
Anti-lock brake system:If the
ABS light stays illuminated or
continues to flash, a malfunction has
been detected, have the system
serviced immediately. Normal
braking is still functional unless the brake warning light also is
illuminated.
Air bag readiness:If this light fails
to illuminate when ignition is turned
to ON, continues to flash or remains
on, have the system serviced
immediately. A chime will also sound when a malfunction in the
supplemental restraint system has been detected.
Safety belt:Reminds you to fasten
your safety belt. A chime will also
sound to remind you to fasten your
safety belt, refer to theSeating and
Safety Restraintschapter.
Charging system:Illuminates when
the battery is not charging properly.
Engine oil pressure (if
equipped):Illuminates when the oil
pressure falls below the normal
range. Check the oil level and add
oil if needed. Refer toEngine oilin theMaintenance and
specificationschapter.
Traction controlAdvanceTrac
active (if equipped):Illuminates
when the Traction controlsystem
is active. It will be lit for a minimum
of four seconds or for the duration
of the Traction Controlevent,
refer to theDrivingchapter for more information.
Air suspension (if equipped):
•Standard instrument cluster
ABS
AIR
BAG
AIR
SUSP
2004 Crown Victoria(cro)
Owners Guide (post-2002-fmt)
USA English(fus)
Instrument Cluster
12

Replacing headlamp bulbs
To remove the headlamp bulb:
1. Make sure headlamp switch is in OFF position, then open the hood.
2. Remove the radiator cover by turning the three knobs to the unlock
position.
3. Disconnect the electrical
connector from the bulb by pulling
rearward.
4. Remove the bulb retaining ring by
rotating it counterclockwise (when
viewed from the rear) to free it
from the bulb socket, and slide the
ring off the plastic base. Keep the
ring to retain the new bulb.
5. Without turning, remove the old
bulb from the lamp assembly by
gently pulling it straight back out of
the lamp assembly.
To install the new bulb:
Handle a halogen headlamp bulb carefully and keep out of
children’s reach. Grasp the bulb only by its plastic base and do
not touch the glass. The oil from your hand could cause the bulb to
break the next time the headlamps are operated.
Note:If the bulb is accidentally touched, it should be cleaned with
rubbing alcohol before being used.
1. With the flat side of the new bulb’s plastic base facing upward, insert
the glass end of the bulb into the lamp assembly. Turn the bulb left or
right to align the grooves in the plastic base with the tabs in the lamp
assembly. When the grooves are aligned, push the bulb into the lamp
assembly until the plastic base contacts the rear of the lamp assembly.
2. Install the bulb retaining ring over the plastic base until it contacts the
rear of the socket by rotating it clockwise until you feel a“stop.”
2004 Crown Victoria(cro)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
42

If you are driving down a long or steep hill, shift to a lower gear.
Do not apply your brakes continuously, as they may overheat
and become less effective.
Under normal operating conditions, brake dust may accumulate on the
wheels. Some brake dust is inevitable as brakes wear and does not
contribute to brake noise. The use of modern friction materials with
emphasis on improved performance and environmental considerations
can lead to more dust than in the past. Brake dust can be cleaned by
weekly washing with soapy water and a soft sponge. Heavier deposits can
be removed with Motorcraft Wheel and Tire Cleaner (ZC-37–A).
Anti-lock brake system (ABS)
This vehicle is equipped with an anti-lock braking system (ABS). A noise
from the hydraulic pump motor and pulsation in the pedal may be
observed during ABS braking events. Pedal pulsation coupled with noise
while braking under panic conditions or on loose gravel, bumps, wet or
snowy roads is normal and indicates proper functioning of the vehicle’s
anti-lock brake system. If the vehicle has continuous vibration or shudder
in the steering wheel while braking, the vehicle should be inspected by a
qualified service technician.
The ABS operates by detecting the
onset of wheel lockup during brake
applications and compensates for
this tendency. The wheels are
prevented from locking even when
the brakes are firmly applied. The
accompanying illustration depicts
the advantage of an ABS equipped
vehicle (on bottom) to a non-ABS
equipped vehicle (on top) during hard braking with loss of front braking
traction.
Using ABS
•In an emergency or when maximum efficiency from the four-wheel
ABS is required, apply continuous force on the brake. The four wheel
ABS will be activated immediately, thus allowing you to retain steering
control of your vehicle and, providing there is sufficient space, will
enable you to avoid obstacles and bring the vehicle to a controlled
stop.
2004 Crown Victoria(cro)
Owners Guide (post-2002-fmt)
USA English(fus)
Driving
129

•The anti-lock system does not reduce stopping distance. Always leave
enough room between your vehicle and the vehicle in front of you to
stop.
•We recommend that you familiarize yourself with this braking
technique. However, avoid taking any unnecessary risks.
ABS warning lamp
The ABS warning lamp in the
instrument cluster momentarily
illuminates when the ignition is
turned on. If the light does not
illuminate momentarily at start up,
remains on or continues to flash, the ABS needs to be serviced.
With the ABS light on, the anti-lock
brake system is disabled and normal
braking is still effective unless the
brake warning light also remains
illuminated with parking brake
released. (If your brake warning lamp illuminates, have your vehicle
serviced immediately.)
Parking brake with auto-release (if equipped)
Apply the parking brake whenever
the vehicle is parked.
To set the parking brake:
1. Move the gearshift to P (Park).
2. Push pedal downward.
The BRAKE warning lamp in the
instrument cluster illuminates and
remains illuminated (when the
ignition is turned ON) until the
parking brake is fully released.
Always set the parking brake fully and make sure the gearshift is
latched in P (Park). Turn the ignition to the LOCK position and
remove the key whenever you leave your vehicle.
ABS
!
BRAKE
HOOD
!
BRAKE
2004 Crown Victoria(cro)
Owners Guide (post-2002-fmt)
USA English(fus)
Driving
130

The parking brake is not recommended to stop a moving vehicle.
However, if the normal brakes fail, the parking brake can be used to stop
your vehicle in an emergency. Since the parking brake applies only the
rear brakes, the vehicle’s stopping distance will increase greatly and the
handling of your vehicle will be adversely affected.
Your vehicle has an automatic parking brake release (except for
police/fleet vehicles which have the manual release). To release the
parking brake:
1. Start the vehicle.
2. Press the brake pedal.
3. Move the gearshift from the P (Park) position to one of the forward
gears (the parking brake will not release automatically when you shift
into reverse). The brake pedal must remain pressed while the gearshift is
moved.
If the parking brake fails to release
after completing this procedure, use
the manual parking brake release
lever.
Pull the lever to manually release
the parking brake.
TRACTION CONTROL(IF EQUIPPED)
Your vehicle may be equipped with the optional Traction Control
system. This system helps you maintain the stability and steerability of
your vehicle. It is especially useful on slippery and/or hilly road surfaces.
The system operates by detecting and controlling wheel spin. The system
borrows many of the electronic and mechanical elements already present
in the anti-lock braking system (ABS).
Wheel-speed sensors allow excess rear wheel spin to be detected by the
Traction Controlportion of the ABS computer. Any excessive wheel
spin is controlled by automatically applying and releasing the rear brakes
in conjunction with engine torque reductions. Engine torque reduction is
realized via the fully electronic spark and fuel injection systems. This
process is very sensitive to driving conditions and very fast acting. The
rear wheels“search”for optimum traction several times a second and
adjustments are made accordingly.
2004 Crown Victoria(cro)
Owners Guide (post-2002-fmt)
USA English(fus)
Driving
131

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
8 25A Powertrain Control Module (PCM)
power relay, Coil-on plugs, Radio
noise capacitor, Passive Anti-Theft
System (PATS)
9 5A Transmission range sensor
10 10A Rear window defrost, Heated
mirrors
11 5A Traction control indicator relay
(ABS w/traction control only)
12 15A Multi-function switch for
turn/hazard lamps
13 5A Radio
14 10A Anti-lock Brake System (ABS),
Instrument Cluster
15 15A Speed control module, Power
relay coil (Police vehicle option),
LCM, EATC blower motor relay,
Door lock switch illumination,
Heated seat switch, Moonroof
16 15A Reversing lamps, Shift lock, DRL
module, VAP Steering, Electronic
day/night mirror, Overhead
console, Air suspension, Climate
control, Heated seat module,
Speed chime module (GCC only),
DDM, Back-up lamps
17 7.5A Wiper motor
18—Not used
19 15A Brake lamps, Brake signal for
PCM, ABS and speed control
module, DDM
20 20A Spot lamp (Police vehicle option)
2004 Crown Victoria(cro)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
150

Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
9—Not used
10—Not used
11 20A* Daytime Running Lamps (DRL)
12—Not used
13—Not used
14—Not used
15—Not used
16—Not used
17—Not used
18—Not used
19 15A* Powertrain Control Module
(PCM), Fuel injectors, NGV fuel
injector module
20 15A* PCM, HEGOs
21—Not used
22—Not used
23—Not used
24—Not used
101 30A** Ignition switch, Starter motor
solenoid via starter relay, IP fuses
7, 9, 12 and 14
102 50A** Cooling fan (engine)
103 40A** Blower motor
104 40A** Heated backlight relay
105 30A** PCM power relay or NGV module
(natural gas vehicles only),
Diagnostic connector, PDB 19 and
20, A/C clutch relay, Fuel pump
module relay
106 40A** Anti-lock Brake System (ABS)
107 50A** Police rear access power point
(Police vehicles only)
2004 Crown Victoria(cro)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
153

Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
108 50A** Police rear access power point
(Police vehicles only)
109 50A** Light bar (Police vehicle option)
110 50A** Relay switch for front PDB
(Police vehicle option)
111 30A** Power relay switch feed (Police
vehicle option)
112 50A** Ignition switch feed to IP fuses 4,
6, 8, 11, 13, 15, 17, 20, 22 and 28
113 50A** Feeds IP fuses 3, 5, 21, 23, 25, 27
114 30A** VAP Steering, Air suspension
compressor, Instrument cluster
115 50A** Ignition switch feed to IP fuses 16
and 18
116 30A** Wipers
117 50A** B+ feed for front PDB (Police
vehicle option)
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 or Police stop
lamp relay (police vehicles only)
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
2004 Crown Victoria(cro)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
154