FORD 2007 F-550 v.1 - Manual (Page 211)

The fuses are coded as follows.
Fuse/Relay
Location
Fuse Amp
Rating
Passenger Compartment Fuse
Panel Description
1 15A* Adjustable pedals
2 10A* Cluster
3 10A* Upfitter #3
4 20A* Power point (Instrument panel)
5 10A* Upfitter #4
6 — Not used
7 30A* High beam headlamps,
Flash-to-pass
8 20A* Back-up lamps
9 — Not used
10 — Not used
11 20A* Radio (Main)
12 20A* Cigar lighter, OBD II
13 5A* Power mirrors
14 — Not used
2007 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus)
Roadside Emergencies
211