2008 FORD SUPER DUTY climate control

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse Panel
Description
12 7.5A Power mirror switch, Driver power seat
(Memory)
13 7.5A 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, 43 and 45, Engine
compartment starter relay coil #57 (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
32 10A Restraints Control Module (RCM),
Passenger Airbag Deactivation Indicator
33 10A Trailer tow brake controller, Trailer tow
battery charge relay coil
34 5A Not used (spare)
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
272

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse Panel
Description
35 10A Reverse Sensing System (RSS), 4x4
module, 4x4 solenoid, Traction control
switch, Tow/Haul switch (Diesel engine)
36 5A Passive Anti-Theft System (PATS)
transceiver, Cluster control
37 10A Dual automatic or Manual climate control,
PTC control
38 20A Subwoofer
39 20A Radio
40 20A 4x4 module, Satellite radio module
41 15A Radio, Electrochromatic rear view mirror,
Lock switch illumination
42 10A Heated seat relay coil, Upfitter switch
relay coils, Heated mirror relay coil
43 10A Fuel tank selector switch, 4x4 module
44 10A Run/Start customer access feed (PTO)
45 5A Front wiper logic, Blower motor relay coil
46 7.5A Not used (spare)
47 30A Circuit
BreakerPower windows, Moonroof, Power Sliding
Backlite
48 Relay Delayed accessory
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.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
273

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)
6 40A* ABS module (Pump)
7 30A* Upfitter auxiliary switch #1
8 30A* Upfitter auxiliary switch #2
9 40A* ABS module (Coil)
10 20A* Cigar lighter
11 20A* Instrument panel power point
12 15A** Brake On/Off (BOO) relay feed
13 5A ** Brake switch, Brake switch relay coil, SJB
module, 4x4 module
14 — Not used
15 — Not used
16 Relay A/C clutch
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
274

Climate control (see Air
conditioning or Heating) ............75
Clock adjust
6-CD in dash .............................31
AM/FM/CD .................................25
Clutch
fluid ..........................................342
operation while driving ..........244
recommended shift speeds ....244
Compass, electronic
set zone adjustment
...............127
Console
......................................116
overhead
....................................96
Controls
power seat
...............................154
steering column
......................107
Coolant
checking and adding
..............324
refill capacities
................327, 352
Cruise control
(see Speed control)
..................104
Customer Assistance
................265
Ford accessories for your
vehicle
.....................................313
Ford Extended Service
Plan
..........................................302
Getting assistance outside the
U.S. and Canada
.....................303
Getting roadside assistance
...265
Getting the service you
need
.........................................298
Ordering additional owner’s
literature
.................................304
Utilizing the
Mediation/Arbitration
Program
...................................302D
Daytime running lamps
(see Lamps) ................................81
Dipstick
automatic transmission
fluid ..........................................343
engine oil .................................319
Driveline universal joint and
slip yoke ....................................348
Driving under special
conditions ..................243, 256, 259
sand .........................................258
snow and ice ...........................260
through water .................258, 262
DVD system .................................43
E
Electronic message
center .................................116, 122
Emergencies, roadside
jump-starting ..........................290
Emergency Flashers .................267
Emission control system ..........338
Engine ........................................356
cleaning ...................................307
coolant .....................................324
diesel ...........................................8
fail-safe cooling .......................328
idle speed control ...................322
refill capacities ........................352
service points ..................316–317
starting after a collision .........267
Engine block heater .................234
Engine oil ..................................319
checking and adding ..............319
dipstick ....................................319
filter, specifications ........321, 350
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Index
362