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headlight problem after install

Discussion in 'Chevy Trucks' started by the new boss 92, Dec 13, 2008.

  1. the new boss 92

    the new boss 92 2000 Club Member
    Messages: 2,989

    i got my wiring harness in last night and installed it with no problem except when i turn my headlights on both the regular headlights and the brights are on. how can i fix this i couldnt find anything on troubleshooting on boss's web page? i have a 92 chevy 1200 with a 350.
  2. RichG53

    RichG53 PlowSite.com Addict
    Messages: 1,135

    Might have your plugs reversed or your relays.......
  3. 06Sierra

    06Sierra PlowSite.com Addict
    from Maine
    Messages: 1,329

    The Fisher I bought this summer came off a 2001 GMC, I put it on an 06. I had the same problem. Where the factory light harness plugs into the plow harness, the wires weren't matched up. Say it is a red and black wire, the red on one end plugged into the black on the other end. I pulled the wires out of the plow harness and switched them around and all is good. Take a look at the wires and make sure they match up, I would think it would be color coded.
  4. the new boss 92

    the new boss 92 2000 Club Member
    Messages: 2,989

    alright ill take a look and the wiring and open up the wiring inside the black casing and see what i can find