1997 Lexus ES300 check engine

STARTING AND DRIVING
128
THREE±WAY CATALYTIC
CONVERTER
The three±way catalytic converter is an emission
control device installed in the exhaust system.
It looks like a muffler, but its purpose is to reduce pollutants
in the exhaust gas.
CAUTION!
Keep people and combustible materials away
from the exhaust pipe while the engine is running.
The exhaust gas if very hot.
Do not drive, idle or park your vehicle over
anything that might burn easily such as grass,
leaves, paper or rags.
NOTICE
A large amount of unburned gases flowing into the
three±way catalytic converter may cause it to
overheat and create a fire hazard. To prevent this
and other damage, observe the following
precautions:
Use only unleaded gasoline.
Do not drive with an extremely low fuel level;
running out of fuel could cause the engine to
misfire, creating an excessive load on the
three±way catalytic converter.
Do not allow the engine to run at idle speed for
more than 20 minutes.
Avoid racing the engine.
Do not push±start or pull±start your vehicle.
Do not turn off the ignition while the vehicle is
moving.
Keep your engine in good running order.
Malfunction in the engine electrical system,
electronic ignition system/distributor ignition
system or fuel system could cause an extremely
high three±way catalytic converter temperature.
If the engine becomes difficult to start or stalls
frequently, take your vehicle in for a check±up as
soon as possible. Remember, your Lexus dealer
knows your vehicle and its three±way catalytic
converter system best.

STARTING AND DRIVING
129
To ensure that the three±way catalytic converter
and the entire emission control system operate
properly, your vehicle must receive the periodic
inspections required by the Lexus Maintenance
Schedule. For scheduled maintenance
information, refer to the separate ªOwner's
Manual Supplement/Maintenance Scheduleº.
ENGINE EXHAUST CAUTION
CAUTION!
Avoid inhaling the engine exhaust. It contains
carbon monoxide, which is a colorless and
odorless gas. It can cause unconsciousness or
even death.
Make sure the exhaust system has no holes or
loose connections. The system should be
checked from time to time. If you hit something,
or notice a change in the sound of the exhaust,
have the system checked immediately.
Do not run the engine in a garage or enclosed area
except for the time needed to drive the vehicle in
or out. The exhaust gases cannot escape, making
this a particularly dangerous situation.
Do not remain for a long time in a parked vehicle
with the engine running. If it is unavoidable,
however, do so only in an unconfined area and
adjust the heating or cooling system to force
outside air into the vehicle.
Keep the trunk lid closed while driving. An open
or unsealed trunk lid may cause exhaust gases to
be drawn into the vehicle. If you must drive with
the trunk lid open to accommodate a large object,
close the windows, open all the dashboard vents
and have the heating or cooling system deliver
fresh air into the vehicle by turning the fan to high
speed with the air intake control button in the
OUTSIDE AIR mode.
To allow proper operation of your vehicle's
ventilation system, keep the inlet grilles in front of
the windshield clear of snow, leaves, or other
obstructions.
If you smell exhaust fumes in the vehicle, drive
with the windows open and the trunk lid closed.
Have the cause immediately located and
corrected.

STARTING AND DRIVING
130
BEFORE STARTING THE ENGINE
1. Check the area around the vehicle before entering it.
2 Adjust seat position, seatback angle, head restraint
height and steering wheel angle.
3. Adjust inside and outside rear view mirrors.
4. Lock all doors.
5. Fasten seat belts.
Remember to check that the service reminder indicators
function when turning the key to ªONº, and check the fuel
gauge to see that you have sufficient fuel.
IGNITION SWITCH WITH STEERING
LOCK
ªSTARTº ± Starter motor on. The key will return to the
ªONº position when released.
For starting tips, see page 132.
ªONº ± Engine on and all accessories on.
This is the normal driving position.
NOTICE
Do not leave the key in the ªONº position if the
engine is not running. The battery will discharge
and the electronic ignition system/distributor
ignition system could be damaged.
ªACCº ± Accessories such as the radio operate, but the
engine is off.

STARTING AND DRIVING
132
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 ªPº. If you need to restart the
engine while the vehicle is moving, put the selector lever in
ªNº. A starter safety device will prevent the starter from
operating if the selector lever is in any drive position.
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 ªBefore crankingº.
Normal starting procedure
The multiport fuel injection system/sequential multiport fuel
injection system in your engine automatically controls the
proper air±fuel mixture for starting. 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 ªSTARTº. 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 minutes 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 ªIf 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 system.
Do not race a cold engine.
If the engine becomes difficult to start or stalls
frequently, have the engine checked immediately.

STARTING AND DRIVING
139
(f) Good driving practice
If the transmission repeatedly upshifts and downshifts
between the third and overdrive gears when climbing a
gentle slope, turn off the overdrive switch. Be sure to turn
the switch on immediately after climbing the slope.
When towing a trailer, in order to maintain efficient engine
braking and electrical charging performance, do not use
overdrive.
CAUTION!
Always keep your foot on the brake pedal while
stopped with the engine running. This prevents the
vehicle from creeping.
NOTICE
Do not hold the vehicle on an upgrade with the
accelerator pedal. This can cause the transmission
to overheat. Always use the brake pedal or parking
brake.
(g) Rocking your vehicle in stuck
CAUTION
If you rock your vehicle to make it out when it
becomes stuck in snow, mud, sand, etc., first check
that there is no physical object or people around the
vehicle. During operation, the vehicle may suddenly
move forward or backward, causing injury or damage
to nearby people or objects.!
NOTICE
If you rock your vehicle, observe the following
precautions to prevent damage to the transmission
and other parts.
Do not depress the accelerator pedal while
shifting the selector lever or before the
transmission is completely shifted to forward or
reverse gear.
Do not race the engine and avoid spinning the
wheels
If your vehicle remains stuck after rocking the
vehicle several times, consider other ways such as
towing.

STARTING AND DRIVING
142
Cancelling the preset speed
You can cancel the preset speed by either of the following:
a. Pulling the control lever i the ªCANCELº direction.
b. Depressing the brake pedal.
If the vehicle speed falls below about 40 km/h (25 mph), the
preset speed will be automatically cancelled.
If the vehicle speed tops 16 km/h (10 mph) below the preset
speed, the preset speed will also automatically be cancelled.
If the preset speed automatically cancels out for other than
these reasons, have your vehicle checked by your Lexus
dealer at the earliest opportunity.
Resetting to a faster speed
Pressing the control lever upward in the ªRES/ACCº
direction and hold it. Release the lever when the desired
speed is attained. While the lever is held upward, the vehicle
will gradually gain speed.
When the difference between the actual vehicle speed and
the set speed is less than 5 km/h (3 mph), the set speed can
be increased 1.6 km/h (1 mph) each time by pressing the
control lever upward in the ªRES/ACCº direction quickly.
However, a quicker way to reset is to accelerate the vehicle
and then press the control lever downward in the
ªSET/COASTº direction.
Resetting to a slower speed
Press the control lever downward in the ªSET/COASTº
direction and hold it. Release the lever when the desired
speed is attained. While the lever is held downward, the
vehicle speed will gradually decrease.
When the difference between the actual vehicle speed and
the set speed is less than 5 km/h (3 mph), the set speed can
be lowered 1.6 km/h (1 mph) each time by pressing the
control lever downward in the ªSET/COASTº direction
quickly.
However, a quicker way to reset is to depress the brake
pedal and then press the control lever downward in the
ªSET/COASTº direction.
Even if you turn off the overdriveswitch with the cruise
control on, engine braking will not be applied because the
cruise control is not cancelled. To decrease the vehicle
speed, reset to a slower speed with the cruise control lever
or depress the brake pedal. If you use the brake pedal, cruise
control is cancelled.
Resuming the preset speed
If the preset speed is cancelled by pulling the control lever
or by depressing the brake pedal, pushing the lever up in the
ªRES/ACCº direction will restore the speed set prior to
cancellation. However, once the vehicle speed falls below
about 40 km/h (25 mph), the preset speed will not be
resumed.

STARTING AND DRIVING
144
TRACTION CONTROL SYSTEM
The traction control system automatically helps control
the spinning of the front wheels which may occur when
accelerating on slippery road surfaces, thus assisting
driver to control the driver to control the driving power
of the front wheels.
When you turn the ignition switch on, this system
always turns on. Leave the system on during ordinary
driving so that it can operate when needed. When
traction control is applied, the slip indicator light
blinks.
You can turn off the traction control system by pushing
the ªTRAC OFFº switch. The ªTRAC OFFº
indicator/warning light will then come on. Pushing the
ªTRAC OFFº switch a second time turns the system
back on and extingusihes the ªTRAC OFFº
indicator/warning light.
You may hear a slight clicking noise in the engine
compartment when the engine is started. This means that
the traction control system is in the self±check mode, and
does not indicate malfunction. When the traction control
system is operating, you may feel vibation or noise of your
vehicle, caused byoperation of the brakes. This indicates the
system is functioning properly.
When getting the vehicle out of the mud or new snow, etc.
the traction control system will help operate to prevent the
wheels from spinning.

STARTING AND DRIVING
146
Anti±lock brake system
The anti±lock brake system is designed to automatically
prevent lock±up of the wheels during a sudden brake or
braking on slippery road surfaces. This assists in
providing directional stability and steering performance
of the vehicle under these circumstances.
The anti±lock brake system becomes operative after the
vehicle has accelerated to a speed in excess of approximately
10 km/h (6 mph). It stops operating when the vehicle
decelerates to a speed below approximately 5 km/h (3 mph).
You may hear a sound in the engine compartment for a few
seconds when the engine is started or just after the vehicle
is started. This means that the anti±lock brake system is in
the self check mode, and does not indicate a malfunction.
Effective way to press the ABS brake pedal: When the
anti±lock brake system function is in action, you may feel
the brake pedal pulsating and hear a noise. In this situa-
tion, to let the anti±lock brake system work for you, just
hold the brake pedal down more firmly. Do not pump the
brake. This will result in reduced braking performance.
The brake pedal pulsation caused by the anti±lock brake
system may indicate hazardous road surface conditions.
Although the anti±lock brake system assists in providing
vehicle control, it is still important to drive with all due care,
because the anti±lock brake system cannot overcome the
laws of physics that act on your vehicle:
Braking capability is dependent on tire friction with the road
surface.
Even though the anti±lock brake system is operating, a
driver cannot maintain full control on certain slippery road
surfaces, when cornering at high speeds, or in violent
maneuvers.
Avoid high speeds on wet roads. The anti±lock brake
system cannot eliminate the risk of hydroplaning and loss
of tire friction.
Always maintain a safe distance from the vehicle in front of
you. Compared with vehicles not fitted with an anti±lock
brake system, your vehicle may require a longer stopping
distance in the following cases:
Driving on rough, gravel or snow±covered roads.
Driving with tire chains installed.
Driving on roads where the road surface is pitted or has
other differences in surface height.