Question about 2003 Chevrolet TrailBlazer

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I have an 03 chevy trailblazer and the low beam headlights do not come on. lamps and fuses are good. key off or on makes no difference. where do i look next?

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Dimmer switch.

Posted on Nov 18, 2009

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2004 trailblazer headlights are not working in dim but bright lights work


Low beams don't work ??????? But high beams do ????? DRL - daytime running lamps ?

HDM relay # 46 low beam relay , under hood fuse box.

Aug 17, 2017 | 2004 Chevrolet TrailBlazer

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Low beams dont work on 2000 volvo


It can be faulty low beam lamp or its connection issue for low beam lamps.

There are few solved helps links with proper solution to troubleshoot these issues.I suggest you to refer the links below.Click the link:----
Passenger side low beam out?

http://repairhelpcenter.blogspot.com/2012/01/passenger-side-low-beam-out.html

------------
Low beam HID light goes out? http://schematicsdiagram.blogspot.com/2012/01/low-beam-hid-light-goes-out.html
----------2007 Dodge Caliber: Low Beam Headlight Not working http://technoanswers.blogspot.in/2012/06/2007-dodge-caliber-low-beam-headlight.html
-------------Chevy Tahoe: Low Beam Lamps are not working? http://technoanswers.blogspot.in/2012/04/chevy-tahoe-low-beam-lamps-are-not.html
----------2001 Chevrolet Tahoe: Both Low Beam Lamps Not Working? http://technoanswers.blogspot.in/2012/04/2001-chevrolet-tahoe-both-low-beam.html
--------------2002 Toyota Tacoma: Low Beams not working? http://technoanswers.blogspot.in/2012/04/2002-toyota-tacoma-low-beams-not.html
-----------Low beam headlights Modification? http://schematicsdiagram.blogspot.in/2012/04/low-beam-headlights-modification.html
-----------DRL and Low beams not working? http://schematicsdiagram.blogspot.in/2012/04/drl-and-low-beams-not-working.html
-----------These will help.Thanks.

Nov 25, 2012 | 2003 Volvo S80

2 Answers

I have a 1995 Ford Explorer Limited and the high beams work but the low beams and fog lights do not, please help....


These trucks are known for bad multifuction switches.
the switch that i talk of is the signal switch , the handle is the switch, it bolts to side of steering column . this switch controls the signals and the headlights and high /low beams. the other thing is the headlight switch connector, the connector some times goes bad and starts to melt or just comes out of the connector. you will need to remove the cover to steering column, the screws are located under the bottom cover in holes. remove cover and check connector and then test for power if you have power going into switch but not coming out then switch is bad.

the last thing is to make sure the bulbs are good , make sure the headlight bulbs are good , and also the driving light bulbs, test for power at the connectors to those lights to.
You will need to do a little testing to find the problem.

Nov 22, 2012 | Cars & Trucks

1 Answer

I have no low beams headlights on my 2007 Chevy Trailblazer


I would check to make sure they are not burnt out, Then check my fuses, then check my switch.. It is a matter of elimination

Sep 05, 2012 | 2007 Chevrolet TrailBlazer SS

1 Answer

Low beams quit, high beams ok.


You have a separate fuse for the high beams and the low beams. Fuses are located in panel in driver's side of dash concealed when door is closed, or in the power distribution box under the hood on the driver's side. You have separate lamps for each (not likely since they both went out together).
The worst thing it could be, and it is very expensive for parts/labor (and you don't want to tackle this one yourself unless you are a good mechanic) is the column-mounted dimmer/cruise/wiper/washer/turn signal switch. The part alone is almost 200 bucks, and installing it requires dismantling the steering column inside the SUV.
Hope it's not that.

Feb 22, 2010 | 2003 Chevrolet TrailBlazer

3 Answers

2002 chevy trailblazer low beam lights will not come on.


if both lamps dont work a common problem was the headlamp module. It looks like a black relay in the underhood fuse block (next to the master cylinder), there is two black small relays right next to each other (they used to say 15016745 on top in white letters.) One is for the low beams and one is for the fan clutch. Swap them and check the lamps - if the come on, go get a new one at the dealer and replace the bad one. If you leave the bad one in the fan clutch your gas mileage will be bad and your ses light will come on.

Mar 31, 2009 | 2002 Chevrolet TrailBlazer

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