Question about 2006 Chevrolet Trailblazer

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Both dim headlights will not burn. brights work just fine. checked fuse and switched relays with no result. any other ideas??

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  • 6 Answers

Most headlights have two different bulbs: one for regular/dim and one for bright. It's time to replace your headlights.

Posted on Oct 28, 2012

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Posted on Jan 02, 2017

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SOURCE: 2004 Cavalier Day/dim lights not working

I finally got mine fixed!! It was the crossover wires between headlights(the wires that run in front of the radiator). One wire was torn into. Spliced them and taped back together. Hope this works for you!! I also used something called wire caps that help hold the spliced wires together. I found this solution on yahoo.com search engine where someone else had suggested this. My only problem was no dim lights, but all the other lights worked fine.

Posted on May 11, 2009

  • 1509 Answers

SOURCE: The drivers right side head lite is dim on normal

Follow the ground wire ( black to the raditor suport and reconnect it or add aground wire from it to the battery ground and it'll work good. Bet it goes out if you unplug the other headlightas it's grounding thought the other light.

Posted on Oct 01, 2010

wracefans24
  • 1985 Answers

SOURCE: Left headlight is dim - like it has a bad ground.

i think you hit the nail on the head with the ground problem,if you remove the bulb from the head light assembly,wiggle the black wire to see if the bulb gets brighter,if it does remove the bulb and clean and tighten the ground wire end.if it does not get brighter from a wiggle,connect the ground end of a test light to the positive post of the battery and probe the black wire,test light should light,if so replace the light socket.

Posted on Nov 26, 2009

  • 186 Answers

SOURCE: Within the past month, both

Have you replaced the multi-function switch? It is common for it to stop hedlight funtion and allow other funtions to keep working.

Posted on Jul 19, 2009

  • 12 Answers

SOURCE: 1996 chevy k1500 350 vortec- can't get my

How did you check the bulbs? I might try replacing them

Posted on Jun 14, 2010

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There is a relay (electronic switch) that controls the headlights. It is burned out. They are only about 7 dollars, mounted in the fuse box.

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Had this once...Check voltage at plug on dim side to see if you have power.
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04 optima


I would definitely look into the switch at this point. Make sure there are no blown fuses in the relay as well. But most likely your switch is the problem.

Side note. The bulbs are still good in the car right. I have seen cases where both headlights burn out because of voltage surges caused by bad wiring etc. Also I have seen someone pull the headlight switch in a certain position so both the dim and brights were on (depending on car) and this caused both headlights to burn out.

Hope I could help

Sep 07, 2008 | 2004 Kia Optima

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