light CHEVROLET CORVETTE 2002 5.G Service Manual

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NOTICE:
If you keep driving your vehicle with this light
on, after a while, your emission controls may not
work as well, your fuel economy may not be as
good and your engine may not run as smoothly.
This could lead to costly repairs that may not be
covered by your warranty.
NOTICE:
Modifications made to the engine, transmission,
exhaust, intake or fuel system of your vehicle or
the replacement of the original tires with other
than those of the same Tire Performance Criteria
(TPC) can affect your vehicle's emission controls
and may cause the CHECK ENGINE light to
come on. Modifications to these systems could
lead to costly repairs not covered by your
warranty. This may also result in a failure to pass
a required Emission Inspection/Maintenance test.
This light should come on, as a check to show you it is
working, when the ignition is on and the engine is not
running. If the light doesn't come on, have it repaired.
This light will also come on during a malfunction in one
of two ways:

Light Flashing
-- A misfire condition has been
detected. A misfire increases vehicle emissions and
may damage the emission control system on your
vehicle. Dealer or qualified service center diagnosis
and service may be required.

Light On Steady
-- An emission control system
malfunction has been detected on your vehicle.
Dealer or qualified service center diagnosis and
service may be required.

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If the Light Is Flashing
The following may prevent more serious damage to
your vehicle:

Reducing vehicle speed.

Avoiding hard accelerations.

Avoiding steep uphill grades.
If the light stops flashing and remains on steady,
see ªIf the Light Is On Steadyº following.
If the light continues to flash, when it is safe to do so,
stop the vehicle. Find a safe place to park your vehicle.
Turn the key off, wait at least 10 seconds and restart the
engine. If the light remains on steady, see ªIf the Light
Is On Steadyº following. If the light is still flashing,
follow the previous steps, and drive the vehicle to your
dealer or qualified service center for service.If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully
install the cap. See ªFilling Your Tankº in the Index.
The diagnostic system can determine if the fuel cap
has been left off or improperly installed. A loose or
missing fuel cap will allow fuel to evaporate into the
atmosphere. A few driving trips with the cap properly
installed should turn the light off.
Did you just drive through a deep puddle of water?
If so, your electrical system may be wet. The condition
will usually be corrected when the electrical system
dries out. A few driving trips should turn the light off.

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Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel.
See ªFuelº in the Index. Poor fuel quality will
cause your engine not to run as efficiently as designed.
You may notice this as stalling after start
-up,
stalling when you put the vehicle into gear, misfiring,
hesitation on acceleration or stumbling on acceleration.
(These conditions may go away once the engine is
warmed up.) This will be detected by the system and
cause the light to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It will require at least
one full tank of the proper fuel to turn the light off.
If none of the above steps have made the light turn off,
have your dealer or qualified service center check the
vehicle. Your dealer has the proper test equipment and
diagnostic tools to fix any mechanical or electrical
problems that may have developed.Emissions Inspection and Maintenance Programs
Some state/provincial and local governments have or may
begin programs to inspect the emission control equipment
on your vehicle. Failure to pass this inspection could
prevent you from getting a vehicle registration.
Here are some things you need to know in order to help
your vehicle pass an inspection:
Your vehicle will not pass this inspection if the
CHECK ENGINE light is on or not working properly.
Your vehicle will not pass this inspection if the
OBD (on
-board diagnostic) system determines
that critical emission control systems have not been
completely diagnosed by the system. The vehicle would
be considered not ready for inspection. This can happen
if you have recently replaced your battery or if your
battery has run down. The diagnostic system is designed
to evaluate critical emission control systems during
normal driving. This may take several days of routine
driving. If you have done this and your vehicle still
does not pass the inspection for lack of OBD system
readiness, see your dealer or qualified service center to
prepare the vehicle for inspection.

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Security Light
This light comes on to
remind you to arm your
theft
-deterrent system. If it
comes on and stays on when
your ignition is on, there
may be a problem with your
theft
-deterrent system.
See ªTheft
-Deterrent Systemº and ªPASS-Key Systemº
in the Index.
Check Gages Warning Light
This light will come on
briefly when you are
starting the engine. If the
light comes on and stays on
while you are driving, check
your gages to see if they are
in the warning areas.
This light can come on for the following reasons:

Low Oil Pressure

High Coolant Temperature

High or Low Battery Voltage

Low Fuel Level
Fuel Gage
Your fuel gage tells you
about how much fuel
you have left when the
ignition is on.
When the needle approaches the red zone, RESERVE
FUEL will appear on the Driver Information Center
(DIC) display. When the needle approaches the E, LOW
FUEL will appear on the display. At this time, you still
have a little fuel left, but you should get more soon.
Press RESET to acknowledge a DIC message(s).
Pressing RESET will also turn off a DIC message
but the LOW FUEL message will come on again in
10 minutes if you have not added fuel to the vehicle.

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Here are five things that some owners ask about.
All these things are normal and do not indicate that
anything is wrong with the fuel gage.

At the gas station, the gas pump shuts off before
the gage reads F (full).

It takes more (or less) fuel to fill up than the gage
reads. For example, the gage reads half full, but it
took more (or less) than half of the tank's capacity
to fit it.

The gage pointer may move while cornering,
braking or speeding up.

The gage may not indicate E (empty) when the
ignition is turned off.

The gage reading may change slightly within the
first several minutes after starting the vehicle.You can use the Driver Information Center (DIC) to
display more detailed fuel information. Each time you
press FUEL, one of the following will appear in the
Driver Information Center (DIC).

AVERAGE: The fuel economy calculated for
the current tank of fuel, or since you last reset
the display.

INST (Instant): The fuel economy calculated
for your current driving conditions.

RANGE: The distance you can drive
before refueling.

BLANK: The fuel gage is displayed alone.
You should reset the fuel information display every
time you refuel. To reset the display, press FUEL
until AVERAGE appears. Then, press RESET on the
Driver Information Center (DIC).

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Driver Information Center (DIC)
The Driver Information Center (DIC) will display
information about how your vehicle is functioning,
as well as warning messages if a system problem is
detected. The DIC display area is located in the
instrument panel cluster below the speedometer and
tachometer, directly above the steering column.
The following buttons are located on the DIC control
panel which is located to the right of the instrument
panel cluster.
1 FUEL: Press this button to display fuel information
such as fuel economy and range.
2 GAGES: Use this button to display gage information
like oil pressure and temperature, coolant temperature,
automatic transmission fluid temperature, battery
voltage and front/rear tire pressures.
3 TRIP: Use this button to display your total and trip
miles, the elapsed time function, your average speed and
the engine oil life.
4 OPTIONS: This button allows you to choose personal
options that are available on your vehicle, depending on
the options your vehicle is equipped with, such as
security, door locks, easy entry seats and language.
5 E/M (English/Metric): Use this button to change
the display between English and metric units.
RESET: This button, used along with the other buttons,
will reset system functions and turn off or acknowledge
messages on the Driver Information Center (DIC).
At the top of the DIC control buttons is a light sensor.
Be sure not to block the sensor or your lighting
functions may be disrupted.

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4 OPTIONS
This button allows you to choose personal options that
may be available on your vehicle, depending on the options
your vehicle is equipped with. Some of these functions
work along with the remote keyless entry transmitter.
When returning to the options menu, the first item of the
options list will always be displayed, not the one you
were last in when you changed buttons.
The following are the options listed under the
OPTIONS button:
Twilight (Optional in United States,
Standard in Canada)
Press the OPTIONS button until TWILIGHT
- OFF
appears on the display, then use the RESET button to
page through the following selections:

TWILIGHT
- ON

TWILIGHT
- OFF
If you choose TWILIGHT
- ON, press the OPTIONS
button again to display DELAY TIME 1 2 in the DIC.
Use the OPTIONS button to switch between delay time
1 and 2. You can increase the delay time by pressing
button 1 (1 FUEL) or decrease the time by pressing
button 2 (2 GAGES). Each bar is equal to 12 seconds.
Lock and Arm
Press the OPTIONS button until LOCK & ARM
appears on the display, then use the RESET button to
page through the following selections:

LOCK & ARM
- OFF

LOCK & ARM
- HORN ONLY

LOCK & ARM
- LIGHTS ONLY

LOCK & ARM
- HORN & LIGHTS

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If you choose LOCK & ARM - OFF, you will
receive no security feedback when locking or
unlocking your vehicle.
If you choose LOCK & ARM
- HORN ONLY,
only the horn will chirp to let you know when your
alarm system has armed when locking your vehicle.
If you choose LOCK & ARM
- LIGHTS ONLY,
only your exterior lamps will flash to let you know
when your alarm system has armed when locking
your vehicle.
If you choose LOCK & ARM
- HORN & LIGHTS,
the horn will chirp and the exterior lamps will flash
briefly to let you know the system has armed when
locking your vehicle.
Alarm
Press the OPTIONS button until ALARM appears on
the display, then use the RESET button to page through
the following selections:

ALARM
-HORN

ALARM HORN & LIGHTSIf you choose ALARM
-HORN, the horn will sound
during an alarm.
If you choose ALARM HORN & LIGHTS, the horn
will sound and the interior and exterior lamps will flash
during an alarm.
Approach Lights
Press the OPTIONS button until APPROACH LIGHTS
appears on the display, then use the RESET button to
page through the following choices:

APPROACH LIGHTS ON

APPROACH LIGHTS OFF
If you choose APPROACH LIGHTS ON, the fog lamps,
front turn signal, rear back
-up and courtesy lamps will
come on for 30 seconds when you press UNLOCK on
the remote keyless entry transmitter. This will occur
only when it is dark outside.
APPROACH LIGHTS OFF turns off this option.
See ªRemote Keyless Entry (RKE) Systemº in the
Index for more information.

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DIC Warnings and Messages
The following messages and warnings may appear in
the DIC display. The DIC display area is located in the
instrument panel cluster below the speedometer and
tachometer, directly above the steering column. You may
receive more than one message at a time. Messages will
appear one behind the other. To acknowledge a message
and remove it from the display, press RESET. You may
scroll through the messages that may have been sent at
the same time. The message center is continuously
updated with the vehicle performance status.
ABS ACTIVE (Anti
-Lock Brake System Active):
When your anti
-lock system is adjusting brake pressure
to help avoid a braking skid, the ABS ACTIVE message
will be displayed.
Slippery road conditions may exist if this message
is displayed, so adjust your driving accordingly.
The message will stay on for a few seconds after the
system stops adjusting brake pressure.ACT HNDLG
- WARMING UP: When you first
start your vehicle (especially during cold winter weather),
and begin to drive away (up to 6 mph (10 km/h)), the
message ACT HNDLG
- WARMING UP may be
displayed in the DIC, the instrument panel cluster light
will be on, and a chime will sound. This is normal.
You can acknowledge this message by pressing the
RESET button. The Active Handling System
performance is affected until the next message
WARM UP COMPLETE is displayed in the DIC.
During hot or cold temperature conditions, this message
may be displayed in the DIC after exceeding 12 mph
(20 kph) for 30 seconds. The Active Handling System
is off until the WARM UP COMPLETE message
is displayed.
WARM UP COMPLETE: If you receive this message
and hear a chime, the system has completed the
functional check of the Active Handling System.

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TRAC/ACT HNDLG - ON: If the Traction Control
and Active Handling Systems are off, depressing the
Active Handling System console button momentarily
will turn both systems on. The message TRAC/ACT
HNDLG
- ON will be displayed temporarily in the DIC,
the instrument panel cluster light will be off and a chime
will sound.
TRAC/ACT HNDLG
- OFF: By pressing the Active
Handling System console button briefly, the driver can
turn the Traction Control and Active Handling Systems
off. The message TRAC/ACT HNDLG
- OFF will
be displayed in the DIC, the instrument panel cluster
light will be on and a chime will sound. You can
acknowledge this message by pressing the RESET
button. The anti
-lock brake systems remains on with
the Traction Control and Active Handling Systems off.
You should adjust your driving accordingly.
COMPETITIVE DRIVING: When the Competitive
Driving mode is selected, this message will be displayed
in the DIC. The instrument panel cluster light will not
be on when the Competitive Driving mode is selected.
The Traction Control System will not be operating while
in the Competitive Driving mode. You should adjust
your driving accordingly.SERVICE ABS (Anti
-Lock Brake System): If the
SERVICE ABS message is displayed when you are
driving, stop as soon as possible and turn the ignition
off. Then start the engine again to reset the system.
If the message stays on, or comes back on again while
you are driving, your vehicle is in need of service. If the
regular brake system warning light isn't on, you still
have brakes, but don't have anti
-lock brakes. If the
regular brake system light is also on, you don't have
anti
-lock brakes and there is a problem with your
brakes. See ªBrake System Warning Lightº earlier
in this section.
If the SERVICE ABS message is being displayed, your
traction control system and the optional active handling
system will also be disabled. The driver information
center will scroll three messages: SERVICE ABS,
SERVICE TRACTION SYS and SERVICE ACTIVE
HNDLG, and the instrument cluster car icon will be
illuminated. The driver can acknowledge these messages
by pressing the reset button three times. When the
service message is displayed the computer controlled
systems will not assist the driver and you should have
the system repaired as soon as possible. Adjust your
driving accordingly.