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Dim Nighthawk lights?

Discussion in 'Chevy Trucks' started by probee, Dec 9, 2011.

  1. probee

    probee Member
    Messages: 37

    I have a Ultramount MVP, Just put a new set of Nighthawk lights on and the lights seem really dim on low and works well on high beam. I have a 3 port module and everything is hooked up correct. Any suggestion how I could get more light on low beams?

    Have a ultra mount undercarriage for sell,just took of a GMC 2500 hd.

    Thanks
     
  2. Philbilly2

    Philbilly2 2000 Club Member
    Messages: 2,615

    did your low beams work well when you had the rectangle lights on there?

    do you still have those lights around?

    did you just remove the old ones and use the new harness provided by DD?
     
  3. probee

    probee Member
    Messages: 37

    My lights seemed dim on my old set and yes I have the old set of light and yes I put the new light harness on the on the plow.
     
  4. Philbilly2

    Philbilly2 2000 Club Member
    Messages: 2,615

    do you have a voltage meter?
     
  5. probee

    probee Member
    Messages: 37

    Yes..getting ready to test
     
  6. Philbilly2

    Philbilly2 2000 Club Member
    Messages: 2,615

    Here is the pin configuration for the plow side of the lighting harness

    Plow Plug Lights.jpg
     
  7. Philbilly2

    Philbilly2 2000 Club Member
    Messages: 2,615

    That diagram is the reverse of what you are testing: you will be looking at it backwards

    check you voltage on pins #1 and #7 to a known good ground (like the negitive post of the battery) should see above 12V+

    check the ground pins #2 and #6 for 12V+ to the positive side the the battery.

    If both test out good test accross 1 to 2 and 6 to7
     
  8. buggzy

    buggzy Junior Member
    Messages: 1

    do you still have the truckside mount for a chevy/gmc 2500hd? what year is it from?