2025 Ford F-150 Fuse Box Diagram & Amperage
Your complete guide to understanding the fuse boxes in your 2025 Ford F-150.
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Quick Answer
The 2025 Ford F-150 features multiple fuse box locations to protect its extensive electrical systems. You'll find fuse boxes under the hood (Power Distribution Box), inside the cabin (Passenger Compartment Fuse Panel, located behind the passenger kick panel), and in the rear of the vehicle (Rear Underseat Fuse Panel, typically under the rear passenger seat). Relay locations are integrated into these fuse boxes.
Under-Hood Power Distribution Box
This fuse box is located in the engine compartment, usually on the driver's side, near the battery. It contains high-current fuses and relays for critical vehicle functions.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F1 | 20A | Yellow | Powertrain Control Module (PCM)/Engine Control Module (ECM) |
| F2 | 30A | Green | Fuel Pump |
| F3 | 40A | Green | Starter Relay |
| F4 | 15A | Blue | Ignition Coils / Powertrain |
| F5 | 20A | Yellow | ABS Pump Motor |
| F6 | 10A | Red | Headlamp (Low Beam, Right) |
| F7 | 10A | Red | Headlamp (Low Beam, Left) |
| F8 | 15A | Blue | Headlamp (High Beam, Right) |
| F9 | 15A | Blue | Headlamp (High Beam, Left) |
| F10 | 30A | Green | Blower Motor (Main) |
| F11 | 10A | Red | A/C Clutch |
| F12 | 25A | Clear | Trailer Brake Control (TBCL) |
| F13 | 20A | Yellow | HVAC Blower Relay |
| F14 | 50A | Red | Electric Power Steering (EPS) (Main) |
| F15 | 15A | Blue | Horn |
| F16 | 10A | Red | Oxygen Sensors |
| F17 | 30A | Green | Wiper Motor |
| F18 | 15A | Blue | Transmission Control Module (TCM) |
| F19 | 20A | Yellow | Power Outlets (Front) |
| F20 | 20A | Yellow | Power Outlets (Rear) |
Relays: Specific relays for the PCM, fuel pump, starter, cooling fan, and horn are also located within this power distribution box. Refer to the diagram on the fuse box cover for exact relay positions.
Passenger Compartment Fuse Panel
This fuse panel is located inside the cabin, typically behind the passenger side kick panel. You may need to remove a trim panel to access it. This panel primarily handles accessories and interior electrical components.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F21 | 10A | Red | Radio/Infotainment System (Main) |
| F22 | 5A | Tan | Airbag Module (RCM) |
| F23 | 15A | Blue | Instrument Cluster |
| F24 | 10A | Red | Brake Pedal Position (BPP) Sensor |
| F25 | 7.5A | Brown | Interior Lamps |
| F26 | 20A | Yellow | Power Windows (Driver) |
| F27 | 20A | Yellow | Power Windows (Passenger) |
| F28 | 15A | Blue | Cigar Lighter/12V Outlet (Front) |
| F29 | 15A | Blue | USB Ports |
| F30 | 10A | Red | Heated Steering Wheel |
| F31 | 10A | Red | Seat Heaters (Driver) |
| F32 | 10A | Red | Seat Heaters (Passenger) |
| F33 | 5A | Tan | Power Mirrors |
| F34 | 10A | Red | Lane Keeping System |
| F35 | 7.5A | Brown | Adaptive Cruise Control |
Rear Underseat Fuse Panel
Some F-150 models, especially those with advanced rear features or specific trim levels, may have a third fuse panel located under the rear passenger seat. This panel often handles rear power points, advanced trailer functions, and certain convenience features. Always verify your specific vehicle's configuration.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F36 | 20A | Yellow | 400W Inverter |
| F37 | 15A | Blue | Rear 12V Power Outlet |
| F38 | 30A | Green | Trailer Tow Park Lamps |
| F39 | 20A | Yellow | Power Sliding Rear Window |
| F40 | 25A | Clear | Trailer Tow Battery Charge |
| F41 | 10A | Red | Rear Heated Seats |
How to Test a Fuse
Testing a fuse is a straightforward process. You will need a fuse puller (often found in the fuse box lid or with the spare tire tools) and a multimeter or a circuit tester.
- Locate the Fuse: Identify the suspect fuse using the diagrams provided here and matching them to the legend on your fuse box cover. Always verify the legend on your actual fuse box lid, as configurations can vary by trim and optional equipment.
- Turn Off the Vehicle: Ensure the ignition is off and disconnect any accessories to prevent electrical shocks.
- Remove the Fuse: Gently pull the fuse straight out using the fuse puller. Avoid using pliers, which can damage the fuse or its contacts.
- Inspect Visually: Hold the fuse up to the light. If the metal wire or strip inside is broken or burnt, the fuse is blown and needs replacement.
- Test with a Multimeter (for non-visible fuses): If the fuse isn't clear or you can't tell visually, set your multimeter to the continuity setting (often indicated by a speaker icon). Touch the probes to the two metal prongs on top of the fuse. If you hear a beep or the meter reads close to zero (indicating continuity), the fuse is good. If there's no beep or the reading is "OL" (open circuit), the fuse is blown.
- Replace the Fuse: Always replace a blown fuse with a new one of the exact same amperage and type. Using a fuse with a higher amperage can lead to serious electrical damage or fire.
Common Blown Fuses on This Vehicle
While the 2025 Ford F-150 is a robust vehicle, certain fuses tend to experience more issues due to their associated circuits or high demand. If you
Before you pull a fuse on the 2025 Ford F-150
- Use the label printed on the panel cover or the owner's manual for your exact build. Layouts change with options, model year and build date, so a chart for another truck can be wrong.
- Replace a blown fuse only with the same amp rating. A larger fuse can let wiring overheat.
- A fuse that blows again right away means a short or failing component downstream. Find the cause before replacing it again.
- A good fuse doesn't prove the circuit works — relays, grounds and connectors fail too.
- Disconnect the battery before working near high-current fuses or cables.
Learn more: How fuses, relays and truck electrical systems work
More specs for the 2025 Ford F-150
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2025 Ford F-150 Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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