2005 F150 Fuse Box Diagram: Exploring the Fuse Boxes

2005 F150 Fuse Box Diagram: Find the correct fuse for the circuit you’re working on

This article shows you the 2005 F150 Fuse Box Diagram for the Passenger Compartment Fuse Box, also called the Power Distribution Box or the Central Junction Box. The 2005 F150 only has one fuse box located in the passenger compartment, along with an auxiliary relay box located in the engine compartment on the driver’s side fender. To locate the passenger compartment fuse box, crawl under the dash on the passenger side. The fuse box is behind a removable trim panel and a fuse box cover.

To access the fuses, remove the trim panel. Then, locate the pull tab on the fuse box cover and pull it off. To reinstall the cover, locate the top part on the fuse box and push the bottom part up until you hear it click.

To learn more about automotive fuses, see this article

To learn how to check a fuse visually or without removing it, see this article

Find the most commonly replaced fuses and bulbs here

The fuse box diagram and table below show all 71 fuses and all the relays. But most DIYers are looking for fuses and relays for the lights, power ports, and the blower motor.  I’ve listed the most commonly checked/replaced fuses here to save time. I’ve also listed the most commonly replaced bulbs. A blown fuse or bulb are the two most common reasons for lighting issues.

• Backup Light: Fuse #14 10A, Bulb #3156
• Blower Motor: Fuse #116 30A and #13 10A
• Headlight Low Beam Passenger Side: Fuse #23 10A, Bulb #9008 (dual filament for high and low beams)
• Headight Low Beam Driver’s Side: Fuse #25 10A, Bulb #9008 (dual filament for high and low beams)
• Headlights High Beam: Fuse #35 20A, Bulb #9008 (dual filament for high and low beams)
• Horn: Fuse #26 20A
• Parking lamps: Fuse #6 15A Mini Fuse, Front park turn bulb #3157 (amber),
• Power Ports: Rear: Fuse #37 20A, Dash/Cigar Lighter #41 20A, Overhead #20 10A
• Stop and Turn lights: Fuse #2 20A Mini Fuse, Bulb #4057 or #3057

2005 F150 Fuse Box Diagram for the passenger compartment fuse box/Power Distribution Box

The cabin fuse box is under the dash on the instrument panel’s right-hand (passenger) side. Remove the trim panel and fuse box cover to access the fuses and relays.

How to find your fuse and the devices served by that fuse

There are 71 fuse and relay slots in the passenger compartment fuse box. The chart shows only 10 to speed up load time. Here’s how to find the fuse and circuit you want.
1) Change the number of entries showing (in the Show Entries Box) to 100 and scroll the list.
2) Enter the name of the component you’re searching for in the Search box.
3) Use the Next/Previous buttons at the bottom of the table

2005 F150 Fuse Box Diagram for the Auxiliary Relay Box

The relay box is located in the engine compartment on the left fender.

2005 Ford F150 Aux Relay Box Relay Diagram

Tips to diagnose electrical issues on your 2005 F150

If your power windows don’t work

• The power windows aren’t powered by fuses. They get power from a 30A circuit breaker #401 in the fuse box diagram above.

If your blower motor doesn’t work

The blower motor gets its power from the blower motor relay #R06 in the fuse box diagram above. Power comes into the motor on the brown/yellow wire. It seeks ground through the brown/white wire, which runs to the fan speed switch and then to ground #203, located in the passenger footwell.

If the circuit you’re working on contains a relay

• A simple way to test a relay is to swap in a similarly shaped relay and see if the component works.
• If that doesn’t work, remove the relay and test for power to the relay control coil and contacts using a multimeter.For more information on relay testing, see this article.

©, 2024 Rick Muscoplat