Driver side headlamp doesn't turn on when running - Chevrolet Forum - Chevy Enthusiasts Forums

Driver side headlamp doesn't turn on when running


mbranton's Avatar
CF Beginner

Join Date: Mar 2018
Posts: 2

March 16th, 2018, 8:24 PM   #1  
Driver side headlamp doesn't turn on when running

I have a 2010 Chevy cobalt. When I unlock it with the keyfob, both headlamps turn on. When I turn the car on, the driver side lamp turns off.
I tested the fuses and there is no issue. I swapped out the lamp and I still haven't fixed the issue.
Does anyone have an idea of what I should be looking for- wiring harness issue?

 
tech2's Avatar
CF Monarch

Join Date: Mar 2011
Posts: 5,745

March 16th, 2018, 10:19 PM   #2  
so left daytime running light is out
-everything works with the full light system turned on; highbeam and low beam?

you checked the low beam fuse for each headlamp? cause the dtrl for the left headlamp runs thru both the right and left low beam fuses. the dtrl right side will work even if the right low beam fuse is blown


Last edited by tech2; March 16th, 2018 at 10:23 PM.
 
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