FORD 2007 F-550 v.1 - Manual (Page 215)

The high-current fuses and relays are coded as follows.
Fuse/Relay
Location
Fuse Amp
Rating
Power Distribution Box
Description
1 30A* Wipers
2 40A* Blower
3 30A* Electronic Shift on the Fly
(ESOF)
4 — Not used
5 50A* Injector Driver Module (IDM)
(Diesel engine only)
6 — Not used
7 — Not used
8 — Shunt
9 20A** Trailer tow turn signals
10 10A** Powertrain Control Module (PCM)
keep alive power, Canister vent
solenoid (gasoline engine only)
11 10A** Anti-lock Brake System (ABS)
12 2A** Brake pressure switch
13 15A** Daytime Running Lamps (DRL)
2007 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus)
Roadside Emergencies
215