In this comprehensive guide, we’ll provide you with a clear and concise overview of the fuse box diagram, helping you identify and troubleshoot any electrical issues that may arise in your Ford F450. So, let’s dive in and explore the fuse box diagram in detail.
Table of Contents
If certain electrical components in your vehicle are not working, it’s possible that a fuse has blown. Blown fuses can be identified by a broken wire inside the fuse. Before replacing any electrical components, check the corresponding fuses to see if they need to be replaced.
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 | — | 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 |
2012 Ford F450 Fuse Box Diagram (Power Distribution Box)
Located within the engine compartment, the power distribution box in the 2012 Ford F450 acts as a sturdy fortress for high-current fuses, diligently safeguarding the vehicle’s primary electrical systems from potential overloads.
| Fuse/RelayLocation | Fuse AmpRating | Protected Circuits |
| 1 | Relay | Blower motor |
| 2 | — | Not used |
| 3 | Relay | Urea heaters (diesel engine) |
| 4 | — | Not used |
| 5 | Relay | Rear window defroster |
| 6 | — | Not used |
| 7 | 50A* | Rear window defroster |
| 8 | 30A* | Passenger seat |
| 9 | 30A* | Driver seat |
| 10 | — | Not used |
| 11 | — | Not used |
| 12 | — | Not used |
| 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 (VPWR) 1 |
| 34 | 15A** | VPWR 2 (diesel engine) |
| 20A** | VPWR 2 (gas engine) | |
| 35 | 10A** | VPWR 3 |
| 36 | 15A** | VPWR 4 (diesel engine) |
| 20A** | VPWR 4 (gas engine) | |
| 37 | 10A** | VPWR 5 (diesel engine) |
| 38 | Relay | Powertrain control module(PCM) (diesel engine),Electronic control module (ECM)(gas engine) |
| 39 | 10A** | 4×4 hub lock |
| 40 | 15A** | 4×4 electronic lock |
| 41 | — | Not used |
| 42 | — | Not used |
| 43 | — | Not used |
| 44 | — | Not used |
| 45 | 10A** | Run/start relay coil |
| 46 | 10A** | Transmission control module (TCM) 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** | PCM/ECM/TCM run/start |
| 53 | 10A** | 4×4 module |
| 54 | 10A** | Anti-lock brake system (ABS) 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** | Cannister vent (gas engine) |
| 72 | 10A** | PCM/ECM 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 | 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* | ABS coil feed |
| 87 | 20A* | Auxiliary power point #5 |
| 88 | — | Not used |
| 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* | Upfitter #1 |
| 95 | 25A* | Upfitter #2 |
| 96 | 50A* | ABS pump |
| 97 | 40A* | Invertor |
| 98 | — | Not used |
| 99 | — | Not used |
| 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 |
| * Cartridge fuses ** Mini fuses | ||
Passenger Compartment Fuse Panel
The Passenger Compartment Fuse Panel in the 2012 Ford F450 is situated in the passenger’s footwell.
| Fuse/RelayLocation | Fuse AmpRating | Protected Circuits |
| 1 | 30A | Not used (spare) |
| 2 | 15A | Upfitter relay #4 |
| 3 | 30A | Not used (spare) |
| 4 | 10A | Interior lights, Hood lamp |
| 5 | 20A | Moon roof |
| 6 | 5A | Driver seat module |
| 7 | 7.5A | Driver seat switch, Driver lumbar motor |
| 8 | 10A | Power mirror switch |
| 9 | 10A | Upfitter 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 (TT) stop turn relay |
| 14 | 15A | Left turn signals and brake lamps,Left TT stop turn relay |
| 15 | 15A | High-mounted stop lamps, Backup lamps, TT backup relay |
| 16 | 10A | Right low beam headlamp |
| 17 | 10A | Left low beam headlamp |
| 18 | 10A | Keypad illumination, Passive anti-theft indicator (PATS), Powertrain control module(PCM), Brake shift interlock |
| 19 | 20A | Subwoofer |
| 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 |
| 25 | 15A | Not used (spare) |
| 26 | 5A | Steering wheel control module |
| 27 | 20A | Amplifier |
| 28 | 15A | Ignition switch |
| 29 | 20A | SYNC, GPS module, Radio faceplate |
| 30 | 15A | Parking lamp relay, TT parking lamp relay |
| 31 | 5A | Trailer brake controller (brake signal), Customer access |
| 32 | 15A | Moon roof, Telescoping mirror switch, Auto-dimming mirrors, Power invertor, Driver and passenger door lock switch illumination |
| 33 | 10A | Restraint control module |
| 34 | 10A | Not used (spare) |
| 35 | 5A | Select shift switch, Reverse park aid module, Trailer brake controlmodule |
| 36 | 10A | Fuel tank select switch |
| 37 | 10A | PTC heater |
| 38 | 10A | 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 | Upfitter switches |
| 45 | 5A | Not used (spare) |
| 46 | 10A | Climate control |
| 47 | 15A | Fog lamps, Fog lamp indicator (in switch) |
| 48 | 30A CircuitBreaker | Power windows switch, Power rear sliding window switch |
| 49 | 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.