by Tom Smith
Whether you need to troubleshoot an electrical issue or simply want to know more about your truck’s fuse box, the fuse box diagram will serve as a valuable resource.
So let’s dive in and explore the 2009 Ford F450 Fuse Box Diagram!
Table of Contents
Standard fuse amperage rating and color
| COLOR | |||||
| Fuse rating | Mini fuses | Standard fuses | Maxi fuses | Cartridge maxi fuses | Fuse link cartridge |
| 2A | Grey | Grey | — | — | — |
| 3A | Violet | Violet | — | — | — |
| 4A | Pink | Pink | — | — | — |
| 5A | Tan | Tan | — | — | — |
| 7.5A | Brown | Brown | — | — | — |
| 10A | Red | Red | — | — | — |
| 15A | Blue | Blue | — | — | — |
| 20A | Yellow | Yellow | Yellow | Blue | Blue |
| 25A | Natural | Natural | — | — | — |
| 30A | Green | Green | Green | Pink | Pink |
| 40A | — | — | Orange | Green | Green |
| 50A | — | — | Red | Red | Red |
| 60A | — | — | Blue | — | Yellow |
| 70A | — | — | Tan | — | Brown |
| 80A | — | — | Natural | — | Black |
2009 Ford F450 Fuse Box Diagram (Power Distribution Box)
The power distribution box in the engine compartment is a crucial feature of the 2009 Ford F450. It acts as a protective enclosure for high-current fuses, effectively shielding the primary electrical systems of your vehicle from potential overloads. This ensures the safety and proper functioning of your vehicle’s electrical components.
To access the power distribution box and replace fuses in your F450 truck, you’ll need to follow these steps:
- From inside the vehicle, locate and pull the hood release handle positioned beneath the lower left corner of the instrument panel.
- Proceed to the front of the vehicle and release the auxiliary latch positioned below the passenger side of the grille, adjacent to the headlamp. Slide the handle to release the auxiliary latch.
- Lift the hood upward until the lift cylinders secure it in an open position.
For precise instructions on disconnecting and reconnecting the battery, it is highly advisable to consult the Maintenance chapter in the Owner’s Manual. This chapter provides detailed guidelines on the correct procedures for battery replacement.
Fuse/RelayLocation Fuse AmpRating Protected Circuits 1 Relay Blower motor/Variable blower control(Dual Zone Climate Control) 2 Relay Electronic Shift-on-the-Fly (ESOF)Lo-Hi 3 Relay Heater mirror 4 — Not used 5 30A* Trailer Brake Controller (TBC) 6 40A* ABS module (Pump) 7 30A* Upfitter auxiliary switch #1 8 30A* Upfitter auxiliary switch #2 9 40A* ABS module (Coil) 10 20A* Cigar lighter 11 20A* Instrument panel power point 12 15A** Brake On/Off (BOO) relay feed 13 5A** Brake switch, Brake switch relay coil,SJB module, 4×4 module 14 — Not used 15 — Not used 16 Relay A/C clutch 17 Relay Wipers 18 Relay Fuel Pump Driver Module (FPDM),Fuel injectors (Gasoline engines),Diesel Fuel Control Module (DFCM)(Diesel engine) 19 Relay Back-up lamps, Reverse Sensing System (RSS), Engine compartment fuse 63 20 Relay Trailer stop/turn (Left) 21 Relay Trailer stop/turn (Right) 22 Relay Stop lamps, Center High-Mounted Stop Lamp (CHMSL), TBC, Customer access 23 15A** Heater mirror, Heated spotted mirror 24 40A* Blower motor relay 25 — Not used 26 30A* ESOF relay lo-hi 27 50A* Glow Plug Control Module (GPCM) #1(Diesel engine only) 28 20A* Heated mirror relay 29 30A* Passenger power seat 30 10A** A/C clutch relay 31 15A** Power fold mirror relay 32 20A** Fuel pump relay 33 20A** Back-up lamp relay 34 25A** Trailer stop/turn relay 35 5A** ESOF relay coils 36 10A** Gasoline engines: Powertrain Control Module (PCM) keep alive power, Canister vent
Diesel engine: Engine ControlModule (ECM) keep alive power37 10A** Transmission Control Module (TCM)(Diesel engine only) 38 — Not used 39 50A* ECM power (Diesel engine) 40 30A* Starter relay 41 20A* Power point (Center console – Front) 42 30A* Trailer park lamp relay 43 20A* Power point (Center console – Rear) 44 30A* Trailer battery charge relay 45 30A* Driver power seat or Memory module 46 40A* Run/Start relay 47 50A* GPCM #2 (Diesel engine only) 48 30A* ESOF relay hi-lo 49 30A* Wiper motor 50 30A* PCM relay coil, PCM relay (Gasoline engines only) 51 — Not used 52 — Not used 53 Relay PCM power bus (Fuses 68, 70, 72, 74,76) (Diesel engine only) 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 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 switch71 5A** Fuel pump relay diode, PCM/ECMRun/Start power 72 15A** Gasoline engines: Ignition coils
Diesel engine: Engine TCM73 2A** Reverse Camera System (RCS) 74 20A** Gasoline engines: VPWR: HEGO,CMS, MAFS, EVMV, CMCV, VCT,IMTV
Diesel engine: VPWR: Engine loads75 5A** Back-up relay coil power 76 20A** Gasoline engines: VPWR: PCM
Diesel engine: VPWR: ECM77 10A** ABS module logic * Cartridge fuses ** Mini fuses
Passenger Compartment Fuse Panel
The passenger compartment fuse panel in the 2009 Ford F450 can be found in the footwell area. To access the fuses, simply remove the cover of the panel.
To remove the cover, pull it towards you. Once the clips disengage, let the panel fall gently.
If you need to remove a fuse, use the fuse puller tool provided on the cover of the fuse panel.
| Fuse/RelayLocation | Fuse AmpRating | Protected Circuits |
| 1 | 30A | Not used (spare) |
| 2 | 15A | Not used (spare) |
| 3 | 15A | Family Entertainment System (FES) |
| 4 | 30A | Not used (spare) |
| 5 | 10A | Keypad illumination, Brake-ShiftInterlock (BSI), SPBJB |
| 6 | 20A | Turn signals |
| 7 | 10A | Left headlamp (Low beam) |
| 8 | 10A | Right headlamp (Low beam) |
| 9 | 15A | Interior lighting, Lighted running boards |
| 10 | 15A | Cargo lamp, Puddle lamp, Switch backlight |
| 11 | 10A | Not used (spare) |
| 12 | 7.5A | Power mirror switch, Driver power seat(Memory) |
| 13 | 5A | Not used (spare) |
| 14 | 10A | Upfitter relay #3 feed |
| 15 | 10A | Climate control head |
| 16 | 15A | Upfitter Relay #4 Feed |
| 17 | 20A | All lock motor feeds |
| 18 | 20A | Heated seat relay feed |
| 19 | 25A | Not used (spare) |
| 20 | 15A | Adjustable pedals, Datalink |
| 21 | 15A | Fog lamp relay feed, Cornering lamps |
| 22 | 15A | Park lamp relay feed |
| 23 | 15A | High beam headlight relay feed |
| 24 | 20A | Horn relay feed |
| 25 | 10A | Power telescoping mirror switch Demand lamps – underhood and illuminated visor(battery saver) |
| 26 | 10A | Cluster |
| 27 | 20A | 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 | 5A | Radio |
| 29 | 5A | Not used (spare) |
| 30 | 5A | Not used (spare) |
| 31 | 10A | Not used (spare) |
| 32 | 10A | Restraints Control Module (RCM),Passenger Airbag Deactivation Indicator |
| 33 | 10A | Trailer tow brake controller, Trailer tow battery charge relay coil |
| 34 | 5A | Not used (spare) |
| 35 | 10A | Reverse Sensing System (RSS), 4×4 module, 4×4 solenoid, Traction control switch, Tow/Haul switch (Diesel engine) |
| 36 | 5A | Passive Anti-Theft System (PATS) transceiver, Cluster control |
| 37 | 10A | Dual automatic or Manual climate control, PTC control |
| 38 | 20A | Subwoofer |
| 39 | 20A | Radio, Navigation radio and amplifier |
| 40 | 20A | 4×4 module, Satellite radio module,SYNC |
| 41 | 15A | Radio, Electrochromatic rear view mirror,Lock switch illumination |
| 42 | 10A | Heated seat relay coil, Upfitter switch relay coils, Heated mirror relay coil |
| 43 | 10A | Fuel tank selector switch, 4×4 module |
| 44 | 10A | Run customer access feed (PTO) |
| 45 | 5A | Front wiper logic, Blower motor relay coil |
| 46 | 7.5A | Not used (spare) |
| 47 | 30A CircuitBreaker | Power windows, Moon roof, PowerSliding Backlite |
| 48 | Relay | Delayed accessory |
Tom Smith
Tom Smith is a passionate car mechanic and automotive enthusiast, specializing in the intricate world of car fuse boxes. With years of hands-on experience under the hood, he has earned a reputation as a reliable expert in his field. As the founder and content creator of the popular blog website 'carsfuse.com,' Tom has dedicated himself to sharing his extensive knowledge of car fuse boxes and electrical systems with the world.
