Fuse location

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Oct 10, 2021 | 03:55 PM

Watcher58

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Laughing Gas

Joined: Nov 2014

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Fuse location

I have a 2003 V-10 and I assume there is a fuse for the backup lights. The crappy #@!%&%$@# manual only shows one for the diesel at position 8. I swear this X has been nothing but a PIA for weird stuff. Anyone know? Thanks

Oct 10, 2021 | 04:45 PM

Tunafish389

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Fuse 27 for sure for a 2002 not sure if they changed in 2003.

Oct 10, 2021 | 06:09 PM

Watcher58

Thread Starter

Laughing Gas

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Thanks you got it. My manual says 27 is ignition switch run feed. I kid u not. Weird stuff happens

Oct 10, 2021 | 07:24 PM

projectSHO89

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Joined: Jan 2004

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From: St Louis

F27 powers a whole lot of things, not just the backup lights. If it were blown, you'd be experiencing a lot more issues that are far more obvious than no reversing lamps. You did not mention any of those so it's highly unlikely that the fuse is your issue.

CJB F27 is a feed off the ignition switch that is a HOT IN RUN circuit, therefore its "description" in the owner's manual.

Oct 10, 2021 | 09:37 PM

Tunafish389

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Here this might help for future reference again for 2002 but might apply to other years. Page 93-1 dealt with the reverse lights.

Attached Images

2002 F250 FULL WIRING DIAGRAMS.pdf (4.53 MB, 1525 views)

Oct 11, 2021 | 08:02 AM

WE3ZS

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Joined: Jul 2010

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From: Media PA

Quote:

Originally Posted by Watcher58

Reverse lights on the EX or for a trailer? I ask because the diesel EXs came setup for trailer reverse lights but the gassers have to add a relay and fuse to make them work.

Oct 11, 2021 | 02:13 PM

01__Excursion

Cargo Master

Joined: Nov 2017

Posts: 3,109

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From: Rock Hill, SC

Quote:

Originally Posted by WE3ZS

Reverse lights on the EX or for a trailer? I ask because the diesel EXs came setup for trailer reverse lights but the gassers have to add a relay and fuse to make them work.

Is the wire for reverse lights that you refer to actually there to be used in reverse to trigger a surge brake solenoid? Or, either/or?

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Oct 11, 2021 | 04:14 PM

Tunafish389

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Joined: Jan 2019

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I know my gassed has reverse trailer lights, maybe someone added before I got it. If you look at the pdf 13-5 it shows relay k357 and fuse 38 for the reverse trailer lights.