Ford F-150 (2004-2008) Fuses and 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.
No. | Amp | Circuits Protected |
1 | 10 | Windshield Wiper Motor, Instrument Cluster, Audio Unit, Ignition Switch |
2 | 20 | Indicator Flasher Relay (Stop/Turn Lamps), Brake Pedal Position Switch, Deactivator Switch, Trailer Tow Electric Brake Module (’08), PCM (BOO Signal (’08)), Turn Signal Mirrors (’08), CHMSL (’08) |
3 | 5 | ’04-’05: Exterior Rear View Mirror Switch, Seat Adjust Switch (Driver Side Front), Driver Seat Module(DSM), Memory Seats and Pedals<br>7.5 ’06-’08: Exterior Rear View Mirror Switch, Seat Control Switch, Driver Side Front, Driver Seat Module (DSM), Memory Seats and Pedals |
4 | 10 | DVD Battery Power, Rear Entertainment Module (RETM), Power Folding Mirror Module (’05-’08) |
5 | 7.5 | Powertrain Control Module (PCM), Autolamp/Sunload Sensor, Electronic Manual Temperature Control (EMTC) Module, Electronic Automatic Temperature Control (EATC) Module, Evaporative Emission Canister Vent Solenoid |
6 | 15 | Main Light Switch, Body Control Module (BCM) or Body Security Module (BSM), Parklamps, Instrument Panel Illumination, Vehicle Security Module (VSM) |
7 | 5 | Audio Unit (Start Signal), Digital Transmission Range (DTR) Sensor |
8 | 10 | Electronic Manual Temperature Control (EMTC) Module, Electronic Automatic Temperature Control (EATC) Module, Exterior Rear View Mirrors |
9 | 20 | ’06-’08: Fuel Pump Relay, Fuel Injectors, Injector Sense, Intake Manifold Runner Control (4.2L) |
10 | 20 | Trailer Tow Parking Lamp Relay, Trailer Tow Reversing Lamp Relay |
11 | 10 | A/C Clutch Relay, 4×4 Center Axle Disconnect Solenoid |
12 | 5 | ’06-’08: PCM Relay Coil |
13 | 10 | Electronic Manual Temperature Control (EMTC) Module, Electronic Automatic Temperature Control (EATC) Module, Indicator Flasher Relay (’05-’08), Heated Rear Window Relay, Blower Motor Relay, Battery Charge Trailer Tow Relay |
14 | 10 | Digital Transmission Range (DTR) Sensor, Daytime Running Lamps (DRL) Enable Relay, Brake Pedal Position Switch, A/C High-Pressure Switch, Positive Crankcase Ventilation Heater, Reversing Lamp Relay Coil, Brake-Shift Interlock Solenoid (’04), Heated PCV (5.4L), ABS (’05-’08), Trailer Tow Back-Up Lamps Relay Coil (’05-’07), Reverse Park Aid (’05-’07), EC Mirror (’05-’07), Navigation Radio (’07), Redundant Speed Control Switch (’05-’08) |
15 | 5 | Floor Shifter, Overdrive Cancel Switch, Instrument Cluster, Brake-Shift Interlock (BSI (’04)), Traction Control Switch |
16 | 10 | ABS Control Module (’04), Deactivator Switch, Brake-Shift Interlock Solenoid (’05-’08) |
17 | 15 | Fog Lamp Relay |
18 | 10 | Indicator Flasher Relay (’04), Parking Aid Module (PAM), Electronic Compass, Electrochromatic Inside Mirror Unit, Heated Seat Module, Body Control Module (BCM) or Body Security Module (BSM / VSM), Auxiliary Power Point, Reverse Sensing System (RSS), Power Rail (’08), Run/Start Feed – Overhead power point (’05-’07) |
19 | 10 | Passenger Air Bag Deactivation (PAD) Switch, Occupant Classification System Module (OCSM), Restraints Control Module (RCM) |
20 | 15 | ’04: Powertrain Control Module (PCM), 4×4 Power<br>’05-’08: Auxiliary Power Point |
21 | 15 | Instrument Cluster |
22 | 10 | Audio Unit, Roof Opening Panel Switch, Door Lock Switch |
23 | 10 | Right Low Beam Headlamp |
24 | 15 | Battery Saver Relay (Demand Lamps), Flex Fuel |
25 | 10 | Left Low Beam Headlamp |
26 | 20 | Horn Relay, Horn Power |
27 | 5 | Passenger Air Bag Deactivation (PAD) Indicator, Instrument Cluster Air Bag Warning Lamp, Instrument Cluster Power (’04-’07) |
28 | 5 | Powertrain Control Module (PCM) Power Diode, Passive Anti-Theft Transceiver Module (PATS), Fuel Pump Diode |
29 | 15 | Powertrain Control Module (PCM), 4×4 Power |
30 | 15 | ’05-’08: Powertrain Control Module (PCM), 4×4 Power |
31 | 20 | Audio Unit, Satellite Digital Radio Receiver System (SDARS) Module (’07-’08) |
32 | 15 | Evaporative Emission (EVAP) Canister Vent Valve, A/C Clutch Relay, Charge Motion Control Valve (CMCV), Left/Right Valve Cover Assembly, Heated Exhaust Gas Oxygen (HEGO) Sensors #11 and #21, Manifold Absolute Pressure/intake Air Temperature (MAP/IAT) Sensor, Positive Crankcase Ventilation (PCV) Heater, Intake Manifold Runner Control (IMRC) Module, EGR System Module, Vapor Management Valve (VMV), Mass Air Flow (MAF) Sensor, Variable Cam Timing (VCT), CID Sensor (4.2L engine), 4.6L/4.2L EGR (’06-’08), Electronic Fan Clutch (4.6L/5.4L engines (’07)), Camshaft Position Sensor |
33 | 15 | 4R70E/4R75E Transmission (Shift Solenoid), Heated Oxygen Sensor (H02S) Sensors |
No. | Amp | Circuits Protected |
34 | 20 | ’04-’05: Fuel injectors (’04-’05), Fuel Pump Relay, Powertrain Control Module (PCM) Power, Intake Manifold Runner Control (4.2L engine)<br>’06-’08: Powertrain Control Module (PCM) |
35 | 20 | High Beam Headlamps, Fog Lamp Relay, Daytime Running Lamps (DRL) Relay, Instrument Cluster High Beam Indicator, Fog Lamps, Main Light Switch |
36 | 10 | Trailer Tow Connector, Park/Stop/Turn Lamp (Right Rear), Multifunction Switch |
37 | 20 | Rear PowerPoint, Center Console PowerPoint |
38 | 25 | Subwoofer Power |
39 | 20 | ’04-’06: Instrument Panel PowerPoint |
40 | 20 | Daytime Running Lamps (DRL) Enable Relay, Body Control Module (BCM) / Vehicle Security Module (VSM), Main Light Switch, Multifunction Switch |
41 | 20 | ’04-’06: Data Link Connector (DLC), Front Cigar Lighter |
42 | 10 | Trailer Tow Connector, Park/Stop/Turn Lamp (Left Rear), Multifunction Switch |
101 | 30 | Starter Relay |
102 | 20 | Ignition Switch |
103 | 20 | ABS Control Module (Valves) |
104 | — | — |
105 | 30 | Trailer Electronic Brake Control Module |
106 | 30 | Trailer Tow Relay (Battery Charge) |
107 | 30 | Power Door Locks (Body Control Module (BCM) or Body Security Module (BSM / VSM)) |
108 | 30 | Passenger Power Seat |
109 | 30 | Driver Power Seat, Adjustable Pedal Switch, Driver Seat Module, Memory Module |
110 | 20 | ’07-’08: Data Link Connector (DLC), Cigar Lighter |
111 | 30 | Clockwise (CW) Motor 4×4 Relay, Counterclockwise (CCW) Motor 4×4 Relay |
112 | 40 | ABS Control Module (Pump Power) |
113 | 30 | Windshield Wiper Motor and Washer Pump |
114 | 40 | Rear Window Defrost Relay, Heated Mirror Power |
115 | 20 | ’08: Moonroof |
116 | 30 | Blower Motor Relay |
117 | 20 | ’07-’08: Instrument Panel PowerPoint |
118 | 30 | Heated Seats |
Circuit Breaker
No. | Amp | Circuits Protected |
401 | 30 | Rear Power Sliding Window Switch, Roof Opening Panel Module, Master Window Adjust Switch (Power Windows), Passenger Side Window Adjust Switch, Moonroof (’04-’07) |
Relay
No. | Circuits Protected |
R1 | Starter Solenoid |
R2 | Accessory Delay |
R3 | High Beam |
R4 | Rear Window Defrost |
R5 | Trailer Tow (Battery Charge) |
R6 | Blower Motor |
R201 | Trailer Tow (Parking Lamp) |
R202 | Fog Lamps |
R203 | Powertrain Control Module (PCM) |
R301 | Trailer Tow (Reversing Lamp) |
R302 | — |
R303 | Fuel Pump |
R304 | Battery Saver |
R305 | Horn |
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
No.
No. | A | Circuits Protected |
1 | 5 | Clockspring Illumination |
Diode
No. | Circuits Protected |
D1 | without Daytime Running Lamp (DRL): A/C Clutch |
Relay
No. | Circuits Protected |
R01 | Counterclockwise (CCW) Motor 4×4 |
R02 | Clockwise (CW) Motor 4×4 |
R03 | with DRL: Daytime Running Lamps (DRL) |
R201 | Daytime Running Lamps (DRL) |
R202 | A/C Clutch |
Additional Relay Box (’05-’08)
No.
No. | A | Circuits Protected |
03 | 5 | Clockspring Illumination |
Diode
No. | Circuits Protected |
D01 | A/C Clutch |
D02 | ’07-’08: One Touch Integrated Start (OTIS) |
Relay
No. | Circuits Protected |
R01 | Counterclockwise (CCW) Motor 4×4 |
R02 | Clockwise (CW) Motor 4×4 |
R03 | Daytime Running Lamps (DRL) High Beam Disable |
R201 | Daytime Running Lamps (DRL) |
R202 | A/C Clutch |
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
COLOR | |||||
Fuse rating | Mini fuses | Standard fuses | Maxi fuses | Cartridge maxi
fuses |
Fuse link cartridge |
2A | Grey | Grey | — | — | — |
3A | Violet | Violet | — | — | — |
4A | Pink | Pink | — | — | — |
5A | Tan | Tan | — | — | — |
7.5A | Brown | Brown | — | — | — |
10A | Red | Red | — | — | — |
15A | Blue | Blue | — | — | — |
20A | Yellow | Yellow | Yellow | Blue | Blue |
25A | Natural | Natural | — | — | — |
30A | Green | Green | Green | Pink | Pink |
40A | — | — | Orange | Green | Green |
50A | — | — | Red | Red | Red |
60A | — | — | Blue | Yellow | Yellow |
70A | — | — | Tan | — | Brown |
80A | — | — | Natural | Black | Black |
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.
Fuse/Relay Location | Fuse Amp Rating | Passenger Compartment Fuse Panel Description |
F01 | 10A* | Run/Accessory – Wipers, Instrument cluster, Audio for XL/STX |
F02 | 20A* | Stop/Turn lamps, ABS, T/T electric brake module, PCM (BOO signal), turn signal mirrors, CHMSL |
F03 | 7.5A* | Power mirrors, Memory seats and pedals |
F04 | 10A* | DVD battery power, Power fold mirror |
F05 | 7.5A* | Keep alive memory for Powertrain Control Module (PCM) and Climate control module |
F06 | 15A* | Parklamps, Body Security Module (BSM), Instrument panel illumination |
F07 | 5A* | Radio (start signal) |
F08 | 10A* | Heated mirrors, Switch indicator |
F09 | 20A* | Fuel pump relay, Fuel injectors, Injector sense |
F10 | 20A* | Trailer tow back-up lamps relay, Trailer tow parklamp relay |
F11 | 10A* | A/C clutch, 4×4 solenoid |
F12 | 5A* | PCM relay coil |
F13 | 10A* | Climate control module power, Flasher relay |
F14 | 10A* | Back-up lamp and Daytime Running Lamps (DRL) relay coil, A/C pressure switch, Redundant speed control switch, Heated PCV (5.4L), ABS |
F15 | 5A* | Overdrive cancel, Cluster |
F16 | 10A* | Brake-shift interlock solenoid |
F17 | 15A* | Fog lamp relay |
Fuse/Relay Location | Fuse Amp Rating | Passenger Compartment Fuse Panel Description |
F18 | 10A* | Electrochromatic mirror, Heated seats, BSM, Compass, RSS (Reverse Sensing System), Power rail |
F19 | 10A* | Restraints (Airbag module) |
F20 | 10A* | Power rail |
F21 | 15A* | Cluster keep alive power |
F22 | 10A* | Delayed accessory power for audio, power door lock switch and moon roof switch illumination |
F23 | 10A* | RH low beam headlamp |
F24 | 15A* | Battery saver power for demand lamps, Flex fuel |
F25 | 10A* | LH low beam headlamp |
F26 | 20A* | Horn |
F27 | 5A* | Passenger Airbag Deactivation (PAD) warning lamp, Cluster airbag warning lamp |
F28 | 5A* | SecuriLock transceiver (PATS), PCM IGN monitor |
F29 | 15A* | PCM 4×4 power |
F30 | 15A* | PCM 4×4 power |
F31 | 20A* | Radio power, Satellite radio module |
F32 | 15A* | 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, Variable Cam Timing (VCT), Heated Positive Crankcase Ventilation (PCV) valve (4.2L engine), CID sensor (4.2L engine), 4.6L/4.2L EGR |
Fuse/Relay Location | Fuse Amp Rating | Passenger Compartment Fuse Panel Description |
F33 | 15A* | Shift solenoid, CMS #12 and #22, Ignition coils |
F34 | 15A* | PCM power, IMRC (4.2L) |
F35 | 20A* | Instrument cluster high beam indicator, High beam headlamps, DRL disable relay |
F36 | 10A* | Trailer tow right turn/stop lamps |
37 | 20A* | Rear power point |
38 | 25A* | Subwoofer power |
39 | — | Not used |
40 | 20A* | Low beam headlamps, DRL |
41 | — | Not used |
42 | 10A* | Trailer tow left turn/stop lamps |
F101 | 30A** | Starter solenoid |
F102 | 20A** | Ignition switch feed |
F103 | 20A** | ABS valves |
F104 | — | Not used |
F105 | 30A** | Electric trailer brakes |
F106 | 30A** | Trailer tow battery charge |
F107 | 30A** | Power door locks (BSM) |
F108 | 30A** | Passenger power seat |
F109 | 30A** | Driver power seat, Adjustable pedals, Memory module (pedals, seats) |
F110 | 20A** | Cigar lighter, Diagnostic connector power |
F111 | 30A** | 4×4 motor relays |
F112 | 40A** | ABS pump power |
F113 | 30A** | Wipers and washer pump |
F114 | 40A** | Heated backlite, Heated mirror power |
F115 | 20A** | Moonroof |
Fuse/Relay Location | Fuse Amp Rating | Passenger Compartment Fuse Panel Description |
F116 | 30A** | Blower motor |
F117 | 20A** | Instrument panel power point |
F118 | 30A** | Heated seats |
401 | 30A Circuit breaker | Delayed accessory power: Power windows, Power sliding backlite |
R01 | Full ISO relay | Starter solenoid |
R02 | Full ISO relay | Accessory delay |
R03 | Full ISO relay | Hi-beam headlamps |
R04 | Full ISO relay | Heated backlite |
R05 | Full ISO relay | Trailer tow battery charge |
R06 | Full ISO relay | Blower motor |
R201 | Half ISO relay | Trailer tow park lamps |
R202 | Half ISO relay | Fog lamps |
R203 | Half ISO relay | PCM |
R301 | Printed circuit board | Trailer tow backup lamps |
R302 | — | Not used |
R303 | Printed circuit board | Fuel pump |
R304 | Printed circuit board | Battery saver |
R305 | Printed circuit board | Horn |
* Mini fuses ** Cartridge fuses |
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:
Fuse/Relay Location | Fuse Amp Rating | Description |
F03 | 5A | Clockspring illumination |
R01 | Full ISO Relay | 4×4 CCW |
R02 | Full ISO Relay | 4×4 CW |
R03 | 1⁄2 ISO Relay | Daytime Running Lamps (DRL) high
beam disable |
R201 | Relay | DRL |
R202 | Relay | A/C clutch |
D01 | Diode | A/C clutch |
D02 | Diode | One Touch Integrated Start (OTIS) |
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.
FAQs
What is the role of fuses in my Ford F-150 (2004-2008)?
Fuses serve as safety devices that protect electrical components in your truck by breaking the circuit if a predetermined current level is exceeded. This prevents damage or potential fires due to electrical overloads.
How many fuse boxes does the Ford F-150 (2004-2008) have?
The Ford F-150 from this period typically comes with two fuse boxes - one located in the engine compartment, known as the power distribution box, and another inside the truck, often referred to as the passenger compartment fuse panel.
Where can I locate the primary fuse box in the engine compartment?
The primary fuse box or power distribution box is usually located near the battery in the engine compartment, often within a protective casing.
How do I access the interior fuse box or passenger compartment fuse panel?
This fuse panel is often found below the dashboard on the driver's side. It might be behind a removable cover or panel.
Is there a fuse map available within the truck?
Yes, you can usually find a fuse diagram on the inside cover of both the power distribution box and the passenger compartment fuse panel. It will provide information on fuse ratings and their designated functions.
My headlights aren't working; which fuse should I inspect?
If your headlights aren't functioning, refer to the fuse box diagram to identify the fuse associated with the headlights. It will be labeled accordingly.
How frequently should I inspect the fuses in my Ford F-150?
While fuses don't have a predetermined lifespan, it's prudent to inspect them once a year or if you observe that electrical components in your vehicle aren't operating correctly.
Are all the fuses in my Ford F-150 of the same variety and rating?
No, there are various types and ratings of fuses used. It's essential to replace a blown fuse with one of the exact same rating to ensure the circuit remains protected.
What are the indications of a blown fuse?
A blown fuse can be identified by a broken or melted internal filament visible through its transparent housing. Some fuses might also show discoloration or signs of burning.
What should I do if a newly replaced fuse blows again quickly?
If a fuse blows repeatedly, there might be an underlying issue, such as a short circuit or a faulty component. In such scenarios, it's advisable to consult a professional mechanic or technician for a thorough diagnosis.
Can I change the fuses in my Ford F-150 by myself?
Yes, changing fuses is generally a simple task. However, always ensure the vehicle is turned off, and the keys are removed. Make sure you're using the appropriate fuse type and rating for replacement.
Is there any risk in using a fuse with a higher or lower rating than recommended?
Absolutely, using a fuse with a higher rating can risk damage to the circuit or even lead to fires as the circuit won't be adequately protected. A lower-rated fuse, on the other hand, will blow prematurely, even if the circuit is normal.