This blog post aims to provide valuable insights into the 2014 Ford F550 fuse box diagram. Our journey will involve discovering the precise location of each fuse, empowering you with the knowledge to confidently navigate your F550’s intricate electrical system.
Table of Contents
Identifying the Fuse Types
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.
 WARNING: Always disconnect the battery before servicing high-current fuses. WARNING: To reduce the risk of electrical shock, always replace the cover to the power distribution box before reconnecting the battery or refilling fluid reservoirs. |
2014 Ford F550 Fuse Box Diagram (Power Distribution Box)
Located in the engine compartment of the 2014 F550, the power distribution box serves as a home for high-current fuses that act as vital safeguards for your vehicle’s essential electrical systems.
These fuses play a crucial role in shielding the main electrical components of your vehicle from overload, ensuring their protection and uninterrupted operation.
| Fuse or relay number | Fuse amp rating | Protected components |
|---|---|---|
| 1 | Relay | Blower motor |
| 2 | — | Not used |
| 3 | Relay | Urea heaters (diesel engine) |
| 4 | — | Not used |
| 5 | Relay | Rear window defroster, Heated mirrors |
| 6 | — | Not used |
| 7 | 50A* | Rear window defroster, Heated mirrors |
| 8 | 30A* | Passenger seat |
| 9 | 30A* | Driver seat |
| 10 | — | Not used |
| 11 | — | Not used |
| 12 | 30A* | Driver smart window motor |
| 13 | — | Not used |
| 14 | — | Not used |
| 15 | Diode | Fuel pump (diesel engine) |
| 16 | — | Not used |
| 17 | 15A** | Heated mirror |
| 18 | — | Not used |
| 19 | — | Not used |
| 20 | — | Not used |
| 21 | — | Not used |
| 22 | 30A* | Trailer tow electric brake |
| 23 | 40A* | Blower motor |
| 24 | — | Not used |
| 25 | 30A* | Wipers |
| 26 | 30A* | Trailer tow park lamps |
| 27 | 25A* | Urea heaters (diesel engine) |
| 28 | — | Buss bar |
| 29 | Relay | Trailer tow park lamps |
| 30 | Relay | A/C clutch |
| 31 | Relay | Wipers |
| 32 | — | Not used |
| 33 | 15A** | Vehicle power 1 |
| 34 | 15A** | Vehicle power 2 (diesel engine) |
| 20A** | Vehicle power 2 (gas engine) | |
| 35 | 10A** | Vehicle power 3 |
| 36 | 15A** | Vehicle power 4 (diesel engine) |
| 20A** | Vehicle power 4 (gas engine) | |
| 37 | 10A** | Vehicle power 5 (diesel engine) |
| 38 | Relay | Powertrain control module (diesel engine), Electronic control module (gas engine) |
| 39 | 10A** | 4×4 hub lock |
| 40 | 15A** | 4×4 electronic lock |
| 41 | — | Not used |
| 42 | 20A** | Rear heated seats |
| 43 | — | Not used |
| 44 | — | Not used |
| 45 | 10A** | Run/start relay coil |
| 46 | 10A** | Transmission control module keep-alive power (diesel engine) |
| 47 | 10A** | A/C clutch feed |
| 48 | Relay | Run/start |
| 49 | 10A** | Rearview camera system |
| 50 | 10A** | Blower motor relay coil |
| 51 | — | Not used |
| 52 | 10A** | Powertrain control module, Electronic control module, Transmission control module run/start |
| 53 | 10A** | 4×4 module |
| 54 | 10A** | Anti-lock brake system run/start |
| 55 | 10A** | Rear window defroster coil, Battery charge coil |
| 56 | 20A** | Passenger compartment fuse panel run/start feed |
| 57 | Relay | Fuel pump |
| 58 | — | Not used |
| 59 | — | Not used |
| 60 | — | Not used |
| 61 | — | Not used |
| 62 | — | Not used |
| 63 | — | Not used |
| 64 | — | Not used |
| 65 | — | Not used |
| 66 | 20A** | Fuel pump |
| 67 | — | Not used |
| 68 | 10A** | Fuel pump relay coil |
| 69 | — | Not used |
| 70 | 10A** | Trailer tow backup lamp |
| 71 | 10A** | Canister vent (gas engine) |
| 72 | 10A** | Powertrain control module, Electronic control module relay coil feed keep-alive power |
| 73 | — | Not used |
| 74 | Relay | Trailer tow left-hand stop/turn |
| 75 | Relay | Trailer tow right-hand stop/turn |
| 76 | Relay | Trailer tow backup lamp |
| 77 | — | Not used |
| 78 | — | Not used |
| 79 | — | Not used |
| 80 | — | Not used |
| 81 | — | Not used |
| 82 | 20A* | Auxiliary power point #2 |
| 83 | 20A* | Auxiliary power point #1 |
| 84 | 30A* | 4×4 shift motor |
| 85 | 30A* | Heated/cooled seats |
| 86 | 25A* | Anti-lock brake system coil feed |
| 87 | 20A* | Auxiliary power point #5 |
| 88 | 20A* | Auxiliary power point #6 |
| 89 | 40A* | Starter motor |
| 90 | 25A* | Trailer tow battery charge |
| 91 | — | Not used |
| 92 | 20A* | Auxiliary power point #4 |
| 93 | 20A* | Auxiliary power point #3 |
| 94 | 25A* | Auxiliary switch #1 |
| 95 | 25A* | Auxiliary switch #2 |
| 96 | 50A* | Anti-lock brake system pump |
| 97 | 40A* | Inverter |
| 98 | — | Not used |
| 99 | 40A* | Instrument panel power inverter |
| 100 | 25A* | Trailer tow turn signals |
| 101 | Relay | Starter |
| 102 | Relay | Trailer tow battery charge |
| 103 | — | Not used |
| 104 | — | Not used |
| 105 | — | Not used |
| 106 | — | Not used |
| 107 | — | Not used |
2014 Ford F4550 Passenger Compartment Fuse Panel Diagram
In the 2014 Ford F550, the passenger compartment fuse panel is located near the passenger’s feet for easy access. To reach the fuses, simply remove the cover of the panel by pulling it towards yourself. It comes off easily, revealing the fuse panel underneath.
| Fuse or relay number | Fuse amp rating | Protected components |
|---|---|---|
| 1 | 30A | Not used (spare) |
| 2 | 15A | Auxiliary switch relay #4 |
| 3 | 30A | Passenger smart window motor |
| 4 | 10A | Interior lights, Hood lamp |
| 5 | 20A | Moonroof |
| 6 | 5A | Driver seat module |
| 7 | 7.5A | Driver seat switch, Driver lumbar motor |
| 8 | 10A | Power mirror switch |
| 9 | 10A | Auxiliary switch relay #3 |
| 10 | 10A | Run/accessory relay, Customer access feed |
| 11 | 10A | Instrument cluster |
| 12 | 15A | Interior lighting, Lighted running board lamps |
| 13 | 15A | Right turn signals and brake lamps, Right trailer tow stop turn relay |
| 14 | 15A | Left turn signals and brake lamps, Left trailer tow stop turn relay |
| 15 | 15A | High-mounted stop lamps, Backup lamps, Trailer tow backup relay, Reverse signal interior mirror |
| 16 | 10A | Right low beam headlamp |
| 17 | 10A | Left low beam headlamp |
| 18 | 10A | Keypad illumination, Passive anti-theft transceiver, Powertrain control module, Brake shift interlock |
| 19 | 20A | Subwoofer, Amplifier |
| 20 | 20A | Power door locks |
| 21 | 10A | Brake on/off switch |
| 22 | 20A | Horn |
| 23 | 15A | Not used (spare) |
| 24 | 15A | Steering wheel control module, Diagnostic connector, Power fold mirror relay, Remote keyless entry, Electronic finish panel |
| 25 | 15A | Not used (spare) |
| 26 | 5A | Steering wheel control module |
| 27 | 20A | Not used (spare) |
| 28 | 15A | Ignition switch |
| 29 | 20A | SYNC, GPS module, Radio faceplate |
| 30 | 15A | Parking lamp relay, Trailer tow parking lamp relay |
| 31 | 5A | Trailer brake controller (brake signal), Customer access |
| 32 | 15A | Moonroof motor, Telescoping mirror switch, Auto dimming mirrors, Power inverter, Driver and passenger door lock switch illumination, Rear heated seat switch illumination, Driver and passenger smart window motor, Passenger window switch |
| 33 | 10A | Restraint control module |
| 34 | 10A | Heated steering wheel module, Rear heated seats module |
| 35 | 5A | Select shift switch, Reverse park aid module, Trailer brake control module |
| 36 | 10A | Fuel tank select switch |
| 37 | 10A | Positive temperature coefficient heater |
| 38 | 10A | AM/FM radio faceplate |
| 39 | 15A | High beam headlamps |
| 40 | 10A | Parking lamps (in mirrors), Roof marker lamps |
| 41 | 7.5A | Passenger airbag deactivation indicator |
| 42 | 5A | Not used (spare) |
| 43 | 10A | Wiper relay |
| 44 | 10A | Auxiliary switches |
| 45 | 5A | Not used (spare) |
| 46 | 10A | Climate control |
| 47 | 15A | Fog lamps, Fog lamp indicator (in switch) |
| 48 | 30A Circuit breaker | Power windows switch, Power rear sliding window switch, Moonroof switch |
| 49 | Relay | Delayed accessory |
Understanding the importance of a car fuse box, and its location is crucial if you are a mechanic or a car owner. Please click on the link "Where is Car Fuse Box located?" to find out where is car fuse box located, and explore the types of fuses.
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.