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mm2 light help

Discussion in 'Chevy Trucks' started by bb1122, Dec 16, 2011.

  1. bb1122

    bb1122 Junior Member
    from Boston
    Messages: 3

    I installed a mm2 on my 2011 2500hd only passenger side light works in low beam on plow, in high beam both lights work, all directionals and marker lights work, when plow is unplugged all lights work, any ideas.
  2. buddymanzpop

    buddymanzpop Senior Member
    Messages: 597

    See if you can flip that non working low beam plug 180 degrees and plug it in that way, I'm not sure if those hb3/h11 harnesses can be plugged upside down like the hb3/hb4 harness,