Page 217 of 304
Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
15 — Not used
16 — Not used
17 15A* Exterior lamps
18 20A* Flasher, Brake On-Off (BOO)
lamps
19 10A* Body Security Module (BSM)
(Security)
20 15A* Trailer tow Electric Brake
Controller (EBC)
21 20A* Heated seats
22 20A* Engine control
23 20A* Engine control (gasoline engine
only)/Climate control (Diesel
engine only)
24 15A* Tow haul, Blower relay, Electronic
Automatic Temperature Control
(EATC)
25 — Not used
26 10A* Air bags
27 15A* Ignition switch RUN feed
28 10A* Trailer tow EBC logic
29 10A* Customer access
30 15A* High beam headlamps
31 15A* 4x4
32 5A* Radio (start)
33 15A* Cluster, 4x4, Wipers
34 10A* BOO switch (Low current)
35 10A* Instrument cluster
36 — Not used
37 15A* Horn
38 20A* Trailer tow park lamps
39 15A* Heated mirrors
REVIEW COPY
2005 F250/350/450/550(f23), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Roadside Emergencies
217
Page 218 of 304

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
REVIEW COPY
2005 F250/350/450/550(f23), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Roadside Emergencies
218
Page 219 of 304
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.
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.
REVIEW COPY
2005 F250/350/450/550(f23), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Roadside Emergencies
219
Page 220 of 304
The high-current fuses and relays are coded as follows.
Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
1 30A* Wipers
2 40A* Blower
3 30A* Electronic Shift on the Fly
(ESOF)
4 — Not used
5 50A* Injector Driver Module (IDM)
(Diesel engine only)
6 — Not used
7 30A* Horizontal Fuel Conditioner
Module (HFCM) (Diesel engine
only)
8 — Not used
9 20A** Trailer tow turn signals
10 10A** Powertrain Control Module (PCM)
keep alive power, Canister vent
solenoid (gasoline engine only)
11 10A** Anti-lock Brake System (ABS)
REVIEW COPY
2005 F250/350/450/550(f23), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Roadside Emergencies
220
Page 221 of 304

Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
12 2A** Brake pressure switch
13 15A** Daytime Running Lamps (DRL)
14 — Not used
15 15A** IDM logic (Diesel engine only)
16 — Not used
17 10A** A/C clutch
18 10A** IDM relay (Diesel engine only)
19 — Not used
20 10A** Trailer tow back-up lamps
21 — Not used
22 60A*** ABS (Coils)
23 60A*** ABS (Pump)
201
1 2ISO relay Trailer tow right turn signal/stop
lamp
202
1 2ISO relay Trailer tow left turn signal/stop
lamp
203
1 2ISO relay A/C clutch
204 — Not used
205
1 2ISO relay DRL #1
206
1 2ISO relay DRL #2
301 Full ISO relay DRL #3
302 Full ISO relay HFCM
303 Full ISO relay Blower
304 High-current
relayIDM (Diesel engine only)
* Cartdrige Fuse ** Mini Fuses *** Maxi fuse
JUMP STARTING YOUR VEHICLE
The gases around the battery can explode if exposed to flames,
sparks, or lit cigarettes. An explosion could result in injury or
vehicle damage.
REVIEW COPY
2005 F250/350/450/550(f23), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Roadside Emergencies
221
Page 222 of 304

Batteries contain sulfuric acid which can burn skin, eyes and
clothing, if contacted.
Do not attempt to push-start your vehicle. Automatic
transmissions do not have push-start capability; doing so may
damage the catalytic converter.
Preparing your vehicle
When the battery is disconnected or a new battery is installed, the
transmission must relearn its shift strategy. As a result, the transmission
may have firm and/or soft shifts. This operation is considered normal and
will not affect function or durability of the transmission. Over time, the
adaptive learning process will fully update transmission operation.
1.Use only a 12–volt supply to start your vehicle.
2. Do not disconnect the battery of the disabled vehicle as this could
damage the vehicle’s electrical system.
3. Park the booster vehicle close to the hood of the disabled vehicle
making sure the two vehiclesdo nottouch. Set the parking brake on
both vehicles and stay clear of the engine cooling fan and other moving
parts.
4. Check all battery terminals and remove any excessive corrosion before
you attach the battery cables. Ensure that vent caps are tight and level.
5. Turn the heater fan on in both vehicles to protect any electrical
surges. Turn all other accessories off.
REVIEW COPY
2005 F250/350/450/550(f23), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Roadside Emergencies
222
Page 223 of 304
Connecting the jumper cables
1. Connect the positive (+) jumper cable to the positive (+) terminal of
the discharged battery.
Note:In the illustrations,lightning boltsare used to designate the
assisting (boosting) battery.
2. Connect the other end of the positive (+) cable to the positive (+)
terminal of the assisting battery.
+–+–
+–+–
REVIEW COPY
2005 F250/350/450/550(f23), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Roadside Emergencies
223
Page 224 of 304
3. Connect the negative (-) cable to the negative (-) terminal of the
assisting battery.
4. Make the final connection of the negative (-) cable to an exposed
metal part of the stalled vehicle’s engine, away from the battery and the
carburetor/fuel injection system.Do notuse fuel lines, engine rocker
covers or the intake manifold asgroundingpoints.
Do not connect the end of the second cable to the negative (-)
terminal of the battery to be jumped. A spark may cause an
explosion of the gases that surround the battery.
5. Ensure that the cables are clear of fan blades, belts, moving parts of
both engines, or any fuel delivery system parts.
Jump starting
1. Start the engine of the booster vehicle and run the engine at
moderately increased speed.
2. Start the engine of the disabled vehicle.
+–+–
+–+–
REVIEW COPY
2005 F250/350/450/550(f23), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Roadside Emergencies
224