ignition Lexus IS300 2002 Electrical Components / LEXUS 2002 IS300 WAGON (OM53423U) Service Manual

COMFORT ADJUSTMENT
11 8
Front seat belt pretensioners
SV16151
The driver and front passenger's seat belt pretensioners
are designed to be activated in response to a severe
frontal impact.
When the airbag sensor detects the shock of a severe frontal
impact, the front seat belts are quickly drawn back by the
retractor so that the belts snugly restrain the front seat
occupants.
The front seat belt pretensioners are activated even with no
passenger in the front seat.
Collisions occurring at certain speeds and angles may cause
the seat belt pretensioners and SRS airbags not to operate all
together.
SV16061
This indicator comes on when the ignition key is turned to
the ºACCº or ºONº position. It goes off after about 6
seconds. This means the front seat belt pretensioners are
operating properly.
The warning light system monitors the airbag sensor
assembly, front airbag sensors, side and curtain shield airbag
sensors, front seat belt pretensioner assemblies, inflators,
warning light, interconnecting wiring and power sources. (For
details, see ºService reminder indicators and warning buzzersº
on page 42.)

COMFORT ADJUSTMENT
120
NOTICE
Do not perform any of the following changes withoutconsulting your Lexus dealer. Such changes caninterfere with proper operation of the front seat beltpretensioners in some cases.
Installation of electronic devices such as a mobiletwo±way radio, cassette tape player or compact disc
player.
Repairs on or near the front seat belt retractor assemblies.
Modification of the suspension system.
Modification of the front end structure.
Attachment of a grille guard (bull bar, kangaroo bar,etc.), snowplow, winches or any other equipment tothe front end.
Repairs made on or near the front fenders, front endstructure or console.
SV16061
This front seat belt pretensioner system has a service
reminder indicator to inform the driver of operating problems.
If any of the following conditions occurs, this indicates a
malfunction of the airbags or pretensioners. Contact your
Lexus dealer as soon as possible to service the vehicle.
 The light does not come on when the ignition key is turned
to the ºACCº or ºONº position, or remains on.
 The light comes on or flashes while driving.
 If either front seat belt does not retract or cannot be pulled
out due to a malfunction or activation of the relevant front
seat belt pretensioner.

COMFORT ADJUSTMENT
123
Wear their seat belts properly.
 Remain properly seated with their back upright and
against the seat at all times.
SV16093

Curtain shield airbags
In response to a severe side impact, the curtain shield
airbags for the driver or front passenger work together
with the seat belts by inflating to help reduce injury mainly
to the driver's or front passenger's head.
The curtain shield airbag is activated even with no passenger
in the front seat.
Be sure to wear your seat belt properly.
CAUTION
The curtain shield airbags inflate with considerable
force. To avoid potential death or serious injury when
they inflate, the driver and front passenger must:
 Wear their seat belts properly.
 Remain properly seated with their back upright and
against the seat at all times.
SV16061
The indicator comes on when the ignition key is turned to
the ºACCº or ºONº position. It goes off after about 6
seconds. This means the SRS airbags are operating
properly.

COMFORT ADJUSTMENT
134
SV16061
This SRS front airbag system has an indicator to inform the
driver of operating problems. If either of the following
conditions occurs, this indicates a malfunction of the airbags.
Contact your Lexus dealer as soon as possible to service the
vehicle.
When the ignition key is turned to the ºACCº or ºONº
position, the light does not come on, stays on or flashes.
 The light comes on or starts flashing while driving.
If the light stays on, it indicates that the driver and front
passenger airbags fail. If the light flashes, the side airbags fail.SV16097
In the following cases, contact your Lexus dealer as soon as
possible:
Any of the SRS airbags have been inflated.
 The front of the vehicle and portion of the doors (shaded in
the illustration) were involved in an accident that was not
severe enough to cause the SRS airbags to inflate.

THEFT DETERRENT
172
THEFT DETERRENT SYSTEM
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 the battery terminal is disconnected
and then reconnected while the vehicle is locked.*
NOTE: *The system operating condition can be changed.Ask your Lexus dealer for details.
The alarm blows the horn intermittently and flashes the
headlights, tail lights and other exterior lights.
SV17002
Setting the system
1. Turn the ignition key to the ºLOCKº position and
remove it.
The engine immobiliser system causes the indicator light to
flash. 2. Close and lock all the doors, trunk and hood using an
ignition key or wireless remote control.
The flashing indicator light will remain on when all the doors,
trunk and hood are closed and locked.
3. After 30 seconds, the indicator starts flashing and the
system is set.
Cancelling the system
When you unlock any door or trunk using an ignition key
or wireless remote control, the system is cancelled.
Activating the system
The alarm sounds for 60 seconds if any of the following are
operated:


Unlocking any door or trunk without using an ignition key or
wireless remote control.

Opening the hood forcibly.

Reconnecting the battery.
If any door is unlocked and the ignition key is not in the ignition
switch during the alarm sounding, its door is automatically
locked.
To stop the alarm: Use either of the following methods.

Unlock the door or trunk using an ignition key or wireless
remote control.

Turn the ignition switch on.

THEFT DETERRENT
173
Testing the system
1. Open all the windows.
2. Set the system as described above.
The front doors should be locked with the ignition key or
wireless remote control. Be sure to wait until the indicator light
starts flashing.
3. Unlock one of the doors from the inside.
The system should activate the alarm.
4. Unlock any of the doors with a key or the wireless
remote control to cancel the system.
5. Repeat this operation for the other doors and hood.
When testing the hood, also check that the system is activated
when the battery terminal is disconnected and then
reconnected.
If the system does not work properly, have it checked by your
Lexus dealer.
NOTICE
Disconnecting the battery may result in the erasure of information you have set in the computer memory. After
reconnecting the battery, check that the memorized data has been retained. If it has been erased, input it into
the computer once more.
THEFT PREVENTION LABELS
17L002
Your new vehicle carries theft prevention labels which are
approximately 56 mm (2.20 in.) by 16 mm (0.63 in.).
The purpose of these labels is to reduce the incidence of
vehicle thefts by facilitating the tracing and recovery of parts
from stolen vehicles. The label is designed so that once it is
applied to a surface, any attempt to remove it will result in
destroying the integrity of the label. Transferring these labels
intact from one part to another will be impossible.
NOTICE
You should not attempt to remove the theft prevention labels as it may violate certain state or federal laws.

AIR CONDITIONING
176
AUTOMATIC AIR CONDITIONING CONTROLS
SV21019

You can adjust the brightness of the display. SeeºInstrument panel light controlº on page 51 for details.
The automatic air conditioning automatically maintains
the set temperature.
In the automatic operation mode, the air conditioning selects
the most suitable fan speed, air flow, air intake and on±off of
the air conditioning according to the temperature.
The ignition key must be in the ºONº position.
NOTICE
To prevent the battery from being discharged, do notleave the air conditioning on longer than necessarywhen the engine is not running.

AIR CONDITIONING
182However, once selecting ºRECIRCULATED AIRº of the air
intake manually will make this function inoperable. In order to
make this function operable again, first select ºOUTSIDE AIRº
of the air intake, turn off the ignition switch, and start the engine
again. Then this function return to be operable.
If manual on±off of the air conditioning is desired ±
Push the ºA/Cº button to turn the air conditioning on and push
it again to turn the air conditioning off.
The air conditioning does not work if the outside temperature
is lowered down to around 0C (32F).
If the system is used for ventilation, heating in dry weather or
removing frost or exterior fog on the windshield, turn the air
conditioning off once it is no longer required. This will improve
fuel economy. The air conditioning can be used for year±round
automatic temperature control including cooling and
dehumidifying operation.
If the air conditioning compressor does not operate, the
indicator of the ºA/Cº button will blink. If the indicator of the
ºA/Cº button blinks even when the ºA/Cº button is pushed
again, have the compressor checked by your nearest Lexus
dealer.
(b) Windshield defogging and defrosting
SV21016
To remove interior fog on the windshield ±
1. Turn the air flow control dial to ºWINDSHIELDº.
2. Set the ºOUTSIDE AIRº mode.
To remove frost or exterior fog on the windshield ±
1. Turn the temperature control dial to the maximum
temperature.
2. Turn the air flow control dial to ºWINDSHIELDº.
3. Turn the fan speed control dial to ºHIº.
4. Leave the air conditioning on±off button off.

AUDIO
194
Using your audio system: some basics
This section describes some of the basic features of the Lexus
audio system. Some information may not pertain to your
system.
Your audio system works when the ignition key is in the ºACCº
or ºONº position.
NOTICE
To prevent the battery from being discharged, do not leave the car audio on longer than necessary when theengine is not running.
(a) Turning the system on and off
SV22050
Push this knob to turn the audio system on and off. Turn
this knob to adjust the volume.
The system turns on in the last mode used.
SV22051
Push ºAMº, ºFMº, ºT APEº or ºDISCº to turn on that mode.
The selected mode turns on directly.
Push these buttons if you want to switch from one mode to
another.
If the tape or disc is not set, the cassette player or compact disc
player does not turn on.
You can turn off the cassette player by ejecting the cassette
tape. If the audio system was previously off, then the entire
audio system will be turned off when you eject the cassette
tape. If another function was previously playing, it will come on
again.

AUDIO
207
Push
this button on the lower side to skip backward. Push the
button until ºREWº and the number you want to skip appear on
the display.
 If you set ºREW 1º, the player will rewind to the beginning
of the current program.
 When counting the number of programs you want to rewind,
remember to count the current program as well. For
example, if you want to rewind to a song that is two before
the song you are listening to, push this button until ºREW
3º appears on the display.
When the beginning of the tape is reached, the player
automatically resumes normal play.
There must be at least 5 seconds of blank space between
programs for this feature to work correctly.
ºRPTº, ºSKIPº or ºAutomatic program selectionº
features: These features may not work well with some spoken
word, live or classical recordings.
Compact disc player operation
(a) Inserting or ejecting compact discs
The ignition switch must be in the ºACCº or ºONº position.
Your automatic changer can store up to 6 discs.
Ty p e A
SV22062
 Setting a single compact disc:
1. Push the ºLOADº button briefly.
You can set a disc at the lowest empty disc number.
2. When the amber indicators of the slot start blinking, the
ºWAIT DISCº appears on the display. After the indicators
blinking amber change to the green and stay on, the
ºWAIT DISCº changes to the ºLOAD DISCº on the display.
While the green indicators stay on, insert only one disc.
If you need to insert the next disc, repeat the same
procedure to insert another disc.
After insertion, the set disc is automatically loaded.