Roadside emergencies – FORD 2010 F-550 v.2 User Manual
Page 314
Fuse/Relay
Location
Fuse Amp
Rating
Protected Circuits
55
Relay
Trailer tow park lamps
56
Relay
Trailer tow battery charge
57
Relay
Power Distribution Box (PDB) bus
(fuses 67, 69, 71, 73, 75, 77)
SJB Run /Start bus (Fuses 29–37, 46)
58
Relay
ESOF hi-lo
59
Relay
PCM power bus (Fuses 68, 70, 72, 74,
76) (Gasoline engines only)
60
Diode
One-touch start (OTIS)
61
Diode
A/C clutch
62
Diode
Fuel pump
63
15A**
Trailer tow back-up lamps
64
5A**
Mirror marker lamps
65
—
Not used
66
—
Not used
67
—
Not used
68
—
Not used
69
—
Not used
70
10A**
Gasoline engines: A/C clutch relay
coil, Refrigerant containment switch,
Heated PCV
Diesel engine: A/C clutch relay coil,
Clutch switch, Fuel pump cooler, A/C
cycle pressure switch
71
5A**
Fuel pump relay diode, PCM/ECM
Run/Start power
72
15A**
Gasoline engines: Ignition coils
Diesel engine: Engine TCM
73
2A**
Reverse Camera System (RCS)
Roadside Emergencies
314
2010 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)