Ford F-150 Heritage (2004 year). Manual — part 37

Fuse/Relay

Location

Fuse Amp

Rating

Power Distribution Box

Description

109

—

Not used

110

30A**

Accessory delay relay

111

40A**

Ignition switch battery feed (start
and run circuits)

112

30A**

Drivers power seat, Adjustable
pedal switch

113

40A**

Ignition switch battery feed (run
and accessory circuits)

114

—

Not used

115

—

Not used

116

—

Not used

117

—

Not used

118

—

Not used

201

—

Trailer tow park lamp relay

202

—

Front wiper run/park relay

203

—

Trailer tow backup lamp relay

204

—

A/C clutch relay

205

—

Horn relay

206

—

Fog lamp relay

207

—

Front washer pump relay

208

—

Intercooler pump relay
(supercharged engine only)

209

—

Front wiper HI/LO relay

301

—

Fuel pump relay

302

—

Trailer tow battery charge relay

303

—

Not used

304

—

PCM relay

305

—

Fuel pump HI/LO relay
(supercharged engine only)

306

—

Inertia switch relay (supercharged
engine only)

401

—

Not used

Roadside Emergencies

150

Fuse/Relay

Location

Fuse Amp

Rating

Power Distribution Box

Description

501

—

PCM diode

502

—

A/C compressor diode

503

—

Not used

601

Circuit breaker

Power windows

602

—

Not used

*Mini fuses **Maxi fuses

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.

The use of tire sealants may damage your tires.

Dissimilar spare tire/wheel information

Failure to follow these guidelines could result in an increased
risk of loss of vehicle control, injury or death.

Your vehicle may be equipped with a dissimilar spare tire/wheel. 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. 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.

When driving with the 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

Roadside Emergencies

151

The usage of a 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)
When driving with the 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 dissimilar spare tire/wheel and seek
service as soon as possible.

Spare tire information

Your vehicle is equipped with a spare tire that may be used as a spare or
a regular tire. The spare tire or wheel may not match the road tire or
wheel, and is not equipped with wheel trim. The wheel trim from the
wheel/ tire may be used on the spare if the wheels match.

If your vehicle is equipped with 4WD, a spare tire of a different
size than the road tires should not be used. Use of such a tire

could result in damage to driveline components and an increased risk
of loss of vehicle control, vehicle rollover, personal injury or death.

Roadside Emergencies

152

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, lug nut wrench

Under the seat on the passenger
side

Jack handle

On top of the radiator support at
the front of the engine
compartment

Key, spare tire lock

In the glove box

Removing the spare tire

1. If equipped with a two piece lug wrench, assemble the lug wrench as
shown in the illustration.
• To assemble, screw the parts

together. To disassemble,
unscrew.

2. Attach the spare tire lock key (A)
to the jack handle (B).

Roadside Emergencies

153