Page 326 of 419
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 — Powertrain control module (PCM)
power relay
2 — Starter relay
3 — Blower motor relay
4 — Heated backlite relay
5 — Electric fan relay (high speed)
6 — Trailer tow park lamp relay
7 — Upfitter 1 relay
8 — Fuel pump
9 — Trailer tow battery charger
10 — Upfitter 2 relay
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Page 327 of 419
Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
11 30A** Power running board motors
12 40A** Electric fan
13 30A** Starter relay
14 30A** Passenger power seats
15 40A** Electric fan
16 — Not used
17 30A** Trailer brake
18 30A** Upfitter 1
19 30A** Upfitter 2
20 20A** 4x4 module (ESOF)
21 30A** Trailer tow battery charge
22 20A** Cigar lighter
23 — A/C clutch relay
24 — Upfitter 4 relay
25 — Heated mirror relay
26 10A* PCM – keep alive power, Canister
vent solenoid, Transmission, PCM
relay
27 20A* Fuel pump relay
28 10A* Upfitter 4
29 10A* 4x4
30 10A* A/C clutch
31 20A* Trailer tow park lamp relay
32 40A** Heated backlite
33 — Not used
34 40A** PCM relay
35 — Not used
36 30A** Roll stability control module (RSC)
37 — Trailer tow left hand stop/turn
relay
38 — Trailer tow right hand stop/turn
relay
Roadside Emergencies
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USA(fus)
Page 328 of 419
Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
39 — Back up lamps relay
40 — Electric fan relay
41 15A* Heated mirror
42 — Not used
43 20A* Backup lamp relay
44 15A* Upfitter 3
45 20A* Trailer tow stop turn relay feed
46 15A* Brake on/off (BOO) switch
47 60A** RSC module
48 — Not used
49 30A** Wiper motor, washer pump
50 — Not used
51 40A** Blower motor relay
52 — Not used
53 5A* PCM, 6R80 transmission
54 5A* 4x4 module, Back up lamp, RSC,
Trailer tow battery charge relay
55 5A* Electronic compass mirror (6R
transmission only)
56 — Not used
57 — Not used
58 15A* Trailer tow backup lamps
59 — Not used
60 — One-touch Start diode
61 — Fuel pump diode
62 — Upfitter 3 relay
63 25A** Electric fan
64 30A** Amplifier
65 20A** Auxiliary power point (instrument
panel)
66 20A** Auxiliary power point (inside
center console)
Roadside Emergencies
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USA(fus)
Page 329 of 419
Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
67 — Not used
68 20A** 4x4 module
69 30A** Passenger heated/cooled seats
70 — Not used
71 — Not used
72 20A** Auxiliary power point (Rear)
73 — Not used
74 30A** Driver power seat
75 15A* PCM – voltage power 1
76 20A* Voltage power 2, Voltage - battery
voltage, Mass air flow/Intake air
temp, CMS 12 and 22 with 6R80
transmission, Brake on/off switch
(BOO)
77 10A* Voltage power 3, Electric fan
clutch, A/C clutch relay coil, Floor
shifter (4–speed transmission)
78 15A* Ignition coils, Voltage power 4
79 10A* CMS 4–speed transmission, 12 and
22 with 4–speed transmission
80 5A* Steering wheel illumination
81 — Not used
82 10A* Trailer brake control module
(TBCM), After market center high
mounted stop lamp (CHMSL)
83 — Not used
84 — Not used
85 — Electric fan relay (low speed)
* Mini Fuses ** Cartridge Fuses
Roadside Emergencies
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Owners Guide, 1st Printing
USA(fus)
Page 417 of 419

MyKey ........................................141
N
Navigation system .......................58
O
Octane rating ....................383–384
Oil (see Engine oil) ..................368
P
Parental MyKey
programming .............................141
Parking brake ............................278
Parts
(see Motorcraftparts) ...........399
Passenger Occupant
Classification Sensor .................167
Power deployable running
boards ..........................................97
Power distribution box
(see Fuses) .......................322, 325
Power door locks ......................126
Power mirrors .............................94
Power point .................................90
Power steering ..........................285
fluid, checking and adding ....392
fluid, refill capacity ................400
fluid, specifications .................400
Power Windows ...........................91
Preparing to drive your
vehicle ........................................286
R
Radio ......................................40, 426-CD in dash .............................42
Rear heated seats .....................165
Rear-view camera system .........299
Recommendations for
attaching safety restraints for
children ......................................202
Relays ........................................321
Remote entry system ...............130
illuminated entry ....................135
locking/unlocking doors .131–132
panic alarm .............................132
replacement/additional
transmitters .............................134
replacing the batteries ...........133
Reverse sensing system ...........297
Roadside assistance ..................319
S
Safety belts
(see Safety restraints) ............166,
170–172, 176–177, 179
Safety Canopy ...........193–194, 196
Safety defects, reporting ..........352
Safety
restraints ...166, 170–172, 176–179
Belt-Minder...........................180
Belt-Minder,
deactivating/activating ...........183
extension assembly ................184
for adults .........171–172, 176–177
for children .............................199
lap belt ....................................174
Occupant Classification
Sensor ......................................167
warning light and
chime ...............................179–180
Index
417
2010 F-150(f12)
Owners Guide, 1st Printing
USA(fus)