Ford F-150 Fuse box diagram and Location
Passenger Compartment Fuse Box
The fuse panel is located under the right-hand side of the instrument panel. Remove the trim panel and fuse box cover to access the fuses.
Circuit Breaker
Relay
Fusible Link Location
- GRY (12 Ga) – Generator
- GRY (12 Ga) – Fusible Link C
- BRN (18 Ga) – Generator
Indicator Flasher Relay (Location)
Additional Relay Box (’04)
The relay box is located in the engine compartment on the left fender
N0.
Relay
Additional Relay Box (’05-’08)
N0.
Diode
Fuses
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.
Note: 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.
Roadside Emergencies
Standard fuse amperage rating and color
Passenger compartment fuse panel/power distribution box The fuse panel is located under the right-hand side of the instrument panel. Remove the trim panel and fuse box cover to access the fuses. To remove the fuse box cover, place a finger behind the PULL tab and your thumb above the PULL tab as shown in the illustration, then pull the cover off.
To reinstall the fuse box cover, place the top part of the cover on the fuse panel, then push the bottom part of the cover until you hear it click shut. Gently pull on the cover to make sure it is seated properly.
- Always disconnect the battery before servicing high-current fuses.
- To reduce the risk of electrical shock, always replace the cover to the Power Distribution Box and Auxiliary Relay Box before reconnecting the battery or refilling fluid reservoirs.
If the battery has been disconnected and reconnected, refer to the Battery section of the Maintenance and Specifications chapter.
The fuses are coded as follows.
Auxiliary relay box
The relay box is located in the engine compartment on the left fender.
- With Daytime Running Lamp (DRL) or 4×4 options
- Without Daytime Running Lamp (DRL) and 4×4 options
The relays are coded as follows:
Troubleshooting
- Check the specific fuse for that component:
- Solution: Refer to the fuse box diagram (usually located inside the fuse box cover) to find the appropriate fuse for the malfunctioning component.
- Once identified, remove the fuse using a fuse puller or needle-nose pliers.
- Inspect the fuse visually. A blown fuse will have a broken or melted metal filament.
- Replace the blown fuse:
- Solution: If the fuse is blown, replace it with a new fuse of the same rating (ampere). Ensure the replacement fuse matches the rating of the blown fuse.
- Check the component:
- Solution: After replacing the fuse, turn on the vehicle and check if the component is working. If it’s still not functioning, there could be an issue with the component itself or its wiring.
Problem: Fuse keeps blowing shortly after replacement
- Check for short circuits:
- Solution: A recurring blown fuse indicates a short circuit or a malfunctioning component. Inspect the wiring related to the fuse/component for exposed wires, damaged insulation, or signs of burning.
- Inspect the component:
- Solution: The component associated with the fuse might be faulty. For instance, a malfunctioning radio or headlight can cause the fuse to blow. Consider replacing or repairing the component.
- Consult a professional:
- Solution: If you can’t identify the issue, it’s best to take your F-150 to a professional mechanic or technician for a more in-depth diagnosis.
Problem: Difficulty locating the fuse box
- Engine Compartment:
- Solution: The primary fuse box, also known as the power distribution box, is typically located in the engine compartment. Look for a black box near the battery.
- Interior:
- Solution: The secondary fuse box (or the passenger compartment fuse panel) is usually located below the dashboard on the driver’s side. It may be behind a cover or panel.
Problem: Misplaced or illegible fuse box diagram
- Check the manual:
- Solution: The vehicle’s owner manual will have a section dedicated to fuses, including diagrams and descriptions
- Online resources:
- Solution: Search for your specific Ford F-150 model year’s fuse box diagram online. There are many dedicated forums and websites with detailed information.
- Visit a dealership:
- Solution: If you’re unable to find the information elsewhere, a Ford dealership can provide guidance on fuses or even offer a replacement diagram.
- General Tips
- Always turn off the vehicle and remove the keys before inspecting or replacing fuses.
- Never replace fuses with a higher or lower rating than recommended; this can lead to electrical malfunctions or fires.
- Keep spare fuses in your vehicle for emergencies.
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Ford F-150 Fuse box diagram and Location-FAQs
What are the locations of the fuse boxes in a Ford F-150?
The Ford F-150 typically has two fuse boxes: one located under the hood near the engine and another inside the cabin, often beneath the glove box or near the driver-side dashboard.
How do I locate the main fuse box?
The main fuse box in a Ford F-150 is commonly found under the hood, near the battery or engine area. For cabin-related fuses, check beneath the dashboard on the driver’s side or near the glove compartment.
Where is the secondary fuse box in the Ford F-150?
The secondary fuse box, often referred to as the interior fuse box, is located below the glove box or near the driver’s side under the dashboard.
How many fuse panels are there in a Ford F-150?
The Ford F-150 typically has two fuse panels: one under the hood and one inside the cabin.
What is the purpose of a fuse in a truck?
Fuses protect the vehicle’s electrical systems by disconnecting circuits in case of overcurrent or short circuits, preventing damage to components and ensuring safety.
What does the instrument cluster fuse control?
The instrument cluster fuse powers dashboard gauges, warning lights, and alarm systems, ensuring they operate correctly by utilizing electricity from the car battery.
How do I identify the cruise control fuse in a 2005 Ford F-150?
For a 2005 Ford F-150, the cruise control system is connected to two fuses in the central junction box: Fuse 2 (20-amp) and Fuse 14 (10-amp).
How can I find the fuse box diagram for my Ford F-150?
The fuse box diagram is usually found in the owner’s manual or on a sticker inside the fuse box cover. It details the functions of each fuse and its corresponding location.
What should I check if an electrical component stops working in my truck?
First, locate the relevant fuse box and inspect the specific fuse associated with the malfunctioning component. A blown fuse can often be identified by a broken filament inside.
Why does the Ford F-150 have two fuse boxes?
Having two fuse boxes allows the separation of engine-related circuits from cabin-related circuits, ensuring efficient and organized management of the vehicle’s electrical system.