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06 Cobalt LT 2.2 The problem is the driver side running lights won't stay on after key fob unlocks car, after the car is started. They work with the hazards on, left turn signal, or when I brake (tail light). Any idea on which fuse/relay or is there a wire diagram worth looking at? Thanks!
 

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Sounds like you just need a new bulb! The bulbs have two different filaments in them. One filament is the "marker or Day running" while the other is for turn signals and for hazards. They also blink when the key fob is used.
Try checking the turn signal bulb and look to see if both filaments are together.(the headlamp assemblies use an 8mm i believe and a flathead can take off the plastic locks on the bumper.)
The bulb is a 3157a, 3157a LL, or any amber 3157. (a stands for amber color)

These are what 3157 bulbs look like. you can see the two filaments inside them, the one on the right is the one you will need(amber colored)!

---------- Post added at 02:52 AM ---------- Previous post was at 02:46 AM ----------

If you need help taking out the headlamps to get to the bulbs here is a link showing what you need to remove!
https://www.youtube.com/watch?v=ww0l3WB0eWI


If you need any more help let me know! Also let me know how it goes!
 

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The 06 has a coloured lens so he can use any 3157.
 

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Just realized that =P so any 3157 will work! (both of my headlights are custom on my cars and i remember ditching the clear bulbs. now i know why!)
 

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08 and up have no amber lens though
 

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Now that makes more sense. i had my 08 ones in my 06, and then got custom ones for both, so i have 4 1/2 sets laying around now ~.0

just joined the site last night and im already learning new stuff! =D
 
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