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mm1 problem

Discussion in 'Fisher Engineering Discussion' started by bad93blaster, Dec 25, 2009.

  1. bad93blaster

    bad93blaster Member
    Messages: 70

    the lights dont switch over when i plug them in. does anyone know how to test the relays?
    i had to bypass all of that and just run the headlights off a toggler switch for last storm
  2. 2COR517

    2COR517 PlowSite Fanatic
    Messages: 7,115

    The 85 and 86 pins are the coils on the relays. If you connect 12V to them, you should here them click. One side is connected to the truck parking lights through the brown wire. When you connect the plow, the relays are grounded through the black/orange wire.

    The Fisher website has good electrical schematics for these plows.