1999 CHEVROLET CAVALIER ECU

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To Open a Rear Door With the Security Lock
1. Unlock the door from the inside.
2. Then open the door from the outside.
If you don't cancel the security lock feature, adults or
older children who ride in the rear won't be able to open
the rear door from the inside. You should let adults and
older children know how to cancel the locks.
To Cancel the Rear Door Lock
1. Unlock the door from the inside and open the door
from the outside.
2. Use a key to move the lock all the way down.
3. Do the same for the other rear door.
The rear door lock will now work normally.
Leaving Your Vehicle
If you are leaving the vehicle, open your door and
set the locks from the inside. Then get out and close
the door.
Remote Keyless Entry (If Equipped)
If your vehicle has this option, you can lock and unlock
your doors or unlock your trunk from about 3 feet (1 m)
up to 30 feet (9 m) away using the remote keyless entry
transmitter supplied with your vehicle.
In addition, the system illuminates the interior lamps for
a set period of time.
The remote keyless entry
system consists of a
receiver, which is located in
the vehicle, and two hand
held transmitters.
Your keyless entry system operates on a radio frequency
subject to Federal Communications Commission (FCC)
Rules and with Industry Canada.

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3. Read the instructions inside the case.
4. Put the two halves back together. Make sure the
cover is on tightly, so water won't get in.
5. Check the operation of the transmitter with your
vehicle. If the transmitter does not work, try
resynchronizing the transmitter with the receiver.
Resynchronization
Your remote keyless entry system is equipped with a
security system that prevents anyone from recording and
playing back your signal. The transmitter does not send
the same signal twice to the receiver. The receiver will
not respond to a signal that has been sent to it more
than once.
To resynchronize your transmitter and receiver, follow
these directions:
1. Stand close to your vehicle.
2. Press and hold the LOCK and UNLOCK buttons on
the transmitter at the same time.
3. Hold the buttons for at least five seconds. During
this time, the doors should lock and unlock once.
This confirms the resynchronization. If the doors do
not lock and unlock, see your dealer for service.
Trunk
CAUTION:
It can be dangerous to drive with the trunk lid
open because carbon monoxide (CO) gas can
come into your vehicle. You can't see or smell
CO. It can cause unconsciousness and even death.
If you must drive with the trunk lid open or if
electrical wiring or other cable connections must
pass through the seal between the body and the
trunk lid:

Make sure all other windows are shut.

Turn the fan on your heating or cooling
system to its highest speed with the setting
on any airflow selection except MAX. That
will force outside air into your vehicle. See
ªComfort Controlsº in the Index.

If you have air outlets on or under the
instrument panel, open them all the way.
See ªEngine Exhaustº in the Index.

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CAUTION:
A convex mirror can make things (like other
vehicles) look farther away than they really are.
If you cut too sharply into the right lane, you
could hit a vehicle on your right. Check your
inside mirror or glance over your shoulder before
changing lanes.
Storage Compartments
Center Console Storage Area
To open the center console, pull the lift lever up and the
lid back.
To close the center console, push the lid down until
it clicks.
Center Console Cupholders
Open the center console lid all the way to uncover the
front and rear cupholders. There is also a cupholder at
the front of the console.
Convenience Net (If Equipped)
Your vehicle may have a convenience net. You'll see it
just inside the back wall of the trunk. Put small loads,
like grocery bags, behind the net. It can help keep them
from falling over during sharp turns or quick starts and
stops. Unclip a corner of the convenience net to fit
larger objects behind the net, then re
-clip it to secure
them in place.
The net isn't for larger, heavier loads. Store them in the
trunk as far forward as you can.
You can unhook the net so that it will lie flat when
you're not using it.
Ashtrays and Cigarette Lighter
(If Equipped)
To use the lighter, just push it in all the way and let go.
When it's ready, it will pop back out by itself.

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Sunroof (If Equipped)
Press and release the rear of
the switch and the glass
panel will open to the
vent position.
Open the sunshade by hand when using the
vent position.
Press and release the rear of the switch again to open the
glass panel and the sunshade. Press the front of the
switch to stop the panel in any position.
Press and hold the front of the switch to close the glass
panel. The sunshade can only be closed by hand.
The sunroof glass panel cannot be opened or closed if
your vehicle has an electrical failure.
Convertible Top (If Equipped)
The following steps explain the proper operation of your
convertible top.
NOTICE:

Remove any items from the convertible top
storage area before you lower the top. Even
small items in the storage area can damage
the top or other parts of the system.

Don't raise or lower the convertible
top when the temperature is below
20F (
-7C). The cold can cause cracks
and other damage to the top as it is being
lowered or raised.

Don't raise or lower the convertible top
while the vehicle is moving. The wind could
damage the top. Bring the vehicle to a
complete stop before attempting to raise or
lower the top. Always make sure that the
top is securely latched before driving
the vehicle.

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6. Turn the latch handle up to lock the top. Be sure the
top is securely latched on both sides.
Lowering the Top Manually
NOTICE:
Do not attempt to lower the top manually as
damage to the vehicle will occur. If the top fails to
raise or lower completely, see ªRaising the Top
Manuallyº following.
Raising the Top Manually
If your vehicle loses power, or something else happens
that prevents you from raising the top electrically, you
may need to raise the top manually. This will allow you
to safely drive the vehicle until you can get the top
repaired. Raising the convertible top manually should
only be done in an emergency and requires two people.
Before you do these steps, check to make sure that the
bypass switch in the trunk is switched up to the
NORMAL OPERATION position. If it is not, switch it
to the NORMAL OPERATION position and see if the
power top works.

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8. Raise the top until it is all the way up. Line up the
top so the pins are even with the holes.9. Pull down on the top and rotate the latch handle up
to lock the convertible top. Be sure the top is
latched securely on both sides.
10. Press the bypass switch up to the NORMAL
OPERATION position.
11. Close the trunk.

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When THEFTLOCK is activated, the radio will display
LOC to indicate a locked condition anytime battery
power has been interrupted. If your battery loses power
for any reason, you must unlock the radio with the secret
code before it will operate.
Activating the Theft
-Deterrent Feature
The instructions which follow explain how to enter your
secret code to activate the THEFTLOCK system. It is
recommended that you read through all nine steps
before starting the procedure.
NOTE: If you allow more than 15 seconds to elapse
between any steps, the radio automatically reverts to
time and you must start the procedure over at Step 4.
1. Write down any three or four
-digit number from
000 to 1999 and keep it in a safe place separate from
the vehicle.
2. Turn the ignition to ACCESSORY or RUN.
3. Turn the radio off.
4. Press the 1 and 4 buttons together. Hold them down
until
--- shows on the display. Next you will use the
secret code number which you have written down.
5. Press MN and 000 will appear on the display.6. Press MN again to make the last two digits agree
with your code.
7. Press HR to make the first one or two digits agree
with your code.
8. Press AM
-FM after you have confirmed that the
code matches the secret code you have written down.
The display will show REP to let you know that you
need to repeat Steps 5 through 7 to confirm your
secret code.
9. Press AM
-FM and this time the display will show
SEC to let you know that your radio is secure. The
LED indicator by the volume control will begin
flashing when the ignition is turned off.
Unlocking the Theft
-Deterrent Feature After a
Power Loss
Enter your secret code as follows; pause no more than
15 seconds between steps:
1. Turn the ignition on. LOC will appear on the display.
2. Press MN and 000 will appear on the display.
3. Press MN again to make the last two digits agree
with your code.

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4. Press HR to make the first one or two digits agree
with your code.
5. Press AM
-FM after you have confirmed that the
code matches the secret code you have written down.
The display will show SEC, indicating the radio is
now operable and secure.
If you enter the wrong code eight times, INOP will
appear on the display. You will have to wait an hour
with the ignition on before you can try again. When you
try again, you will only have three chances to enter the
correct code before INOP appears.
If you lose or forget your code, contact your dealer.
Disabling the Theft
-Deterrent Feature
Enter your secret code as follows; pause no more than
15 seconds between steps:
1. Turn the ignition to ACCESSORY or RUN.
2. Turn the radio off.
3. Press the 1 and 4 buttons together. Hold them down
until SEC shows on the display.
4. Press MN and 000 will appear on the display.
5. Press MN again to make the last two digits agree
with your code.6. Press HR to make the first one or two digits agree
with your code.
7. Press AM
-FM after you have confirmed that the
code matches the secret code you have written down.
The display will show
---, indicating that the radio is
no longer secured.
If the code entered is incorrect, SEC will appear on the
display. The radio will remain secured until the correct
code is entered.
When battery power is removed and later applied to a
secured radio, the radio won't turn on and LOC will
appear on the display.
To unlock a secured radio, see ªUnlocking the
Theft
-Deterrent Feature After a Power Lossº earlier in
this section.
Understanding Radio Reception
AM
The range for most AM stations is greater than for FM,
especially at night. The longer range, however, can
cause stations to interfere with each other. AM can pick
up noise from things like storms and power lines. Try
reducing the treble to reduce this noise if you ever get it.