2012 FORD SUPER DUTY fuse box

Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
31 5A Trailer brake controller (brake
signal), Customer access
32 15A Moon roof, Auto dimming mirrors,
Power invertor, Driver and
passenger door lock switch
illumination
33 10A Restraint control module
34 10A Not used (spare)
35 5A Select shift switch, Reverse park
aid module, Trailer brake control
module
36 10A Fuel tank select switch
37 10A PTC heater
38 10A Radio faceplate
39 15A High beam headlamps
40 10A Parking lamps (in mirrors), Roof
marker lamps
41 7.5A Passenger airbag deactivation
indicator
42 5A Not used (spare)
43 10A Wiper relay
44 10A Upfitter switches
45 5A Not used (spare)
46 10A Climate control
47 15A Fog lamps, Fog lamp indicator (in
switch)
48 30A Circuit
BreakerPower windows switch, Power
rear sliding window switch
49 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.
Roadside Emergencies
329
2012 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)

WARNING:Always disconnect the battery before servicing high
current fuses.
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
2 — Not used
3 Relay Urea heaters (diesel engine)
4 — Not used
5 Relay Rear window defroster
6 — Not used
7 50A* Rear window defroster
8 30A* Passenger seat
9 30A* Driver seat
10 — Not used
11 — Not used
12 30A* Driver smart window
13 — Not used
Roadside Emergencies
330
2012 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)

P
Parental MyKey
programming .............................133
Parking brake ............................277
Parts
(see Motorcraftparts) ...........413
Pedals (see Power adjustable
foot pedals) ...............................113
Power adjustable foot pedals ...113
Power distribution box
(see Fuses) ...............................329
Power door locks ......................141
Power mirrors ...........................109
Power point ...............................103
Power steering ..........................286
fluid, checking and adding ....402
fluid, refill capacity ................414
Power Windows .........................105
Preparing to drive your
vehicle ........................................289
R
Radio ......................................61, 63
Rear-view camera system .........302
Recommendations for
attaching safety restraints for
children ......................................201
Relays ........................................324
Remote entry system .......145–146
illuminated entry ....................149
locking/unlocking
doors ................................146–147
Remote start ...........................150
replacement/additional
transmitters .............................149replacing the batteries ...........148
Remote start .............................150
Remote start climate
operation .....................................87
Reverse sensing system ...........300
Roadside assistance ..................322
S
Safety belts (see Safety
restraints) ..172, 174, 176, 178–179
Safety Canopy ...................189–190
Safety defects, reporting ..........364
Safety
restraints ...172, 174, 176, 178–179
Belt-Minder...........................180
extension assembly ................179
for adults .................174, 176, 178
for children .............................199
warning light and
chime ...............................179–180
Safety restraints - LATCH
anchors ......................................210
Safety seats for children ..........203
Safety Compliance
Certification Label ....................419
Satellite Radio Information ........76
Scheduled Maintenance Guide
Normal Scheduled
Maintenance and Log .............433
Seats ..........................................157
child safety seats ....................203
cleaning ...................................372
climate control ..................83, 166
easy access/easyout feature ..168
memory seat ...................147, 167
Index
452
2012 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)