FORD F150 2008 11.G Owners Manual

To reinstall the fuse box cover, place the top part of the cover on the
fuse panel, then push the bottom part of the cover until you hear it click
shut. Gently pull on the cover to make sure it is seated properly.
Always disconnect the battery before servicing high current
fuses.
To reduce risk of electrical shock, always replace the cover to
the Power Distribution Box and Auxiliary Relay 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 fuses are coded as follows.
2008 F-150(f12)
Owners Guide (post-2002-fmt)
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Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
F01 10A* Run/Accessory - Wipers,
Instrument cluster, Audio for
XL/STX
F02 20A* Stop/Turn lamps, ABS, T/T
electric brake module, PCM (BOO
signal), turn signal mirrors,
CHMSL
F03 7.5A* Power mirrors, Memory seats and
pedals
F04 10A* DVD battery power, Power fold
mirror
F05 7.5A* Keep alive memory for Powertrain
Control Module (PCM) and
Climate control module
F06 15A* Parklamps, Body Security Module
(BSM), Instrument panel
illumination
F07 5A* Radio (start signal)
F08 10A* Heated mirrors, Switch indicator
F09 20A* Fuel pump relay, Fuel injectors,
Injector sense
F10 20A* Trailer tow back-up lamps relay,
Trailer tow parklamp relay
F11 10A* A/C clutch, 4x4 solenoid
F12 5A* PCM relay coil
F13 10A* Climate control module power,
Flasher relay
F14 10A* Back-up lamp and Daytime
Running Lamps (DRL) relay coil,
A/C pressure switch, Redundant
speed control switch, Heated PCV
(5.4L), ABS
F15 5A* Overdrive cancel, Cluster
F16 10A* Brake-shift interlock solenoid
F17 15A* Fog lamp relay
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Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
F18 10A* Electrochromatic mirror, Heated
seats, BSM, Compass, RSS
(Reverse Sensing System), Power
rail
F19 10A* Restraints (Airbag module)
F20 10A* Power rail
F21 15A* Cluster keep alive power
F22 10A* Delayed accessory power for
audio, power door lock switch and
moon roof switch illumination
F23 10A* RH low beam headlamp
F24 15A* Battery saver power for demand
lamps, Flex fuel
F25 10A* LH low beam headlamp
F26 20A* Horn
F27 5A* Passenger Airbag Deactivation
(PAD) warning lamp, Cluster
airbag warning lamp
F28 5A* SecuriLock transceiver (PATS),
PCM IGN monitor
F29 15A* PCM 4x4 power
F30 15A* PCM 4x4 power
F31 20A* Radio power, Satellite radio
module
F32 15A* Vapor Management Valve (VMV),
A/C clutch relay, Canister vent,
Heated Exhaust Gas Oxygen
(HEGO) sensors #11 and #21,
CMCV, Mass Air Flow (MAF)
sensor, Variable Cam Timing
(VCT), Heated Positive Crankcase
Ventilation (PCV) valve (4.2L
engine), CID sensor (4.2L
engine), 4.6L/4.2L EGR
2008 F-150(f12)
Owners Guide (post-2002-fmt)
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Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
F33 15A* Shift solenoid, CMS #12 and #22,
Ignition coils
F34 15A* PCM power, IMRC (4.2L)
F35 20A* Instrument cluster high beam
indicator, High beam headlamps,
DRL disable relay
F36 10A* Trailer tow right turn/stop lamps
37 20A* Rear power point
38 25A* Subwoofer power
39 — Not used
40 20A* Low beam headlamps, DRL
41 — Not used
42 10A* Trailer tow left turn/stop lamps
F101 30A** Starter solenoid
F102 20A** Ignition switch feed
F103 20A** ABS valves
F104 — Not used
F105 30A** Electric trailer brakes
F106 30A** Trailer tow battery charge
F107 30A** Power door locks (BSM)
F108 30A** Passenger power seat
F109 30A** Driver power seat, Adjustable
pedals, Memory module (pedals,
seats)
F110 20A** Cigar lighter, Diagnostic connector
power
F111 30A** 4x4 motor relays
F112 40A** ABS pump power
F113 30A** Wipers and washer pump
F114 40A** Heated backlite, Heated mirror
power
F115 20A** Moonroof
2008 F-150(f12)
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Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
F116 30A** Blower motor
F117 20A** Instrument panel power point
F118 30A** Heated seats
401 30A Circuit
breakerDelayed accessory power: Power
windows, Power sliding backlite
R01 Full ISO relay Starter solenoid
R02 Full ISO relay Accessory delay
R03 Full ISO relay Hi-beam headlamps
R04 Full ISO relay Heated backlite
R05 Full ISO relay Trailer tow battery charge
R06 Full ISO relay Blower motor
R201 Half ISO relay Trailer tow park lamps
R202 Half ISO relay Fog lamps
R203 Half ISO relay PCM
R301 Printed circuit
boardTrailer tow backup lamps
R302 — Not used
R303 Printed circuit
boardFuel pump
R304 Printed circuit
boardBattery saver
R305 Printed circuit
boardHorn
* Mini fuses ** Cartridge fuses
2008 F-150(f12)
Owners Guide (post-2002-fmt)
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Auxiliary relay box
The relay box is located in the engine compartment on the left fender.
•With Daytime Running Lamp (DRL) or 4x4 options
•Without Daytime Running Lamp (DRL) and 4x4 options
The relays are coded as follows:
Fuse/Relay
LocationFuse Amp
RatingDescription
F03 5A Clockspring illumination
R01 Full ISO Relay 4x4 CCW
R02 Full ISO Relay 4x4 CW
R03
1⁄2ISO Relay Daytime Running Lamps (DRL) high
beam disable
R201 Relay DRL
R202 Relay A/C clutch
D01 Diode A/C clutch
D02 Diode One Touch Integrated Start (OTIS)
2008 F-150(f12)
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CHANGING THE TIRES
If you get a flat tire while driving, do not apply the brake heavily.
Instead, gradually decrease your speed. Hold the steering wheel firmly
and slowly move to a safe place on the side of the road.
Note:The tire pressure monitoring system (TPMS) indicator light will
illuminate when the spare tire is in use. To restore the full functionality
of the monitoring system, all road wheels equipped with tire pressure
monitoring sensors must be mounted on the vehicle.
Have a flat serviced by an authorized dealer in order to prevent damage
to the TPMS sensors, refer toTire Pressure Monitoring System
(TPMS)in theTires, Wheels and Loadingchapter. Replace the spare
tire with a road tire as soon as possible.
The use of tire sealants may damage your Tire Pressure
Monitoring System and should not be used.
Refer toTire Pressure Monitoring System (TPMS)in the
Tires, Wheels and Loadingchapter for important information. If
the tire pressure monitor sensor becomes damaged, it will no longer
function.
Dissimilar spare tire/wheel information
Failure to follow these guidelines could result in an increased
risk of loss of vehicle control, injury or death.
If you have a dissimilar spare tire/wheel, then it is intended for
temporary use only. This means that if you need to use it, you should
replace it as soon as possible with a road tire/wheel that is the same size
and type as the road tires and wheels that were originally provided by
Ford. If the dissimilar spare tire or wheel is damaged, it should be
replaced rather than repaired.
A dissimilar spare tire/wheel is defined as a spare tire and/or wheel that
is different in brand, size or appearance from the road tires and wheels
and can be one of three types:
1.T-type mini-spare:This spare tire begins with the letter “T” for tire
size and may have “Temporary Use Only” molded in the sidewall
2.Full-size dissimilar spare with label on wheel:This spare tire has
a label on the wheel that states: “THIS TIRE AND WHEEL FOR
TEMPORARY USE ONLY”
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When driving with one of the dissimilar spare tires listed above,do not:
•Exceed 50 mph (80 km/h)
•Load the vehicle beyond maximum vehicle load rating listed on the
Safety Compliance Label
•Tow a trailer
•Use snow chains on the end of the vehicle with the dissimilar spare
tire
•Use more than one dissimilar spare tire at a time
•Use commercial car washing equipment
•Try to repair the dissimilar spare tire
Use of one of the dissimilar spare tires listed above at any one wheel
location can lead to impairment of the following:
•Handling, stability and braking performance
•Comfort and noise
•Ground clearance and parking at curbs
•Winter weather driving capability
•Wet weather driving capability
3.Full-size dissimilar spare without label on wheel
When driving with the full-size dissimilar spare tire/wheel,do not:
•Exceed 70 mph (113 km/h)
•Use more than one dissimilar spare tire/wheel at a time
•Use commercial car washing equipment
•Use snow chains on the end of the vehicle with the dissimilar spare
tire/wheel
The usage of a full-size dissimilar spare tire/wheel can lead to
impairment of the following:
•Handling, stability and braking performance
•Comfort and noise
•Ground clearance and parking at curbs
•Winter weather driving capability
•Wet weather driving capability
•All-Wheel driving capability (if applicable)
•Load leveling adjustment (if applicable)
2008 F-150(f12)
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When driving with the full-size dissimilar spare tire/wheel additional
caution should be given to:
•Towing a trailer
•Driving vehicles equipped with a camper body
•Driving vehicles with a load on the cargo rack
Drive cautiously when using a full-size dissimilar spare tire/wheel and
seek service as soon as possible.
Location of the spare tire and tools
The spare tire and tools for your vehicle are stowed in the following
locations:
Tool Location
Spare tire Under the vehicle, just forward of
the rear bumper
Jack, jack handle and lug nut
wrenchRegular Cab: Behind the interior
trim on the passenger side of the
cab
SuperCrew and SuperCab: Under
the rear seat on the passenger side
The wing nut must be removed and the jack screw turned
counterclockwise to release pressure before the jack can be removed
from the holder.
Removing the spare tire
1. Use the ignition key to remove
the lock cylinder from the access
hole of the bumper to allow access
to the guide tube. Assemble the jack
handle as shown in the illustration.
2008 F-150(f12)
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2. Fully insert the jack handle
through the bumper hole and into
the guide tube through the access
hole in the rear bumper.
3. Turn the handle counterclockwise until tire is lowered to the ground,
the tire can be slid rearward and the cable is slightly slack.
4. Slide the retainer through the center of the wheel.
Tire change procedure
To help prevent the vehicle from moving when you change a tire,
be sure the parking brake is set, then block (in both directions)
the wheel that is diagonally opposite (other side and end of the
vehicle) to the tire being changed.
If the vehicle slips off the jack, you or someone else could be
seriously injured.
Do not attempt to change a tire on the side of the vehicle close
to moving traffic. Pull far enough off the road to avoid the
danger of being hit when operating the jack or changing the wheel.
Refer to the instruction sheet (located with the jack) for detailed tire
change instructions.
1. Park on a level surface, activate
hazard flashers and set the parking
brake.
2. Place gearshift lever in P (Park)
and turn engine OFF.
BRAKE
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