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Headlight Problem = need help

Discussion in 'Trucks and Trailers' started by AboveTheCut, Jan 2, 2006.

  1. AboveTheCut

    AboveTheCut LawnSite Member
    Messages: 137

    2000 Dodge 3500 Sport pickup. My headlights will not turn off. Fog lights and parking lights and high beams work like they should (on/off) but my headlights will not turn off. I removed the headlight switch from the dash and the lights are still on. finally had to disconnect both batteries. Is it a relay that I am missing? Thanks
  2. stumper1620

    stumper1620 LawnSite Bronze Member
    Messages: 1,889

    sounds like a stuck relay or a bare wire between the switch and the relay,
    I'm not sure on dodge but I think the head light circuit is a switch to ground system, meaning that the switch completes the circuit by grounding the circuit, check for a wire that maybe rubbing a ground source.
    find your relay, remove it and use a meter set to amps connect between the terminals on the low load side of the relay, if it shows amps, you have a circuit completing between the relay connection and the switch connection.
    I do know that dodge has a lot of problems with the harnesses in the truck you have.
    good luck.

    UNISCAPER LawnSite Bronze Member
    Messages: 1,426

    How much compression does the number 5 cylinder have? :):):)
  4. AboveTheCut

    AboveTheCut LawnSite Member
    Messages: 137

    it ended up being the light module for my plow lights (Meyer) between the factory lights and the plow lights. I got a pair of them for $135. i put both new ones in and saved the old, good one for a spare.

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