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Cigarette lighter fuse location

Tiny
ZOSO4G
  • MEMBER
  • 2004 FORD F-250
My power point works but my cigarette lighter does not.I plugged in a power converter into my POWER POINT to see if it would charge dewalt batteries.(Mistake)The fuse diagram shows #20 as the cigarette fuse but there is no fuse in this spot. The crazy thing is the power point works but the cigarette lighter does not now. I assume they are in series.
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Tuesday, March 8th, 2011 AT 11:50 AM

7 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
Every power point is powered by a separate fuse. The lighter is power by fuse # Check fuse #F2.12 ((20amp)

Here is a guide and the fuse locations below.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Tuesday, March 8th, 2011 AT 12:45 PM
Tiny
ZOSO4G
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Wrenchtech, I posted the incorrect fuse # that I checked. In my owners manual it does indeed designate #12 as the correct cigarette lighter fuse. I did check this the other day. I have looked online and it seems that 20 amp is the general thought I pulled all 20 amp fuses and inspected. All good. I am obviously trying to avoid tearing into the dash panel but any other ideas would be greatly appreciated. I am above average at mechanical but below average at electrical. This question seems to be all over the net with no absolute answer.

Thanks,
Mike
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Tuesday, March 8th, 2011 AT 3:17 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
It's a blown fuse. The way you check fuses is using a test light and test both ends of the fuse while it's in the socket looking for power at both ends. There is an access hole at each end to probe for power. ALL fuses should be checked at the same time. Some will show no power and that's OK as long as it's the same at both ends.
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Tuesday, March 8th, 2011 AT 3:25 PM
Tiny
ZOSO4G
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  • 4 POSTS
Ok, Now I have traced. Did voltage tests ect. Have removed the lighter and I find that due to the original issue of hooking up the converter that I must have melted something inside the cigarette lighter. If I unhook it from its wiring harness and put a fuse in I am fine but as soon as I hook up the lighter socket to the harness it blows the fuse every time. Do you agree wrenchtech?
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Tuesday, March 8th, 2011 AT 5:48 PM
Tiny
WRENCHTECH
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Yep, sounds like the socket is shorted out. Leave it disconnected until you can replace it.
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Tuesday, March 8th, 2011 AT 5:51 PM
Tiny
ZOSO4G
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Wrenchtech. Thanks for your reply on this issue. I think im on the right track. Just got to locate a socket.
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Tuesday, March 8th, 2011 AT 8:47 PM
Tiny
WRENCHTECH
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It's a cheap item from the dealer.
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Tuesday, March 8th, 2011 AT 9:19 PM

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