Question about 2002 Chevrolet Cavalier Coupe

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Would a headlight out cause the service light to come on?

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Yes it will if you have a drl problem, probably cilick when you start the car

Posted on Oct 29, 2009

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A headlight may cause the problem only if there a problem with the wiring that it causes some short to some of your sensor. This is uncommon though.

Posted on Oct 02, 2009

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No, no sensor on headlight the computer monitors because its very obvious when it goes out and it dosn't affect performance of car. Go to you local autozone and they can scan the codes for you for free and give you an idea where to start for the check engine light

Posted on Oct 02, 2009

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1 Answer

Headlights blink on and off


You have a bad connection or a bad earth on the lights themselves. This can cause higher resistance in the switch. It may also be that the switch itself is faulty, and I would change that first and then work towards the headlights themselves.

Jun 12, 2016 | Cars & Trucks

1 Answer

How much does it cost to repair a HDM module on a 2007 Buick lacrosse


  • Subject of a RECALL so free
  • http://www.dealerrater.ca/recalls/Buick/LACROSSE/
  • 2007 Buick LaCrosse Recall Item Affected: EXTERIOR LIGHTING: HEADLIGHTS Date Announced: 08-14-2015 Description of Recall: General Motors LLC (GM) is recalling certain model year 2007 Pontiac Grand Prix, 2006-2009 Buick LaCrosse, 2006-2007 Buick Rainier, Chevrolet Trailblazer, GMC Envoy, 2006 Chevrolet Trailblazer EXT, GMC Envoy XL, 2006-2008 Isuzu Ascender, and Saab 9-7x vehicles. In the affected vehicles, the headlamp driver module (HDM) may overheat and fail, causing the headlamps and daytime running lights to not illuminate. Action Need To Fix It: GM will notify owners, and dealers will replace the HDM, free of charge. Interim notices were mailed to owners on September 2, 2015. Dealers will install a new HDM Service part as an interim repair. Owners will receive a second notice when remedy parts are available. Owners may contact Buick customer service at 1-800-521-7300 or Pontiac customer service at 1-800-762-2737. GM's number for this recall is 14291. FIND YOUR LOCAL Buick Service Centre
  • Buick Lacrosse Fires Caused by Faulty HDM Module? ' R.J ... https://rjhillconsulting.wordpress.com/2014/07/23/buick-lacrosse... 2014-07-23 · On 7/2/15 my 2009 Buick LaCross fuse box caught fire, I have since then learned that it began in the HDM module. There is a Technical Service Bulletin for ...
  • What is a Buick hdm module - Answers.com www.answers.com > ... > Pontiac > Pontiac Grand Prix > Grand Prix SE It is the headlight drive module. It is used for daytime running lights and low beam operation. It works in conjunction with the light sensor on top.

  • Buick Lacrosse Fires Caused by Faulty HDM Module? ' R.J ... https://rjhillconsulting.wordpress.com/2014/07/23/buick-lacrosse... 2014-07-23 · On 7/2/15 my 2009 Buick LaCross fuse box caught fire, I have since then learned that it began in the HDM module. There is a Technical Service Bulletin for ...
  • What is a Buick hdm module - Answers.com www.answers.com > ... > Pontiac > Pontiac Grand Prix > Grand Prix SE It is the headlight drive module. It is used for daytime running lights and low beam operation. It works in conjunction with the light sensor on top.
  • Buick LaCrosse Recalls DealerRater

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    1 Answer

    What is wrong


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    91 dodge Dakota headlights and incab lights won't turn off


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    Ok I have seen tons of posts about this issue with the Pontiac Sunfire, but no clear solution. I have a 2001 Sunfire the yesterday the Day Running Lights quit working. My passenger side head light will...


    First check the R/S headlight fuse in the dash fuse panel (left side), second make sure the R/S low beam headlight bulb filament isn't blown, both these scenarios will do what you are saying. The DRL's work when both low beam lights are in series, thus only 6v going to each bulb at reduced brilliance. The high beam is a totally separate circuit controlled by the multifunction switch. The DRL relay is controlled by the Body Control Module, grounded there, and it will also illuminate the service vehicle soon light. It could also be a bad ground at G204. Its on the steering column support bracket.

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    1 Answer

    Dash lights go off intermittently


    I'm no expert, I recently purchased a 2003 vibe. I noticed the automatic headlight's sensors can be super-sensitive, about an hour hours before dusk they'll kick my headlights on (when the sun is still shining!), or sometimes when I go into an underpass, and then sometimes they'll realize it's light enough and turn themselves off. This would cause your dash lights to go to the 'headlights on' mode and turn the headlamp signal on, the intensity is controlled by the dimmer/dome light control on the left side of the dash. Check to see if the dimmer is down too far, as this could cause the lights to dim when the automatic headlights turn on. It's also possible that the dimmer is not working, thus no power is getting to the dash lights through the dimmer. Try testing it by starting the car in daylight, then manually turn on the headlights, then adjust the dimmer. Like I say, I'm no expert, just guessing because I've noticed it happen similarly on my Vibe, but my dimmer was at half-way, as I like it for night driving. Someday, I'd like to disable the automatic sensors and DRL.

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    the service light with wrench is for service vehicle and is on possibly because there is a burned out light bulb on the exterior. turn lights on and check every light even the license plate light. i bet there is a bulb out somewhere. check every light and hopefully this is the problem.

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    1 Answer

    2002 sunfire Drl problem


    check wiring in front of washer bottle and harness will lead to passanger side follow it open up harness ussually broken wires inside causing dim or no headlights.

    Jan 03, 2009 | 2002 Pontiac Sunfire

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