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MANUAL HEATING AND AIR CONDITIONING
SYSTEM
1.Fan speed
adjustment:Controls
the volume of air
circulated in the
vehicle.
2.Temperature selection:Controls the
temperature of the airflow in the vehicle.
3.Air flow selections:Controls the direction of
the airflow in the vehicle. See the following for a
brief description on each control.
MAX A/C:Uses recirculated air through the
instrument panel registers to cool the vehicle. This
mode is more noisy than A/C, but is more
economical and efficient. May reduce undesirable
odors from entering the vehicle.
A/C:Uses outside air to cool the vehicle. Air flows
from the instrument panel register vents only.
:Distributes outside air through the instrument
panel vents.
O (OFF):Outside air is shut out and the fan will
not operate.
:Distributes outside air through the floor vents.
:Distributes outside air through the windshield
defroster vents and floor vents.
:Distributes outside air through the windshield
defroster vents.
OPERATING TIPS
•To reduce fog build up on the windshield during
humid weather, place the air flow selector in
the
position.
•To reduce humidity build up inside the vehicle:
duringcold weather,do not drive with the air
flow selector in the OFF or MAX A/C position.
duringwarm weather,do not drive with the air
flow selector in the OFF position.
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Climate Controls
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Page 34 of 240
•Under normal weather conditions, do not leave
the air flow selector in MAX A/C or OFF when the
vehicle is parked. This allows the vehicle to
“breathe”using the outside air inlet vents.
•Do not put objects under the front seats that will
interfere with the air flow to the back seats.
•Remove any snow, ice or leaves from the air
intake area at the base of the windshield.
Do not place objects on top of the
instrument panel as these objects may
become projectiles in a collision or sudden stop.
REAR WINDOW DEFROSTER
Ensure that the ignition
is in the ON position.
Press the control to
clear the rear window of thin ice and fog. The LED
will illuminate.
The defroster turns off automatically after 10
minutes or when the ignition is turned OFF. To
manually turn off the defroster before 10 minutes,
push the control again.
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Climate Controls
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Page 36 of 240
Always remember to turn on your
headlamps at dusk or during inclement
weather. The Daytime Running Light (DRL)
System does not activate your tail lamps and
generally may not provide adequate lighting during
these conditions. Failure to activate your
headlamps under these conditions may result in a
collision.
High beams
Push the lever toward
the instrument panel to
activate. Pull the lever
towards you to
deactivate.
Flash to pass
Pull toward you slightly
to activate and release
to deactivate.
PANEL DIMMER CONTROL
To adjust the
brightness of the
instrument panel:
•Rotate
clockwise/counterclockwise
when the headlamp
control is in the
parking lamp or low-beam position.
To turn on the courtesy lamps:
•Rotate fully counterclockwise.
OFFHI
LO
OFFHI
LO
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
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Using the right bulbs
Replacement bulbs are specified in the chart below.
Headlamp bulbs must be marked with an authorized
“D.O.T.”for North America and an“E”for Europe to
assure lamp performance, light brightness and
pattern and safe visibility. The correct bulbs will not
damage the lamp assembly or void the lamp
assembly warranty and will provide quality bulb burn
time.
Function Trade Number
Tail lamp, brakelamp, turn lamp 3157K
Park lamp, turn lamp, side marker
(front)3157 AK (amber)
Backup lamp 3156K
License plate lamp 168
High-mount brakelamp 906
Headlamps 9007
Luggage compartment lamp 906
Dome lamp 575
Map lamp 575
Visor vanity lamp 74
Glove compartment 194
Rearview mirror map lamps 192
Fog lamp 899
All replacement bulbs are clear in color except where
noted.
To replace all instrument panel lights - see your dealer.
Interior bulbs
Check the operation of all bulbs frequently.
Map lamps
For bulb replacement, see a qualified service
technician or your dealer.
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
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Page 126 of 240
Passenger compartment fuse panel
The fuse panel is located below and to the left of
the steering wheel by the brake pedal. Remove the
panel cover to access the fuses.
To remove a fuse use the fuse puller tool provided
on the fuse panel cover.
The fuses are coded as follows:
Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment
Fuse Panel Description
1 20A Cigar lighter
2 20A Engine controls
3—Not used
4 10A Right-hand low beam
headlamp
5 15A Instrument cluster, Traction
control switch
6 20A Starter motor relay
7 15A GEM, Interior lamps
8 20A Engine controls
9 30A Mach 460 subwoofers
10 10A Left-hand low beam
headlamp
SEE OWNERS MANUAL FOR FUSE INFO
4212345
76891011
131214151617
191820212223
252426272829
313032333435
373638394041
43
44
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
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Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment
Fuse Panel Description
11 15A Back-up lamps
12 2A Heated PCV
13 15A Electronic flasher
14—Not used
15 15A Power lumbar
16—Not used
17 15A Speed control servo, Shift
lock actuator
18 15A Electronic flasher
19 15A Power mirror switch, GEM,
Anti-theft relay, Power door
locks, Door ajar switches
20 15A Convertible top switch
21 5A Instrument cluster and
engine control memory
22—Not used
23 15A A/C clutch, Defogger switch
24 30A Climate control blower
motor
25 25A Luggage compartment lid
release
26 30A Wiper/Washer motor, Wiper
relays
27 20A Radio
28 15A GEM, Overdrive cancel
switch
29 15A Anti-lock Brake System
(ABS) module
30 15A Daytime Running Lamps
(DRL) module
31 10A Data link connector
32 15A Radio, GEM
33 15A Stop lamp switch, Speed
control deactivation switch
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
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Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment
Fuse Panel Description
34 20A Instrument Cluster, CCRM,
Data link connector,
Securilock transceiver
module
35 15A Shift lock actuator,
Powertrain Control Module
(PCM), Speed control servo,
ABS module
36 15A Air bag control module
37 5A Adjustable illumination
38 20A High beams
39 5A GEM
40—Not used
41 15A Brake lamp
42—Not used
43 20A CB Power windows
44—Not used
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.
Always disconnect the battery before
servicing high current fuses.
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 theBatterysection of the
Maintenance and specificationschapter.
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
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WINDOWS AND WIPER BLADES
The windshield, rear and side windows and the
wiper blades should be cleaned regularly. If the
wipers do not wipe properly, substances on the
vehicle’s glass or the wiper blades may be the cause.
These may include hot wax treatments used by
commercial car washes, tree sap, or other organic
contamination. To clean these items, please follow
these tips:
•The windshield, rear windows and side windows
may be cleaned with a non-abrasive cleaner such
as Motorcraft Ultra Clear Spray Glass Cleaner
(ZC-23), available from your dealer.
•Do not use abrasives, as they may cause
scratches.
•Do not use fuel, kerosene, or paint thinner to
clean any parts.
•Wiper blades can be cleaned with isopropyl
(rubbing) alcohol or windshield washer solution.
Be sure to replace wiper blades when they appear
worn or do not function properly.
CONVERTIBLE TOP AND PADDED MOLDING
Wash with Motorcraft Triple Clean (ZC-13), which is
available from your dealer.
•Do not use stiff bristle brushes or abrasive
materials or cleaners.
•Hot waxes applied by commercial car washes can
affect the cleanability of vinyl material.
•Using high water pressure or wand-type car
washes against the convertible top and windows
may cause water leaks and possible seal damage.
INSTRUMENT PANEL AND CLUSTER LENS
Clean the instrument panel with a damp cloth, then
dry with a dry cloth.
•Avoid cleaners or polish that increase the gloss of
the upper portion of the instrument panel. The
dull finish in this area helps protect the driver
from undesirable windshield reflection.
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Cleaning
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