Question about 2006 GMC Canyon

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Trailer wiring for 06 GMC Canyon 4x4

I have wired on a pig tail for pulling a pop up trailer. I went to the rear of the truck and fould the cluster of wiring before it breaks and goes to each rear light section. I color coded the wiring for yellow as left bliker, green as right blinker and brwon as tail lights. Nothing seems to work right and I can't figure it out.
Please help, David

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  • david594 Aug 13, 2008

    I am trying to remember. It seems like when I turn on the right blinker that both trailer blinkers blink. When I turn on the left nothing happens on the left trailer blinker but the lights on my instrument panel are both are kinka lighting. Nothing happens when I put on the brakes.

  • david594 Aug 13, 2008

    yes I did hook a ground to the truck. I did use the white one.

  • david594 Aug 13, 2008

    Some one at Auto Zone said that I might need a converter. I guess if I have independent blinkers or something. I bought one and couldn't figure it out so I took it back

  • Anonymous Mar 15, 2014

    I am trying to find out what color wire is the tail light and I presume one of the yellows on each side is the blinker. Need help . Thanks

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Yes the converter fixed my problem on the tail light wiring. its beacause the stop lights and blinkers are 2 differrent bulbs.

Posted on May 18, 2009

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Get yourself a cheap test light, then turn on left turn signal , test light will blink on the wire coming back , and attach to the left turn on trailer, next repeat for the right turn signal, attach this wire to same on trailer, the other one is tail lights, hook it up and you will be good to go. The brake lights will naturally come out the turn signal wires.

Posted on Aug 13, 2008

  • bill  willis
    bill willis Aug 13, 2008

    Okay your vehicle probably has four feeds to the back, the brake lights may have a separate wire. Most trailers have a three wire set up because for years most vehicles used the turn signals for the brake lights also. These newer ones have left, right, tail, and brake. Without being there it is difficult to visulize this. Use test light and locate wire on vehicle for left turn signal and then hook it to trailer wire that makes left turn light blink. (This is a two person job).Repeat procedure on right turn signal. Then locate tail light wire and hook to same on trailer. You should now have Left and right turn signals and tail lights. Now apply brakes and if you do not have stop lights, you will have another wire on truck that turns them on, I am not familiar the converter you mentioned, but it probably lets you hook the three wire trailer to a four wire truck. One other solution is adding two lights for stop lights back there.

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Exactly what does it do? please explain what happens when you press the brake turn on the light than brake signals ect.....

Posted on Aug 13, 2008

  • Cameron Viseth
    Cameron Viseth Aug 13, 2008

    did you hook up a ground on the truck. if you are using a 4 prong plug it will have a green,brown,yellow and white wire. the white wire needs to be hooked up to the frame of the truck as a ground.

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