2023 FORD F-450 Fuses Operation
The fuse system is the most important safety feature of the 2023 Ford F-450’s electricity system. The F-450’s fuse action is there to keep the truck safe and make sure it works right. It keeps an eye out for electrical overloads and short circuits. The fuses are in the fuse box, and they are carefully placed to protect the different electrical parts of the car. When too much current threatens to mess up the system, a fuse “blows,” which breaks the circuit and stops any damage or dangers that could happen. Each fuse controls a different electrical function, and the F-450’s easy-to-use design often includes a picture of the fuse box to help find the right one quickly. With the easy replacement of a blown fuse, the F-450 can work again, showing that it cares about both the driver’s comfort and the longevity of the vehicle.
FUSE PRECAUTIONS
WARNING
- Always disconnect the battery before servicing high current fuses.
- To reduce risk of electrical shock, always replace the cover to the power distribution box before reconnecting the battery or refilling fluid reservoirs.
- 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.
UNDER HOOD FUSE BOX
LOCATING THE UNDER HOOD FUSE BOX
ACCESSING THE UNDER HOOD FUSE BOX
IDENTIFYING THE FUSES
IDENTIFYING THE FUSES IN THE UNDER HOOD FUSE BOX
| Item | Rating | Protected Component |
| 1 | 50 A | Cooling fan 1. |
| 2 | 50 A | Heater. |
| 3 | 50 A | Heater. |
| 4 | 50 A | Heater. |
| 9 | 30 A | Four-wheel drive module. |
| 10 | 30 A | Compressed natural gas module switch. |
| 12 | 60 A | Anti-lock brake system pump. |
| 13 | 30 A | Passenger power seat. |
| 14 | 40 A | Anti-lock brake system valve. |
| 15 | 30 A | Body control module RP2 bus. |
| 21 | 10 A | Trailer tow backup lamps. |
| 22 | 10 A | Four-wheel drive system. |
| 23 | 20 A | Vehicle power 1. |
| 24 | 20 A | Vehicle power 2 (gas). |
| 10 A | Vehicle power 2 (diesel). | |
| 25 | 15 A | Vehicle power 3 (gas). |
| 10 A | Vehicle power 3 (diesel). | |
| 26 | 20 A | Vehicle power 4. |
| 27 | 10 A | Vehicle power 5 (gas). |
| 20 A | Vehicle power 5 (diesel). | |
| 29 | 15 A | Diesel exhaust fluid tank heater. |
| 30 | 15 A | Diesel exhaust fluid line heater. |
| 31 | 15 A | Glow plug and dosing module. |
| 34 | 20 A | Rear heated seats. |
| 36 | 30 A | Climate controlled seat module. |
| 37 | 5 A | 24 V alternator. |
| 38 | 10 A | Powertrain control module. Transmission control module. |
| 39 | 10 A | Anti-lock brake system. |
| 40 | 10 A | Electronic power assist steering. |
| 41 | 10 A | Blind spot information system. |
| Trailer tow tire pressure monitoring system.
Rear electronic module controller area network. |
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| 42 | 10 A | Snowplow. |
| 43 | 15 A | Interior power distribution box run/start. |
| 45 | 15 A | Heated steering wheel. |
| 46 | 20 A | Not used (spare). |
| 47 | 5 A | Not used (spare). |
| 48 | 30 A | Amplifier. |
| 49 | 25 A | Not used (spare). |
| 51 | 40 A | Blower motor. |
| 52 | — | Not used. |
| 53 | 10 A | Four-wheel drive – transfer case control module. |
| 54 | 10 A | Not used (spare). |
| 55 | 10 A | Not used (spare). |
| 56 | 40 A | Electronic power assist steering. |
| 57 | 20 A | Trailer tow lighting module. |
| 58 | 50 A | Customer interface module. |
| 59 | 60 A | Inverter. |
| 60 | 60 A | Interior power distribution box B+. |
| 61 | 30 A | Vehicle battery 2. |
| 62 | 5 A | Smart trailer hitch. |
| 63 | 10 A | Smart data link connector. Enhanced central gateway. |
| 64 | 5 A | Glow plug relay coil (diesel). |
| 65 | 10 A | Compressed natural gas module power. |
| 74 | 30 A | Trailer brake control. Aftermarket e-brake access. |
| 75 | 30 A | Compressed natural gas powered at all times. |
| 76 | 25 A | Trailer tow lighting module battery charge. |
| 77 | 30 A | Vehicle battery 1. |
| 78 | 20 A | Power point 2. |
| 79 | 20 A | Power point 1. |
| 84 | 20 A | Horn. |
| 85 | 40 A | Heated rear windshield. |
| 91 | 5 A | Headlamp control module. |
| 92 | 15 A | Left-hand headlamp. |
| 93 | 15 A | Right-hand headlamp. |
| 94 | 20 A | Power point 3. |
| 95 | 20 A | Power point 4.
Smart charge module. |
| 98 | 10 A | Tailgate release. |
| 101 | 50 A | Customer interface module. |
| 102 | 5 A | Rain sensor. |
| 103 | 30 A | Front wiper motor. |
| 105 | 30 A | Fuel pump. |
| 106 | 30 A | Body control module RP1 bus. |
| 107 | 25 A | Trailer tow park lamps. |
| 108 | 40 A | Driver power seat. |
| 109 | 30 A | Starter motor. |
| 111 | 30 A | Power sliding rear window. |
INTERIOR FUSE BOX
LOCATING THE INTERIOR FUSE BOX
ACCESSING THE INTERIOR FUSE BOX
IDENTIFYING THE FUSES IN THE INTERIOR FUSE BOX
| Item | Rating | Protected Component |
| 1 | 30 A | Power windows. |
| 2 | 30 A | Powered tailgate module. |
| 3 | 30 A | Passenger door module. |
| 4 | 15 A | Multi-contour seats. |
| 5 | — | Not used. |
| 6 | — | Not used. |
| 7 | 20 A | Advanced driver assistance system module. |
| 8 | 10 A | Delayed accessory logic. |
| 9 | — | Not used. |
| 10 | — | Not used. |
| 11 | 5 A | Instrument cluster. |
| 12 | — | Not used. |
| 13 | 7.5 A | Not used (spare). |
| 14 | 15 A | SYNC. |
| 15 | 5 A | Center high-mounted stop lamp camera. |
| 16 | — | Not used. |
| 17 | — | Not used. |
| 18 | 10 A | Radio transceiver module. Four-wheel drive switch. Enhanced central gateway. |
| 19 | — | Not used. |
| 20 | 5 A | Inverter. |
| 21 | 5 A | Upfitter switch. |
| 22 | 10 A | Auxiliary camera. |
| 23 | — | Not used. |
| 24 | 30 A | Moonroof. |
| 25 | 5 A | Not used (spare). |
| 26 | 5 A | Near field communication module. |
| 27 | 5 A | Trailer brake control switch. |
| 28 | 5 A | Electrochromatic mirror. |
| 29 | 5 A | Heating, ventilation and air conditioning. |
| 30 | — | Not used. |
| 31 | — | Not used. |
| 32 | — | Not used. |
| 33 | 10 A | Brake on-off switch. |
| 34 | 7.5 A | Steering column control module.
Instrument cluster. |
| 35 | 5 A | Rear heated seats. |
| 36 | 7.5 A | Manual shift. |
| Select shift switch. | ||
| 37 | 5 A | Head up display. |
| 38 | 7.5 A | Telematics control unit. |
| 39 | — | Not used. |
| 40 | 10 A | Left-hand door switch. Telescopic exterior mirror switch. |
| 41 | 10 A | Adjustable pedals. |
| 42 | 5 A | Central security module. |
| 43 | 5 A | Headlamps. Ignition switch. |
| 44 | 30 A | Driver door module. |
| 45 | 7.5 A | Wireless accessory charger module.
Driver front seat module. |
| 46 | 20 A | Radio. |
| 47 | — | Not used. |
| 48 | — | Not used. |
| 49 | 7.5 A | SYNC display screen. |
| 50 | 5 A | Auxiliary smart data link connector. |
| 51 | — | Not used. |
IDENTIFYING FUSE TYPES
- A Micro 2.
- B Micro 3.
- C Maxi.
- D Mini.
- E M Case.
- F J Case.
- G J Case Low Profile.
- H Slotted M Case.
FUSES – TROUBLESHOOTING
FUSES – FREQUENTLY ASKED QUESTIONS
- When do I need to check a fuse?
If electrical components in the vehicle are not working. - When do I need to replace a fuse?
If a fuse has blown. - How do I identify a blown fuse?
You can identify a blown fuse by a broken wire within the fuse.
FAQ
Fuses are safety devices designed to protect electrical circuits by breaking the circuit in case of an overload or short circuit.
The fuses in the 2023 F-450 are typically located in the fuse box, which is often located in the engine compartment or interior of the vehicle.
Fuses in the F-450 prevent excessive current from flowing through electrical components, preventing damage and potential fires.
A blown fuse can result in the loss of power to specific electrical components, such as lights, power windows, or the radio.
Yes, replacing a blown fuse is typically a simple process that can be done by carefully removing the old fuse and replacing it with a new one of the same amperage.
Yes, the F-450’s owner’s manual usually includes a fuse box diagram that indicates the function of each fuse and its corresponding electrical component.
A blown fuse is often indicated by a visual inspection – the metal strip inside the fuse will be broken or melted. Also, the affected electrical component may not work.
Replacing a fuse usually requires a pair of fuse puller tweezers (often found in the fuse box) and replacement fuses of the correct amperage.
Using a higher amperage fuse is dangerous and can cause further damage to the electrical components or even start a fire. Always replace a blown fuse with one of the same amperage.
Fuses blow due to overloads or short circuits. To prevent frequent blown fuses, avoid overloading circuits, use the correct amperage for replacement fuses, and address any electrical issues promptly.
Yes, a faulty component in the electrical system can cause fuses to blow. If a fuse keeps blowing, it might be a sign of an underlying issue.
Many vehicles, including the F-450, often come with a set of spare fuses in the fuse box or in a designated compartment.
In most cases, you don’t need to disconnect the battery to change fuses. However, if you’re unsure, refer to the vehicle’s manual.
Replacing a fuse with a wire is dangerous and can lead to further electrical problems or fires. Always use the correct replacement fuse.
If you’re unsure about changing a fuse or diagnosing electrical issues, it’s recommended to consult the vehicle’s manual, seek professional assistance, or contact a certified mechanic.
Useful Links:
View Full PDF: 2023 FORD F-450 |Auto User Guide
2023 FORD F-450 All Wheel Drive (AWD) Instructions