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Hot Rods GM Headlight switch

Discussion in 'The Hokey Ass Message Board' started by borpa11, Apr 26, 2015.

  1. borpa11
    Joined: Feb 10, 2014
    Posts: 63

    borpa11
    Member
    from Colorado

    Well I thought I was an idiot, I mean how hard can wiring a headlight switch be. After reading all six pages of HAMB on this topic apparently if Im an idiot Im not alone. Nobody addressed my concern.

    Im trying to wire my headlight switch to a universal three position 4 prong switch. I can't figure it out. My harness is a new EZ wire system (gm color coded). I could avoid this frustration by getting a GM switch but all my switches match and Id like to use the one I have. Does anyone know how to do this on a 4 prong (what wires can i join/splice)? If not I know what I need to do.

    Thanks in advance
     
  2. drptop70ss
    Joined: May 31, 2010
    Posts: 1,232

    drptop70ss
    Member
    from NY

    what do you want, off-lowbeam-hibeam? Do you want to use a dimmer switch or not?
    Red is or orange will be power in, depends on what year they color coded to. Brown will power out to running lights. yellow will be power to dimmer switch, which then has a tan out to low beams and lt green out ot high beams.
    So with no dimmer brown will be power out to running lights in the first switch position, 2nd position output would be the brown and yellow wire. Yellow jumped to the tan wire tan wire at the dimmer switch to give low beams. 3rd position would have brown, a newly added wire, and the newly added wire would be jumped to the lt green wire on the dimmer switch connector.
     
    Last edited: Apr 26, 2015
  3. how about a pic of the switch and terminal lettering/numbers
     
  4. kcblueoval
    Joined: May 27, 2009
    Posts: 23

    kcblueoval
    Member

    Won't the guys at EZ wiring systems help you? They should have tech line. Just asking. :confused:
     
  5. Can you use the GM switch, and just change the knob to match? Or do you need the physical body to match?
     
  6. borpa11
    Joined: Feb 10, 2014
    Posts: 63

    borpa11
    Member
    from Colorado

    You know that would be nice but three left voicemails and 5 total calls over 1 wk and no answer. I was gonna go with their Dolphin gauges but after such sorry service theres no way.
     
  7. borpa11
    Joined: Feb 10, 2014
    Posts: 63

    borpa11
    Member
    from Colorado

    May very well go this route.
     
  8. borpa11
    Joined: Feb 10, 2014
    Posts: 63

    borpa11
    Member
    from Colorado


    Dave, thanks this helps, the colors are all off so no idea what year they base these off of but your info should be all i need. I am running a floor dimmer and want my positions off, parking lights and headlights.
    Thanks Dave
     
  9. manyolcars
    Joined: Mar 30, 2001
    Posts: 9,609

    manyolcars

    the biggest wire is probably power in so put 12v there and see if anything is hot with switch off. that will be to the brake light switch for brake lights. Put light switch on next position, see which wire is hot coming out. Thats parking lights, and taillights, next position will be headlite wire to the hi/low beam switch and taillights. I probably left something out but this otta git ya started
     
  10. Frank Carey
    Joined: Oct 15, 2009
    Posts: 579

    Frank Carey
    Member

    Some headlight switches use two 12V feeds. One from a circuit breaker that is for headlights and one from a fuse that is for parking, tail, and dash lights. So your harness may have two 12V wires into switch. Does the harness provide for a circuit breaker? Is the fuse panel marked for tail/dash/parking? Me thinks a GM switch would be best. Just my $.02
     
  11. Fat47
    Joined: Nov 10, 2007
    Posts: 1,593

    Fat47
    Member

    Similar experience with EZ wire. Lots of calls and messages left, even an email or two. Never a response.
     
  12. borpa11
    Joined: Feb 10, 2014
    Posts: 63

    borpa11
    Member
    from Colorado


    Thanks all, Yes disappointed with EZ wire customer service, the product is good but the service not so much. I bought the harness to match up with the dolphin gauges but this customer service issue and the issues similar with no service with the gauges has changed my mind. I think I've got the lights on the run thanks to all the help.
     

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