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Discussion Starter #1
Does this make ANY sense? It's not when I put the lights on either. I don't see it during the day, but at night I see a dull constant light coming from the CEL.

Inspection is due in a week so it's time to figure this out.
 

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Re: My CEL only comes on at night

maybe the cel is on all the time but the bulb contact is corroded.
perhaps its some kind of light leakage from one of the large gauge bulbs.
 

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Discussion Starter #4
Come to think of it, this problem began right after I got my stereo installed. I had no idea an electrical thing like that could cause a CEL??

Where are the grounds located and where else should I check?
 
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