into it, I just want to throw it out there that the Curt Spectrum #C36QV, Tekonsha Voyager iD #TK86DR, and the Redarc Tow-Pro Elite #RED65CR are all great brake controllers and you'll be happy with…

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Answer 3

Hey Marco, thanks for reaching out! To get all of the wiring and such on your 2017 Hyundai Santa Fe you'll need the following: - Curt Wiring Connector #C59236 - Universal Installation Kit #ETBC7 - Tekonsha Voyager iD Brake Controller #TK26BR -…

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Answer 4

In order to test the motor on what I assume, based on your search history are a set of Kwikee Electric Steps, you will first want to sever the yellow and red wires on the motor. Once you do this you will then need to use a 12 volt power source you…

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Answer 5

It depends on what the brake controller output is set to. If you have the brake controller set to the maximum then there should be about 12 volts at the brake magnets. To see if the brake magnets are drawing the correct power set the brake controller…

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Answer 6

The piece you're referring to in the #LC26VR kit is called a "shoe". This part is plastic with foam pads on each end that helps cushion the motor bracket as it slides back and forth to either end of the track.

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Answer 7

I reached out to my tech contact at MaxxFan about your MaxxFan Deluxe Roof Vent #MA00-07500K and he said the flashing and beeping shows a voltage issue. It is either too high or too low to function correctly so the unit is trying to alert you to the…

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Answer 8

We do not carry an exact replacement unit for the MaxxAir Deluxe 8951K. We have the Smoke #MA00-07500K or White #MA00-07000K which would be the closest replacement. These fans use the same lift and fan motors but the control panels and circuit boards…

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Answer 9

Hi Deborah; the motor on your #MA00-07500K could be wearing out in which case you can replace it with the #MA10-20968. I wouldn't say it is the circuit board since it is sending the signal for the motor to work it is just failing to start up and…

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Answer 10

The Furrion Vision S Wireless RV Backup Camera System w/ Night Vision - Rear Mount - 5" Screen Item #FOS05TASF only has a 2 amp 125v slow blow fuse in the power cable. If you take apart the portion of the cord that goes into the 12v outlet…

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Troubleshooting Trailer Brake Controller Wiring on a 2009 GMC Sierra 3500 with 6 Wires

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