In this technical article, we understand the significance of the fuse box diagram, unraveling its mysteries and empowering you with the knowledge to become a master of your vehicle’s electrical domain.
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 | Yellow |
| 70A | — | — | Tan | — | Brown |
| 80A | — | — | Natural | Black | Black |
2010 Ford F550 Fuse Box Diagram (Power Distribution Box)
The power distribution box of the 2010 F550, situated in the engine compartment, acts as a vital central hub for high-current fuses that serve as protectors for the primary electrical systems of your vehicle. These fuses are instrumental in ensuring the safe operation of electrical components by preventing overloads and potential damage.
Here are the steps to open the hood:
- Inside the vehicle, pull the hood release handle located under the bottom left corner of the instrument
panel. - Go to the front of the vehicle and release the auxiliary latch located below the passenger side of the
grille, next to the headlamp. Slide the handle to release the auxiliary latch. - Lift the hood until the lift cylinders hold it open.
If you have recently disconnected and reconnected the battery, it is recommended to refer to the Maintenance chapter of the Owner’s Manual for precise instructions on how to replace the vehicle’s battery.
| No | Fuse Amp. Rating | 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* | Anti-lock brake system (ABS) module (Pump) |
| 7 | 30A* | Upfitter auxiliary switch #1 |
| 8 | 30A* | Upfitter auxiliary switch #2 |
| 9 | 40A* | ABS module (Coil) |
| 10 | 20A* | Instrument panel power point/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 | 10 A** | 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 | 10 A** | Gasoline engines: Powertrain control module (PCM) keep alive power, Canister vent Diesel engine: Engine control module (ECM) keep alive power |
| 37 | 10 A** | 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, Air ride seats |
| 46 | 40 A* | 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 | 10 A** | 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 swatch |
| 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: Vehicle power (VPWR): Heated exhaust gas oxygen sensor, CMS, Mass air flow sensor, Electronic vapor management valve, CMCV, Variable cam timing, IMTV Diesel engine: VPWR: Engine loads |
| 75 | 5A** | Back-up relay coil power |
| 76 | 20A** | Gasoline engines: VPWR: PCM Diesel engine: VPWR: ECM |
| 77 | 10 A** | ABS module logic |
| * Cartridge fuses ** Mini fuses |
2010 Ford F550 Passenger Compartment Fuse Panel Diagram
The Passenger Compartment Fuse Panel in the 2010 Ford F550 is conveniently situated in the passenger’s footwell, offering easy access to the fuses that control various electrical systems within the vehicle.
To reach the fuses, effortlessly remove the panel cover by gently pulling it towards you. The clips will disengage, allowing the panel to open smoothly, granting you access to the fuses housed inside.
When it comes to removing a fuse, rely on the fuse puller tool thoughtfully provided on the fuse panel cover. This purpose-built tool ensures the straightforward extraction of fuses, guaranteeing a hassle-free experience when replacing or inspecting them.
| № | Amp Rating | 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-shift interlock (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 | Climate control, PTC control |
| 38 | 20A | Subwoofer |
| 39 | 20A | Radio, Navigation radio and amplifier |
| 40 | 20A | 4×4 module, Satellite radio module, SYNC®, GPS |
| 41 | 15A | Radio, Auto dimming 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 Circuit Breaker | Power windows, Moon roof, Power rear sliding window |
| 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.