Question about 1999 Chevrolet K1500

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No high beams on a 99 chevy

I have a 99 chevy Z-71 which now has no high beams. All other lights work correctly and if you click the dimmer switch the hi beam emblem in the gauge cluster lights up but no high beams. Any thoughts or can someone tell me the location of the high beam realy. Thanks

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  • caddytrey Aug 28, 2008

    I have already looked in the underhood fuse panel, the fuse panel by the driver's side and the panel on the interior firewall down by the pedals. Any place left to look?

  • caddytrey Aug 28, 2008

    That is on my to do list for today after work. I am still curious about the relay though. I have had a dealer tell me no such relay exists but the local parts shop has the relay listed for such an application but no location. I will find it if it exists. Thanks

  • caddytrey Aug 28, 2008

    Thanks for your help, I will look into that when I get home from work

  • caddytrey Aug 28, 2008

    Thank you for help. I will look into the headlamp relay when I get home. However, if the relay has gone bad would any of the headlights work? This is a 99 old body style, I am not sure if I mentioned that anywhere.

  • caddytrey Aug 28, 2008

    Now I know exactly what to look for. Previous owner had some add ons an tapped into power inline splices where ever he could,one of which was on a light green wire pulled out of the factory loom. Connection looked bad so that is my first place to start. Thanks again for the help and sorry for making you hunt so bad. I had asked so many other places and that I left out the most important part of the question.

  • Anonymous Nov 07, 2008

    no high beam headlights on a 1995 jeep grand cherokee

  • Anonymous Mar 12, 2014

    high beams wont work in my 84 chevy

  • Anonymous Mar 23, 2014

    just need to know if this is a few weeks work about us.


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Look under your hood for the fuse/relay box will be on left side behind battery. the relay and fuses will be in there check fuses also

Posted on Aug 28, 2008

  • 1 more comment 
  • TripleTauto
    TripleTauto Aug 28, 2008


  • TripleTauto
    TripleTauto Aug 28, 2008

    the 99-02 only have a headlamp relay it is the on closest to battery in underhood fuseblock. they started with a seperate hi beam and lo beam relay in 03 an up.

    you can try and swap the relay from another one there is several in box that are same this is a quick way to rule it out

  • TripleTauto
    TripleTauto Aug 28, 2008

    old body is different than what i have posted. your hi beam indicator runs off the same power feed as the hi beam lights. a light green wire so check and see if you have power at the bulbs if you dont thenm that wire is broke somewhere in the harness


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