ECU CHEVROLET AVEO 2002 Service Manual PDF

{CAUTION:
Anyone who is up against, or very close to,
any airbag when it inates can be seriously
injured or killed. Airbags plus lap-shoulder
belts offer the best protection for adults, but
not for young children and infants. Neither the
vehicle’s safety belt system nor its airbag
system is designed for them. Young children
and infants need the protection that a child
restraint system can provide. Always secure
children properly in your vehicle. To read how,
seeOlder Children on page 1-30orInfants and
Young Children on page 1-32.There is an airbag
readiness light on the
instrument panel cluster,
which shows the airbag
symbol.
The system checks the airbag electrical system for
malfunctions. The light tells you if there is an electrical
problem. SeeAirbag Readiness Light on page 3-32
for more information.
1-58

The passenger sensing system works with a sensor
that is part of the right front passenger’s seat cushion.
The sensor is designed to detect the presence of a
properly-seated occupant and determine if the
passenger’s frontal airbag and side impact airbag
(if equipped) should be enabled (may inflate) or not.
Accident statistics show that children are safer if
they are restrained in the rear, rather than the front
seat. General Motors recommends that child restraints
be secured in a rear seat, including an infant riding
in a rear-facing infant seat, a child riding in a
forward-facing child seat, and an older child riding in a
booster seat.
Your vehicle has a rear seat that will accommodate a
rear-facing child restraint. A label on your sun visor says,
“Never put a rear-facing child seat in the front.” This
is because the risk to the rear-facing child is so great,
if the airbag deploys.
{CAUTION:
A child in a rear-facing child restraint can be
seriously injured or killed if the right front
passenger’s airbag inates. This is because
the back of the rear-facing child restraint
would be very close to the inating airbag.
Even though the passenger sensing system is
designed to turn off the passenger’s frontal
airbag and side airbag (if equipped) if the
system detects a rear-facing child restraint, no
system is fail-safe, and no one can guarantee
that an airbag will not deploy under some
unusual circumstance, even though it is turned
off. General Motors recommends that
rear-facing child restraints be secured in the
rear seat, even if the airbag or airbags are off.
If you need to secure a forward-facing child
restraint in the right front seat, always move
the front passenger seat as far back as it will
go. It is better to secure the child restraint in a
rear seat.
1-66

The passenger sensing system is designed to turn off
the right front passenger’s frontal airbag and side airbag
(if equipped) if:
•the right front passenger seat is unoccupied
•the system determines that an infant is present in a
rear-facing infant seat
•the system determines that a small child is present
in a forward-facing child restraint
•the system determines that a small child is present
in a booster seat
•a right front passenger takes his/her weight off of
the seat for a period of time
•the right front passenger seat is occupied by a
smaller person, such as a child who has outgrown
child restraints
•or if there is a critical problem with the airbag
system or the passenger sensing system.
When the passenger sensing system has turned off the
passenger’s frontal airbag and side airbag (if equipped),
the off symbol near the clock will light and stay lit to
remind you that the airbag or airbags are off. See
Passenger Airbag Status Indicator on page 3-26.If a child restraint has been installed and the off symbol
is not lit, turn the vehicle off. Remove the child
restraint from the vehicle and reinstall the child restraint
following the child restraint manufacturer’s directions
and refer toSecuring a Child Restraint in the Right Front
Seat Position on page 1-51.
If after reinstalling the child restraint and restarting the
vehicle, the off symbol is still not lit, check to make sure
that the vehicle’s seatback is not pressing the child
restraint into the seat cushion. If this happens, slightly
recline the vehicle’s seatback and adjust the seat
cushion if possible. Also make sure the child restraint is
not trapped under the vehicle head restraint. If this
happens, adjust the head restraint.
If the off symbol is still not lit, secure the child in the
child restraint in a rear seat position in the vehicle and
check with your dealer.
The passenger sensing system is designed to enable
(may inflate) the right front passenger’s frontal
airbag and side airbag (if equipped) anytime the system
senses that a person of adult size is sitting properly
in the right front passenger’s seat. When the passenger
sensing system has allowed the airbag or airbags to
be enabled, the off symbol will not light.
1-67

{CAUTION:
If the airbag readiness light in the instrument
panel cluster ever comes on and stays on, it
means that something may be wrong with the
airbag system. If this ever happens, have the
vehicle serviced promptly, because an
adult-size person sitting in the right front
passenger’s seat may not have the protection
of the frontal airbag and side airbag (if
equipped). SeeAirbag Readiness Light on
page 3-32for more on this, including important
safety information.
A thick layer of additional material such as a blanket,
or aftermarket equipment such as seat covers, seat
heaters and seat massagers can affect how well
the passenger sensing system operates. Remove any
additional material from the seat cushion before
reinstalling or securing the child restraint or small
occupant. You may want to consider not using seat
covers or other aftermarket equipment if your vehicle
has the passenger sensing system. SeeAdding
Equipment to Your Airbag-Equipped Vehicle on
page 1-70for more information about modifications
that can affect how the system operates.
Servicing Your Airbag-Equipped
Vehicle
Airbags affect how your vehicle should be serviced.
There are parts of the airbag system in several places
around your vehicle. You do not want the system to
inflate while someone is working on your vehicle.
Your dealer and the service manual have information
about servicing your vehicle and the airbag system.
To purchase a service manual, seeService Publications
Ordering Information on page 7-15.
{CAUTION:
For up to 10 seconds after the ignition key is
turned off and the battery is disconnected, an
airbag can still inate during improper service.
You can be injured if you are close to an
airbag when it inates. Avoid yellow
connectors. They are probably part of the
airbag system. Be sure to follow proper
service procedures, and make sure the person
performing work for you is qualied to do so.
The airbag system does not need regular maintenance.
1-69

Adding Equipment to Your
Airbag-Equipped Vehicle
Q:Is there anything I might add to the front or
sides of the vehicle that could keep the
airbags from working properly?
A:Yes. If you add things that change your vehicle’s
frame, bumper system, height, front end or side
sheet metal, they may keep the airbag system from
working properly. Also, the airbag system may
not work properly if you relocate any of the airbag
sensors. If you have any questions about this,
you should contact Customer Assistance before you
modify your vehicle. The phone numbers and
addresses for Customer Assistance are in Step Two
of the Customer Satisfaction Procedure in this
manual. SeeCustomer Satisfaction Procedure on
page 7-2.
Q:Because I have a disability, I have to get my
vehicle modied. How can I nd out whether
this will affect my airbag system?
A:Changing or moving any parts of the front seats,
safety belts, the airbag sensing and diagnostic
module, steering wheel, the instrument panel, or
airbag wiring can affect the operation of the airbag
system. If you have questions, call Customer
Assistance. The phone numbers and addresses for
Customer Assistance are in Step Two of the
Customer Satisfaction Procedure in this manual.
SeeCustomer Satisfaction Procedure on page 7-2.
1-70

Keys...............................................................2-2
Remote Keyless Entry System.........................2-4
Remote Keyless Entry System Operation...........2-5
Doors and Locks.............................................2-7
Door Locks....................................................2-7
Central Door Unlocking System........................2-7
Door Ajar Reminder........................................2-8
Rear Door Security Locks................................2-8
Lockout Protection..........................................2-9
Trunk (Sedan)................................................2-9
Liftgate (Hatchback)......................................2-11
Windows........................................................2-12
Manual Windows..........................................2-12
Power Windows............................................2-13
Sun Visors...................................................2-13
Theft-Deterrent Systems..................................2-14
Theft-Deterrent System..................................2-14
Immobilizer..................................................2-16
Immobilizer Operation....................................2-16
Starting and Operating Your Vehicle................2-17
New Vehicle Break-In....................................2-17
Ignition Positions..........................................2-18
Starting the Engine.......................................2-19Engine Coolant Heater..................................2-20
Automatic Transaxle Operation.......................2-21
Manual Transaxle Operation...........................2-25
Parking Brake..............................................2-26
Shifting Into Park (P)
(Automatic Transaxle)................................2-27
Shifting Out of Park (P)
(Automatic Transaxle)................................2-28
Parking Your Vehicle (Manual Transaxle).........2-29
Parking Over Things That Burn.......................2-30
Engine Exhaust............................................2-30
Running the Engine While Parked...................2-31
Mirrors...........................................................2-32
Manual Rearview Mirror.................................2-32
Outside Manual Mirrors..................................2-32
Outside Power Mirror....................................2-33
Outside Convex Mirror...................................2-33
Outside Heated Mirrors..................................2-33
Storage Areas................................................2-34
Glove Box...................................................2-34
Cupholder(s)................................................2-34
Sunglasses Storage Compartment...................2-35
Sunroof.........................................................2-35
Section 2 Features and Controls
2-1

One key is used for the
ignition, the doors and all
other locks.
When a new vehicle is delivered, the dealer removes the
key tag and gives it to the first owner. The tag has a code
on it that tells your dealer how to make extra keys. For
vehicle security, keep the key tag in a safe place and also
record the key number somewhere other than inside of
the vehicle. If you lose your key, you will be able to have
a new one made easily using the tag.Your vehicle may have an electronic immobilizer
designed to protect your car against theft. If so, only
keys with the correct electronic code can be used
to start the vehicle. SeeImmobilizer Operation on
page 2-16for additional information. Even if a key has
the same profile, it will not start the engine if the
electronic code is incorrect. If you need a new key,
contact your dealer who can obtain the correct key code.
Also seeRoadside Assistance Program on page 7-6.
Notice:If you ever lock your keys in your vehicle,
you may have to damage the vehicle to get in.
Be sure you have spare keys.
2-3

Door Ajar Reminder
If one of the doors on your
vehicle is not closed
properly while the ignition
is on, the door ajar
light on the secondary
information center
will come on and stay on
until the doors are closed.
Rear Door Security Locks
Your vehicle has rear door
security locks on each rear
door that help prevent
passengers from opening
the rear doors on your
vehicle from the inside.
Using the Rear Door Security Lock
1. Move the lever upward to lock.
2. Close the door.
3. Do the same thing to the other rear door lock.
Notice:Pulling the inside door handle while the
rear door security locks are engaged could damage
your vehicle. Do not pull the inside door handle
while the rear door security locks are engaged.
The rear doors on your vehicle cannot be opened from
the inside while this feature is in use.
Opening a Rear Door When the
Security Lock is On
1. Unlock the door from the inside.
2. Open the door from the outside.
If you do not cancel the security lock, adults or older
children who ride in the rear will not be able to open the
rear door from the inside. You should let adults and
older children know how to cancel the locks.
Canceling the Rear Door Security Lock
1. Unlock the door from the inside and open the
door from the outside.
2. Move the lever downward to unlock.
3. Do the same for the other rear door.
The rear door locks will now work normally.
2-8

Remote Trunk Release
Open the trunk from inside
your vehicle by pulling up
the release lever located
to the left side of the
driver’s seat.
When closing the trunk, close from the center to ensure
it fully latches.
Emergency Trunk Release Handle
Notice:Do not use the emergency trunk release
handle as a tie-down or anchor point when securing
items in the trunk as it could damage the handle.
The emergency trunk release handle is only
intended to aid a person trapped in a latched trunk,
enabling them to open the trunk from the inside.
There is a glow-in-the-dark emergency trunk release
handle located on the underside of the trunk lid.
This handle will glow following exposure to light. Pull the
release handle down to open the trunk from the inside.
2-10

Theft-Deterrent Systems
Vehicle theft is big business, especially in some cities.
Although your vehicle has a number of theft-deterrent
features, we know that nothing we put on it can make
it impossible to steal.
Theft-Deterrent System
Your vehicle may have a theft-deterrent system.
The theft-deterrent system will not arm when you lock
the doors using the key or the manual door lock. It arms
only when you use the remote keyless entry transmitter.
Arming the System
To arm the system, do the following:
1. Close the doors, the windows, the hood, and the
trunk or liftgate.
Ensure that the windows are closed, as the system
can be armed even if the windows are open.
2. Turn the key to LOCK and remove the key from the
ignition.
If the key is inserted in the ignition, the transmitter
will not arm the theft-deterrent system.3. Lock the doors by pressing the lock button on the
remote keyless entry transmitter.
•The LED light on the transmitter will flash once.
•All of the doors will lock.
•The hazard warning lamps will flash once and
the horn will chirp.
•The security light (A) will flash once every
second to indicate that the theft-deterrent system
is armed. The security light is located on the
secondary information center (SIC) on the center
of the instrument panel.
2-14