Ford F-550 (2023 – 2026) Fuse Box Location & Diagrams
Confused by your truck’s electrical system? Our comprehensive guide provides accurate fuse box diagrams and precise location maps for the 2023–2026 Ford F-550. Easily identify, troubleshoot, and replace your fuses with confidence using these clear, vehicle-specific layouts designed to get your heavy-duty truck back on the road.
Fuse Box Location
Engine Compartment Fuse Box Location
Battery monitoring system fuse (3A)
Passenger Compartment Fuse Box Location
Engine Compartment Fuse Box
Ford F-550 (2023 – 2026)
| № | Amp | Protected Component |
|---|---|---|
| 1 | 50A | Cooling fan 1. |
| 2 | 50A | Heater. |
| 3 | 50A | Heater. |
| 4 | 50A | Heater. |
| 9 | 30A | Four-wheel drive module. |
| 10 | 30A | Compressed natural gas module switch. |
| 12 | 60A | Anti-lock brake system pump. |
| 13 | 30A | Passenger power seat. |
| 14 | 40A | Anti-lock brake system valve. |
| 15 | 30A | Body control module power bus. |
| 21 | 10A | Trailer tow backup lamps. |
| 22 | 10A | Four-wheel drive system. |
| 23 | 20A | Vehicle power 1. |
| 24 | 20A | Vehicle power 2 (gas). |
| 10A | Vehicle power 2 (diesel). | |
| 25 | 15A | Vehicle power 3 (gas). |
| 10A | Vehicle power 3 (diesel). | |
| 26 | 20A | Vehicle power 4. |
| 27 | 10A | Vehicle power 5 (gas). |
| 20A | Vehicle power 5 (diesel). | |
| 29 | 15A | Diesel exhaust fluid tank heater. |
| 30 | 15A | Diesel exhaust fluid line heater. |
| 31 | 15A | Glow plug and dosing module. |
| 34 | 20A | Rear heated seats. |
| 36 | 30A | Climate controlled seat module. |
| 37 | 5A | 24 V alternator. |
| 38 | 10A | Powertrain control module. Transmission control module. |
| 39 | 10A | Anti-lock brake system. |
| 40 | 10A | Electronic power assist steering. |
| 41 | 10A | Blind spot information system. Trailer tow tire pressure monitoring system. Rear electronic module controller area network. |
| 42 | 10A | Snowplow. |
| 43 | 15A | Interior power distribution box run/start. |
| 45 | 15A | Heated steering wheel. |
| 46 | 20A | Not used (spare). |
| 47 | 5A | Not used (spare). |
| 48 | 30A | Amplifier. |
| 49 | 25A | Not used (spare). |
| 51 | 40A | Blower motor. |
| 52 | – | Not used. |
| 53 | 10A | Four-wheel drive – transfer case control module. |
| 54 | 10A | Not used (spare). |
| 55 | 10A | Not used (spare). |
| 56 | 40A | Electronic power assist steering. |
| 57 | 25A | Trailer tow lighting module. |
| 58 | 50A | Customer interface module. |
| 59 | 60A | Inverter. |
| 60 | 60A | Interior power distribution box B+. |
| 61 | 30A | Vehicle battery 2. |
| 62 | 5A | Smart trailer hitch. |
| 63 | 10A | Smart data link connector. Enhanced central gateway. |
| 64 | 5A | Glow plug relay coil (diesel). |
| 65 | 10A | Compressed natural gas module power. |
| 74 | 30A | Trailer brake control. Aftermarket e-brake access. |
| 75 | 30A | Compressed natural gas powered at all times. |
| 76 | 25A | Trailer tow lighting module battery charge. |
| 77 | 30A | Vehicle battery 1. |
| 78 | 20A | Power point 2. |
| 79 | 20A | Power point 1. |
| 84 | 20A | Horn. |
| 85 | 40A | Heated rear windshield. |
| 91 | 5A | Headlamp control module. |
| 92 | 15A | Left-hand headlamp. |
| 93 | 15A | Right-hand headlamp. |
| 94 | 20A | Power point 3. |
| 95 | 20A | Power point 4. Smart charge module. |
| 98 | 10A | Tailgate release. |
| 101 | 50A | Customer interface module. |
| 102 | 5A | Rain sensor. |
| 103 | 30A | Front wiper motor. |
| 105 | 30A | Fuel pump. |
| 106 | 30A | Body control module power bus. |
| 107 | 30A | Trailer tow park lamps. |
| 108 | 40A | Driver power seat. |
| 109 | 30A | Starter motor. |
| 111 | 30A | Power sliding rear window. |
Passenger Compartment Fuse Box
Ford F-550 (2023 – 2026)
| № | Amp | Protected Component |
|---|---|---|
| 1 | 30A | Power windows. |
| 2 | 30A | Powered tailgate module. |
| 3 | 30A | Passenger door module. |
| 4 | 15A | Multi-contour seats. |
| 5 | – | Not used. |
| 6 | – | Not used. |
| 7 | 20A | Advanced driver assistance system module. |
| 8 | 10A | Delayed accessory logic. |
| 9 | – | Not used. |
| 10 | – | Not used. |
| 11 | 5A | Instrument cluster. |
| 12 | – | Not used. |
| 13 | 7.5A | Not used (spare). |
| 14 | 15A | SYNC. |
| 15 | 5A | Center high-mounted stop lamp camera. |
| 16 | – | Not used. |
| 17 | – | Not used. |
| 18 | 10A | Radio transceiver module. Four-wheel drive switch. Enhanced central gateway. |
| 19 | – | Not used. |
| 20 | 5A | Inverter. |
| 21 | 5A | Upfitter switch. |
| 22 | 10A | Auxiliary camera. |
| 23 | – | Not used. |
| 24 | 30A | Moonroof. |
| 25 | 5A | Not used (spare). |
| 26 | 5A | 2023: Near field communication module. |
| 27 | 5A | Trailer brake control switch. |
| 28 | 5A | Electrochromatic mirror. |
| 29 | 5A | Heating, ventilation and air conditioning. |
| 30 | – | Not used. |
| 31 | – | Not used. |
| 32 | – | Not used. |
| 33 | 10A | Brake on-off switch. |
| 34 | 7.5A | Steering column control module. Instrument cluster. |
| 35 | 5A | Rear heated seats. |
| 36 | 7.5A | Manual shift. Select shift switch. |
| 37 | 5A | Head-up display. |
| 38 | 7.5A | Telematics control unit. |
| 39 | – | Not used. |
| 40 | 10A | Left-hand door switch. Telescopic exterior mirror switch. |
| 41 | 10A | Adjustable pedals. |
| 42 | 5A | Central security module. |
| 43 | 5A | Headlamps. Ignition switch. |
| 44 | 30A | Driver door module. |
| 45 | 7.5A | Wireless accessory charger module. Driver front seat module. |
| 46 | 20A | Radio. |
| 47 | – | Not used. |
| 48 | – | Not used. |
| 49 | 7.5A | SYNC display screen. |
| 50 | 5A | Auxiliary smart data link connector. |
| 51 | – | Not used. |
