
Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box Description
118 20A** ABS
201 1/2 ISO Horn relay
202 1/2 ISO PCM relay
203 1/2 ISO Fuel pump relay
204 1/2 ISO A/C clutch relay
205 1/2 ISO Traction control switch relay
206 1/2 ISO Police vehicle relay
207—Not used
208 1/2 ISO Moonroof relay
209—Not used
301 Full ISO Blower motor relay
302 Full ISO Starter solenoid relay
303 Full ISO Air suspension relay
304 Full ISO Heated backlight relay
401—Not used
501 Diode PCM diode
502—Not used
503—Not used
601 50A** Crown North America (Police vehicle
option)
602 20A** Adjustable pedals, Power seat, Locks,
Decklid, Lumbar, Decklid release (Police
vehicle option)
* Mini fuse ** Circuit breaker/Maxi fuse
Relays
Relays are located in the power distribution box and should be replaced
by qualified technicians.
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.
2003 Crown Victoria(cro)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
171

Note:Failure to use the correct air filter element may result in severe
engine damage. The customer warranty may be voided for any damage to
the engine if the correct air filter element is not used.
INFORMATION ABOUT UNIFORM TIRE QUALITY GRADING
New vehicles are fitted with tires
that have a rating on them called
Tire Quality Grades. The Quality
grades can be found where
applicable on the tire sidewall
between tread shoulder and
maximum section width. For
example:
•Treadwear 200 Traction AA Temperature A
These Tire Quality Grades are determined by standards that the United
States Department of Transportation has set.
Tire Quality Grades apply to new pneumatic tires for use on passenger
cars. They do not apply to deep tread, winter-type snow tires,
space-saver or temporary use spare tires, tires with nominal rim
diameters of 10 to 12 inches or limited production tires as defined in
Title 49 Code of Federal Regulations Part 575.104(c)(2).
U.S. Department of Transportation-Tire quality grades:The U.S.
Department of Transportation requires Ford to give you the following
information about tire grades exactly as the government has written it.
Treadwear
The treadwear grade is a comparative rating based on the wear rate of
the tire when tested under controlled conditions on a specified
government test course. For example, a tire graded 150 would wear one
and one-half (1 1/2) times as well on the government course as a tire
graded 100. The relative performance of tires depends upon the actual
conditions of their use, however, and may depart significantly from the
norm due to variations in driving habits, service practices, and
differences in road characteristics and climate.
Traction AA A B C
The traction grades, from highest to lowest are AA, A, B, and C. The
grades represent the tire’s ability to stop on wet pavement as measured
under controlled conditions on specified government test surfaces of
asphalt and concrete. A tire marked C may have poor traction
performance.
2003 Crown Victoria(cro)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
226

The traction grade assigned to this tire is based on
straight-ahead braking traction tests, and does not include
acceleration, cornering, hydroplaning or peak traction characteristics.
Temperature A B C
The temperature grades are A (the highest), B and C, representing the
tire’s resistance to the generation of heat and its ability to dissipate heat
when tested under controlled conditions on a specified indoor laboratory
test wheel. Sustained high temperature can cause the material of the tire
to degenerate and reduce tire life, and excessive temperature can lead to
sudden tire failure. The grade C corresponds to a level of performance
which all passenger car tires must meet under the Federal Motor Vehicle
Safety Standard No. 109. Grades B and A represent higher levels of
performance on the laboratory test wheel than the minimum required by
law.
The temperature grade for this tire is established for a tire that
is properly inflated and not overloaded. Excessive speed,
underinflation, or excessive loading, either separately or in
combination, can cause heat buildup and possible tire failure.
SERVICING YOUR TIRES
Checking the tire pressure
•Use an accurate tire pressure gauge.
•Check the tire pressure when tires are cold, after the vehicle has been
parked for at least one hour or has been driven less than 5 km (3
miles).
•Adjust tire pressure to recommended specifications found on the
Certification label and inside fuel door.
Improperly inflated tires can affect vehicle handling and can fail
suddenly, possibly resulting in loss of vehicle control.
Tire rotation
Because your vehicle’s tires perform different jobs, they often wear
differently. To make sure your tires wear evenly and last longer, rotate
them as indicated in the scheduled maintenance guide. If you notice that
the tires wear unevenly, have them checked.
2003 Crown Victoria(cro)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
227

When replacing full size tires, never mix radial bias-belted, or
bias-type tires. Use only the tire sizes that are listed on the
Certification or Tire Label. Make sure that all tires are the same size,
speed rating, and load-carrying capacity. Use only the tire combinations
recommended on the label. If you do not follow these precautions,
your vehicle may not drive properly and safely.
Make sure that all replacement tires are of the same size, type,
load-carrying capacity and tread design (e.g.,“All Terrain”,
“Touring”, etc.), as originally offered by Ford.
Failure to follow these precautions may adversely affect the
handling of the vehicle, and increase the risk of loss of vehicle
control, vehicle rollover and/or personal injury.
Tires that are larger or smaller than your vehicle’s original tires may also
affect the accuracy of your speedometer.
SNOW TIRES AND CHAINS
Snow tires must be the same size and grade as the tires you
currently have on your vehicle.
The tires on your vehicle have all weather treads to provide traction in
rain and snow. However, in some climates, you may need to use snow
tires and chains.
Follow these guidelines when using snow tires and chains:
•Either cable type chains or SAE class S chains can be used.
•Install chains securely, verifying that the chains do not touch any
wiring, brake lines or fuel lines.
•Drive cautiously. If you hear the chains rub or bang against your
vehicle, stop and re-tighten the chains. If this does not work, remove
the chains to prevent damage to your vehicle.
•If possible, avoid fully loading your vehicle.
•Remove the tire chains when they are no longer needed. Do not use
tire chains on dry roads.
•The suspension insulation and bumpers will help prevent vehicle
damage. Do not remove these components from your vehicle when
using snow tires and chains.
2003 Crown Victoria(cro)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
229

Heating
heating and air conditioning
system .................................47, 49
HomeLink universal
transceiver (see Garage
door opener) ...................70, 82, 85
Hood ..........................................198
I
Ignition ...............................143, 233
Infant seats
(see Safety seats) .....................135
Inspection/maintenance (I/M)
testing ........................................221
Instrument panel
cleaning ...................................194
cluster ........................................10
lighting up panel and
interior .......................................55
J
Jack ............................................171
positioning ...............................171
storage .....................................171
Jump-starting your vehicle ......176
K
Keyless entry system ...............100
autolock .....................................99
keypad .....................................100
programming entry code .......101
Keys .............................93, 102–104
key in ignition chime ...............16
positions of the ignition .........143L
Lamps
autolamp system .......................54
bulb replacement
specifications chart ..................57
cargo lamps ...............................55
daytime running light ...............54
headlamps .................................54
headlamps, flash to pass ..........55
instrument panel, dimming .....55
interior lamps .....................56–57
replacing bulbs .......56–57, 59, 61
Lane change indicator
(see Turn signal) ........................56
Lights, warning and indicator ....10
air bag ........................................13
air suspension ...........................14
anti-lock brakes (ABS) ....12, 148
brake ..........................................12
charging system ........................13
check engine .............................10
fuel cap light .............................11
high beam .................................15
low fuel ......................................14
oil pressure ...............................13
overdrive off ..............................14
safety belt .................................13
speed control ............................80
traction control active ..............13
turn signal indicator .................14
Limited slip axle
(see Traction Loc) ....................156
Load limits .................................156
GAWR ......................................156
GVWR ......................................156
trailer towing ..........................156
Locks
autolock .....................................99
childproof ..................................94
doors ..........................................93
2003 Crown Victoria(cro)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
243

safety belt maintenance .........124
warning light and
chime ...................13, 16, 119–120
Safety seats for children ..........135
Seat belts
(see Safety restraints) .............110
Seats ..........................................106
child safety seats ....................135
cleaning ...................................194
SecuriLock passive
anti-theft system ...............102–104
Servicing your vehicle ..............197
Spare tire (see Changing
the Tire) ....................................172
Spark plugs,
specifications .....................230, 233
Specification chart,
lubricants ...........................232–233
Speed control ..............................77
Speedometer ...............................20
Starting your
vehicle ........................143–144, 146
jump starting ..........................176
Steering
speed sensitive .......................151
Steering wheel
controls ..........................64, 77, 81
tilting .........................................64
T
Tires ...........................171, 226–227
changing ..........................171–172
checking the pressure ............227
replacing ..................................228
rotating ....................................227
snow tires and chains ............229
tire grades ...............................227treadwear ................................226
Towing .......................................158
recreational towing .................161
trailer towing ..........................158
wrecker ....................................181
Traction control ........................149
active light ................................13
Traction-lok rear axle ...............156
Transmission .............................152
fluid, checking and adding
(automatic) .............................222
fluid, refill capacities ..............230
lubricant specifications ..232–233
Trip odometer .............................21
Trunk ...........................................94
remote release ....................91, 97
Turn signal ............................14, 56
V
Vehicle dimensions ...................233
Vehicle Identification Number
(VIN) ..........................................235
Vehicle loading ..........................156
Ventilating your vehicle ...........146
W
Warning chimes ...........................16
Warning lights (see Lights) .......10
Washer fluid ..............................200
Water, Driving through .............156
Windows
power .........................................74
Windshield washer fluid and
wipers
checking and adding fluid .....200
2003 Crown Victoria(cro)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
245