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Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
40 20A* Fuel pump
41 10A* Instrument cluster
42 15A* Delayed accessory
43 10A* Fog lamps
44 — Not used
45 10A* Ignition switch RUN/START feed
46 10A* Left-hand low beam headlamp
47 10A* Right-hand low beam headlamp
48 — Not used
101 30A** Trailer tow EBC
102 30A** BSM (Door locks)
103 30A** Ignition switch
104 — Not used
105 — Not used
106 — Not used
107 20A** Trailer tow battery charge
108 30A** Upfitter #1
109 30A** Upfitter #2
110 30A** Ignition switch
111 — Not used
112 30A** Power seat (Driver)
113 30A** Starter
114 30A** Power seat (Passenger)
115 20A** Upfitter control
116 30A** Ignition switch
210 — Not used
211
1 2ISO relay Back-up lamps
212 — Not used
301 Full ISO relay Trailer tow battery charge
302 Full ISO relay Powertrain Control Module (PCM)
303 — Not used
2005 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA_English(fus)
Roadside Emergencies
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Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
304 — Not used
305 Full ISO relay Upfitter control
306 Full ISO relay Delayed accessory
307 Full ISO relay Starter
601 30A circuit
breakerDelayed accessory, Power
windows, Moonroof
602 — Not used
* Mini fuse ** Cartridge fuse
Power distribution box
The power distribution box is located in the engine compartment. The
power distribution box contains high-current fuses that protect your
vehicle’s main electrical systems from overloads.
Always disconnect the battery before servicing high current
fuses.
To reduce risk of electrical shock, always replace the cover to
the Power Distribution Box before reconnecting the battery or
refilling fluid reservoirs.
If the battery has been disconnected and reconnected, refer to the
Batterysection of theMaintenance and Specificationschapter.
2005 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA_English(fus)
Roadside Emergencies
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SERVICE RECOMMENDATIONS
To help you service your vehicle:
•We highlight do-it-yourself items in the engine compartment for easy
location.
•We provide ascheduled maintenance guidewhich makes tracking
routine service easy.
If your vehicle requires professional service, your dealership can provide
the necessary parts and service. Check yourWarranty Guide/Owner
Information Guideto find out which parts and services are covered.
Use only recommended fuels, lubricants, fluids and service parts
conforming to specifications. Motorcraft parts are designed and built to
provide the best performance in your vehicle.
PRECAUTIONS WHEN SERVICING YOUR VEHICLE
•Do not work on a hot engine.
•Make sure that nothing gets caught in moving parts.
•Do not work on a vehicle with the engine running in an enclosed
space, unless you are sure you have enough ventilation.
•Keep all open flames and other burning (cigarettes) material away
from the battery and all fuel related parts.
Working with the engine off
•Automatic transmission:
1. Set the parking brake and shift to P (Park).
2. Turn off the engine and remove the key.
3. Block the wheels.
•Manual transmission:
1. Set the parking brake, depress the clutch and place the gearshift in 1
(First).
2. Turn off the engine and remove the key.
3. Block the wheels.
Working with the engine on
•Automatic transmission:
1. Set the parking brake and shift to P (Park).
2. Block the wheels.
2005 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA_English(fus)
Maintenance and Specifications
Maintenance and Specifications
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IDENTIFYING COMPONENTS IN THE ENGINE COMPARTMENT
5.4L V8 gasoline engines
Refer to the6.0 Liter Power Stroke Direct Injection Turbo Diesel
Owner’s Guide Supplementfor diesel engine component locations.
1. Transmission fluid dipstick (automatic transmission)
2. Air filter assembly
3. Engine coolant reservoir
4. Brake fluid reservoir
5. Clutch fluid reservoir (manual transmission)
6. Underhood relay box
7. Power steering fluid reservoir
8. Engine oil dipstick
9. Engine oil filler cap
10. Windshield washer fluid reservoir
11. Battery
2005 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA_English(fus)
Maintenance and Specifications
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6.8L V10 gasoline engine
Refer to the6.0 Liter Power Stroke Direct Injection Turbo Diesel
Owner’s Guide Supplementfor diesel engine component locations.
1. Transmission fluid dipstick (automatic transmission)
2. Engine coolant reservoir
3. Brake fluid reservoir
4. Clutch fluid reservoir (manual transmission)
5. Underhood relay box
6. Power steering fluid reservoir
7. Air filter assembly
8. Engine oil dipstick
9. Engine oil filler cap
10. Windshield washer fluid reservoir
11. Battery
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2005 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA_English(fus)
Maintenance and Specifications
250