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2000 Dodge Ram 2500 1 high Beam when plow is on truck

Discussion in 'Ram Trucks' started by vffdoug, Dec 28, 2008.

  1. vffdoug

    vffdoug Junior Member
    Messages: 25

    I have a 2000 dodge ram 2500 when I have my MM2 on the truck I only have 1 high beam. I believe I need the headlight harness. I had the part number and lost it. The local dealer wants $90 for one harness and $80 for the other harness, I had found them on line for like $50 a piece, but I have since lost the Fisher part numbers.
    Any help would be appreciated. I have the HB1 headlights on my truck.
  2. macplee

    macplee Junior Member
    from Boston
    Messages: 19

    My 2001 Ram 2500 had the same problem. First unplug the plow harness and connect the original headlight wire direct back to the headlight. If you are like me, my truck's headlight both works fine when connected back to the original vehicle harness. I narrowed it down to the Fisher passenger headlight harness after I measured the harness with a voltage meter. Two of the wires within the harness was faulty so I trace the wire looking for a short or broken wire. It turned out to be not the wire but the connector. Fisher does not sell just the connector and wanted $120 for a new set of harness. I then found an aftermarket headlight connector that fits HB1 headlights for $12. Got the new part, replaced the old connector with the new and everything works fine now. $18 with shipping and 1/2 hours of DIY, much better solution than the Fisher part.
  3. Crash935

    Crash935 2000 Club Member
    Messages: 2,377

    Do you have the configuration plug indexed right?