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Mar 05, 2023 - 06:10 AM
Check your wiring to see if theres a shortage somewhere
Changed the headlight assembly on 2010 chev cobalt low beam doesn't work.bulbs good fuses good. Ideas??
I was told maybe headlight relay but I don't find one in my engine compartment fuse box. All four fuses for high and low beam are fine and both low beam worked before any ideas would be appreciated.
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Open Mar 04, 2023 - 09:48 PM
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Answers
Mar 05, 2023 - 05:03 PM
If the bulbs and fuses are both good, then the problem, as mentioned by Bankroll (thanks, Bankroll!), could be with the wiring or the headlight switch itself.
Make sure the wiring is properly connected and there are no loose or damaged wires. Use a multimeter to check the voltage at the headlight connector. If there's no voltage, then there's likely an issue with the wiring.
You may also test the headlight switch to make sure it's working properly. You can use a multimeter, too, to test the continuity of the switch. Or try replacing the switch altogether.
Another thing to ensure if the ground connection. Make sure your headlight assembly is properly grounded. Inspect the ground connection for corrosion or damage.
Now, if you're not comfortable troubleshooting the issue yourself, it's best to take your car to a mechanic. They will have the necessary tools and expertise to diagnose and fix the problem.
It's also possible the headlight assembly itself is defective, in which case you may need to replace it again. If you need a new one, you may check our selection over at CarParts.com for the right assembly for your ride. We offer a lifetime replacement guarantee for our parts. Hope this helps!
Make sure the wiring is properly connected and there are no loose or damaged wires. Use a multimeter to check the voltage at the headlight connector. If there's no voltage, then there's likely an issue with the wiring.
You may also test the headlight switch to make sure it's working properly. You can use a multimeter, too, to test the continuity of the switch. Or try replacing the switch altogether.
Another thing to ensure if the ground connection. Make sure your headlight assembly is properly grounded. Inspect the ground connection for corrosion or damage.
Now, if you're not comfortable troubleshooting the issue yourself, it's best to take your car to a mechanic. They will have the necessary tools and expertise to diagnose and fix the problem.
It's also possible the headlight assembly itself is defective, in which case you may need to replace it again. If you need a new one, you may check our selection over at CarParts.com for the right assembly for your ride. We offer a lifetime replacement guarantee for our parts. Hope this helps!
Mar 09, 2023 - 05:25 PM
The ground around the bulb is not making proper ground to the light bulb
Mar 24, 2023 - 12:32 AM
I have the same issue right now. And I'm dumbfounded on how little information is on the internet on this issue. I replaced bulbs, fuses and switch and still no low beams. They come on once Inna while. I think I read somewhere the relays are non serviceable and we have to get whole new fuse boxes put in on these cobalts to change relays. I don't know what else to do so if you find any information please let me know. I'm about to spend a fortune going to dealer to have them diagnosed this in a couple weeks when I can afford it. I have the rare 4 door 2009 turbo 5 speed model.
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