2002 CHEVROLET CORVETTE air conditioning

3-
3-1
Section 3 Comfort Controls and Audio Systems
In this section, you'll find out how to operate the comfort control and audio systems offered with your vehicle.
Be sure to read about the particular systems supplied with your vehicle.
3
-2 Comfort Controls
3
-2 Manual Comfort Controls
3
-3 Automatic Electronic Dual Climate
Control System (Option)
3
-10 Sensors
3
-11 Air Conditioning
3
-11 Heating
3
-12 Defogging and Defrosting
3
-12 Rear Window Defogger
3
-13 Audio Systems
3
-13 Setting the Clock
3
-14 AM-FM Stereo with Cassette Tape Player
and Automatic Tone Control (If Equipped)3
-19 AM-FM Stereo with Compact Disc Player
and Automatic Tone Control
3
-24 Trunk-Mounted CD Changer (Option)
3
-29 Theft-Deterrent Feature
3
-31 Understanding Radio Reception
3
-32 Tips About Your Audio System
3
-33 Care of Your Cassette Tape Player
3
-34 Care of Your Compact Discs
3
-34 Care of Your Compact Disc Player
3
-34 Fixed Mast Antenna (Z06)
3
-35 Power Mast Antenna Care (Convertible)
3
-35 Integrated Windshield and Rear Window
Antennas (Coupe)

3-2
Comfort Controls
This section tells you how to make your air system work
for you.
With these systems, you can control the heating,
cooling and ventilation in your vehicle. Your vehicle
also has a flow
-through ventilation system described
later in this section.
Manual Comfort Controls
Fan Knob
(Fan): The left knob controls the force of air you
want. Turn the knob clockwise to increase fan speed or
counterclockwise to decrease fan speed. The fan must be
turned on for the air conditioning compressor to operate.Temperature Knob
The center knob controls the temperature of the air
coming through the system. Turn it counterclockwise
(toward the blue area) for cooler air. Turn it clockwise
(toward the red area) for warmer air.
Mode Knob
The right knob selects the location of where the air will
enter the vehicle.
(Vent): This setting directs most of the air through
the instrument panel outlets with a very small amount of
air directed to the lower outlets.
(Bi-Level): This setting directs air into the vehicle
in two ways. Cooler air is directed toward your upper
body through the instrument panel outlets, while warmer
air is directed through the lower outlets.
(Floor): This setting directs most of the air through
the lower ducts to the floor area of the vehicle with
some of the air also directed toward the windshield and
side window vents.

3-3
(Defog): This setting divides the air between the
windshield and lower outlets with a small amount of air
directed toward the side window vents. This is useful
when fog appears on the windshield or side glass due to
rain or snowy conditions.
(Defrost): Use this setting to quickly remove fog or
frost from the windshield. This setting directs most of
the airflow to the windshield with a small amount of air
directed toward the lower and side window outlets.
Mode Buttons
These buttons control the air intake, the air conditioning
and the rear window defogger operation.
(Outside Air): Press this button and it will bring
outside air into the vehicle. The light on the button will
come on when operating. Use this setting while trying to
defrost or defog windows to help clear moisture.
(Recirculate): Press this button to limit the amount
of outside air entering the vehicle by recirculating most
of the air inside the vehicle. The light on the button will
come on when operating. This setting is helpful when
you are trying to cool the air quickly or to limit odors
entering the vehicle. Recirculate cannot be used while in
the defrost or defog modes.Operating the system in the recirculation mode may
cause fogging of the vehicle's windows when the
weather is cold and damp. To clear the fog, switch the
system to either the defog or defrost mode and increase
the fan speed. To avoid re
-fogging of the windows,
operate the system in the outside air mode.
A/C (Air Conditioning): This button turns the
air conditioning compressor off or on under most
conditions. The light on the A/C button comes on
when the compressor is operating. The air conditioning
does not operate at temperatures below approximately
35
F to 40
F (2
C to 4
C). The air conditioning
cools and dehumidifies the air coming into the vehicle.
The air conditioning cannot be turned off in defrost,
as it helps to remove moisture from the vehicle. It also
helps to keep the windows clear.
The air conditioning may be forced off at high engine
speeds or high engine oil or coolant temperatures.
See ªRear Window Defoggerº later in this section for
more information.

3-4 Automatic Electronic Dual Climate Control
System (Option)
Your vehicle may be equipped with an automatic
electronic dual climate control system. This system can
automatically adjust and control temperature output, fan
speed, air delivery mode, air conditioning operation and
air intake. You can use the AUTO (automatic) setting or
override the automatic operation with manual control
settings. The set temperature will be remembered each
time you turn the ignition off and restart in the same
settings. You can use the memory option to recall your
settings. SeeªMemoryº in the Index.Digital Display
The digital display shows readings in Fahrenheit or
Celsius by pressing the E/M button (English/Metric)
on the Driver Information Center (DIC). When you
start the vehicle, the display will show the current fan
speed, air delivery mode and the driver
-set temperature
for approximately five seconds and then show the
outside temperature.
When the system is fully in the automatic mode, the
word AUTO will also appear on the display unless you
are in full cold 60
F (16
C) or full hot 90
F (32
C),
then the word AUTO will not display. If you have
selected a manual fan speed, then the fan symbol will
appear on the display. If a manual air delivery mode has
been selected, the delivery mode symbol will appear on
the display.

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Manual Settings
With the automatic electronic dual climate control
system, there are several manual settings you can use
to control the system and override the AUTO operation.
You can program the fan speed, air delivery mode, air
intake mode and control the air conditioning operation
using these settings. The system will still determine the
temperature output level based on the driver
-set
temperature and the passenger temperature offset.
(Fan Speed): Press the button with the fan symbol
on it to manually lock in the current fan speed and to
stop the automatic fan speed control. Pressing the
arrows will delete AUTO from the digital display.
The fan graphics with the fan speed bars will be shown.
To increase the fan speed so that more air flows into
the vehicle, press the up arrow on the fan switch.
To decrease the fan speed and airflow, press the down
arrow. The AUTO button must be pressed to return
to the automatic fan control.MODE: Press the MODE button to manually lock in
the current air delivery setting and to stop the automatic
mode control. Pressing the MODE button will delete
AUTO from the digital display and the mode graphics
will be shown. To change the setting, press the MODE
button again. The AUTO button must be pressed to
return to the automatic mode selection.
(Vent): This setting directs most of the air through
the instrument panel outlets and a very small amount to
the lower outlets.
(Bi-Level): This setting directs air into the vehicle
in two ways. Cooler air is directed toward your upper
body through the instrument panel outlets, while warmer
air is directed through the lower outlets.
(Floor): This setting directs most of the air to the
floor area and some of it toward the windshield and side
window vents.
(Defog): This setting divides the air between
the windshield and lower outlets and a small amount
toward the side window vents. This is useful when fog
appears on the windshield or side glass due to rain or
snowy conditions.

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Function Buttons
These buttons control the climate control ON/OFF,
air intake, front defrost, rear defrost and the air
conditioning operation.
OFF: Press the OFF button to turn off the climate
control system. This is the only setting that fully
shuts off the fan. The digital display will show only the
outside temperature. You can still adjust the driver set
temperature, the passenger temperature offset and the
air intake mode while in OFF.
A/C (Air Conditioning): This button turns
the air conditioning compressor off or on under most
conditions. The light on the A/C button will come on
when the compressor is operating in either the automatic
or manual mode. The air conditioning does not operate
at temperatures below approximately 35
F to 40
F
(2
C to 4
C). The light on the A/C button will flash if
pressed when air conditioning is not available. The air
conditioning cools and dehumidifies the air coming into
the vehicle. The air conditioning cannot be turned off in
defrost and defog, as it helps to remove moisture from
the vehicle. It also helps to keep the windows clear.If the system is operating in the AUTO mode, turning
the air conditioning off will delete AUTO from the
digital display and show current mode and fan settings.
The AUTO button must be pressed to return to the
automatic mode operation.
The air conditioning may be forced off at high engine
speeds or high engine oil or coolant temperatures.
(Outside Air): Press this button to provide outside
air. The light on this air intake button will come on to
show when it is operating. When in the AUTO mode,
the system automatically selects outside air instead of
recirculate, as required, to control the temperature in the
vehicle. By pressing outside air, the system will lock
into the outside air mode. Any adjustment to the air
intake must then be made manually. Outside air should
be used when trying to defrost or defog windows to help
reduce moisture inside of the vehicle.

3-11 Air Conditioning
On very hot days, the vehicle will cool down more
quickly and economically if you open the windows
long enough to let hot inside air escape. Then keep the
windows closed in order to allow the air conditioning
to work best. Maximum cooling will occur when the
recirculate setting is operating, airflow direction is in the
upper mode, and the temperature control knob (on a
manual climate control system) is turned all the way to
the blue area. These settings will be selected by the
automatic electronic dual climate control system if
operating in AUTO when maximum cooling is required.
When the air conditioning is on, you may sometimes
notice slight changes in the vehicle's engine performance
and power. This is normal. The system is designed to
help fuel economy while maintaining the desired
cooling level.
The air conditioning removes moisture from the air,
so you may notice water dripping from under the
vehicle when it is idling or after it has been turned off.
This is normal.
Heating
The heater works best if you keep the windows closed.
Maximum heating will occur when airflow direction is
in the lower mode and the temperature control knob
(on a manual climate control system) is all the way in
the red area. These settings will be selected by the
automatic electronic dual climate control system if
operating in AUTO when maximum heating is required.
The bi
-level setting is designed for use on sunny days
when the air is only moderately warm or cool. On days
like these, the sun may adequately warm your upper
body, but your lower body may not be warm enough.
The bi
-level setting will direct cooler airflow to your
upper body and warmer air to the floor area.
If you have the optional engine coolant heater and use it
during cold weather 0
F (
-18
C) or lower, the heating
system will provide heat more quickly because the
coolant is already warmed. See ªEngine Coolant Heaterº
in the Index.

6-74
Minifuse Usage
9 Headlamp High
-Beam Right
10 Headlamp Low
-Beam Left
11 Horn
12 Headlamp High
-Beam Left
13 Fuel Pump
14 Cooling Fan
- Ignition 3
15 Oxygen Sensor
16 Powertrain Control Module
17 Throttle Control
18 Injector 2
19 Engine Ignition
20 Blank
21 Blank
22 Injector 1
23 Powertrain Control Module
24 Air Conditioning
25 Blank
26 Blank
27 Spare Minifuse Usage
28 Spare
29 Spare
30 Spare
31 Spare
32 Spare
Micro Relay Usage
33 Air Pump
34 Air Conditioner and Clutch
35 Fuel Pump
36 Horn
37 Rear Fog Lamp
38 Back
-Up Lamps
39 Fog Lamp
40 Blank
41 Selective Real Time Damping
Mini Relay Usage
42 Ignition 1
43 Cooling Fan 2
44 Cooling Fan 3
45 Cooling Fan 1