Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
11 10A Not used (spare)
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 Not used (spare)
32 10A Restraints Control Module (RCM),
Passenger Airbag Deactivation Indicator
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Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
33 10A Trailer tow brake controller, Trailer tow
battery charge relay coil
34 5A Not used (spare)
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, Navigation radio and amplifier
40 20A 4x4 module, Satellite radio module,
SYNC
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 customer access feed (PTO)
45 5A Front wiper logic, Blower motor relay
coil
46 7.5A Not used (spare)
47 30A Circuit
BreakerPower windows, Moon roof, 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.
WARNING:Always disconnect the battery before servicing high
current fuses.
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WARNING: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
RatingProtected Circuits
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
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Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
36 10A**Gasoline engines:Powertrain
Control Module (PCM) keep alive
power, Canister vent
Diesel engine:Engine Control
Module (ECM) keep alive power
37 10A** Transmission Control Module (TCM)
(Diesel engine only)
38 — Not used
39 50A* ECM power (Diesel engine)
40 30A* Starter relay
41 20A* Power point (Center console - Front)
42 30A* Trailer park lamp relay
43 20A* Power point (Center console - Rear)
44 30A* Trailer battery charge relay
45 30A* Driver power seat or Memory module
46 40A* Run/Start relay
47 50A* GPCM #2 (Diesel engine only)
48 30A* ESOF relay hi-lo
49 30A* Wiper motor
50 30A* PCM relay coil, PCM relay (Gasoline
engines only)
51 — Not used
52 — Not used
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
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Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
59 Relay PCM power bus (Fuses 68, 70, 72, 74,
76) (Gasoline engines only)
60 Diode One touch start (OTIS)
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
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
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recommendations ...................374
refill capacities ........................405
Event data recording ....................7
Exhaust fumes ..........................278
F
Fail safe cooling ........................382
Family entertainment system ....51
Fluid capacities .........................405
Fog lamps ....................................89
Four-Wheel Drive vehicles .......296
description ..............................301
driving off road .......................303
electronic shift ................297, 301
indicator light .........................298
lever operated shift ................299
manual locking hubs ..............297
preparing to drive your
vehicle .....................................284
Fuel ............................................383
calculating fuel
economy ..........................139, 388
cap ...........................................386
capacity ...................................405
choosing the right fuel ...........387
comparisons with EPA fuel
economy estimates .................391
detergent in fuel .....................388
filling your vehicle
with fuel ..................383, 386, 388
filter, specifications ........383, 404
fuel pump shut-off switch .....317
improving fuel economy ........388
octane rating ...................387, 409
quality ......................................387
running out of fuel .................388
safety information relating to
automotive fuels .....................383Fuel pump shut-off switch .......317
Fuses ..................................318–319
G
Gas cap (see Fuel cap) ............386
Gas mileage (see Fuel
economy) ...................................388
Gauges .........................................21
transmission fluid
temperature gauge ...................26
H
Hazard flashers .........................316
Head restraints .................172, 178
Headlamps ...................................89
aiming ..................................91, 93
autolamp system .......................89
daytime running lights .............90
flash to pass ..............................90
high beam .................................90
replacing bulbs ...................97–99
turning on and off ....................89
Heating
heater only system ...................80
heating and air conditioning
system .................................81, 84
Homelink wireless control
system ........................................123
Hood ..........................................368
I
Ignition ...............................275, 409
Illuminated visor mirror ...........105
Infant seats
(see Safety seats) .....................206
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Index
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Pedals (see Power adjustable
foot pedals) ...............................115
Power adjustable foot pedals ...115
Power distribution box
(see Fuses) ...............................322
Power door locks ......................155
Power mirrors ...........................111
Power point ...............................107
Power steering ..........................283
fluid, checking and adding ....395
fluid, refill capacity ................405
Power Windows .........................108
Preparing to drive
your vehicle ...............................284
R
Radio ................................26, 28, 35
Rear seat entertainment
system ..........................................51
Relays ........................................318
Remote entry system ...............159
illuminated entry ............164–165
locking/unlocking doors ........155,
160–161
replacing the batteries ...........162
Reverse camera .........................294
Reverse sensing system ...........292
Roadside assistance ..................315
S
Safety belts
(see Safety restraints) .....181–186
Safety defects, reporting ..........356
Safety restraints ................181–186
Belt-Minder...........................189extension assembly ................192
for adults .........................182–186
for children .............................202
lap belt ....................................187
warning light and
chime ...............................188–189
Safety restraints - LATCH
anchors ......................................215
Safety seats for children ..........206
Safety Compliance
Certification Label ....................410
Satellite Radio Information ........48
Seats ..........................................172
child safety seats ....................206
cleaning ...................................364
heated ........................................84
memory seat ...................161, 177
SecuriCode keyless entry
system ........................................166
SecuriLock passive
anti-theft system ...............168–169
Servicing your vehicle ..............367
Setting the clock
AM/FM/CD .................................30
AM/FM/In-dash 6 CD ................37
Snowplowing ...............10, 312–313
Spark plugs,
specifications .....................404, 409
Special notice ..............................11
ambulance conversions ............10
diesel-powered vehicles .............9
four-wheel drive vehicles .......314
utility-type vehicles ..................10
Speed control ............................116
Starting your vehicle ........275–277
jump starting ..........................343
2009 F-250/350/450/550(f23)
Owners Guide, 3rd Printing
USA(fus)
Index
418
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