Understanding the fuse box diagram is vital for troubleshooting electrical issues and ensuring your vehicle operates flawlessly.
Throughout this blog, we’ll explore the 2005 Ford F550 fuse box diagram. Let’s get started.
Table of Contents
Standard fuse amperage rating and 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 |
2005 Ford F550 Fuse Box Diagram (Power Distribution Box)
Located in the engine compartment of the 2005 F550, the power distribution box serves as a vital hub for the electrical system of your vehicle. Within this box, a set of high-current fuses diligently protect the main electrical systems of your vehicle from potential overloads, demonstrating their purposeful design and importance.
Follow these steps to open the hood and access the Power Distribution Box:
- Start by locating the hood release handle beneath the bottom left corner of the instrument panel inside the vehicle.
- Proceed to the front of the vehicle and locate the auxiliary latch positioned under the right center of the hood. Release the auxiliary latch by sliding the handle.
- With the auxiliary latch released, lift the hood upwards until the lift cylinders engage and hold it open.
| Fuse/Relay Location | Fuse Amp Rating | Power Distribution Box Description |
| 1 | 30A* | Wipers |
| 2 | 40A* | Blower |
| 3 | 30A* | Electronic Shift on the Fly(ESOF) |
| 4 | — | Not used |
| 5 | 50A* | Injector Driver Module (IDM)(Diesel engine only) |
| 6 | — | Not used |
| 7 | 30A* | Horizontal Fuel Conditioner Module (HFCM) (Diesel engine only) |
| 8 | — | Not used |
| 9 | 20A** | Trailer tow turn signals |
| 10 | 10A** | Powertrain Control Module (PCM) keep alive power, Canister vent solenoid (gasoline engine only) |
| 11 | 10A** | Anti-lock Brake System (ABS) |
| 12 | 2A** | Brake pressure switch |
| 13 | 15A** | Daytime Running Lamps (DRL) |
| 14 | — | Not used |
| 15 | 15A** | IDM logic (Diesel engine only) |
| 16 | — | Not used |
| 17 | 10A** | A/C clutch |
| 18 | 10A** | IDM relay (Diesel engine only) |
| 19 | — | Not used |
| 20 | 10A** | Trailer tow back-up lamps |
| 21 | — | Not used |
| 22 | 60A*** | ABS (Coils) |
| 23 | 60A*** | ABS (Pump) |
| 201 | 1⁄2 ISO relay | Trailer tow right turn signal/stop lamp |
| 202 | 1⁄2 ISO relay | Trailer tow left turn signal/stop lamp |
| 203 | 1⁄2 ISO relay | A/C clutch |
| 204 | — | Not used |
| 205 | 1⁄2 ISO relay | DRL #1 |
| 206 | 1⁄2 ISO relay | DRL #2 |
| 301 | Full ISO relay | DRL #3 |
| 302 | Full ISO relay | HFCM |
| 303 | Full ISO relay | Blower |
| 304 | High-current relay | IDM (Diesel engine only) |
| * Cartdrige Fuse ** Mini Fuses *** Maxi fuse | ||
Passenger Compartment Fuse Panel
Discover the convenience of accessing the fuse panel in your vehicle, cleverly positioned below and to the left of the steering wheel, near the brake pedal.
Unveiling the fuses requires the simple act of removing the panel cover. Just utilize the finger slots located atop the panel, gently pulling it downward.
As you do so, the top clips gracefully disengage, allowing the panel to descend with ease.
| Fuse/RelayLocation | Fuse AmpRating | Passenger Compartment FusePanel Description |
| 1 | 15A* | Adjustable pedals |
| 2 | 10A* | Cluster |
| 3 | 10A* | Upfitter #3 |
| 4 | 20A* | Power point (Instrument panel) |
| 5 | 10A* | Upfitter #4 |
| 6 | — | Not used |
| 7 | 30A* | High beam headlamps,Flash-to-pass |
| 8 | 20A* | Back-up lamps |
| 9 | — | Not used |
| 10 | — | Not used |
| 11 | 20A* | Radio (Main) |
| 12 | 20A* | Cigar lighter, OBD II |
| 13 | 5A* | Power mirrors |
| 14 | — | Not used |
| 15 | — | Not used |
| 16 | — | Not used |
| 17 | 15A* | Exterior lamps |
| 18 | 20A* | Flasher, Brake On-Off (BOO) lamps |
| 19 | 10A* | Body Security Module (BSM)(Security) |
| 20 | 15A* | Trailer tow Electric BrakeController (EBC) |
| 21 | 20A* | Heated seats |
| 22 | 20A* | Engine control |
| 23 | 20A* | Engine control (gasoline engine only)/Climate control (Diesel engine only) |
| 24 | 15A* | Tow haul, Blower relay, ElectronicAutomatic Temperature Control(EATC) |
| 25 | — | Not used |
| 26 | 10A* | Air bags |
| 27 | 15A* | Ignition switch RUN feed |
| 28 | 10A* | Trailer tow EBC logic |
| 29 | 10A* | Customer access |
| 30 | 15A* | High beam headlamps |
| 31 | 15A* | 4×4 |
| 32 | 5A* | Radio (start) |
| 33 | 15A* | Cluster, 4×4, Wipers |
| 34 | 10A* | BOO switch (Low current) |
| 35 | 10A* | Instrument cluster |
| 36 | — | Not used |
| 37 | 15A* | Horn |
| 38 | 20A* | Trailer tow park lamps |
| 39 | 15A* | Heated mirrors |
| 40 | 20A* | Fuel pump |
| 41 | 10A* | Instrument cluster |
| 42 | 15A* | Delayed accessory |
| 43 | 10A* | Fog lamps |
| 44 | — | Not used |
| 45 | 10A* | Ignition switch RUN/START feed |
| 46 | 10A* | Left-hand low beam headlamp |
| 47 | 10A* | Right-hand low beam headlamp |
| 48 | — | Not used |
| 101 | 30A** | Trailer tow EBC |
| 102 | 30A** | BSM (Door locks) |
| 103 | 30A** | Ignition switch |
| 104 | — | Not used |
| 105 | — | Not used |
| 106 | — | Not used |
| 107 | 20A** | Trailer tow battery charge |
| 108 | 30A** | Upfitter #1 |
| 109 | 30A** | Upfitter #2 |
| 110 | 30A** | Ignition switch |
| 111 | — | Not used |
| 112 | 30A** | Power seat (Driver) |
| 113 | 30A** | Starter |
| 114 | 30A** | Power seat (Passenger) |
| 115 | 20A** | Upfitter control |
| 116 | 30A** | Ignition switch |
| 210 | — | Not used |
| 211 | 1⁄2 ISO relay | Back-up lamps |
| 212 | — | Not used |
| 301 | Full ISO relay | Trailer tow battery charge |
| 302 | Full ISO relay | Powertrain Control Module (PCM) |
| 303 | — | Not used |
| 304 | — | Not used |
| 305 | Full ISO relay | Upfitter control |
| 306 | Full ISO relay | Delayed accessory |
| 307 | Full ISO relay | Starter |
| 601 | 30A circuit breaker | Delayed accessory, Power windows, Moonroof |
| 602 | — | Not used |
| * Mini fuse ** Cartridge fuse | ||
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.