2023 Ford F-150 Fuse Box Diagram

Quick answer

On the 2023 Ford F-150, you can find three primary fuse box locations:

• Under-hood Fuse Box / Power Distribution Center: Located in the engine bay, on the passenger side near the battery. It houses fuses and relays for high-power components like the engine, starter, and cooling fans.
• Passenger Compartment Fuse Box: Found behind a trim panel on the passenger side of the cabin, in the footwell area.
• Rear Junction Box: Located in the passenger side kick panel area.

Always consult the diagram printed on the inside of the fuse box cover to confirm fuse locations, as they can vary based on your truck's specific trim and options package.

Under-hood Fuse Box (Power Distribution Center)

This main fuse box contains high-amperage fuses and relays that control critical powertrain and vehicle systems. To access it, open the hood and locate the black plastic box on the right (passenger) side of the engine bay. Release the clips to remove the cover.

Relay Locations:

• R5: A/C Clutch Relay
• R8: Starter Relay
• R10: Fuel Pump Relay
• R12: Blower Motor Relay

Passenger Compartment Fuse Box

This fuse panel handles the majority of the interior electronics and systems. It is located on the passenger side of the cabin, in the footwell. You may need to remove a trim piece or kick panel for access.

How to test a fuse

A blown fuse is a common cause of electrical problems. You can visually inspect a fuse to see if the thin wire inside has broken, but the most reliable method is to use a multimeter.

1. Safety First: Turn off the ignition and the component that isn't working.
2. Locate the Fuse: Find the correct fuse box and remove the suspect fuse. A fuse puller tool is often included on the fuse box lid.
3. Set the Multimeter: Set your multimeter to the continuity setting (it often looks like a sound wave or diode symbol).
4. Test for Continuity: Touch one probe of the multimeter to each of the two metal prongs on the fuse.
5. Check the Result: If the multimeter beeps or shows a reading of zero (or very close to it), the fuse is good. If it remains silent or reads "OL" (open loop), the fuse is blown and must be replaced.

Important: Always replace a blown fuse with a new one of the exact same amperage rating. Using a higher-rated fuse can cause a fire hazard by allowing too much current through the circuit, damaging components and wiring.

Common blown fuses on this vehicle

While the 2023 F-150 is a modern, reliable truck, certain fuses can be more prone to blowing than others.

• Powerpoint / Cigar Lighter Fuses (Passenger Compartment Fuse 23, Under-hood Fuse 1 & 2): These are the most commonly blown fuses. The cause is often a faulty phone charger, a coin falling into the socket, or a defective device plugged into the outlet. What to check first: Inspect the power outlet for foreign objects. Unplug any devices and chargers and try a new fuse.

• Trailer Tow Fuses (Under-hood Fuses 52 & 65): Problems with trailer wiring are a frequent cause for these fuses blowing. A short in the trailer's own wiring harness can put a strain on the truck's system. What to check first: Disconnect the trailer. If the new fuse doesn't blow, the problem is with the trailer's wiring, not the truck. Inspect the trailer plug and wiring for corrosion or damage.

• Fuel Pump Fuse (Under-hood Fuse 10): While less common, a no-start condition can sometimes be traced to this fuse. A blown fuel pump fuse can be a sign that the fuel pump itself is failing and drawing too much current. What to check first: If this fuse blows repeatedly, it is a strong indicator of a failing fuel pump that requires professional diagnosis.

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