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Reverse lights not working

Tiny
BUCK211
  • MEMBER
  • 2012 FORD F-350
  • 6.2L
  • V8
  • 4WD
  • AUTOMATIC
  • 120,000 MILES
The issue Ia m having is my reverse lights do not work at all. I am having issues finding any information on the fuse boxes in this truck. I know the bulbs are good but cannot check fuses because I do not know which is which. A diagram of the fuse box would be greatly appreciated.
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Saturday, December 16th, 2017 AT 10:57 AM

2 Replies

Tiny
CARADIODOC
  • MECHANIC
  • 33,741 POSTS
If you just want to check fuses, it is faster to test each one with a test light rather than to waste time digging through the service manual. Turn on appropriate switches so the circuit should be on, then probe the two test holes on the top of spade-type fuses. If you find zero volts on both points, that circuit is turned off. If you find twelve volts on both points, that fuse is good. You are looking for any fuse that has twelve volts on one test point and zero volts on the other.

In the first drawing, fuse "F70" is for the backup light relay. Iti s a 10-amp fuse.

In the second drawing, fuse "F15" is for the backup lights, the backup light relay, and the high-mounted stop light. That is a 15-amp fuse.

I do not know if the third drawing will work. I tried to piece together the drawings and lists.
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Saturday, December 16th, 2017 AT 10:31 PM
Tiny
BUCK211
  • MEMBER
  • 34 POSTS
Awesome Ty for the info. I'll let us know how it works out.
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Monday, December 18th, 2017 AT 10:52 AM

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