Why would your car's high beams work but not your low beams?

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Possibly two bulbs, possibly the switch. Get it diagnosed.

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check your fuses for your headlights. i have a '97 accord and installed aftermarket headlights and one day one of my lowbeams wouldn't work but my high beams would be on with my low beams on, and when i switched for the highbeams, my low beams would both go out. you can get a thing at shucks, or even walmart, to check the fuse to see if it's working, very simple to use. :)

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Did you try replacing the one headlight that only works on the high beam mode?

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First check to see if you have a relay. If it dont have one, the problem lies on the dimmer switch. Locate the dimmer switch. On some vehicles the dimmer switch is part of your headlight switch.

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If only one of your headlights is affected then it probably isn't a fuse or relay. A light that is both a low beam and a high beam has two filaments. One of the filaments is probably broken. Replace the headlight and it should fix the problem.

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i did replace the lamp on a 96 sunfire and the low beam still does not function. highbeams work fine, but no low beams on both headlights now.

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I have a similar problem. Both headlights low beam filaments on my WRX STi had blown and the replacement low beam filaments blew too??? So I've still only got high beam which is fine but other drivers are getting a wee bit annoyed (and rightly so)All fuses are good and correct factory ampage. The new bulbs are H4's which is the factory correct bulbs yet low beam filaments gone on both bulbs. I'm bewildered...

First answer by Michael Pinckney. Last edit by ID3413542677. Question popularity: 158 [recommend question]