2007 TOYOTA AVALON ECU

iii
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 pro-
vides, Section 1 −3 of this Owner’s Manual is the most impor-
tant Section for you and your family to read.
Section 1−3 describes the function and operation concerning
seats, seat belts, SRS airbags and child restraint systems of
this vehicle and some potential hazards you should be aware
of. These systems work together along with the overall struc-
ture 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 sys-
tems can provide when used together. That is why it is im-
portant for you and your family to understand the purpose
and proper use of each of these systems and how they re-
late to each other.
The purpose of all occupant restraint systems is to help re-
duce the possibility of death or serious injury in the event of
a collision. None of these systems, either individually or to-
gether, 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 be-
come 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) air-
bags 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.

v
SRS airbag system diagnostic data
If your vehicle is equipped with a vehicle stability control
(VSC) system, its Electronic Control Unit (ECU) may contain
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 diagnostic 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 leasing
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 purposes
without disclosing details of the vehicle owner, and only
when it is deemed necessary
 Disclose summarized data cleared of vehicle identifica-
tion information to a non −Toyota organization for re-
search purposes

14
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 45 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 46
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)

19
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.You can use up to 4 wireless remote con-
trol transmitters (for vehicles with key cyl-
inder
−type ignition switch) or 7 wireless
remote control transmitters (for vehicles
with smart key system) for the same ve-
hicle. Contact your Toyota dealer for de-
tailed information.
If the wireless remote control transmitter
does not actuate the doors, or does not
operate from a normal distance, or if the
indicator on the transmitter is dimmed or
does not come on:
Check for closeness to a radio trans-
mitter such as a radio station or an
airport which can interfere with normal
operation of the transmitter.
The battery may have been consumed.
Check the battery in the transmitter. To
replace the battery, see “—Replacing
battery” on pages 24 or 25 in this Sec-
tion.
If you lose your transmitter, contact your
Toyota dealer as soon as possible to
avoid the possibility of theft, or an acci-
dent. (See “If you lose your wireless re-
mote control transmitter” on page 332 in
Section 4.) For vehicles sold in U.S.A.
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
(1) This device may not cause harmful
interference, and (2) this device must
accept any interference received, includ-
ing interference that may cause unde-
sired operation.

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Locking operation (vehicles with smart
key system)
Unlocking operation (vehicles with smart
key system)
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 3
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. 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—Interior
light, front personal lights, rear personal
lights and exterior foot lights

25
3. Put in a new transmitter battery withpositive (+) 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.
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 CR1632 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:
—Replacing battery
(with smart key system)

27
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.
NOTICE
 Make sure the positive side and
negative side of the battery 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.
 Be careful not to bend the electrode
when inserting the transmitter bat-
tery and that dust or oils do not
adhere to the 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 smart key system consists mainly
of the following functions.
Engine immobilizer function (For de-
tails, see “Engine immobilizer system”
on page 16 in this Section.)
Wireless remote control function (For
details, see “Wireless remote control”
on page 18 in this Section.)
Push button start function (For details,
see “How to start the engine” on page
296 in Section 3.)
Entry function and start function (See
“ENTRY FUNCTION AND START
FUNCTION” described below.)
Steering lock function (See “STEERING
LOCK FUNCTION” described below.)
Smart key system

35
Locking operation
Push the lock button on the outside
door handle slowly and firmly. All the
doors lock simultaneously. At this time
one beep will be heard and turn signal
lights flash once.
In the following cases, you cannot be
locked by pushing the lock button and a
beep will sound as an indicator.
When any of the doors is not securely
closed. A beep will sound continuously
for 10 seconds.
When the lock switch is pressed while
opening or closing the door. A beep
will sound continuously for 10 seconds.
When the engine is not turned off. A
beep will sound continuously for 2 sec-
onds.
When the key is left in the vehicle. A
beep will sound continuously for 2 sec-
onds.
When attempting to lock the doors with
the key near a window or a door han-
dle. A beep will sound continuously for
2 seconds.
The beep may not sound if the key is on
the instrument panel, on the package tray,
in the glove box or on the floor, etc.
Unlocking operation
Grasp the outside door handle (sensors
are located on the underside of the
door handles). Only the driver ’s door
unlocks when the driver ’s door handle
is grasped. All the doors unlock when
any door handle other than the driver’s
door handle is grasped. At this time
two beeps will be heard and the turn
signal lights flash twice.
The doors may not unlock if the handle
is grasped too quickly. Be sure to confirm
that the doors are unlocked before pulling
the door handle. If the doors do not open
when the handle is pulled, return the han-
dle to its original position.