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Colors for trailer wiring?

Discussion in 'Chevy Trucks' started by chcav1218, Jan 28, 2010.

  1. chcav1218

    chcav1218 Senior Member
    Messages: 954

    I'm installing a seven pin trailer plug on my truck, But I have eight wires!

    I have a Red, Blue, Light Green, White, Brown, Yellow, Green, and Light Blue.

    I need to know what each color does so I can connect everything. I know at one time there was a little label on there that told me but thats long gone. Just called me dealer and the guy didnt seem too interested in helping me. Thanks GM
     
  2. chcav1218

    chcav1218 Senior Member
    Messages: 954

    did some snoopin around

    Green: Right Turn
    Brown: Left Turn
    Yellow: Brake
    White: Ground
    Light Blue: SCRATCH

    Still Needed:

    Blue:
    Light Green:
    Red:
     
  3. Nasty-Z

    Nasty-Z Senior Member
    Messages: 370

    Is it factory GM wiring ?

    If so :

    Yellow - Left turn

    Green- Right turn

    Brown - Parking lights

    White - Ground

    Red - Battery charge wire

    Blue - Trailer Brake control

    Lt Green - Back up lights

    Lt Blue - CHMSL wire (Center High Mounted Stop Lamp)



    Industry color code on 7 way trailer wiring is :

    Red - Left turn

    Brown - right turn

    Green - Parking lights

    White - Ground

    Blue - Trailer Brakes

    Red - Battery charge

    Yellow - Auxillary (mostly used for Backup lights)


    HTH

    TOM
     
    Last edited: Jan 28, 2010
  4. chcav1218

    chcav1218 Senior Member
    Messages: 954


    Thank You, I'm headin to the garage now!
     
  5. chcav1218

    chcav1218 Senior Member
    Messages: 954

    okaaaaaayy everythings plugged up hopefully it works. I guess we find out tomorow!
     
    Last edited: Jan 28, 2010
  6. Nasty-Z

    Nasty-Z Senior Member
    Messages: 370


    What year and model is your truck , there are multiple fuses to check if something is not working, or you can check them now , just to give you a heads up.

    TOM