Question about 1999 GMC Yukon

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Low and High Beams not working on 1999 GMC Yukon

My sister's vehicle.. she got the remote start as a gift then it quit working after a month or so, now after a while her headlights quit working. I have checked the fuse.. it is fine, but I can't even find the RELAY for the headlights..? Any help is greatly appreciated!

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  • ehad46 Jan 18, 2009

    When the switch is off nothing works, when it is switched to parking lights the daytime running lights come on, then when the headlights are turned on the parking lights work.
    No matter what the switch none of the actual headlights work.
    Pretty frustrating because I checked the fuse (good) and can't find the relay..


  • ehad46 Jan 19, 2009

    Headlights work from direct power, but not through switch.. is that probably bad? And is there not a headlight relay? Just the 50 amp fuse? Thank you..

  • ehad46 Jan 20, 2009

    Pulling the left turn signal toward the driver controls the switch between high and low beam. The actual switch to turn the lights on is on the left of the steering column, by the dimmer/interior light control.

  • ehad46 Jan 20, 2009

    Shoot I wish I could go premium, but I can't right now.. I have to go take care of a sick baby, BUT if you are around tomorrow afternoon or Wednesday afternoon we might be able to get it squared away. Or you could email me.. ehad46 at yahu dot com

  • ehad46 Jan 20, 2009

    What I was saying is I had to go take care of my child and could not go work on my truck last night. Thank you.

    So you can make money giving assistance on here?? That is nice.. I'll probably go ahead and get the premium tomorrow and ask you for help with all my vehicle problems, at least the ones I can't figure out.

    Thanks.

  • bartolose357 Feb 23, 2009

    low and high beams not working on my 1999 S10

  • bob collins
    bob collins May 11, 2010

    What does having a baby to sit have to do with premium? I am generally online 6-9 pm central, it is 7:30 now. I can't count how many pick ups I have taken the dash out of. Like I said, this is just to make it worth my time. I take your premium where you specifically ask for me and I post info you need and if you can't get to it for a day or two, no big deal. The premium doesn't pay till we're done and you are happy. You could make it a $15 premium and for the heck of it, tell everyone, hands off(haha). You do realize I can't make you do this.

  • bob collins
    bob collins May 11, 2010

    Can your dip under your dash to the headlight switch. Check the orange wire. Should light a testlight. If it is, can you get access to another switch. Can tell you more as I used to be a mobile eletrical mechanic. Please go premium and ask for me or live chat and ask for me. We might have lights in a few minutes. TY

  • bob collins
    bob collins May 11, 2010

    Headlights generally don't have a fuse but if yours do that's cool too. Next step is a previous question. Do you have a pull out knob or do they come on via left turn signal?

  • bob collins
    bob collins May 11, 2010

    If you know anyting about auto electrics I would say, take a wire straight from the battery positive to the lights to see if they work right off the battery.

  • bob collins
    bob collins May 11, 2010

    Pretty much one not related to the other. Do your headlights turn on bu a pull switch on dash?

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I would remove the remote start some cars wont register the remote start with the computer then the computer can do some crazy things its a biglist of problems it can do

Posted on Mar 05, 2009

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