Headlights Staying on - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
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post #1 of 45 (permalink) Old 02-01-2012, 04:01 PM Thread Starter
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Headlights Staying on

Ok so some of you know I had this problem come up about this time last year but its back again. My old thread was locked and it was in the wrong section anyways so here is the entire run down for the new people to the forum. Last time I drove pulling the fuses because no dealer within fifty miles could come up with a solution to fix it. Then I came to the forums and found out it was either the fuse box or the BCM started with the fuse box and it seem to fix it till today. I drove to work today when I get out of the car the lights are on so I get back in to shut them off and nothing helps so I popped the hood to pull the fuses so the battery won't be dead when I get off and nothing happens so I pulled the fuses to the BCM and again nothing happens. The battery is disconnected right now when I get off I am going to try and fix it in the dark so any thoughts on where to start it has to be a ground feeding back or something. Sorry for the long post but its getting old and I wanted to give you guys as much info as possible so maybe someone can help me.
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post #2 of 45 (permalink) Old 02-01-2012, 05:05 PM
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We have automatic headlights. They turn off after about 30-45 seconds after the car is shut off.
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post #3 of 45 (permalink) Old 02-01-2012, 05:43 PM
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Which fuse did you pull? DRL would be a 10Amp fuse first one from the firewall after 8 relays. Did you try pulling handbrake, this is suppose to turn DRL off.

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post #4 of 45 (permalink) Old 02-01-2012, 06:30 PM Thread Starter
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The DRL is not the right one found out it the PRK that needs pulled but the headlight need to go off without pulling the fuses can anyone tell me where the ground for the headlights is.
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post #5 of 45 (permalink) Old 02-01-2012, 06:31 PM
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There is also a DRL relay somewhere that might be sticking on. This relay series the low beam filaments. This is why both DRL stop working when a low beam burns.

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post #6 of 45 (permalink) Old 02-01-2012, 06:36 PM Thread Starter
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the relay is built into the fuse box and that $318 and I just replaced it like 8 months ago
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post #7 of 45 (permalink) Old 02-01-2012, 06:48 PM
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If you pull one low beam fuse does it kill the lights? Or like you said it might be the park neutral switch but I doubt that because once the key is out this switch is not suppose to have power.

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post #8 of 45 (permalink) Old 02-01-2012, 06:55 PM Thread Starter
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The go off one at a time when you pull the fuses they also go off if you push the brakes real hard. I thing its getting power through a ground or something like that.
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post #9 of 45 (permalink) Old 02-01-2012, 07:02 PM
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Well you have eliminated DRL at least.

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post #10 of 45 (permalink) Old 02-01-2012, 07:07 PM Thread Starter
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Where can I get a wiring diagram none of the parts stores around me have a manual for the cobalt and I don't want to wait till monday to start trouble shooting it.
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