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Fuse box diagram (fuse layout), location and assignment of fuses and relays Ford F250, F350, F450, F550 (2008, 2009, 2010).
Checking and Replacing Fuses
Fuses and circuit breakers protect your vehicle’s electrical system from overloading. If electrical parts in your vehicle are not working, the system may have been overloaded and blown a fuse or tripped a circuit breaker. Before you replace or repair any electrical parts, check the appropriate fuses or circuit breakers.
To check a fuse, look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse.
Notice
- Before replacing fuses check that the key has been removed from the ignition and that all the services are switched off and/or disengaged.
- Always disconnect the battery before servicing high current fuses.
- Always replace a fuse with one that has the specified amperage rating. Using a fuse with a higher amperage rating can cause severe wire damage and could start a fire.
- Never replace a broken fuse with anything other than a new fuse. Use always an intact fuse of the same color.
- If a fuse blows again contact a qualified service center.
Passenger Compartment Fuse Box Diagram
The fuse panel is located in the passenger’s footwell. To remove the fuse panel cover, pull the panel toward you. When the clips of the panel disengage, let the panel fall easily.
| № | A | Protected components |
|---|---|---|
| 1 | 30 | Not used (spare) |
| 2 | 15 | Not used (spare) |
| 3 | 15 | Family Entertainment System (FES) |
| 4 | 30 | Not used (spare) |
| 5 | 10 | Keypad illumination, Brake-Shift Interlock (BSI), SPBJB |
| 6 | 20 | Turn signals |
| 7 | 10 | Left headlamp (Low beam) |
| 8 | 10 | Right headlamp (Low beam) |
| 9 | 15 | Interior lighting, Lighted running boards |
| 10 | 15 | Cargo lamp, Puddle lamp, Switch backlight |
| 11 | 10 | Not used |
| 12 | 7.5 | Power mirror switch, Driver power seat (Memory) |
| 13 | 5 | Not used (spare) |
| 14 | 10 | Upfitter relay #3 feed |
| 15 | 10 | Climate control head |
| 16 | 15 | Upfitter Relay #4 Feed |
| 17 | 20 | All lock motor feeds |
| 18 | 20 | Heated seat relay feed |
| 19 | 25 | Not used (spare) |
| 20 | 15 | Adjustable pedals, Datalink |
| 21 | 15 | Fog lamp relay feed, Cornering lamps |
| 22 | 15 | Park lamp relay feed |
| 23 | 15 | High beam headlight relay feed |
| 24 | 20 | Horn relay feed |
| 25 | 10 | Power telescoping mirror switch Demand lamps - underhood and illuminated visor (battery saver) |
| 26 | 10 | Cluster |
| 27 | 20 | Ignition switch feed, Passenger compartment fuses 28, 42, 43, 44, and 45, Engine compartment starter relay coil #57 (Diesel engine), Accessory shutoff control module (if equipped) (Diesel engine), Engine compartment starter relay diode (gasoline engines) |
| 28 | 5 | Radio |
| 29 | 5 | Not used (spare) |
| 30 | 5 | Not used (spare) |
| 31 | 10 | Compass |
| 32 | 10 | Restraints Control Module (RCM), Passenger Airbag Deactivation Indicator |
| 33 | 10 | Trailer tow brake controller, Trailer tow battery charge relay coil |
| 34 | 5 | Not used (spare) |
| 35 | 10 | Reverse Sensing System (RSS), 4x4 module, 4x4 solenoid, Traction control switch, Tow/Haul switch (Diesel engine) |
| 36 | 5 | Passive Anti-Theft System (PATS) transceiver, Cluster control |
| 37 | 10 | Dual automatic or Manual climate control, PTC control |
| 38 | 20 | Subwoofer |
| 39 | 20 | Radio, Navigation radio and amplifier |
| 40 | 20 | 4x4 module, Satellite radio module, SYNC, GPS |
| 41 | 15 | Radio, Electrochromatic rear view mirror, Lock switch illumination |
| 42 | 10 | Heated seat relay coil, Upfitter switch relay coils, Heated mirror relay coil |
| 43 | 10 | Fuel tank selector switch, 4x4 module |
| 44 | 10 | Run/Start customer access feed (PTO) |
| 45 | 5 | Front wiper logic, Blower motor relay coil |
| 46 | 7.5 | E/C mirror |
| 47 | 30 | Circuit Breaker: Power windows, Moonroof, Power Sliding Backlite |
| 48 | Delayed accessory | |
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Engine Compartment Fuse Box Diagram
The power distribution box is located in the engine compartment. The power distribution box contains high-current fuses that protect your vehicle’s main electrical systems from overloads.
| № | A | Protected components |
|---|---|---|
| 4 | — | Not used |
| 5 | 30 | Trailer Brake Controller (TBC) |
| 6 | 40 | ABS module (Pump) |
| 7 | 30 | Upfitter auxiliaiy switch #1 |
| 8 | 30 | Upfitter auxiliaiy switch #2 |
| 9 | 40 | ABS module (Coil) |
| 10 | 20 | Cigar lighter |
| 11 | 20 | Instrument panel power point |
| 12 | 15 | Brake On/Off (BOO) relay feed |
| 13 | 5 | Brake switch, Brake switch relay coil, SJB module, 4x4 module |
| 14 | — | Not used |
| 15 | — | Not used |
| 23 | 15 | Heater mirror, Heated spotted mirror |
| 24 | 40 | Blower motor relay |
| 25 | — | Not used |
| 26 | 30 | ESOF relay lo-hi |
| 27 | 50 | Diesel: Glow Plug Control Module (GPCM) #1 |
| 28 | 20 | Heated mirror relay |
| 29 | 30 | Passenger power seat |
| 30 | 10 | A/C dutch relay |
| 31 | 15 | Power fold mirror relay |
| 32 | 20 | Fuel pump relay |
| 33 | 20 | Back-up lamp relay |
| 34 | 25 | Trailer stop/turn relay |
| 35 | 5 | ESOF relay coils |
| 36 | 10 | Gasoline: Powertrain Control Module (PCM) keep alive power, Canister vent |
| Diesel: Engine Control Module (ECM) keep alive power | ||
| 37 | 10 | Diesel: Transmission Control Module (TCM) |
| 38 | — | Not used |
| 39 | 50 | Diesel: ECM power |
| 40 | 30 | Starter relay |
| 41 | 20 | Power point (Center console -Front) |
| 42 | 30 | Trailer park lamp relay |
| 43 | 20 | Power point (Center console - Rear) |
| 44 | 30 | Trailer battery charge relay |
| 45 | 30 | Driver power seat or Memory module, Air ride seat |
| 46 | 40 | Run/Start relay |
| 47 | 50 | Diesel: GPCM #2 |
| 48 | 30 | ESOF relay lii-lo |
| 49 | 30 | Wiper motor |
| 50 | 30 | Gasoline: PCM relay coil, PCM relay |
| 51 | — | Not used |
| 52 | — | Not used |
| 63 | 15 | Trailer tow back-up lamps |
| 64 | 5 | Mirror marker lamps |
| 65 | — | Not used |
| 66 | — | Not used |
| 67 | — | Not used |
| 68 | — | Not used |
| 69 | — | Not used |
| 70 | 10 | Gasoline: A/C clutch relay coil, Refrigerant Containment Switch, Heated PCV |
| Diesel: A/C clutch relay coil, Clutch switch, Fuel pump cooler, A/C cycle pressure switch | ||
| 71 | 5 | Fuel pump relay diode, PCM/E CM Run/Start power |
| 72 | 15 | Gasoline: Ignition coils |
| 15 | Diesel: Engine TCM | |
| 73 | 2 | Reverse Camera System (RCS) |
| 74 | 20 | Gasoline: VPWR: Heated exhaust gas oxygen sensor, CMS, Mass air flow sensor, Electronic vapor management valve, CMCV, Variable cam timing, IMTV |
| Diesel: VPWR: Engine loads | ||
| 75 | 5 | Back-up relay coil power |
| 76 | 20 | Gasoline: VPWR: PCM |
| Diesel: VPWR: ECM | ||
| 77 | 10 | ABS module logic |
| 60 | Gasoline: Starter relay | |
| or | ||
| One-touch start (OTIS) | ||
| 61 | A/C clutch | |
| 62 | Fuel pump | |
| 1 | Blower motor/Variable blower control (Dual Zone Climate Control) | |
| 2 | Electronic Shift-on-the-Fly (ESOF) Lo-Hi | |
| 3 | Heater mirror | |
| 16 | A/C clutch | |
| 17 | Wipers | |
| 18 | Gasoline: Fuel Pump Driver Module (FPDM), Fuel injectors | |
| Diesel: Diesel Fuel Control Module (DFCM) | ||
| 19 | Back-up lamps, Reverse Sensing System (RSS), Engine compartment fuse 63 | |
| 20 | Trailer stop/turn (Left) | |
| 21 | Trailer stop/turn (Right) | |
| 22 | Stop lamps, Center High-Mounted Stop Lamp (CHMSL), TBC, Customer access | |
| 53 | Diesel: PCM power bus (Fuses 68, 70, 72, 74, 76) | |
| 54 | Starter solenoid | |
| 55 | Trailer tow park lamps | |
| 56 | Trailer tow battery charge | |
| 57 | Power Distribution Box (PDB) bus (fuses 67, 69, 71, 73, 75, 77) | |
| SJB Run /Start bus (Fuses 29-37, 46) | ||
| 58 | ESOF hi-lo | |
| 59 | Gasoline: PCM power bus (Fuses 68, 70, 72, 74, 76) | |
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