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no headlights!

Discussion in 'Truck & Equipment Repair' started by the427chevy, Nov 10, 2013.

  1. the427chevy

    the427chevy Junior Member
    from maine
    Messages: 3

    okay so, fisher mm2 on a 99 ram 2500, 4 port isolation module, i'm running HID headlights on the TRUCK end, but I switched back to halogen bulbs same situation, problem is, I have park lights on truck and plow, but I have no headlights on either, I have headlight power going to the truck head lights with the plow hooked or unhooked, I have no ground passing through the orange wire going back to the headlights from the isolation module, this problem is on both sides, I was thinking its the isolation module, I have two of them, same part numbers on both, both do the same thing, think I have two bad ones?!
     
  2. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,975

    what gnds out the lights from factory? I thought I read somewhere that dodge uses a module for the lights?
     
  3. the427chevy

    the427chevy Junior Member
    from maine
    Messages: 3

    No headlight control module on this generation truck, truck head lights work fine until you plug the headlight plugs into the harnesses. I have power and ground into the isolation module but not out
     
  4. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,975

    Ok . Might need to flip the plow to tk headlight connector from a to b
     
  5. the427chevy

    the427chevy Junior Member
    from maine
    Messages: 3

    How do I do that? I currently have the solenoid stuff plugged into port 1 the plow headlight plug in port 2 left headlight in 3 and right headlight in 4 is that correct?... Might I add the up down and angle functions work and the park lights work when you plug the left side in
     
  6. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,975

    At your tk headlights. The plow plug that plugs into your tk connector