Question about 1999 Chevrolet S-10 Pickup

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99 S10 high beams work, but low beams don't.

I have a 99 S10 the other morning on my way into work the headlights stopped working. The high beams still work as normal, but the high beam dash light stays on at all times regardless if they are actually shining or not. The daytime running lights don't come on at all. It is as if the truck thinks the high beams are on all the time, therefore the low beams will not come on. Anyone know what I will need to do or replace to fix this?

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  • Chevrolet Master
  • 21,873 Answers

Do you have power in and out of the dimmer switch in the low beam position ?

Posted on Feb 15, 2014

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6 Suggested Answers

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Posted on Jan 02, 2017

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SOURCE: 1997 Chevrolet Headlight problem

We had the same exact symptoms right down to the clicking noise under the dash. A friend who is a mechanic provided all the wiring diagrams, etc and when we pulled the dash we found that there was another enclosure behind the dash.....we stopped there.......

....waited a few days, did some research and decided since a replacement headlight switch was about $50.00 the easiest route was to to swap that out hoping it would fix the problem....was also a very easy installation.

Turns out that fixed the problem. Good luck!!!

Posted on Aug 13, 2008

  • 2 Answers

SOURCE: headlights wont work

Well...lets start with the obvious. Check fuses and NEVER piggyback any stereo or security stuff into their fuses...you dont want the lights to shut down during a night drive!!
Check under the hood for a relay center...also has some fuses there as well.

The Daytime Running Lamps are a "straight through wiring configuration". Doubt it even goes through a headlight switch at all.
But the regular lights do.
Unless you've worked on the front of the car and forgot to plug the headlights back in, do this...
Turn the light switch on...looking at the instrument cluster , can you make the high-beam-indicator light come on?
As you rotate the headlight switch knob...does the instrument panel lights brighten or dim? You probably have a faulty headlight switch...auto stores have them...they simply plug in.

Posted on Jan 04, 2009

djicenova
  • 319 Answers

SOURCE: low beam headlights not working

check voltage at switch

Posted on Mar 18, 2009

emissionwiz
  • 76848 Answers

SOURCE: While driving down the road my headlights will

replace the main headlight switch and the connector to that switch, the connector can be obtained from the dealer only in most cases.

Posted on Jun 18, 2009

heavymetal77
  • 721 Answers

SOURCE: low beam headlight /daytime light are not working

It's on the driver's side. Remove all the plastic & it's in there.Big rectangle, black box,about 1.5" thick,lotta wires.

Posted on Jun 22, 2009

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