1998 Lexus ES300 wiring

GAUGES, METERS AND SERVICE REMINDER INDICATORS
32
If the brake fluid level is correct ...
Have the warning system checked by your Lexus dealer.
(b) Seat Belt Reminder Light and Buzzer
Once the ignition key is turned to ºONº or ºSTARTº, the reminder light and
buzzer come on if the driver's seat belt is not fastened. Unless the driver
fastens the belt, the light stays on and the buzzer stops after about 4 to 8
seconds.
(c) SRS Warning Light
The indicator comes on when the ignition key is turned to the ºACCº o\
r
ºONº position. It goes off after about 6 seconds. This means the SRS is
operating properly.
The SRS warning light system monitors the airbag sensor assemblies,
inflators, seat belt pretensioners, warning light, interconnecting wiring and
power sources.
If either of the following conditions occurs, this indicates a malfunction
somewhere in the parts monitored by the warning light system. Contact your
Lexus dealer as soon as possible to service the vehicle.

The light does not come on as described above.
 The light 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 air\
bags fail.
If the light flashes, the side airbags and/or seat belt pretensioners fa\
il.
(d) 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.

COMFORT ADJUSTMENT
70
16E125±1

Side airbags
Side airbags:
In response to a severe side impact, the side airbag for the driver or front
passenger works together with the seat belt to help preventing or
reducing injury by inflating, in order to decrease the impact mainly on the
driver or front passenger's chest.
The side airbag on the passenger seat is activated even with no passenge\
r in
the front seat.
Be sure to wear your seat belt.
CAUTION
SRS side airbags inflate with considerable force. To avoid
potential death or serious injury during inflation of a side
airbag, Lexus strongly recommends that the driver and front
passenger;
 Wear their seat belt.
 Remain properly seated with their back against the seat at
all times.
16E022
The indicator comes on when the ignition key is turned to the ºACCº o\
r
ºONº position. It goes off after about 6 seconds. This means the SRS is
operating properly.
The SRS warning light system monitors the airbag sensor assemblies,
inflators, seat belt pretensioners, warning light, interconnecting wiring and
power sources.

COMFORT ADJUSTMENT
78
16E127
Do not attach a cup holder or any other device on or around the door.
When the side airbag inflates, the cup holder or any other device will
be thrown with great force, or the side airbag may not activate
correctly, resulting in death or serious injury. Likewise, the driver
and front passenger should not hold things in their arms or on their
knees.
 Do not use accessories for the seats which cover the parts where the
side airbags should inflate. Such accessories may prevent the side
airbags from activating correctly, causing death or serious injury.
 Do not modify or remove any wiring. Do not modify, remove, strike
or open any components, such as the steering wheel column cover,
front passenger airbag cover, front seats, airbag sensor assembly or
seat belt assemblies. Doing any of these may cause sudden SRS
operation or disable the system, which could result in death or
serious injury.
 Do not modify or replace the seats or surface of the front seats with
side airbags. Such changes may disable the system or cause the side
airbags to inflate, resulting in death or serious injury. Consult your
Lexus dealer.
Failure to follow these instructions can result in death or serious
injuries.
NOTICE
Do not perform any of the following changes without consulting your
Lexus dealer. Such changes can interfere with proper operation of the
SRS in some cases.
 Installation of electronic items such as a mobile two±way radio,
cassette tape player or compact disc player.
 Modification of the suspension system.
 Modification of the front end structure and side structure of the
passenger compartment.
 Attachment of a grille guard (bull bar, kangaroo bar, etc.), snow plow,
winches or any other equipment to the front end.
 Repairs made on or near the front fenders, front end structure,
console, steering column, steering wheel, dashboard near the front
passenger airbag, front seats or seat belt assembly.

STARTING AND DRIVING
136
HOW TO START THE ENGINE
Before cranking
1. Apply the parking brake firmly.
2. Turn off unnecessary lights and accessories.
3. Put the selector lever in ºPº. If you need to restart the engine \
while the
vehicle is moving, put the selector lever in ºNº. A starter safety devic\
e will
prevent the starter from operating if the selector lever is in any drive positi\
on.
4. Depress the brake pedal and hold it to the floor until you are ready to \
drive
off.
Starting the engine
Before starting the engine, be sure to follow the instructions in ºBefore
crankingº.
Normal starting procedure
The multiport fuel injection system/sequential multiport fuel injection sys\
tem
in your engine automatically controls the proper air±fuel mixture for s\
tarting.
You can start a cold or hot engine as follows:
1. With your foot off the accelerator pedal, crank the engine by turning the
key to ºSTARTº. Release it when the engine starts.
2. After the engine runs for about 10 seconds, you are ready to drive.If the weather is below freezing, let the engine warm up for a few minut\
es
before driving. Do not leave the vehicle while the engine is warming up.
If the engine stalls ...
Simply restart it , using the correct procedure given in normal starting\
.
If the engine will not start
See ºIf your vehicle will not startº on page 162.
NOTICE

Do not crank for more than 30 seconds at a time. This may overheat
the starter and wiring systems.
 Do not race a cold engine.
 If the engine becomes difficult to start or stalls frequently, have the
engine checked immediately.

DRIVING TIPS
156
Brakes and safety chains
Lexus recommends trailers with brakes that conform to any
applicable federal and state/provincial regulations.
 A safety chain must always be used between the towing vehicle and the
trailer. Leave sufficient slack in the chain for turns. The chain should
cross under the trailer tongue to prevent the tongue from dropping to
the ground in case it becomes damaged or separated. For correct
safety chain procedures, follow the hitch or trailer manufacturer's
recommendations.
CAUTION
 If the total trailer weight exceeds 450 kg (1000 lb.), trailer
brakes are required.
 Never tap into your vehicle's hydraulic system as it will
lower its braking effectiveness.
 Never tow a trailer without using a safety chain securely
attached to both the trailer and the vehicle. If damage
occurs to the coupling unit or hitch ball, there is possible
danger of the trailer wandering over into another lane.
Tires
Ensure that your vehicle's tires are properly inflated. Adjust the tire
pressure to the recommended cold tire pressure indicated below:
Tire pressure, kPa (kgf/cm
2 or bar, psi)
Front 220 (2.2, 32)
Rear 220 (2.2, 32)
 The trailer tires should be inflated to the pressure recommended by the
trailer manufacturer in respect to the total trailer weight.
Trailer lights
Trailer lights must comply with federal, state/provincial and local
regulations. See your local recreational vehicle dealer or rental agency for
the correct type of wiring and relays for your trailer. Check for correct
operation of the turn signals and stop lights e ach time you hitch up. Direct
splicing may damage your vehicle's electrical system and cause a
malfunction of your lights.
Break±in schedule
 Lexus recommends that you do not tow a trailer with a new vehicle or a
vehicle with any new power train component (engine, transmission,
differential, wheel bearing, etc.) for the first 800 km (500 miles) of driving.
Maintenance
If you tow a trailer, your vehicle will require more frequent maintenance
due to the additional load. For this information, please refer to the
scheduled maintenance information in the ºOwner's Manual Supplement/
Maintenance Scheduleº.
 Retighten all fixing bolts of the towing ball and bracket after
approximately 1000 km (600 miles) of trailer driving.
Pre±towing safety check
Check that your vehicle remains level when a loaded or unloaded trailer is
hitched. Do not drive if the vehicle has an abnormal nose±up or
nose±down condition, and check for improper tongue load, overload, worn
suspension or other possible causes.
 Make sure the trailer cargo is securely loaded so that it cannot shift.
 Check that your rear view mirrors conform to any federal, state/provincial
or local regulation. If they do not, install required rear view mirrors\
appropriate for towing purposes.

IN CASE OF AN EMERGENCY163
NOTICE
Do not pull± or push±start the vehicle. It may damage the vehicle o\
r cause
a collision when the engine starts. Also the three±way catalytic conv\
erter
/ warm up three±way catalytic converter may overheat and become a fir\
e
hazard.
If the engine turns over at its normal speed but will not start ±
1. The engine may be flooded because of repeated cranking. See º(b) Star\
ting
a flooded engineº for further instructions.
2. If the engine still will not start, it needs adjustment or repair. Call a Lexus
dealer, Roadside Assistance or Customer Service Assistance. (See
ºForewordº.)
(b) Starting a flooded engine
If the engine will not start, your engine may be flooded because of
repeated cranking.
If this happens, turn the key to ºSTARTº with the accelerator pedal held down.
Continue this operation for 30 seconds and then stop cranking. Then try
starting the engine with your foot off the accelerator pedal.
If the engine does not start after 30 seconds of cranking, release the key\
, wait
a few minutes and try again.
If the engine still will not start, it needs adjustment or repair. Call a Lexus
dealer. Roadside Assistance or Customer Service Assistance. (See
ºForewordº.)
NOTICE
Do not crank for more than 30 seconds at a time. This may overheat the
starter and wiring systems.

ELECTRICAL COMPONENTS227
64E016

1Type A 2Type B 3Good 4Blown
If there is an overload in the circuits from the battery, the fuses are designed
to blow before the entire wiring harness is damaged.
NOTICE
Before replacing the fuses, have the cause of electrical overload
determined and repaired by your Lexus dealer.
CAUTION
Always use a genuine Lexus fuse or equivalent for
replacement. Never install an ordinary wire ± even for a
temporary fix. This may cause extensive damage and possibly
a fire.
ADDING WASHER FLUID
64E017±1
If the washer tank becomes nearly empty, add washer fluid.
You may use plain water as washer fluid. However, in cold areas where
temperatures range below the freezing point, use washer fluid containing
antifreeze. This product is available at your Lexus dealer and most auto parts
stores. Follow the manufacturer's directions for how much to mix with water.
NOTICE
Do not use engine antifreeze or any other substitute because it may
damage your vehicle's paint.