2006 TOYOTA AVALON ECU

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Important information about your Toyota
Occupant restraint systems
Toyota encourages you and your family to take the time to
read Section 1−3 of this Owner’s Manual carefully. In
terms of helping you understand how you can receive the
maximum benefit of the occupant restraint systems this
vehicle provides, Section 1 −3 of this Owner ’s Manual is
the most important Section for you and your family to
read.
Section 1 −3 describes the function and operation concern-
ing seats, seat belts, SRS airbags and child restraint sys-
tems of this vehicle and some potential hazards you
should be aware of. These systems work together along
with the overall structure of this vehicle in order to provide
occupant restraint in the event of a crash. The effect of
each system is enhanced when it is used properly and
together with other systems. No single occupant restraint
system can, by itself, provide you or your family with the
equal level of restraint which these systems can provide
when used together. That is why it is important for you and
your family to understand the purpose and proper use of
each of these systems and how they relate to each other.
The purpose of all occupant restraint systems is to help
reduce the possibility of death or serious injury in the
event of a collision. None of these systems, either individ-
ually or together, can ensure that there is no injury in the
event of collision. However, the more you know about
these systems and how to use them properly, the greater
your chances become of surviving an accident without
death or serious injury.
Seat belts provide the primary restraint to all occupants of
the vehicle, and every occupant of the vehicle should wear
seat belts properly at all times. Children should always be
secured in child restraint systems that are appropriate for
their age and size. SRS (Supplemental Restraint System)
airbags are, as their names imply, designed to work with,
and be supplemental to, seat belts and are not substitutes
for them. SRS airbags can be very effective in reducing
the risk of head, chest and knee injuries by preventing
contact of the head, chest and knee with interior portions
of the vehicle.

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SRS airbag system diagnostic data
If your vehicle is equipped with a vehicle stability control
(VSC) system, its Electronic Control Unit (ECU) may con-
tain another EDR. There are a variety of driving situations
which include activating the VSC under which the VSC
EDR will record certain information. The VSC EDR may
record some or all of the following information:
 Behavior of the vehicle
 Steering wheel angle
 Vehicle speed
 To what extent the accelerator pedal was depressed
 To what extent the brake pedal was applied
 To what extent the ECU controlled the condition of
the 4 wheels
 Vehicle stability control system di agnostic data
The information above is intended to be used for the
purpose of improving vehicle safety performance. Unlike
general data recorders, the EDR does not record sound
data such as conversation between passengers.Toyota will not disclose the data recorded in an EDR to a
third party except when:
 An agreement from the vehicle’s owner (or the leas-
ing company for a leased vehicle) is obtained
 Officially requested by the police or other authorities
 Used as a defense for Toyota in a law suit
 Ordered by the court
However, if necessary Toyota will:
 Use the data for research on Toyota vehicle safety
performance
 Disclose the data to a third party for research pur-
poses without disclosing details of the vehicle owner,
and only when it is deemed necessary
 Disclose summarized data cleared of vehicle identifi-
cation information to a non −Toyota organization for
research purposes

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KEY NUMBER PLATE
Your key number is shown on the plate.
Keep the plate in a safe place such as
your wallet, not in the vehicle.
If you should lose your keys or if you
need additional keys, duplicates can be
made by a Toyota dealer using the key
number.
We recommend writing down the key num-
ber and storing it in a safe place.The key consists of an electronic key
and a mechanical key. The mechanical
key is for emergency use. If the elec-
tronic key does not operate, you can
open the driver ’s door using the me-
chanical key.1. Electronic keys—These keys can lock or unlock all the doors and can open
the trunk by using the wireless remote
control function or entry function of the
smart key system.
2. Mechanical keys—These keys can lock or unlock the driver’s door, the glove
box and the door located behind the
rear seat armrest. Spare keys should not be left in the
cabin. In the event that a spare key is
left in the cabin, the smart key system
will remain actuated even after the
doors have been locked. Under these
circumstances, the trunk can be opened
even after the driver has exited and
locked the vehicle, increasing the dan-
ger of theft. (Refer to “OPENING
TRUNK WITH SMART KEY SYSTEM” on
page 44 in this Section.)
To protect items locked in the trunk or the
glove box when using valet parking, lock
the trunk opener switch and leave the
electronic key with the attendant. Keep the
mechanical key with you. For details about
locking the trunk opener switch, see
“—Luggage security system” on page 45
in this Section.
A transponder chip for engine immobilizer
system has been placed in the electronic
keys. These chips are needed to enable
the system to function correctly, so be
careful not to lose these keys.
Keys (with smart key system)

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Vehicles with key cylindertype ignition
switch
Vehicles with smart key system
1. Lock switch
2. Unlock switch
3. Alarm switch
4. Trunk opener switch
5. Indicator light (vehicles with smart keysystem only) The wireless remote control function is
designed to lock or unlock all the
doors, open the trunk lid, or activate
the alarm from a distance within
approximately 1 m (3 ft.) of the vehicle.
When you operate any switch, push it
slowly and securely.
Vehicles with smart key system only—
When the switch is operated, the indicator
light flashes once. If not, the battery may
be discharged. Replace the battery at the
earliest opportunity.
The wireless remote control transmitter is
an electronic component. Observe the fol-
lowing instructions in order not to cause
damage the key.
Do not leave the transmitter in places
where the temperature becomes high
such as on the dashboard.
Do not disassemble it.
Avoid knocking it hard against other
objects or dropping it.
Avoid putting it in water.
Wireless remote control—

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To lock or unlock all the doors, push
the switches slowly and securely.
To lock: Push the lock switch. All the
doors are locked simultaneously. At this
time one beep will sound and turn signal
lights flash once.
Vehicles with smart key system—For three
seconds after the doors have been locked,
the doors cannot be re−unlocked via the
smart key system.
Check to see that the doors are securely
locked.
If any of the doors is not securely closed,
or if the key is in the ignition switch (ve-
hicles with key cylinder −type ignition
switch) or key left in the vehicle (vehicles
with smart key system), locking cannot be
performed by the lock switch and a beep
will sound continuously for 10 seconds.
To stop the beep, take out the key from
the vehicle or push the unlock switch.
The beep can be disabled. For details,
contact your Toyota dealer.
On vehicles with key cylinder −type ignition
switch, see “—Switching beep sound” on
page 23 if you wish to change the set-
tings yourself. To unlock: Push the unlock switch once to
unlock the driver ’s door alone. Pushing
the switch twice within 3 seconds unlocks
all the doors simultaneously. Each time
the unlock switch is pushed, two beeps
will sound and turn signal lights flash
twice.
This double switch operation to unlock all
doors can be changed to a single switch
operation. For details, contact your Toyota
dealer.
If the key is in the ignition (vehicles with
key cylinder
−type ignition switch) or the
ignition switch is set to ACC or ON (ve-
hicles with smart key system), the vehicle
cannot be unlocked via the unlock switch.
When all the doors are unlocked simulta-
neously with a key, wireless remote con-
trol or entry function of the smart key
system, the following lights come on for
about 15 seconds and then fade out, even
if the door is not opened.
Vehicles with key cylinder −type ignition
switch—Ignition switch light, interior light,
front personal lights and rear personal
lights
Vehicles with smart key system—Ignition
switch light, interior light, front personal
lights, rear personal lights and exterior
foot lights (For further information, see “Illuminated
entry system” on page 135 in Section
1
−5.)
You have 30 seconds to open a door after
using the wireless remote unlock feature.
If a door is not opened by then, all the
doors will be automatically locked again.
If the wireless remote control is used to
lock the doors near the window or door
handle, there is a possibility that the door
may not unlocked by entry function of
smart key system. Under these circum-
stances, use the wireless remote control
to unlock the doors.
The time before automatic door lock func-
tion can be changed. For details, contact
your Toyota dealer.
If the lock or unlock switch is kept
pressed in, the locking or unlocking opera-
tion is not repeated. Release the switch
and then push again.

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1. Using a coin or equivalent, open thetransmitter case.2. Remove the circuit board, then removethe discharged transmitter battery.
NOTICE
Take care not to damage the circuit
board.
 Do not bend the terminals.
3. Put in a new transmitter battery with
positive (+) side up. Install the circuit
board into the transmitter case.
Close the transmitter case securely.
NOTICE
 Make sure the positive side and
negative side of the transmitter bat-
tery are faced correctly.
 Do not replace the battery with wet
hands. Water may cause unexpected
rust.
 Do not touch or move any compo-
nents inside the transmitter, or it
may interfere with proper operation.

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Be careful not to bend the electrode
when inserting the transmitter bat-
tery and that dust or oils do not
adhere to the transmitter case.
 Close the transmitter case securely.
After replacing the battery, check that the
transmitter operates properly. If the trans-
mitter still does not operate properly, con-
tact your Toyota dealer. The transmitter can easily be damaged
when replacing the battery. We recom-
mend having the battery replaced by your
Toyota dealer. If you have to do it your-
self, use a CR2032 lithium battery or
equivalent and a flathead screwdriver.CAUTION
Special care should be taken to pre-
vent small children from swallowing
the removed transmitter battery or
components.
NOTICE

Be careful not to touch the circuit,
as this may generate static electric-
ity that can damage the transmitter.
 When replacing the transmitter bat-
tery, be careful not to lose the com-
ponents.
 Replace only with the same or
equivalent type recommended by a
Toyota dealer.
 Dispose of used batteries according
to the local laws.
Replace the transmitter battery by follow-
ing these procedures:
1. Push the release button and take out
the mechanical key.
—Replacing battery
(with smart key system)

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2. Using a flathead screwdriver or equiva-lent, open the transmitter case.3. Remove the discharged transmitter bat-tery by flathead screwdriver or equiva-
lent. Insert the guide groove and lift as
shown in the above illustration.
NOTICE
Do not modify the battery case. It
may cause a trouble.
4. Put in a new battery with the positive(+) side up. Install the cover and insert
the mechanical key into the transmitter.
Close the transmitter case securely.