2019 Ford F-250 Super Duty Fuse Box Diagram
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Quick answer
Your 2019 Ford F-250 Super Duty has two main fuse boxes:
- Power Distribution Box: Located in the engine compartment on the driver's side, near the battery.
- Passenger Compartment Fuse Panel: Located on the passenger side, behind a trim panel in the right-hand side kick panel.
Power Distribution Box (Under-Hood)
This fuse box is located in the engine bay and contains high-amperage fuses and relays that control major vehicle systems. Always disconnect the battery before servicing high-amperage fuses or relays.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| 4 | 20A | Blue | Powertrain Control Module (PCM) |
| 10 | 20A | Blue | Fuel pump |
| 13 | 40A | Green | Blower motor |
| 14 | 40A | Green | Anti-lock Brake System (ABS) pump |
| 15 | 30A | Pink | Starter motor relay |
| 20 | 30A | Pink | Trailer tow lighting module |
| 22 | 25A | Natural | Ignition coil |
| 27 | 10A | Red | A/C clutch relay |
| 32 | 15A | Blue | Left high-beam headlamp |
| 33 | 15A | Blue | Right high-beam headlamp |
| 35 | 30A | Pink | Trailer brake control module |
| 44 | 20A | Blue | Horn |
| 52 | 60A | Yellow | Ignition switch |
| 59 | 60A | Yellow | Cabin Fuse Box (BCM) |
Relay Locations
- Starter Relay: R5
- Fuel Pump Relay: R7
- A/C Clutch Relay: R8
- Blower Motor Relay: R1
Passenger Compartment Fuse Panel (Kick Panel)
This fuse panel is located behind the kick panel in the front passenger footwell. You may need to remove a trim piece to access the cover. This box handles interior systems and various control modules.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| 10 | 20A | Blue | Cigar lighter / 12V power point (front) |
| 12 | 10A | Red | Steering wheel controls, clock |
| 13 | 7.5A | Brown | Airbag module, occupant classification sensor |
| 22 | 10A | Red | Headlamp switch, tail lamps, parking lamps |
| 23 | 15A | Blue | Low-beam headlamps (left and right) |
| 24 | 15A | Blue | Brake pedal switch (stop lamps) |
| 29 | 10A | Red | ABS module |
| 32 | 7.5A | Brown | Powertrain Control Module (PCM) - Wakeup |
| 33 | 20A | Blue | SYNC, radio, infotainment display unit |
| 36 | 7.5A | Brown | Instrument cluster |
| 37 | 30A | Green | Power driver seat |
Note: Your F-250's fuse layout may vary slightly depending on its trim level (XL, XLT, Lariat, King Ranch, Platinum, Limited) and optional equipment. Always confirm fuse locations and ratings by checking the diagram printed inside your fuse box covers.
How to test a fuse
A blown fuse can be identified in two ways. The first is a simple visual inspection.
- Remove the suspect fuse from the fuse box. A fuse puller tool is often included on the fuse box lid.
- Hold the fuse up to the light. Inside the plastic body is a small metal strip. If this strip is broken or melted, the fuse is blown.
- If you can't see the strip clearly, you can use a multimeter set to continuity or resistance (Ohms). Touch the probes to each metal spade on the top of the fuse. A good fuse will show continuity (or very low resistance). A blown fuse will show an open circuit (OL).
When replacing a fuse, always use a new fuse with the identical amperage rating. Using a higher-rated fuse can cause severe damage to the electrical system and create a fire hazard.
Common blown fuses on this vehicle
-
Fuse #10 (Passenger Compartment) - Cigar Lighter / 12V Power Point: This is one of the most common fuses to blow. The first thing to check is the outlet itself. Look for any foreign objects, like a coin or paper clip, that may have fallen inside and caused a short circuit. Also, check the accessory you plugged in; faulty phone chargers are a frequent culprit.
-
Fuse #33 (Passenger Compartment) - Radio/SYNC: If your radio or center screen suddenly goes black, this fuse is the first place to look. Occasionally, software glitches can cause a fault that blows the fuse. If replacing the fuse restores power but it blows again soon after, you may have an issue with the SYNC module (APIM) or a wiring short behind the dash.
-
Fuse #20 (Power Distribution Box) - Trailer Tow Lights: If your truck's lights work but your trailer lights do not, check this fuse. The most common cause is a wiring issue on the trailer itself. Inspect the trailer's wiring harness for any frayed, pinched, or corroded wires, and check the bulbs on the trailer. A faulty connection at the 7-pin connector can also be to blame.
If you're struggling to diagnose an electrical issue or aren't comfortable working on your F-250, let a professional handle it. Find a trusted shop on Repairius.
Before you pull a fuse on the 2019 Ford F-250 Super Duty
- 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 2019 Ford F-250 Super Duty
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
2014 F-250 Super Duty
2015 F-250 Super Duty
2016 F-250 Super Duty
2017 F-250 Super Duty
2018 F-250 Super Duty
2020 F-250 Super Duty
Maintenance & repair guides
2019 Ford F-250 Super Duty 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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