Whenever you run into an electrical problem, the fuse box is the first place to look. In this guide, we’ll dive into the Ford fuse box diagram with the example of a Ford F150 to help you better know the fuses in your Ford trucks.
What Are Fuses and Why Do They Matter?
Fuses are key to your Ford truck’s electrical system and to keeping everything that relies on electricity working properly. The fuse boxes will house many different fuses, each controlling one or a group of items that are similarly related.
A fuse works by allowing the current to flow through a piece of metal between two metal prongs. When too much current flows through the metal bar, it overheats and breaks, leading to a shortage in the electrical system. These fuses are essential to protecting you and your Ford truck. If that metal bar didn’t break, it could overheat the wires and start a fire.
Ford F150 Fuse Box Locations
Many Ford trucks have 2-3 fuse boxes inside the truck and under the hood. Below are the common places of fuse box locations for Ford trucks.
| Fuse Box Types | Model Year | Fuse Box Locations |
|---|---|---|
| Engine Bay Fuse Panel | Ford F-150 (2006-2012) | In the engine compartment on the left fender |
| Passenger Compartment Fuse Panel | Ford F-150 (2006-2012) | Under the right-hand side of the instrument panel (aka dashboard); On the right-hand side of the passenger footwell behind a trim panel |
* Note: Due to both the locations and the layout varying with every single body style, it’s best to refer to your owner’s manual for the location of the exact fuse you need to find.
How to Locate the Fuse Box on Ford F-150 2015-2019?
Here are general steps to find the fuse box.
Accessing the Under-Hood Fuse Box
- Release the fuse box cover tab
- Pull off the fuse box cover
- Line up the fuse box cover, starting at the rear
- Clip on the fuse box cover
Accessing the Interior Fuse Box
- Open the passenger door
- Pull back the floor mat
- Pull off the kick panel
- Clip on the kick panel
- Put the floor mat into place
Identifying the Fuses
- Find the function in your manual
- Find the corresponding fuse number in the diagram
Fuse Types in Ford F150 Fuse Box
Fuses come in all shapes and sizes. But the most common fuses in your Ford truck will be a form of a blade fuse. These blade fuses come in different types and colors and the size of these fuses depends on their rated amperage. Usually, the higher the amperage, the bigger it is. See picture below.
Color and Size
The color, similar to size, is used to represent amperage. This is quite useful in situations where the number on the top has fallen off. However, the color code is only semi-standard. Many brands follow this standard, but some color/amps may vary slightly from brand to brand. The table color code is just for your reference.
| Color | ATC | ATM | MAX |
|---|---|---|---|
| Black | 1 | / | / |
| Gray | 2 | 2 | / |
| Violet | 3 | 3 | / |
| Pink | 4 | 4 | / |
| Tan | 5 | 5 | / |
| Brown | 71/2 | 71/2 | / |
| Red | 10 | 10 | 50 |
| Light Blue | 15 | 15 | 60 |
| Yellow | 20 | 20 | 20 |
| Clear | 25 | 25 | / |
| Green | 30 | 30 | 30 |
| Amber | 40 | / | 70 |
| Orange | / | / | 40 |
| Natural | / | / | 80 |
Ford Fuse Box Diagram: Example of A Ford F150 Truck
The 2006 F-150 11th generation has 3 different fuse boxes. In this part, we’ll show the functions of the 2006 Ford F150 fuse box diagram one by one.
Passenger Compartment Fuse Panel for Ford F-150
*Note: This is a Ford F-150 fuse box diagram for the passenger compartment fuse panel for your reference. See the table in the appendix for the descriptions of each fuse.
Auxiliary Relay Box (with DRL) for Ford F-150
| Type | No. | Description |
|---|---|---|
| Fuse ATO 5A | F03 | Clockspring illumination |
| Relay | R01 | 4×4 CCW |
| Relay | R02 | 4×4 CW |
| Relay | R03 | Daytime Running Lamps (DRL) high beam disable |
| Relay | R201 | DRL) Daytime running lights |
| Relay | R202 | (A/C clutch) A/C magnetic clutch |
| Diode ATO | D01 | (A/C clutch) A/C magnetic clutch |
Auxiliary Relay Box (without DRL) for Ford F-150
| Type | Description |
|---|---|
| Fuse ATO5A | F03 Clockspring illumination |
| Diode ATO | D01 A/C clutch |
| Relay | R202 A/C clutch |
| Relay | Other1 DRL |
| Relay | Other2 Daytime Running Lamps (DRL) high beam disable |
*Note: We strive to provide authentic information about the Ford F150 Fuse Box Diagram for your reference. The diagram may vary by model and model year. Always refer to your owner’s manual for confirmation. If you have any corrections or additions, please feel free to contact us. Your kind support would be highly appreciated.
Where to Find the Resources for Ford Fuse Box Diagram?
For the fuse box diagram of Ford F-150 and other makes, here is a bundle of sources for you. You can Google the specific make and model plus fuse box diagram to find one. And Ben has found a helpful website for your reference. Click the link to explore interactive fuse box and relay diagrams for the Ford F-150 and other makes and models.
Why Did the Fuse Blow?
The most common cause of a fuse blowing is normally due to old age. But if you are constantly replacing the same fuse over a short period of time (less than a month), you may have an electrical problem elsewhere. It’s normally due to frayed or loose wiring causing it not to make proper contact.
How to Diagnose A Blown Fuse?
The simplest way to diagnose a blown fuse is to check for a center-bar break (see the pic below). However, the break isn’t always that easy to see because it sometimes occurs closer to one of the fuse legs. The break can also be covered up by a burned bar, which will darken the plastic too much to see it.
Since it’s not always easy to diagnose them with naked eyes, we strongly recommend picking up a cheap fuse tester, normally only a few dollars and small enough where they won’t really take up room in a glove box. You can find cheap ones that are dual-function, not only as a fuse tester but also as a fuse puller.
Depending on what type you get, it’ll have different ways to notify you that the fuse is in good condition or blown. Some will have a light that turns green when the fuse is good and turns red when it’s bad, while others will beep when it’s bad.
See related blog on How to Tell If a Fuse Is Blown on Heavy Equipment?
Wrapping up
The fuses are essential to your Ford truck’s electrical system. Once you run into an electrical problem, finding the authentic fuse box diagram is the very first step. This helps you better diagnose where the problem is and how you can tackle it yourself. At FridayParts, you can source a vast selection of quality fuses, fuse boxes and aftermarket Ford parts for your vehicles. Stay tuned to our blogs for more useful knowledge about vehicle troubleshooting, repair, and maintenance.
Appendix
Passenger Compartment Fuse Panel for Ford F-150
| Type | No. | Description | Type | No. | Description | Type | No. | Description |
|---|---|---|---|---|---|---|---|---|
Fuse MINI10A |
1 | Run/Accessory – Wipers, Instrument cluster, Audio for XL/STX |
Fuse MINI20A |
26 | Horn relay (PCB3), Horn power |
Fuse FMX/JCase30A |
111 | 4×4 relays |
Fuse MINI20A |
2 |
Stop/Turn lamps, Brake on/off switch |
Fuse MINI5A | 27 | Passenger Air bag Deactivation (PAD) warning lamp, Cluster air bag warning lamp, Cluster RUN /START power |
Fuse FMX/JCase40A |
112 | ABS pump power |
Fuse MINI7.5A |
3 | Power mirrors, Memory seats and pedals | Fuse MINI5A | 28 | SecuriLock transceiver (PATS), PCM IGN monitor |
Fuse FMX/JCase30A |
113 | Wipers and washer pump |
Fuse MINI10A |
4 | DVD battery power, Power fold mirror |
Fuse MINI15A |
29 | PCM 4×4 power |
Fuse FMX/JCase40A |
114 | Heated backlite, Heated mirror power |
Fuse MINI7.5A |
5 | Keep alive memory for Powertrain Control Module (PCM) and climate control module |
Fuse MINI15A |
30 | PCM 4×4 power |
Fuse FMX/JCase30A |
116 | Blower motor |
Fuse MINI15A |
6 | Park lamps, BSM, Instrument panel illumination |
Fuse MINI20A |
31 | Column 6 Value 6 |
Fuse FMX/JCase30A |
118 | Heated seats |
| Fuse MINI5A | 7 | Radio (start signal) |
Fuse MINI15A |
32 | Vapor Management Valve (VMV), A/C clutch relay, Canister vent, Heated Exhaust Gas Oxygen (HEGO) sensors #11 and #21, CMCV, Mass Air Flow (MAF) sensor, VCT, Heated Positive Crankcase Ventilation (PCV) valve [4.2L engine], CID sensor [4.2L engine, 4.6L/4.2L EGR] |
Circuit breaker MAXI |
401 | Power windows, Moonroof, Power sliding backlite (Circuit breaker) |
Fuse MINI20A |
8 | Heated mirrors, Switch indicator |
Fuse MINI15A |
33 | Shift solenoid, CMS #12 and #22, Ignition coils |
Relay |
R01 | Starter solenoid |
Fuse MINI20A |
9 | Fuel pump relay, Fuel injectors, Intake manifold runner control [4.2L] |
Fuse MINI15A |
34 |
PCM power |
Relay |
R02 | Accessory delay |
Fuse MINI20A |
10 | Trailer tow back-up lamps relay (PCB1), Trailer tow park lamp relay (R201) |
Fuse MINI20A |
35 | Instrument cluster high beam indicator, High beam headlamps |
Relay |
R03 | Hi-beam headlamps |
Fuse MINI10A |
11 | A/C clutch, 4×4 solenoid |
Fuse MINI10A |
36 | Trailer tow right turn/stop lamps |
Relay |
Re04 | Column 9 Value 11 |
Fuse MINI5A |
12 |
PCM relay coil |
Fuse MINI20A |
37 | Rear power point |
Relay |
R05 | Heated backlite |
Fuse MINI10A |
13 |
Climate control module power, Flasher relay |
Fuse MINI25A |
38 | Subwoofer power |
Relay |
R06 | Blower motor |
Fuse MINI10A |
14 | Back-up lamp and Daytime Running Lamps (DRL) relay coil, A/C pressure switch, Redundant speed control switch, Heated PCV [5.4L], Trailer tow back-up lamps relay coil, ABS, Reverse park aid, EC mirror |
Fuse MINI20A |
39 | Instrument panel power point | Relay | R201 | Trailer tow park lamps |
Fuse MINI5A |
15 | Overdrive cancel, Cluster |
Fuse MINI20A |
40 |
Low beam headlamps, DRL |
Relay |
R202 | Blower motor |
Fuse MINI10A |
16 |
Brake-shift interlock solenoid |
Fuse MINI20A |
41 | Cigar lighter, Diagnostic connector power |
Relay |
R203 | Heated backlite |
Fuse MINI15A |
17 | Fog lamp relay (R202) |
Fuse MINI10A |
42 | Trailer tow left turn/stop lamps | / | / | / |
Fuse MINI10A |
18 | Run/Start feed – Overhead power point, Electrochromatic mirror, Heated seats, BSM, Compass, RSS (Reverse Sensing System) |
Fuse FMX/JCase30A |
101 | Subwoofer power | / | / | / |
Fuse MINI10A |
19 |
Restraints (Air bag module) |
Fuse FMX/JCase20A |
102 | Ignition switch feed | / | / | / |
Fuse MINI10A |
20 | Battery feed for overhead power point |
Fuse FMX/JCase20A |
103 | ABS valves | / | / | / |
Fuse MINI10A |
21 | Cluster keep alive power |
Fuse FMX/JCase30A |
105 | Electric trailer brakes | / | / | / |
Fuse MINI10A |
22 | Delayed accessory power for audio, power door lock switch and moonroof switch illumination |
Fuse FMX/JCase30A |
106 | Trailer tow battery charge | / | / | / |
Fuse MINI10A |
23 |
RH low beam headlamp |
Fuse FMX/JCase30A |
107 | Power door locks (BSM) | / | / | / |
Fuse MINI15A |
24 | Battery saver power for demand lamps |
Fuse FMX/JCase30A |
108 | Passenger power seat | / | / | / |
Fuse MINI10A |
25 | LH low beam headlamp |
Fuse FMX/JCase30A |
109 | Driver power seat, Adjustable pedals | / | / | / |
