Fuse/Relay
Location
Fuse Amp
Rating
Power Distribution Box
Description
54 Relay Starter solenoid
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 Starter relay (Gasoline engines
only)
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
2008 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus)
Roadside Emergencies
302
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