ECU LEXUS LS430 2005 User Guide

KEYS AND DOORS
38
Locking/Unlocking the doors
When you push the “LOCK” button on the key briefly, all
the doors can be locked from outside the vehicle.
At this time, you can hear one beep and the turn signal lights
flash once.* However, when you push the “LOCK” button with
any door not closed securely, the buzzer sounds for 10
seconds.** To stop the buzzer, close all the doors securely or
push the “UNLOCK” button. If the key is in the ignition switch,
locking cannot be done.
NOTE:
* The turn signal lights can be set not to flash.
** The buzzer can be set not to sound if a door is not closed
securely.
Ask your Lexus dealer for details.
If outer foot lights are illuminated, you can turn off the lights by
pushing the “LOCK” button on the key. (For details, see “Outer
foot lights” on page 233.)
NOTICE
Do not push the “LOCK” button any longer than 2 to 3
seconds. Pushing the button longer activates an alarm.
For details, see page 40.
When you push the “UNLOCK” button, the driver’s door
is unlocked and outer foot lights come on. Pushing the
“UNLOCK” button once again within 3 seconds from the
first push, all other doors are also unlocked.*
For outer foot lights, see “Outer foot lights” on page 233.
NOTE:
* The 2step unlocking function can be changed.
Ask your Lexus dealer for details.
At this time, two beeps sound and the turn signal lights flash
twice.* Together with the activation of unlocking, the interior
light comes on for 15 seconds if the interior light switch is in
“DOOR” position.** However, this function does not work
when the ignition switch is in the “ACC” or “ON” position. \
For
further information, see “Interior lights” on page 112.
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.
NOTE:
* The turn signal lights can be set not to flash.
** The interior light can be set not to come on or the duration
of lighting can be changed.
*** The time before automatic relocking can be changed.
Ask your Lexus dealer for details.
Even if the “LOCK” or “UNLOCK” button is kept pressed in, the
locking or unlocking operation is not repeated. Release the
button and then push it again.

KEYS AND DOORS
45
arrow direction.
11L0291
2. Remove the module from the key frame.
11L0301
3. Remove the 2 screws to take out the lid of the module.
4. Take out the discharged battery and put a new battery with
the positive side up.
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 components inside the
transmitter, or it may interfere with proper operation.
 Be careful not to bend the electrode when inserting
the battery and that dust or oils do not adhere to the
inside of the module.
 Take care not to lose the screws and Oring.
5. Install the lid with the 2 screws.
NOTICE
Take care not to damage or bend the Oring when
installing.
6. Install the module into the key frame and secure the cover
with the screw.
7. When pushing any switch on the wireless key, make sure
the indicator light comes on.

KEYS AND DOORS
50
THEFT DETERRENT SYSTEM
17L013
To deter theft of the vehicle, this system is designed to
sound an alarm if any of the doors, trunk or hood is
forcibly unlocked or opened or the battery terminal is
disconnected and then reconnected while the vehicle is
locked.
The alarm blows the horn intermittently, flashes the headlights,
tail lights, turn signal lights and other exterior lights. When the
interior light switch is in the “DOOR” position, the interior lights
also turn on.
After the alarm is activated, when you unlock any door or the
trunk using an ignition key or wireless remote control or smart
key system, the tail lights turn on for about 2 seconds to inform
you that the system was activated.
17L021
 Security indicator light
Setting the system
In the case of the smart key system:
1. Turn the ignition switch to the “LOCK” position.
The engine immobilizer system causes to the indicator light to
flash.
2. Close and lock all the doors, trunk and hood using an
ignition key or wireless remote control or smart key
system.
If you lock them with wireless remote control or smart key
system, the turn signals flash once.*
NOTE:
* The turn signals can be set not to flash.
Ask your Lexus dealer for details.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
86
(e) Discharge Warning Light
This light warns that the battery is being discharged.
If it comes on while you are driving, stop the vehicle, turn off the
engine, and check for the cause. Look first at the engine drive
belt.
 If it is loose or broken, the generator will not charge the
battery properly.
 If the belt is O.K., there is a problem somewhere in the
charging system.
The engine ignition will continue to operate, however, until the
battery is discharged. Turn off the air conditioning, blower,
radio, etc., and drive directly to the nearest Lexus dealer or
repair shop.
NOTICE
Do not continue driving if the engine drive belt is broken
or loose.
(f) Malfunction Indicator Lamp
This lamp comes on when the ignition switch is turned to
the “ON” position and goes off after the engine starts.
This means that the warning light system is operating
properly.
If the lamp remains on, or the lamp comes on while
driving, first check the following:
 Empty fuel tank
If the fuel tank is empty, refuel immediately.
 Loose fuel tank cap
If the fuel tank cap is loose, securely tighten it.
These cases are temporary malfunctions. The malfunction
indicator lamp will go off after taking several driving trips.
If the lamp does not go off even after several trips, contact your
Lexus dealer as soon as possible.
If the fuel tank is not empty or the fuel tank cap is not
loose...
 There is a problem somewhere in the engine, emission
control system, electronic throttle control system, automatic
transmission electrical system or warning light system itself.
Contact your Lexus dealer as soon as possible to service the
vehicle.
If this lamp comes on and engine speed does not increase
when the accelerator pedal is depressed, there may be a
problem somewhere in the electronic throttle control system.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
97
W43W256
W42W257
W258
W44W259
W46W260
When any door or trunk is open with the ignition switch
turned on, a message appears to let you know which door
or trunk is open. If you continue driving in this condition,
the master warning light flashes and a warning tone
sounds when the vehicle speed exceeds 5 km/h (3 mph).
If any of the above warning messages appears, stop your
vehicle and close the door or trunk securely.
W52W261
If the driver’s door is opened with the ignition switch
turned off and the moon roof opened, the master warning
light flashes, a warning tone sounds and the above
message appears.
When you leave your vehicle, be sure to close the moon roof.
w262
If you start driving with the parking brake applied, the
master warning light flashes, a warning tone sounds and
the above message appears when the vehicle speed
exceeds 5 km/h (3 mph).
If the above warning message appears, stop your vehicle and
release the parking brake.
W48W263
If the vehicle stability control system or the traction
control system malfunctions, the master warning light
and “TRAC OFF” indicator light come on. At this time a
warning tone sounds and the above message appears.
If the message appears, the vehicle stability control system
and traction control system do not work. Although it is no
problem to continue driving, have your vehicle checked by
Lexus dealer as soon as possible.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
109

Do not perform circling calibration of the compass in a place
where the earth’s magnetic field is subject to interference by
artificial magnetic fields (underground parking, under a
steel tower, between buildings, roof parking, near a
crossing, near a large vehicle, etc.).
 During calibration, do not operate electric systems (moon
roof, power windows, etc.) as they may interfere with the
calibration.
CAUTION
When doing the circling calibration, be sure to secure
a wide space, and watch out for people and vehicles
in the neighborhood. Do not violate any local traffic
rules while performing circling calibration.
 Do not adjust the display while the vehicle is moving.
Be sure to adjust the display only when the vehicle is
stopped.
INSTRUMENT PANEL LIGHT
CONTROL
13L143a
To adjust the brightness of the instrument panel lights,
turn the knob.
With the knob turned fully right, the intensity of the instrument
panel lights will not be reduced when the headlight switch is on.

INTERIOR EQUIPMENT
122
GLOVE BOX
14L240
 1Type A 2Type B 3Unlock 4Lock 5Open
To open the glove box door, pull the lever. To lock the
glove box door, insert the master key and turn it
clockwise.
With the tail lights on, the glove box light will come on when the
glove box door is open.
CAUTION
To reduce the chance of injury in case of an accident or
a sudden stop, always keep the glove box door closed
while driving.
GARAGE DOOR OPENER
The garage door opener (\b Universal
Transceiver) is manufactured under license from
HomeLink
\b and can be programmed to operate garage
doors, gates, entry doors, door locks, home lighting
systems, and security systems, etc.
(a) Programming the HomeLink\b
14L070
 1 Buttons 2Indicator light
The HomeLink
\b in your vehicle has 3 buttons and you can
store one program for each button.
To ensure correct programming into the HomeLink
\b, install a
new battery in the hand −held transmitter prior to programming.

INTERIOR EQUIPMENT
1244. Repeat steps 1 through 3 for each remaining HomeLink
\b
button to program another rolling code system.
Programming an entrance gate /
Programming all devices in the Canadian
market
1. Decide which of the 3 HomeLink\b buttons you want to
program.
2. Place your hand −held gate/device transmitter 25 to 75 mm
(1 to 3 in.) away from the surface of the HomeLink
\b.
Keep the indicator light on the HomeLink
\b in view while
programming.
3. Press and hold the selected HomeLink
\b button.
4. Continuously press and release (cycle) the hand−held
gate/device transmitter button every two seconds until step 5
is complete.
5. When the indicator light on the HomeLink
\b changes from a
slow to a rapid flash after 20 seconds, you can release both
buttons.
6. Test the operation of the HomeLink
\b by pressing the newly
programmed button. Check to see if the gate/device operates
correctly.
7. Repeat steps 1 through 6 for each remaining HomeLink
\b
button to program another device.
Programming other devices
To program other devices such as home security systems,
home door locks or lighting, contact your authorized Lexus
dealer for assistance.
Reprogramming a button
Individual HomeLink\b
buttons c annot be erased, however, to
reprogram a single button, follow the procedure “Programming
the HomeLink
\b”.
(b) Operating the HomeLink\b
To operate the HomeLink\b, press the appropriate HomeLink\b
button to activate the programmed device. The HomeLink\b
indicator light should come on. The HomeLink\b continues to
send the signal for up to 20 seconds as long as the button is
pressed.

INTERIOR EQUIPMENT
126
CUPHOLDERS
Front
14L242
To use the cupholder, push the top of the cupholder
portion of the rear console box.
The cupholder is designed for holding cups or drink−cans
securely. When the cupholder is in use, keep the rear console
box closed.
CAUTION
 Do not place anything else other than cups or
drinkcans in the cupholder, as such items may be
thrown about in the compartment and possibly injure
people in the vehicle during sudden braking or in an
accident.
 To reduce the chance of injury in case of an accident
or sudden stop while driving, keep the cupholder
closed when not in use.
Rear
14L321
Vehicles with rear power seats

INTERIOR EQUIPMENT
127
14L217
Vehicles without rear power seats
To use the cupholder, open the cupholder portion of the
center armrest in the rear seat.
The cupholder is designed for holding cups or drink −cans
securely.
CAUTION
 Do not place anything else other than cups or
drinkcans in the cupholder, as such items may be
thrown about in the compartment and possibly injure
people in the vehicle during sudden braking or in an
accident.
 To reduce the chance of injury in case of an accident
or sudden stop while driving, keep the cupholder
closed when not in use.
COIN BOX
14L238
To use the coin box, push the coin box button.
CAUTION
Keep the coin box closed when not in use.