If you’re a Ford F150 owner, you know how important it is to understand the layout of the fuse box. A blown fuse can cause a range of electrical problems in your truck, and understanding the fuse box diagram is the key to troubleshooting and fixing these issues.
What is an F150 Fuse Box Diagram?
Before we dive into the specifics of the F150 fuse box diagram, let’s review what a fuse box is and why it’s important. The fuse box in your F150 is where all of the electrical fuses are located. These fuses are designed to protect your truck’s electrical system by breaking the circuit when there’s an overload or short circuit.
The F150 fuse box diagram is a map that shows the layout of the fuses in your truck. It provides information on which fuses control which electrical components, as well as the amperage rating of each fuse.
Understanding the F150 Fuse Box Diagram
Now that we know what a fuse box diagram is, let’s look at the specifics of the F150 fuse box diagram. The fuse box in the F150 is located under the hood on the driver’s side, and it contains a total of 76 fuses.
The fuses in the F150 are divided into three categories:
- Passenger compartment fuse panel
- Power distribution box
- Instrument panel fuse panel
The passenger compartment fuse panel is located under the dash on the driver’s side, while the power distribution box is located under the hood. The instrument panel fuse panel is located on the right-hand side of the steering column.
Passenger Compartment Fuse Panel
The passenger compartment fuse panel contains fuses that control a variety of electrical components, including the air conditioning system, the audio system, the power windows and locks, and the interior lighting.
Here’s a breakdown of the fuses in the passenger compartment fuse panel:
| Fuse Number | Ampere Rating | Component Protected |
|---|---|---|
| 1 | 10A | Not Used (SPARE) |
| 2 | 20A | Horn, Power Point (SuperCrew only) |
| 3 | 7.5A | Power mirrors, Memory seats and pedals |
| 4 | 10A | Interior lamps |
| 5 | 7.5A | Memory module logic |
As you can see, the passenger compartment fuse panel contains a variety of fuses with different ampere ratings. Be sure to refer to your owner’s manual for a complete listing of the fuses in this panel.
Power Distribution Box
The power distribution box contains fuses that control the electrical components of the engine and drivetrain, including the starter, alternator, fuel pump, and cooling fan.
Here’s a breakdown of the fuses in the power distribution box:
| Fuse Number | Ampere Rating | Component Protected |
|---|---|---|
| 1 | 60A | Battery Junction Box (BJB) Power Distribution Box (PDB) |
| 2 | 30A | PCM power, Fuel pump relay |
| 3 | 30A | Delay/accessory relay, Power door lock switches |
| 4 | 40A | Blower motor relay |
| 5 | 50A | ABS module (Run/Start) |
Again, consult your owner’s manual for a complete listing of the fuses in the power distribution box.
Instrument Panel Fuse Panel
The instrument panel fuse panel contains fuses that control the gauges and instrumentation on your dashboard, as well as the airbag system and the trailer tow battery charge relay.
Here’s a breakdown of the fuses in the instrument panel fuse panel:
| Fuse Number | Ampere Rating | Component Protected |
|---|---|---|
| 1 | 10A | Instrument cluster, High-mounted stop lamp |
| 2 | 20A | Trailer tow battery charge relay |
| 3 | 5A | Powertrain Control Module (PCM) Keep Alive Memory |
| 4 | 5A | ASD, Trailer tow connector (HID headlamps) |
| 5 | 10A | Restraints Control Module (RCM), Passenger Occupant Detection System (PODS) |
Once again, refer to your owner’s manual for a complete listing of the fuses in the instrument panel fuse panel.
Frequently Asked Questions
What should I do if a fuse blows in my F150?
If a fuse blows in your F150, you’ll need to replace it with a new one. Be sure to use a fuse with the same ampere rating as the blown fuse. Refer to your owner’s manual for instructions on how to replace a fuse.
How do I know which fuse controls a specific component?
Consult the F150 fuse box diagram to determine which fuse controls a specific component. The diagram will provide information on the amperage rating and location of each fuse.
What should I do if I can’t find a specific fuse in the diagram?
If you can’t find a specific fuse in the diagram, consult your owner’s manual for a complete and up-to-date listing of all fuses in your F150.
Can I replace a fuse with a higher ampere rating than the blown fuse?
No, you should never replace a fuse with a higher ampere rating than the blown fuse. Doing so can cause electrical problems or even start a fire in your F150.
Can I replace a fuse with a lower ampere rating than the blown fuse?
No, you should never replace a fuse with a lower ampere rating than the blown fuse. Doing so can cause the fuse to blow again or even damage your F150’s electrical system.
Conclusion
Understanding the F150 fuse box diagram is essential for troubleshooting and repairing electrical problems in your Ford truck. Be sure to refer to the diagram and your owner’s manual when working on your F150’s electrical system. By doing so, you’ll be able to keep your truck running smoothly and avoid costly repairs down the road.
