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Wrenchtech, ASE Certified Technician
Category: Chevy
Satisfied Customers: 1403
Experience:  40 years experience with ASE certification as Master Technician with L1--Repair Shop Owner
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I have a 2005 Chevy Silverado, the cigarette lighter and the

Resolved Question:

I have a 2005 Chevy Silverado, the cigarette lighter and the auxillary 12v power supply stopped working recently. They stopped working at different times. I checked the fuses, they seem to be ok, though I was having a little difficulty figuring out which fuse it was. I do not have an owners manual.
Submitted: 7 years ago.
Category: Chevy
Expert:  Wrenchtech replied 7 years ago.
It will be the "Aux Pwr 2" fuse in the under dash fuse box shown in the pic.


You need to test for power in and out of that fuse to determine what's wrong.

Customer: replied 7 years ago.
I already tried that, I replaced it and it still doesnt' work
Expert:  Wrenchtech replied 7 years ago.
Read my edit. You have to test it for power in and out of the fuse.
Customer: replied 7 years ago.
Not exactly sure how u want me to do that. But I took a multimeter, tested for DC voltage at the cigarette lighter nothing. I took the fuse out and tested for voltage, got nothing. Just to make sure i was doing it right, I took out the Blinker fuse and put the multimeter on that, when I hit the blinker i got 12V.
Expert:  Wrenchtech replied 7 years ago.
You can test both sides of the fuse with it in place. There are 2 metal contacts exposed at the top of the fuse when it's installed. You should see power on both sides. The key may have to be on too.
Customer: replied 7 years ago.
Got 12V on each side, so I guess its not a fuse problem...
Expert:  Wrenchtech replied 7 years ago.
That means the problem is either in the wiring between the socket and the fuse box or the socket itself is bad.
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