2003 Ford F550 Fuse Box Diagram

In this article, we’ll explore the details of the 2003 Ford F550 fuse box diagram, equipping you with the knowledge to address electrical problems effectively.

Let’s understand the importance of the Fuse Box Diagram.

Standard fuse amperage rating and color

Fuse ratingMini fusesStandard fusesMaxi fusesCartridge maxi fusesFuse link cartridge

2003 Ford F550 Fuse Box Diagram

Passenger Compartment Fuse Panel/Power Distribution Box


The passenger compartment fuse panel is positioned below and to the left of the steering wheel, in close proximity to the brake pedal of your 2003 F550. To gain access to the fuses, you will need to remove the cover of the panel.

Removing the cover is a straightforward process. Just rotate the panel fasteners counterclockwise. You can locate the fuse panel cover below and to the left of the steering wheel, adjacent to the brake pedal.

Once the panel cover is removed, you will have access to the fuses. To take off the fuse panel cover, turn the panel fasteners counterclockwise.

Fuse/Relay LocationFuse Amp RatingDescription
115A*Adjustable pedals
2Not used
3Not used
420A*Power point – instrument panel
5Not used
620A*Trailer tow turn/stop relay
730A*High beam headlamps/Flash to pass
815A*Backup lamps (Diesel engine only)
920A*Heated mirrors
1010A*A/C clutch
1120A*Radio (main)
1220A*Cigar lighter / OBD II
135A*Power mirrors/switches
1415A*Daytime running lamps (DRL)
15Not used
16Not used
1715A*Exterior lamps
1820A*Turn lamps/Brake on-off switch(high)
1910A*Body security module/4×4 module
2010A*Fuel Injection Control Module(FICM) relay (Diesel engine only)
21Not used
2220A*Engine control
2320A*Engine control (gasoline engine only), Climate control (Diesel engine only)
242A*Brake pressure switch/Speed control
2510A*4-Wheel Anti-lock Brake System(4WABS) module, Variable FanControl (VFC) (Diesel engine only)
2610A*Air bags
2715A*Ignition switch Run feed
2810A*EATC module/Front blower relay coil
2910A*Customer access
3015A*Highbeam headlamps
3115A*Clutch interlock switch (manual transmissions only), Transmission range sensor (automatic transmissions only) then to starter relay coil (all transmissions), 4×4
325A*Radio (start)
3315A*Front wiper
3410A*Brake on-off switch
3510A*Instrument cluster
3610A*PCM Memory
3820A*Trailer tow park lamps
3915A*Trailer tow back-up lamps
4020A*Fuel pump
4110A*Instrument cluster
4215A*Delayed accessory
4310A*Fog lamps
44Not used
4510A*Ignition switch Run/Start feed
4610A*Left-hand lowbeam
4710A*Right-hand lowbeam
48Not used
10130A**Trailer tow electric brake
10230A**Door locks/Body security module
10350A**Ignition switch (gasoline engine only), FICM power (Diesel engine only)
10440A**Heated backlight
10530A**Fuel heater (Diesel engine only)
10630A**Front wiper main
10740A**Front blower motor
108Not used
10930A**Heated seats
11050A**Ignition switch
11130A**4WD/Shift on the fly
11230A**Left-hand power seats
11330A**Starter motor
11430A**Right-hand power seats
11520A**Trailer tow battery charge
11630A**Ignition switch
60130A CB***Window motors, Moonroof
60260A**4WABS module
210Not used
211Backup lamps relay (Diesel engine only)
212Not used
301Front blower motor relay
302Powertrain Control Module (PCM) relay
303Fuel heater relay (Diesel engine only)
304Heated backlight relay
305Trailer tow battery charge relay
306Delayed accessory relay
307Starter relay
* Mini Fuses ** Maxi Fuses ***Circuit Breaker

Tom Smith is a passionate car mechanic and automotive enthusiast, specializing in the intricate world of car fuse boxes. With years of hands-on experience under the hood, he has earned a reputation as a reliable expert in his field. As the founder and content creator of the popular blog website 'carsfuse.com,' Tom has dedicated himself to sharing his extensive knowledge of car fuse boxes and electrical systems with the world.

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