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MM2 No Power

Discussion in 'Fisher Engineering Discussion' started by UpstateDzlGuy, Dec 10, 2013.

  1. UpstateDzlGuy

    UpstateDzlGuy Senior Member
    Messages: 121

    Morning everyone, I am looking for a little guidance with my MM2 I just transfered over to my '06 Dodge Cummins. I finished installing the electrical last night and when I went to try it out I had nothing. The plow attached fine, thankfully, but I have nothing electrical wise. I tapped the power point fuse in the fuse panel where the previous western plow was tapped. I noticed the main plug when I connected it wouldn't seat all the way due to some corrosion. I have another new "C" harness that I am going to try. Barring any bad fuses or connections, would this harness being bad cause the issue?The truck lights all work fine by the way.

    Thanks in advance,

    Chris
     
  2. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,988

    So the lights work but no plow?
    No light on the clicker?
     
  3. UpstateDzlGuy

    UpstateDzlGuy Senior Member
    Messages: 121

    No, I have nothing. It's connected and acts as if it isn't. No light to the controller, truck lights on, no plow lights, and no movement of the plow. I'm leaning to replacing the "B" plug that connects to the light harness on the plow as it is a little corroded. I don't think the Black/Orange ground is making a connection and therefore the isolation module doesn't recognize the plow. Luckily I have a brand new harness to try!
     
  4. kimber750

    kimber750 PlowSite Veteran
    Messages: 3,691

    Should be a smaller red wire attached to pump solenoid. Make sure it is one the post that is connected to the battery.
     
  5. chevyzrule810

    chevyzrule810 PlowSite.com Addict
    Messages: 1,239

    Make sure all connections are clean of corrosion and greased.Im assuming you have your power wire to your controller connected to a key on source? Make sure the black wire with the orange stripe with the plug from the truck harness is plugged into the black wire with the orange strip with the plug from the negative battery terminal.And like kimber said make sure the small red pump solenoid wire is connected to the same post that the battery positive wire is attached to on the solenoid under the hood
     
  6. UpstateDzlGuy

    UpstateDzlGuy Senior Member
    Messages: 121

    Definitely will double check everything guys. It came off of my old truck as it is without unhooking anything other than the light connections and the plugs on the ISO module.
     
  7. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,988

    If the lights work then that blk/og wire is going to the ISO mod.
     
  8. UpstateDzlGuy

    UpstateDzlGuy Senior Member
    Messages: 121

    No there's no plow lights or pump response.
     
  9. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,988

    Ok. I miss read that
    Try the new harness and see what happens
     
  10. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,988

    Did you also ck the 3 fuses and there power source?
     
  11. UpstateDzlGuy

    UpstateDzlGuy Senior Member
    Messages: 121

    I checked all the fuses and cleaned the connections as well as replaced the harness and I'm back in action. It was definitely the Black/Orange ground not grounding out causing the issue. The plug at the grill was shot, 9 years old, and was the problem. Thanks for all the advice!

    Chris
     
  12. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,988

    Good deal.....