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 power |
| 37 | 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 switch |
| 71 | 5A** | Fuel pump relay diode, PCM/ECMRun/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 | ||
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 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.