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93 gmc

Discussion in 'Chevy Trucks' started by CJ918, Jul 3, 2011.

  1. CJ918

    CJ918 Junior Member
    Messages: 16

    i have a 93 gmc and im installing my boss sportduty plow. everything is done except hooking up the turn signal light. not sure which wire to tap into on my gmc. there is brown or blue and white. anybody know?
  2. 2COR517

    2COR517 PlowSite Fanatic
    Messages: 7,115

    Brown is park/tail. Pretty sure blue is turn. Light blue on one side, dark on the other. Use your voltmeter or test light to confirm
  3. CJ918

    CJ918 Junior Member
    Messages: 16

    ok i will check.. and ya it is brown and blue.. been wiring my plow all day dont know where i got blue and white.
  4. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    • Brown- Markers
    • Dk Blue - R Turn
    • Lt Blue - L Turn
  5. CJ918

    CJ918 Junior Member
    Messages: 16

    i was looking at the wiring diagram for the gmcs but it was confusing. thanks for the help!