Page 194 of 304
Standard fuse amperage rating and color
COLOR
Fuse
ratingMini
fusesStandard
fusesMaxi
fusesCartridge
maxi
fusesFuse 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
70A——Ta n—Brown
80A——Natural—Black
Passenger compartment fuse panel / power distribution box
The fuse panel is located below and to the left of the steering wheel by
the brake pedal. Remove the panel cover to access the fuses.
To remove the fuse panel cover,
turn the panel fasteners
counterclockwise.
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
194
Page 195 of 304
To remove a fuse use the fuse puller
tool provided on the fuse panel
cover.
The fuses are coded as follows.
Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
1 15A* Adjustable pedals
2—Not used
3—Not used
4 20A* Power point - instrument panel
5—Not used
6 20A* Trailer tow turn/stop relay
7 30A* High beam headlamps/Flash to
pass
8 15A* Backup lamps (Diesel engine
only)
9 20A* Heated mirrors
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
195
Page 196 of 304
Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
10 10A* A/C clutch
11 20A* Radio (main)
12 20A* Cigar lighter / OBD II
13 5A* Power mirrors/switches
14 15A* Daytime running lamps (DRL)
15—Not used
16—Not used
17 15A* Exterior lamps
18 20A* Turn lamps/Brake on-off switch
(high)
19 10A* Body security module/4x4 module
20 10A* Fuel Injection Control Module
(FICM) relay (Diesel engine only)
21—Not used
22 20A* Engine control
23 20A* Engine control (gasoline engine
only), Climate control (Diesel
engine only)
24 2A* Brake pressure switch/Speed
control
25 10A* 4-Wheel Anti-lock Brake System
(4WABS) module, Variable Fan
Control (VFC) (Diesel engine
only)
26 10A* Air bags
27 15A* Ignition switch Run feed
28 10A* EATC module/Front blower relay
coil
29 10A* Customer access
30 15A* Highbeam headlamps
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
196
Page 197 of 304

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
31 15A* Clutch interlock switch (manual
transmissions only), Transmission
range sensor (automatic
transmissions only) then to
starter relay coil (all
transmissions), 4x4
32 5A* Radio (start)
33 15A* Front wiper
34 10A* Brake on-off switch
35 10A* Instrument cluster
36 10A* PCM Memory
37 15A* Horn
38 20A* Trailer tow park lamps
39 15A* Trailer tow back-up lamps
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 lowbeam
47 10A* Right-hand lowbeam
48—Not used
101 30A** Trailer tow electric brake
102 30A** Door locks/Body security module
103 50A** Ignition switch (gasoline engine
only), FICM power (Diesel engine
only)
104 40A** Heated backlight
105 30A** Fuel heater (Diesel engine only)
106 30A** Front wiper main
107 40A** Front blower motor
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
197
Page 198 of 304

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
108—Not used
109 30A** Heated seats
110 50A** Ignition switch
111 30A** 4WD/Shift on the fly
112 30A** Left-hand power seats
113 30A** Starter motor
114 30A** Right-hand power seats
115 20A** Trailer tow battery charge
116 30A** Ignition switch
601 30A CB*** Window motors, Moonroof
602 60A** 4WABS module
210—Not used
211—Backup lamps relay (Diesel engine
only)
212—Not used
301—Front blower motor relay
302—Powertrain Control Module (PCM)
relay
303—Fuel heater relay (Diesel engine
only)
304—Heated backlight relay
305—Trailer tow battery charge relay
306—Delayed accessory relay
307—Starter relay
* Mini Fuses ** Maxi Fuses ***Circuit Breaker
Note: (Diesel engine only)The Fuel Injection Control Module (FICM)
logic 15A mini-fuse is located in the underhood relay block.
CHANGING A FLAT TIRE
If you get a flat tire while driving:
•do not brake heavily.
•gradually decrease the vehicle’s speed.
•hold the steering wheel firmly.
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
198
Page 301 of 304

recommendations ...................237
refill capacities ........................278
specifications ..................281, 284
Exhaust fumes ..........................128
F
Fail safe cooling ........................244
Fluid capacities .........................278
Foglamps .....................................41
Four-Wheel Drive vehicles .......143
description ..............................147
driving off road .......................149
electronic shift ................143, 147
indicator light .........................144
lever operated shift ................145
manual locking hubs ..............143
preparing to drive your
vehicle .....................................131
Fuel ............................................246
calculating fuel economy .......250
cap ...........................................248
capacity ...................................278
choosing the right fuel ...........248
comparisons with EPA fuel
economy estimates .................253
detergent in fuel .....................249
filling your vehicle with
fuel ...........................246, 248, 250
filter, specifications ........250, 277
fuel pump shut-off switch .....192
improving fuel economy ........250
octane rating ...................249, 284
quality ......................................249
running out of fuel .................249
safety information relating to
automotive fuels .....................246
Fuel pump shut-off switch .......192
Fuses ..................................193–194
G
Garage door opener ....................53Garage Door Opener
(see Homelink wireless
control system) ...........................62
Gas cap (see Fuel cap) ............248
Gas mileage
(see Fuel economy) .................250
Gauges .........................................15
transmission fluid
temperature gauge ...................19
GAWR
(Gross Axle Weight Rating)
calculating ...............................162
GVWR
(Gross Vehicle Weight Rating)
calculating ...............................162
H
Hazard flashers .........................192
Head restraints ...........................89
Headlamps ...................................40
aiming ........................................43
autolamp system .......................40
daytime running lights .............41
flash to pass ..............................42
high beam .................................42
replacing bulbs ...................45–46
turning on and off ....................40
Heating
heating and air conditioning
system .................................37–38
HomeLink universal
transceiver
(see Garage door opener) .........65
Homelink wireless control
system ..........................................62
Hood ..........................................233
I
Ignition ...............................124, 284
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
301
Page 302 of 304

Infant seats
(see Safety seats) .....................116
Inspection/maintenance (I/M)
testing ........................................255
Instrument panel
cleaning ...................................228
cluster ........................................12
lighting up panel and
interior .......................................42
J
Jump-starting your vehicle ......209
K
Keyless entry system .................80
autolock .....................................79
Keys
positions of the ignition .........124
L
Lamps
autolamp system .......................40
bulb replacement
specifications chart ..................44
daytime running light ...............41
fog lamps ...................................41
headlamps .................................40
headlamps, flash to pass ..........42
instrument panel, dimming .....42
interior lamps .....................43–44
replacing bulbs ...................44–49
Lane change indicator
(see Turn signal) ........................43
Lights, warning and indicator ....12
anti-lock brakes (ABS) ..........129
speed control ............................61
Load limits .................................159Loading instructions .................162
Locks
autolock .....................................79
childproof ..................................74
Lubricant specifications ...281, 284
Lumbar support, seats ...............88
M
Manual transmission .................138
fluid capacities ........................278
lubricant specifications ..........284
reverse .....................................140
Message center ...........................67
english/metric button ...............68
menu button .............................68
Mirrors .........................................52
fold away ...................................58
heated ........................................57
side view mirrors (power) .......56
Moon roof ....................................53
Motorcraft parts ................250, 277
O
Octane rating ............................249
Oil (see Engine oil) ..................235
Overdrive .....................................51
P
Parking brake ............................129
Parts (see Motorcraft parts) ....277
Pedals (see Power adjustable
foot pedals) .................................59
Power adjustable foot pedals .....59
Power distribution box
(see Fuses) ...............................194
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
302