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I only have 2 relays on my harnees, Shouldn't I have 4??

Discussion in 'Boss Plows Discussion' started by hitower, Nov 26, 2012.

  1. hitower

    hitower Junior Member
    from midwest
    Messages: 11

    Getting my plow truck ready for snow now, I bought it used in spring.

    2001 Chevy silverado 4x4 dump, Boss RT3 9'2" v plow #54055 I called Boss and they verified it was a 2001 plow.

    My question is per the parts and installation manual that came with the plow the schematic shows a 4 relay pack on the truck side. My truck only has two spots for 2 relays.
    I'm wondering if the previous owner switched out the truckside harness before I bought it??
    Does this 2 relay harness seem right?

    RBRONKEMA GHTFD 2000 Club Member
    Messages: 2,592

    Sounds like a old 11 pin harness to me. But it has been years since I have seen one of those so don't quote me.
  3. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    You have an 11-pin harness on a 99-02 GM, which has the positive common headlamps, so yes you'll have two relays. The relays are used only on the 11-pin and they're there to reverse the common from negative to positive to work with the 99-02.

    Normally the 11-pins had no relays at all.
  4. hitower

    hitower Junior Member
    from midwest
    Messages: 11

    Thanks for the help guys. I'm still trying to work out all the wiring bugs that came with this plow!!