Engine control TOYOTA CAMRY 1997 User Guide

81
The cruise control allows you to cruise
the vehicle at a desired speed over 40
km/h (25 mph) even with your foot off
the accelerator pedal.
Your cruising speed can be maintained up
or down grades within the limits of engine
performance, although a slight speed
change may occur when driving up or
down the grades. On steeper hills, a
greater speed change will occur so it is
better to drive without the cruise control.

To help maintain maximum con-
trol of your vehicle, do not use the
cruise control when driving in
heavy or varying traffic, or in slip-
pery (rainy, icy or snow-covered)
or winding roads.

Avoid vehicle speed increases
when driving downhill. If the ve-
hicle speed is too fast in relation to
the cruise control set speed, can-
cel the cruise control then down-
shift the transmission to use en-
gine braking to slow down.CAUTION
!TURNING ON THE SYSTEM
To operate the cruise control, push the
CRUISE ON-OFFº switch. This turns the
system on. The indicator light in the instru-
ment panel shows that you can now set
the vehicle at a desired cruising speed.
Another push will turn the system com-
pletely off.
To avoid accidental cruise control
engagement, keep the CRUISE
ON-OFFº switch off when not using
the cruise control.CAUTION
!
SETTING AT A DESIRED SPEED
On vehicles with automatic transmission,
the transmission must be in Dº before
you set the cruise control speed.
Bring your vehicle to the desired speed,
push the lever down in the SET/COASTº
direction and release it. This sets the ve-
hicle at that speed. If the speed is not sat-
isfactory, tap it down for a slower speed.
Each tap changes the set speed by 1.6
km/h (1.0 mph). You can now take your
foot off the accelerator pedal.
Cruise control
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82
If you need acceleration Ð for example,
when passingÐdepress the accelerator
pedal enough for the vehicle to exceed the
set speed. When you release it, the ve-
hicle will return to the speed set prior to the
acceleration.
For manual transmission:
While driving with the cruise control
on, do not shift to neutral without
depressing the clutch pedal, as this
may cause engine racing or overrev-
ing.CAUTION
!
CANCELLING THE PRESET SPEED
You can cancel the preset speed by:
a. Pulling the lever in the CANCELº di-
rection and releasing it.
b. Depressing the brake pedal.
c. Depressing the clutch pedal (manual
transmission).
If the vehicle speed falls below about 40
km/h (25 mph), the preset speed will auto-
matically cancel out.
If the vehicle speed drops 16 km/h (10
mph) below the preset speed, the preset
speed will also automatically cancel out.If the preset speed automatically cancels
out other than for the above cases have
your vehicle checked by your Toyota deal-
er at the earliest opportunity.
RESETTING AT A FASTER SPEED
Push the lever up in the RES/ACCº direc-
tion and hold it. Release the lever when
the desired speed is attained. While the
lever is held up, the vehicle will gradually
gain speed.
However, a faster way to reset is to accel-
erate the vehicle and then push the lever
down in the SET/COASTº direction.
RESETTING AT A SLOWER SPEED
Push the lever down in the SET/COASTº
direction and hold it. Release the lever
when the desired speed is attained. While
the lever is held down, the vehicle speed
will gradually decrease.
However, a faster way to reset is to de-
press the brake pedal and then push the
lever down in the SET/COASTº direction.
On vehicles with automatic transmission,
even if you turn off the overdrive switch
with the cruise control on, engine braking
will not be applied because the cruise con-
trol is not cancelled. To decrease the ve-
hicle speed, reset to a slower speed withthe 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 or clutch pedal, pushing the
lever up in the RES/ACCº direction will
restore the speed set prior to cancellation.
However, once the vehicle speed falls be-
low about 40 km/h (25 mph), the preset
speed will not be resumed.
CRUISE CONTROL FAILURE WARN-
ING
If the CRUISEº indicator light in the in-
strument cluster flashes when using the
cruise control, press the CRUISE ON-
OFFº button to turn the system off and
then press it again to turn it on.
If any of the following conditions then oc-
curs, there is some trouble in the cruise
control system.
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127
AUTOMATIC TRACTION CONTROL
SYSTEM
The traction control system automati-
cally controls spinning of the front
wheels which may occur when accel-
erating on slippery road surfaces, thus
assisting driver control and driving
power to the front wheels. When you
turn the ignition switch on, the trac-
tion control system always turns on
automatically, and the slip indicator/
warning light will come on. the indica-
tor lights will go off after about 3 sec-
onds.
Leave the system on during ordinary
driving so that it can operate when
needed. When traction control is ap-
plied, the slip indicator light blinks.
You may hear a slight clicking noise in the
engine compartment when the engine is
started. This means that the traction con-
trol system is in the self-check mode.,
and does not indicate malfunction. When
the traction control system is operating,
you may feel vibration of your vehicle,
caused by operation of brakes. This indi-
cates the system is functioning properly.When getting the vehicle out of mud or
new snow, etc. the traction control system
will operate to prevent the wheels from
spinning. Even though the accelerator
pedal is fully depressed, the engine speed
will be restrained to a certain level.
MANUAL OPERATION
You can turn off the traction control
system by pushing the TRAC OFFº
switch. The TRAC OFFº indicator/
warning light will come on. Pushing
the TRAC OFFº switch a second time
turns on the traction control system
and the TRAC OFFº indicator/warn-
ing light will go off.
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Part 2Break-in period
Fuel
129
INFORMATION
BEFORE DRIVING
YOUR TOYOTA

Break-in period

Fuel

Operation in foreign countries

Three-way catalytic converter

Engine exhaust cautions

Facts about engine oil consumption

Twin ground electrode spark plugs

Brake system

Brake pad wear limit indicators

Luggage stowage precautions

Your Toyota's idenitification

Theft prevention labels

Suspension and chassis

Types of tiresDrive gently and avoid high speeds.
Your vehicle does not need an elaborate
break-in. But following a few simple tips
for the first 1600 km (1000 miles) can add
to the future economy and long life of your
vehicle:

Do not drive over 88 km/h (55 mph).

Run the engine at moderate speed be-
tween 2000 and 4000 rpm.

Avoid full-throttle starts.

Try to avoid hard stops during the first
300 km (200 miles).

Do not drive slowly with the manual
transmission in a high gear.

Do not drive for a long time at any
single speed, either fast or slow.

Do not tow a trailer during the first 800
km (500 miles)FUEL TYPE
Your new vehicle must use only un-
leaded gasoline.
To help prevent gas station mixups, your
Toyota has a new smaller fuel tank opening.
The special nozzle on pumps with unleaded
fuel will fit it, but the larger standard nozzle
on pumps with leaded gas will not.
Do not use leaded gasoline. Use of
leaded gasoline will cause the
three-way catalytic converter to
lose its effectiveness and the emis-
sion control system to function im-
properly. Also, this can increase
maintenance costs.
NOTICE
OCTANE NUMBER
5S-FE engine: Select Research Octane
Number 91 (Octane Rating 87) or higher.
1MZ-FE engine: Select Research Oc-
tane Number 91 (Octane Rating 87) or
higher. For improved vehicle perfor-
mance, the use of premium unleaded
gasoline with a research Octane Num-
ber of 96 (Octane Rating 91) or higer is
recommended.
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131
If you plan to drive your Toyota in
another country...
First, comply with the vehicle registration
laws.
Second, confirm the availability of the
correct fuel (unleaded and minimum oc-
tane number).
Type A
Type BThe three-way catalytic converter is
an emission control device installed in
the exhaust system.
The purpose is to reduce pollutants in the
exhaust gas.
CAUTION!

Keep people and combustible ma-
terials away from the exhaust pipe
while the engine is running. The ex-
haust gas is very hot.

Do not drive, idle or park your ve-
hicle over anything that might
burn easily such as grass, leaves,
paper or rags.
Three-way catalytic converter Operation in foreign countries
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132
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 min-
utes.
Avoid racing the engine.
Do not push-start or pull-start
your vehicle.
Do not turn off the ignition while
the vehicle is moving.
NOTICEKeep your engine in good running
order. Malfunctions in the engine
electrical system, electronic igni-
tion system/distributor ignition
system or fuel systems could
cause an extremely high three-
way catalytic converter tempera-
ture.
If the engine becomes difficult to
start or stalls frequently, take your
vehicle in for a check-up as soon
as possible. Remember, your To-
yota dealer knows your vehicle
and its three-way catalytic con-
verter system best.
To ensure that the three-way cata-
lytic converter and the engine
emission control system operate
properly, your vehicle must re-
ceive the periodic inspections re-
quired by the Toyota Maintenance
Schedule. For scheduled mainte-
nance information, refer to the
separate Owner's Manual Sup-
plement/Maintenance Scheduleº.
CAUTION!

Avoid inhaling the engine ex-
haust. It contains carbon monox-
ide, which is a colorless and odor-
less gas. It can cause uncon-
sciousness or even death.

Make sure the exhaust system
has no holes or loose connec-
tions. 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 paticularly
dangerous situation.

Do not remain for a long time in a
parked vehicle with the engine
running. If it is unavoidable, how-
ever, do so only in an unconfined
area and adjust the heating or
cooling system to force outside
air into the vehicle.
Engine exhaust cautions
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133

Keep the back door closed while
driving. An open or unsealed
trunklid may cause exhaust gases
to be drawn into the vehicle. If you
must drive with the trunklid open
to accommodate a large object,
close the windows, open all the
instrument panel vents and have
the heating or cooling system de-
liver fresh air into the vehicle by
turning the fan to high speed with
the air intake control lever set at
the OUTSIDE AIR position.

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 exhuast fumes in the
vehicle, drive with the windows
open and the trunk lid closed.
Have the cause immediatiely lo-
cated and corrected.FUNCTIONS OF ENGINE OIL
Engine oil has the primary functions of lubri-
cating and cooling the inside of the engine,
and plays a major role in maintaining the
engine in proper working order.
ENGINE OIL CONSUMPTION
It is normal that an engine should con-
sume some engine oil during normal
engine operation. The causes of oil
consumption in a normal engine are
as follows.

Oil is used to lubricate pistons, piston
rings and cylinders. A thin film of oil is
left on the cylinder wall when a piston
moves downwards in the cylinder.
High negative pressure generated
when the vehicle is decelerating sucks
some of this oil into the combustion
chamber. This oil as well as some part
of the oil film left on the cylinder wall is
burned by the high temperature com-
bustion gases during the combustion
process.
Oil is also used to lubricate the stems
of the intake valves. Some of this oil
is sucked into the combustion cham-
ber together with the intake air and is
burned along with the fuel. High tem-
perature exhaust gases also burn the
oil used to lubricate the exhaust valve
stems.
The amount of engine oil consumed de-
pends on the viscosity of the oil, the
quality of the oil and the conditions the
vehicle is driven under.
More oil is consumed by high- speed driving
and frequent acceleration and deceleration.
A new engine consumes more oil, since its
pistons, piston rings and cylinder walls have
not become conditioned.
When judging the amount of oil con-
sumption, note that the oil may become
diluted and make it difficult to judge the
true level accurately.
As an example, if a vehicle is used for re-
peated short trips, and consumes a normal
amount of oil, the dipstick may not show
any drop in the oil level at all, even after
1000 km (600 miles) or more. This is be-
cause the oil is gradually becoming diluted
with the fuel or moisture, making it appear
that the oil level has not changed.
Facts about engine oil
consumption
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135
CAUTION!

Do not pump the brake pedal if the
engine stalls. Each push on the
pedal uses up your vacuum re-
serve.

Even if the power assist is com-
pletely lost, the brakes will still
work. But you will have to push
the pedal hardÐmuch harder
than normal. And your braking
distance will be longer.
ANTI-LOCK BRAKE SYSTEM (with
ABSº warning light)
The anti- lock brake system is designed to
automatically help prevent lock- up of the
wheels during sudden braking or braking on
slippery road surfaces. This assists in pro-
viding directional stability and steering per -
formance of the vehicle under these cir -
cumstances.
The anti- lock brake system becomes op-
erative 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 approximate-
ly 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 ABSº 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 situation, 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 haz-
ardous road surface conditions. Although
the anti-lock brake system assists in pro-
viding 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 sys-
tem is operating, a driver cannot main-
tain 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 elimi-
nate the risk of hydroplaning and loss
of tire friction.
Always maintain a safe distance from the
vehicle in front of you. Compared with ve-
hicles 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-cov-
ered roads.

Driving with tire chains installed.

Driving on roads where the road sur-
face is pitted or has other differences
in surface height.
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142
Before starting the engine, be sure to fol-
low the instructions in (a) Before crank-
ingº.
Normal starting procedure
The multiport fuel injection system/se-
quential 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 ped-
al, crank the engine by turning the key
to STARTº. Release it when the en-
gine starts.
2. After the engine runs for about 10 sec-
onds, you are ready to drive.
If the weather is below freezing, let the en-
gine warm up for a few minutes before
driving.
If the engine stalls...
Simply restart it, using the correct proce-
dure given in normal starting.
If the engine will not start-
See If your vehicle will not startº in Part 4.
Do not crank for more than 30 sec-
onds 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.
NOTICEAlways slow down in gusty cross-
winds. This will allow you much better
control
Drive slowly onto curbs and, if pos-
sible, at a right angle. Avoid driving
onto high, sharp-edged objects and
other road hazards. Failure to do so
can lead to severe tire damage result-
ing in tire bursts.
When parking on a hill, turn the front
wheels until they touch the curb so that
the vehicle will not roll. Apply the park-
ing brake, and place the transmission
in Pº (automatic) or in first or reverse
(manual). If necessary, block the
wheels.
Washing your vehicle or driving
through deep water may get the
brakes wet. To see whether they are
wet, check that there is no traffic near
you, and then press the pedal lightly. If
you do not feel a normal braking force,
the brakes are probably wet. To dry
them, drive the vehicle cautiously
while lightly pressing the brake pedal
with the parking brake pulled. If they
still do not work safely, pull to the side
of the road and call a Toyota dealer for
assistance.
(b) Starting the engineTips for driving in various
conditions
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143
CAUTION!
Before driving off, make sure that
the parking brake if fully released
and the parking brake reminder
light is off.
Do not leave your vehicle unat-
tended while the engine is run-
ning.
Do not rest your foot on the brake
pedal while driving. It can cause
dangerous overheating, needless
wear, and poor fuel economy.
To drive down a long or steep hill,
reduce your speed and downshift.
Remember, if you ride the brakes
excessively, they may overheat
and not work properly.
Be careful when accelerating, up-
shifting, down shifting or braking
on a slippery surface. Sudden ac-
celeration or engine braking,
could cause the vehicle to spin or
skid.
Do not drive in excess of the speed
limit. Even if the legal speed limit
permits it, do not drive over 140
km/h (85 mph) unless your vehicle
has high-speed capability tires.
Driving over 140 km/h (85 mph)
may result in tire failure, loss of
control and possible injury. Be
sure to consult a tire dealer to de-
termine whether the tires on your
vehicle are high-speed capability
tires or not before driving at such
speeds.
Do not continue normal driving
when the brakes are wet. If they are
wet, your vehicle will require a lon-
ger stopping distance, and it may
pull to one side when the brakes
are applied. Also, the parking
brake will not hold the vehicle se-
curely.Make sure you have ethylene-glycol
antifreeze in the radiator.
Do not use alcohol type antifreeze.
NOTICE
Check the condition of the battery and
cables.
Cold temperatures reduce the capacity of
any battery, so it must be in top shape to
provide enough power for winter starting.
Chapter 7-3 tells you how to visually in-
spect the battery. Your Toyota dealer and
most service stations will be pleased to
check the level of charge.
Make sure the engine oil viscosity is
suitable for the cold weather.
See Chapter 7-2 for recommended vis-
cosity. Leaving a heavy summer oil in your
vehicle during winter months may cause
harder starting. If you are not sure about
which oil to use, call your Toyota dealer-
he will be pleased to help.
Keep the door locks from freezing.
Squirt lock de-icer or glycerine into the
locks to keep them from freezing. To open
a frozen lock, try heating the key before in-
serting it.
Winter drivng tips
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