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Fuse/Relay
Location
Fuse Amp
Rating
Protected Circuits
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)
74 20A** Gasoline engines: VPWR:
HEGO, CMS, MAFS, EVMV,
CMCV, VCT, IMTV
Diesel engine: VPWR: Engine
loads
75 5A** Back-up relay coil power
76 20A** Gasoline engines: VPWR: PCM
Diesel engine: VPWR: ECM
77 10A** ABS module logic
* Cartridge fuses ** Mini fuses
CHANGING A FLAT TIRE
If you get a flat tire while driving:
• do not brake heavily.
• gradually decrease the vehicle’s speed.
• hold the steering wheel firmly.
• slowly move to a safe place on the side of the road.
2009 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)
Roadside Emergencies
326