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Gmc sierra 3500 wiring help

Discussion in 'Chevy Trucks' started by mg1826, Sep 16, 2011.

  1. mg1826

    mg1826 Member
    Messages: 46

    Hi Guys, I recently installed a Whelen 12 strobe lightbar on my 2000 GMC sierra 3500 plow truck and now I need to connect the LED stop/tail/turn signal lights. I opened up the wiring harness that runs along the frame but I'm not sure what wire is what. Does anyone know what color wires are the stop, tail, and turn signal wires? I don't have a manual for the truck and haven't found a diagram online yet. Any help would be appreciated!
  2. MarkEagleUSA

    MarkEagleUSA Senior Member
    Messages: 321

    It should be:

    Left turn = Yellow
    Right turn = Dark Green
    Tail = Brown