Question about 2004 Chevrolet TrailBlazer

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Lo beam headlights.not working is not fuse a What else could it be?

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Could be low beam bulbs need replacing.

Posted on Dec 30, 2010


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 132 Answers

SOURCE: Low beam headlight is out, doesn't look like a fuse

Check the Headlight Switch. If your headlights come on automatically check the headlight sensor and its associated relay.

Posted on Mar 26, 2009

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SOURCE: Jeep Headlights not working. High beam works

had the same problem on my 92....check under the hood on the drivers side,towards the front,there is a "junction box" with all of the lighting wires connecting from the switches to the lights.My wires were all corroded inside,so I cleaned the ends and bought a new box from the local electronic supply store.The problem has not come back.


Posted on Jul 15, 2009

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SOURCE: My headlights don't work on low beam, but will


Posted on Oct 26, 2009

Testimonial: "I will know tomorrow if that's the problem. Just getting home now with the high beams on all the way. Thanks in advance."

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SOURCE: low beam headlights not working. High beams working. Fuses are OK

Have the same problem with my 05. Do you have fog lights as those will not turn on either. I thought it was the switch on the stalk but that worked the same when I changed it out. I did notice a bit of a melted spot. Relays and fuses good. I'm guessing a bad ground but WHERE

Posted on Mar 29, 2010

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SOURCE: parking lights turn on, headlights

If you ran a separate wire to the lights, it's not a ground problem. looks like you may have a bad switch.

or bad wire. you can use an ohm meter to check the wire from the switch to the light. a test light is

easier. test for voltage at both ends of the fuse, at the switch and the wire before the light. check the

connection at the light, sometimes the connections get corroded and voltage will not pass thru. good luck!

Posted on Feb 13, 2011

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Where is the right headlight low beam relay switch on a 2014 Honda Ridgeline

Hope this helps a little. There are fuses for left and right lo beams, did you use a test light and check voltage on proper fuse. If the lo beam works on the other side, the problem isn't the relay. might be the fuse or wiring circuit? Just my opinion.
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I have a 2005 buick lacrosse. The low beam headlights have stopped working again(2nd time) The first time, even though the warning light was on, nothing was found wrong in the system. The headlights just...

Click on the link. What testing have you done. Did you check for voltage and ground at the lo beams? Use a test light. In the diagram, the top wire for low beams is voltage, the bottom wire is ground. There are lo beam fuses, check those. Check voltage at fuse with lo beams turned on. It might be possible to unplug the low beam relay and use proper jumper wire on proper terminals to see if lo beams will operate. If they operate with the jumper but not w/o, check the control side of relay.
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Lo-beams not working

Hi manolonusa,

It may have something to do with your headlights, but my first thought is they are just a symptom of another problem.

I'd check on the alternator. If the ALT fails, a good battery will keep the car running for quite a while. Sometimes the first symptoms are the dimming of the headlights. So:
  • Make sure belts are tight.
  • Get a meter and test the output voltage while its running (be careful when doing this).
  • Check the voltage at the battery when stopped and when running.
  • Same thing with headlights on and off.
Get back to me with the results. Once the alternator is ruled out we can check a possible headlight problem. But this way, at least you won't be stranded somewhere with a dead battery.

Sep 05, 2008 | 2004 Mazda 6

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