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79 308 Headlight Electrical Problems

Discussion in 'Technical Q&A' started by John Ferrara, Dec 2, 2017.

  1. John Ferrara

    John Ferrara Rookie

    Dec 2, 2017
    3
    Full Name:
    John Ferrara
    The right headlight would not come up. I removed the headlight motor and it checked out fine. I reinstalled the headlight motor and it went up and down for a few times but again the headlight stopped working.
    Now it blows the fuse every time I install the the relay for the headlight circuit. I tested the relay and it was fine. I disconnected the headlight switch and it still blows the fuse. I disconnected the the headlight motors, left and right, and it still blows the fuse. Has anyone had this type of problem? Any help is appreciated.
     
  2. thorn

    thorn Formula 3
    Silver Subscribed

    Aug 7, 2012
    2,201
    Tallahassee, FL
    If the fuse is the correct size, then I suspect you have a short somewhere. Grab a meter, test the amps, and start looking for a frayed wire or similar issue.
     
  3. John Ferrara

    John Ferrara Rookie

    Dec 2, 2017
    3
    Full Name:
    John Ferrara
    Thanks for the response, it nice to know that some else is thinking the same and I think your correct. But i haven't been able to find it.I also think it may be between the left fan circuit and the headlight circuit. because when I install the fan relay, the fan comes on with the ignition off. So I must have a short between the two systems. Just cant find it.
     
  4. Verell

    Verell F1 Veteran
    Owner Consultant

    May 5, 2001
    6,974
    Groton, MA
    Full Name:
    Verell Boaen
    I'd start by checking all the wires that either flex, or are are rubbed by the right headlight mechanism.
     
  5. John Ferrara

    John Ferrara Rookie

    Dec 2, 2017
    3
    Full Name:
    John Ferrara
    Thanks, all the wires at both headlight look good no worn spots. it must be under the fuse and relay panel. I will start there. It going to be a fun one
     

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