I have a 2003 Chevy Cavalier. One of the low beam headlights is dim. I have changed the bulb and checked the ground wires. Also, the dash lights now flicker on and off at irregular intervals. It sounds like a ground wire has a break in it but I can't find the break. Have checked all the fuses as well and they are all good.

SOURCE: low beam headlights not working

check voltage at switch

SOURCE: headlights

check headlight relay

SOURCE: Electrical low-beam headlight wire on 02 Chevy Trailblazer burnt

Get yourself to a junkyard and pack yourself a light lunch while you're at it. Take a leisurely stroll through the junk that closely resembles the one you need parts for. Go to the closest wiring harness to the headlight assembly, take your time and don't go trying to **** it, and unplug it from the bulbs up front. Make a simple and straight forward swap and do take the time to stop and smell the junkers, it's quite relaxing! Then, you should seriously make sure your new wiring harness is properly grounded (!), which I suspect to have been a contribing factor to your problem of overheating the bulb socket. Do take the time to go over the stuff that should be grounded and make it so. Th e job is quite simple and well worth you taking the time to do it yourself.

SOURCE: chevy cavalier 1996 headlight not working,day

Did you replace the relay for the day time running lights which for some dumb reason is mounted under the front bumper? Climb under and look straight up and you should see it...mine was mounted in about the center (on the frame in front of the radiator. Sounds similar to an issue I had and it cleared up once I replaced the part...had to get from dealer still.

SOURCE: low beam headlight /daytime light are not working

It's on the driver's side. Remove all the plastic & it's in there.Big rectangle, black box,about 1.5" thick,lotta wires.