2025 FORD E-350 Fuses and Fuse Box User Manual
Introducing the unsung heroes of car electrical systems: the 2025 Ford E-350 Fuses and Fuse Box. Tucked away in the car’s design, these parts act as protectors, shielding important circuits from power spikes and other problems. Ford’s dedication to dependability and safety on the road is embodied by the E-350’s fuses and fuse box, which are designed with painstaking attention to detail and exact engineering.
2023 – 2024 FORD F-SERIES SUPER DUTY Review, Price, Features, Mileage (Brochure)
FORD Fuses
FUSE SPECIFICATION CHART
Engine Compartment Fuse Box
WARNING: Always disconnect the battery before servicing high-current fuses.
WARNING: To reduce risk of electrical shock, always replace the cover to the power distribution box before reconnecting the battery or refilling fluid reservoirs.
Note: If your vehicle has dual batteries, disconnecting the primary under-hood battery does not remove power from all circuits.
The engine compartment fuse box is in the engine compartment. It has high-current fuses that protect your vehicle’s main electrical systems from overloads. If you disconnect and reconnect the battery, you need to reset some features.
| Item | Rating | Protected Component |
| 1 | 20 A | Horn. |
| 2 | 50 A | Blower motor. |
| 3 | — | Not used. |
| 4 | 30 A | Starter relay. |
| 5 | 20 A | Power point 3. |
| 6 | 20 A | Upfitter relay 4 (cutaway). Not used (spare) (stripped chassis). |
| 8 | — | Not used. |
| 10 | — | Not used. |
| 12 | 20 A | Power point 4. |
| 13 | 10 A | Yaw sensor (stripped chassis).
Not used (spare) (cutaway). |
| 14 | 10 A | Forward looking radar (cutaway).
Not used (spare) (stripped chassis). |
| 15 | — | Not used. |
| 16 | — | Not used. |
| 17 | 10 A | Powertrain control module run/start feed. |
| 18 | 10 A | Anti-lock brake system run/ start feed. |
| 19 | — | Not used. |
| 20 | 30 A | Wiper power. |
| 21 | — | Not used. |
| 22 | 10 A | Wiper module (stripped chassis).
Not used (spare) (cutaway). |
| 23 | — | Not used. |
| Item | Rating | Protected Component |
| 24 | 40 A | Body control module – run power in feed 2. |
| 25 | 50 A | Body control module – run power in feed 1. |
| 26 | — | Not used. |
| 27 | 20 A | Body builder frame connector. |
| 28 | — | Not used. |
| 29 | 10 A | B+ power 12 V(special order vehicle). |
| 30 | 30 A | Power driver seat (cutaway).
Not used (spare) (stripped chassis). |
| 31 | — | Not used. |
| 32 | 20 A | Vehicle power 1 – Powertrain control module. |
| 33 | 20 A | Vehicle power 2 –
Heater exhaust gas oxygen sensor 11. Heater exhaust gas oxygen sensor 12. Heater exhaust gas oxygen sensor 21. Canister vent solenoid. Canister purge solenoid. Variable camshaft timing. |
| 34 | 10 A | Vehicle power 3 –
Variable oil pressure control. Fan clutch. A/C clutch relay. |
| 35 | 20 A | Vehicle power 4 – Coil on plug. |
| 36 | — | Not used. |
| 37 | — | Not used. |
| Item | Rating | Protected Component |
| 38 | 10 A | Washer relay (stripped chassis).
Not used (spare) (cutaway). |
| 39 | — | Not used. |
| 41 | 30 A | Trailer brake control connector. |
| 43 | 30 A | Instrument panel connector (stripped chassis).
Not used (spare) (cutaway). |
| 45 | — | Not used. |
| 46 | 10 A | A/C clutch. |
| 47 | 40 A | Upfitter relay 1 (cutaway). Not used (spare) (stripped chassis). |
| 48 | — | Not used. |
| 49 | 30 A | Pump electronics module. |
| 50 | 15 A | Fuel injectors. |
| 51 | 20 A | Power point 1. |
| 52 | 50 A | Power at all times Auxiliary A/C prep on B-pillar vehicle connector (cutaway).
Not used (spare) (stripped chassis). |
| 53 | 30 A | Trailer tow park lamps. |
| 54 | 40 A | Run/start feed on instru- ment panel connector. |
| 55 | 20 A | Upfitter 3 relay (cutaway). Not used (spare) (stripped chassis). |
| 56 | 20 A | Power point 2 prep B-pillar connector. |
| 58 | 5 A | USB smart charger. |
| Item | Rating | Protected Component |
| 59 | 10 A | Parking lamps 1 (special order vehicle). |
| 60 | — | Not used. |
| 61 | — | Not used. |
| 62 | — | Not used. |
| 63 | — | Not used. |
| 64 | — | Not used. |
| 65 | — | Not used. |
| 66 | — | Not used. |
| 67 | — | Not used. |
| 69 | — | Not used. |
| 70 | 40 A | Inverter. |
| 71 | 30 A | Anti-lock brake system valves. |
| 72 | 10 A | Brake on and off switch. |
| 73 | — | Not used. |
| 74 | — | Not used. |
| 75 | — | Not used. |
| 76 | 60 A | Anti-lock brake system pump. |
| 77 | 30 A | Voltage quality module power – body control module. |
| 78 | 10 A | Trailer tow stoplamps. |
| 79 | — | Not used. |
| 80 | 10 A | Trailer tow backup lamps. |
| 81 | — | Not used. |
| 82 | 5 A | Upfitter switch (factory location for ignition power). |
| Item | Rating | Protected Component |
| 83 | 5 A | Upfitter switch (optional location for power at all times). |
| 84 | — | Not used. |
| 85 | — | Not used. |
| 86 | — | Not used. |
| 87 | — | Not used. |
| 88 | — | Not used. |
| 89 | — | Not used. |
| 91 | 40 A | Hot at all times /B+ power on B-pillar connector (cutaway).
Battery power on instrument panel connector(stripped chassis). |
| 93 | 10 A | Parking lamps 3 (special order vehicle). |
| 94 | 10 A | Parking lamps 2 (special order vehicle). |
| 95 | 20 A | Stoplamp relay. |
| 96 | — | Not used. |
| 97 | 50 A | Battery power to engine, B- pillar and instrument panel vehicle connectors. |
| 98 | 30 A | Trailer tow battery charge. |
| 99 | 40 A | Upfitter 2 relay (cutaway). Not used (spare) (stripped chassis). |
| 100 | — | Not used. |
| 101 | — | Not used. |
| 102 | — | Not used. |
| 103 | — | Not used. |
| Item | Rating | Protected Component |
| 104 | — | Not used. |
| 105 | 15 A | Trailer tow right-hand and left-hand stoplamp and direction indicator relay power. |
Fuses
Note: Spare fuse amperage may vary.
Passenger Compartment Fuse Box
WARNING: Always disconnect the battery before servicing high-current fuses.
Note: If your vehicle has dual batteries, disconnecting the primary under-hood battery does not remove power from all circuits.
The fuse panel is to the left-hand side of the brake pedal and mounted onto the lower left-hand cowl panel. Remove the fuse panel cover to access the fuses. To remove a fuse, use the fuse puller tool provided on the inside of the fuse panel cover. Replace fuses with the same type and rating.
| Item | Rating | Protected Component |
| 1 | — | Not used. |
| 2 | 10 A | Left-hand front and right- hand front door lock switch (cutaway).
Inverter (cutaway). Connector (stripped chassis). |
| 3 | 7.5 A | Power mirror switch (cutaway). |
| — | Not used (stripped chassis). | |
| 4 | 20 A | Not used (spare). |
| 5 | 20 A | Not used (spare). |
| 6 | 10 A | Not used (spare). |
| 7 | 10 A | Not used (spare). |
| 8 | 5 A | Not used (spare). |
| 9 | 5 A | Not used (spare). |
| 10 | — | Not used. |
| 11 | — | Not used. |
| 12 | 7.5 A | Smart datalink connector. |
| 13 | 7.5 A | Cluster.
Steering column control module. |
| 14 | 15 A | Not used (spare). |
| 15 | 15 A | Not used (spare). |
| 16 | — | Not used. |
| 17 | 7.5 A | Not used. |
| 18 | 7.5 A | Run/start feed for front blend actuator/climate mode switch (cutaway). Run/start feed to stripped chassis connector (stripped chassis). |
| Item | Rating | Protected Component |
| 19 | 5 A | Radio transceiver module and telematics control unit (cutaway).
Telematics control unit (stripped chassis). |
| 20 | 5 A | Ignition switch. |
| 21 | 5 A | Not used. |
| 22 | 5 A | Body builder B-pillar connector (cutaway). |
| 5 A | Not used (stripped chassis). | |
| 23 | 30 A | Not used (spare). |
| 24 | 30 A | Not used (spare). |
| 25 | 20 A | Not used (spare). |
| 26 | 30 A | Not used (spare). |
| 27 | 30 A | Not used (spare). |
| 28 | 30 A | Not used (spare). |
| 29 | 15 A | Upfitter interface module (cutaway). |
| — | Not used (stripped chassis). | |
| 30 | 5 A | Not used (spare). |
| 31 | 10 A | Smart datalink connector. |
| 32 | 20 A | Radio (cutaway). |
| 33 | — | Not used. |
| 34 | 30 A | Not used (spare). |
| 35 | 5 A | Tow haul switch. |
| 36 | 15 A | Rear view mirror (cutaway). Camera lane departure (cutaway). |
| — | Not used (stripped chassis). | |
| 37 | 20 A | Not used (spare). |
| Item | Rating | Protected Component |
| 38 | 30 A | Power window switches and motors (cutaway). |
| — | Not used (stripped chassis). |
Note: Spare fuse amperage may vary.
CHANGING A FUSE
Fuses
WARNING: 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.
If electrical components in the vehicle are not working, a fuse may have blown. Blown fuses are identified by a broken wire within the fuse. Check the appropriate fuses before replacing any electrical components.
Fuse Types
- Micro 2.
- Micro 3.
- Maxi.
- Mini.
- M Case.
- J Case.
- J Case Low Profile.
- Slotted M Case.
FAQs
The fuses and fuse box in the 2025 Ford E-350 serve to protect electrical circuits from overloads and short circuits by interrupting the flow of electricity when necessary.
The 2025 Ford E-350 typically features one or more fuse boxes located in various areas of the vehicle, containing multiple fuses to protect different electrical systems.
The fuse box in the 2025 Ford E-350 may contain a combination of blade-type fuses, cartridge fuses, or mini fuses, depending on the specific model and configuration.
Yes, the fuses in the 2025 Ford E-350 can be visually inspected for signs of damage such as a broken filament or discoloration, indicating a blown fuse.
To replace a blown fuse in the 2025 Ford E-350, locate the appropriate fuse in the fuse box, use a fuse puller or needle-nose pliers to remove the damaged fuse, and insert a new fuse of the same amperage rating.
The fuses used in the 2025 Ford E-350 may have varying amperage ratings depending on the electrical system they protect, typically ranging from 5 to 30 amps.
Depending on the vehicle’s specifications, the 2025 Ford E-350 may come equipped with spare fuses stored in the fuse box or in a designated compartment within the vehicle.
Yes, installing aftermarket accessories or modifications in the 2025 Ford E-350 may increase the electrical load on certain circuits, potentially requiring the use of higher amperage fuses or additional fuse protection.
It is recommended to periodically check the fuses in the 2025 Ford E-350 for signs of damage or corrosion, especially after experiencing electrical issues or performing modifications.
Common electrical problems in the 2025 Ford E-350 related to fuses may include blown fuses causing malfunctioning lights, power windows, or audio systems, among others.
Yes, the fuse box in the 2025 Ford E-350 is typically located in a readily accessible area of the vehicle’s interior or engine compartment, allowing for easy inspection and replacement of fuses.
The fuse box in the 2025 Ford E-350 plays a crucial role in protecting electrical circuits from damage or fires caused by electrical overloads, ensuring the safety and reliability of the vehicle’s electrical systems.
To prevent electrical shock or damage to the vehicle’s electrical systems, it is important to disconnect the battery and follow proper procedures when replacing fuses in the 2025 Ford E-350.
While the fuse box in the 2025 Ford E-350 is designed to be weather-resistant, additional sealing or waterproofing measures may be taken for added protection in extreme
conditions or off-road environments.
The fuse box in the 2025 Ford E-350 is engineered to meet stringent quality and safety standards, providing reliable protection for electrical circuits and ensuring trouble-free operation in various driving conditions.
By providing effective protection for electrical circuits, the fuse box in the 2025 Ford E-350 enhances overall vehicle reliability, reducing the likelihood of electrical malfunctions and ensuring consistent performance.
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2023 – 2024 FORD F-SERIES SUPER DUTY Review, Price, Features, Mileage (Brochure)