fuses FORD F350 2008 User Guide

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
11 10A Not used
12 7.5A Power mirror switch, Driver power
seat (Memory)
13 5A Not used (spare)
14 10A Upfitter relay #3 feed
15 10A Climate control head
16 15A Upfitter Relay #4 Feed
17 20A All lock motor feeds
18 20A Heated seat relay feed
19 25A Not used (spare)
20 15A Adjustable pedals, Datalink
21 15A Fog lamp relay feed, Cornering
lamps
22 15A Park lamp relay feed
23 15A High beam headlight relay feed
24 20A Horn relay feed
25 10A Power telescoping mirror switch
Demand lamps - underhood and
illuminated visor (battery saver)
26 10A Cluster
27 20A Ignition switch feed, Passenger
compartment fuses 28, 42, 43, 44,
and 45, Engine compartment starter
relay coil #57 (Diesel engine),
Accessory shutoff control module (if
equipped) (Diesel engine), Engine
compartment starter relay diode
(gasoline engines)
28 5A Radio
29 5A Not used (spare)
30 5A Not used (spare)
31 10A Compass
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
301
ProCarManuals.com

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.
The high-current fuses are coded as follows:
Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
1 Relay Blower motor/Variable blower
control (Dual Zone Climate Control)
2 Relay Electronic Shift-on-the-Fly (ESOF)
Lo-Hi
3 Relay Heater mirror
4 — Not used
5 30A* Trailer Brake Controller (TBC)
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
303
ProCarManuals.com

Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
53 Relay PCM power bus (Fuses 68, 70, 72,
74, 76) (Diesel engine only)
54 Relay Starter solenoid
55 Relay Trailer tow park lamps
56 Relay Trailer tow battery charge
57 Relay Power Distribution Box (PDB) bus
(fuses 67, 69, 71, 73, 75, 77)
SJB Run /Start bus (Fuses 29–37,
46)
58 Relay ESOF hi-lo
59 Relay PCM power bus (Fuses 68, 70, 72,
74, 76) (Gasoline engines only)
60 Diode Starter relay (Gasoline engines only)
61 Diode A/C clutch
62 Diode Fuel pump
63 15A** Trailer tow back-up lamps
64 5A** Mirror marker lamps
65 — Not used
66 — Not used
67 — Not used
68 — Not used
69 — Not used
70 10A**Gasoline engines:A/C clutch relay
coil, Refrigerant Containment
Switch, Heated PCV
Diesel engine:A/C clutch relay
coil, Clutch switch, Fuel pump
cooler, A/C cycle pressure switch
71 5A** Fuel pump relay diode, PCM/ECM
Run/Start power
72 15A**Gasoline engines:Ignition coils
Diesel engine:Engine TCM
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
306
ProCarManuals.com

Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
73 2A** Reverse Camera System (RCS)
74 20A**Gasoline engines:VPWR: HEGO,
CMS, MAFS, EVMV, CMCV, VCT,
IMTV
Diesel engine:VPWR: Engine loads
75 5A** Back-up relay coil power
76 20A**Gasoline engines:VPWR: PCM
Diesel engine:VPWR: ECM
77 10A** ABS module logic
* Cartridge fuses ** Mini fuses
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.
•slowly move to a safe place on the side of the road.
Your vehicle may be equipped with a conventional spare tire that is
different in one or more of the following: type, brand, size, speed rating
and tread design. If this is the case, this dissimilar spare tire is still rated
for your vehicle loads (GAWR and GVWR).Temporary spare tires are not
equipped with Tire Pressure Monitor System (TPMS) sensors if the
system is present.
The use of tire sealant may damage your Tire Pressure
Monitoring System (if equipped) and should not be used.
If your vehicle is equipped with a Tire Pressure Monitoring
System, refer toTire Pressure Monitoring Systemin theTires,
Wheels and Loadingchapter for more information. If the tire pressure
monitor sensor becomes damaged, it will no longer function.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
307
ProCarManuals.com

Family entertainment system ....48
Fluid capacities .........................383
Foglamps .....................................85
Four-Wheel Drive vehicles .......276
description ..............................281
driving off road .......................283
electronic shift ................277, 281
indicator light .........................278
lever operated shift ................278
manual locking hubs ..............277
preparing to drive your
vehicle .....................................264
Fuel ............................................362
calculating fuel
economy ..........................130, 367
cap ...........................................364
capacity ...................................383
choosing the right fuel ...........365
comparisons with EPA fuel
economy estimates .................370
detergent in fuel .....................366
filling your vehicle with
fuel ...........................362, 364, 367
filter, specifications ........362, 382
fuel pump shut-off switch .....296
improving fuel economy ........367
octane rating ...................366, 387
quality ......................................366
running out of fuel .................366
safety information relating to
automotive fuels .....................362
Fuel pump shut-off switch .......296
Fuses ..................................297–298
G
Gas cap (see Fuel cap) ............364
Gas mileage
(see Fuel economy) .................367
Gauges .........................................19transmission fluid
temperature gauge ...................23
H
Hazard flashers .........................296
Head restraints .........................162
Headlamps ...................................85
aiming ..................................87, 89
autolamp system .......................85
daytime running lights .............86
flash to pass ..............................86
high beam .................................86
replacing bulbs ...................93–94
turning on and off ....................85
Heating
heating and air conditioning
system ...........................76–77, 80
Homelink wireless control
system ........................................116
Hood ..........................................347
I
Ignition ...............................255, 387
Infant seats
(see Safety seats) .....................196
Inspection/maintenance (I/M)
testing ........................................372
Instrument panel
cleaning ...........................340–341
cluster ........................................12
lighting up panel and interior .87
J
Jump-starting your vehicle ......322
K
Keyless entry system ...............157
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Index
394
ProCarManuals.com

autolock ...................................147
programming entry code .......157
Keys ...........................................160
positions of the ignition .........255
L
Lamps
autolamp system .......................85
daytime running light ...............86
fog lamps ...................................85
headlamps .................................85
headlamps, flash to pass ..........86
instrument panel, dimming .....87
interior lamps ...........................91
replacing bulbs .............91, 93–97
Lane change indicator
(see Turn signal) ........................90
Lights, warning and indicator ....12
anti-lock brakes (ABS) ..........261
Load limits .................................236
Loading instructions .................242
Locks
autolock ...................................147
childproof ................................150
Lug nuts ....................................321
Lumbar support, seats .............167
M
Manual transmission .................269
fluid capacities ........................383
reverse .....................................271
Message center .................120, 129
english/metric button .............132
system check button ..............132
warning messages ...........124, 135
Mirrors ...............................100, 103
fold away .........................105, 107heated ......................................105
side view mirrors (power) .....104
signal .......................................108
Moon roof ..................................115
Motorcraft parts ................362, 382
N
Navigation system .......................47
O
Octane rating ............................366
Oil (see Engine oil) ..................351
Overdrive .....................................99
P
Parking brake ............................261
Parts (see Motorcraft parts) ....382
Pedals (see Power adjustable
foot pedals) ...............................108
Power adjustable foot pedals ...108
Power distribution box
(see Fuses) ...............................303
Power door locks ......................146
Power mirrors ...........................104
Power point ...............................100
Power steering ..........................263
fluid, checking and adding ....373
fluid, refill capacity ................383
Power Windows .........................102
Preparing to drive your
vehicle ........................................264
R
Radio ................................23, 25, 32
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Index
395
ProCarManuals.com