air condition TOYOTA SUPRA 1996 Owners Manual

33
Do not perform any of the followingchanges without consulting your
Toyota dealer. Such changes can interfere with proper operation ofthe SRS airbag system in some cases.
Installation of electronic itemssuch as a mobile two-way radio,
cassette tape player or compactdisc player
Modification of the suspension
system
Modification of the front end struc-
ture
Attachment of a grille guard (bull bar, kangaroo bar, etc.), snow-
plow, winches or any other equip-
ment to the front end
Repairs made on or near the frontfenders, rear console, steeringcolumn, steering wheel or dash-board near the front passenger
airbag
NOTICE
This SRS airbag system has a service re-
minder indicator to inform the driver of op-
erating problems. If either of the following
conditions occurs, this indicates a mal-
function of the airbags. Contact your To-
yota dealer as soon as possible to service
the vehicle. The light does not come on when the
ignition key is turned to the ACCº or
ONº position, or remains on.
The light comes on while driving.In the following cases, contact your Toyo-
ta dealer as soon as possible: The SRS airbags have been inflated.
The front part of the vehicle (shaded in the illustration) was involved in an ac-
cident not of the extent to cause the
SRS airbags to inflate.
The pad section of the steering wheel or
front passenger airbag cover (shaded in
the illustration) is scratched, cracked, or
otherwise damaged.

50
The gauge indicates the engine cool-
ant temperature when the ignition
switch is on. The engine operating
temperature will vary with changes inweather and engine load.
If the needle points to the red zone or high-
er, stop your vehicle and allow the engine
to cool.
Your vehicle may overheat during severe operating conditions, such as: Driving up a long hill on a hot day.
Reducing speed or stopping after high
speed driving.
Idling for a long period with the air con-
ditioning on in stop-and-go traffic.
NOTICE
Do not remove the thermostat in the engine cooling system as this
may cause the engine to overheat. The thermostat is designed tocontrol the flow of coolant to keep
the temperature of the engine within the specified operatingrange.
Do not continue driving with an
overheated engine. See If yourvehicle overheatsº in Part 4.
The tachometer indicates engine speed
in thousands of rpm (revolutions per
minute). Use it while driving to select
correct shift points and to prevent en-
gine lugging and overr evving.
Driving with the engine running too fast
causes excessive engine wear and poor
fuel economy. Remember, in most cases
the slower the engine speed, the greater
the fuel economy.
NOTICE
Do not let the indicator needle get into the red zone. This may cause
severe engine damage.
Tachometer
Engine coolant temperature gauge

53
If the brake fluid level is low...
At a safe place, test your brakes by start-
ing and stopping.
If you judge that the brakes still work
adequately, drive cautiously to your nearest dealer or shop for repairs.
If the brakes are not working, have the
vehicle towed in for repairs. (For tow-ing information, see Part 4.)
It is dangerous to continue driving
normally when the brake fluid level
is low. CAUTION
!
If the brake fluid level is correct...
Have the warning system checked by
your Toyota dealer.
(c) Seat Belt Reminder Light and Buzzer
Once the ignition key is turned to ONº or
STARTº, the reminder light and buzzer
come on if the driver's seat belt is not fas-tened. Unless the driver fastens the belt,
the light stays on and the buzzer stops af-
ter about 4 to 8 seconds.
(d) Discharge Warning Light
This light warns that the battery is being discharged.
If it comes on while you are driving, there
is a problem somewhere in the charging system. The engine ignition will continue to oper-
ate, however, until the battery is dischar-
ged. Turn off the air conditioning, blower,
radio, etc., and drive directly to the near-
est Toyota dealer or repair shop.
NOTICE
Do not continue driving if the engine drive belt is broken or loose.
(e) Malfunction Indicator Lamp
This lamp comes on in the following cases.
a. The fuel tank is completely empty. (See Fuel gaugeº in Chapter 1-5 for in-structions.)
b. There is a problem somewhere in your
engine or automatic transmission electri- cal system.
If it comes on while you are driving in case
b, have your vehicle checked/repaired by
your Toyota dealer as soon as possible.
(f) Low Fuel Level Warning Light
This light comes on when the fuel level in
the tank becomes nearly empty. Fill up the
tank as soon as possible.
(g) Low Oil Pressure Warning Light
This light warns that the engine oil pres-
sure is too low. If it flickers or stays on while you are driv-
ing, pull off the road to a safe place and
stop the
engine immediately. Call a Toyota
dealer or qualified repair shop for assis- tance.
The light may occasionally flicker when
the engine is idling or it may come on brief-
ly after a hard stop. There is no cause for concern if it then goes out when the en-
gine is accelerated slightly.
The light may come on when the oil level
is extremely low. It is not designed to indi-cate low oil level, and the oil level must be checked using the level dipstick.
NOTICE
Do not drive the vehicle with the warning light onÐeven for one
block. It may ruin the engine.
(h) Low Engine Oil Level Warning Light
The light warns that the engine oil level is
too low. Add oil as soon as possible. (For instructions, see Checking the engine oil
levelº in Chapter 7-2.)
NOTICE
Continued engine operation with low engine oil will damage the
engine.

54(i) ABSº Warning Light
This light warns that there is a problem
somewhere in your anti-lock brake sys-tem.
If the light comes on while you are driving,
have your vehicle checked by your T
oyota
dealer as soon as possible.
The light will come on when the ignition key is turned to the ONº position. After
about 3 seconds, the light will go off. When the ABSº warning light is on (and
the brake system warning light is off), thebrake system operates conventionally but
without anti-lock function.
(j) Open Door Warning Light
This light remains on until both side doors
and back door are completely closed.
(k) Rear Light Failure Warning LightIf this light comes on when the headlight
switch is turned on (at the first or second
clickstop), it indicates that one or more ofthe tail lights are burned out.
If it comes on when the brake pedal is de-
pressed, one or more stop lights are
burned out or the stop light circuit is in
need of repair.
Have defective bulbs replaced as soon as
possible. (l) SRS Airbag Warning Light
This light will come on when the igni-
tion
key is turned to the ACCº or ONº
position. After about 6 seconds, the
light will go off. This means the airbag
system is operating properly.
The warning light system monitors the
front airbag sensors, center airbag sensor
assembly, inflators, warning light, inter-
connecting 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 Toyota dealer as
soon as possible to service the vehicle. The light does not come on when the
ignition key is turned to the ACCº or
ONº position or remains on.
The light comes on while driving.
(m) TRAC OFFº Indicator/Warning light
This light comes on when the ignition key
is turned to ONº, and will go off after 3
seconds. This means that the system is
operating properly. If one of the following conditions occurs, this
indicates a malfunction somewhere in
the parts monitored by the warning light
system. Contact your Toyota dealer as
soon as possible to service the vehicle. The light remains on more than 3 sec- onds after the ignition switch is turned on.
The light comes on while driving evenif the TRAC OFFº switch is not pushed.
The light flashes.
(n) Key Reminder Buzzer
This buzzer reminds you to remove the
key when you open the driver's door with the ignition key in the ACCº or LOCKº position.
CHECKING SERVICE REMINDER INDI-
CATORS (except the low fuel level
warning light)
1. Apply the parking brake.
2. Open one of the side doors or the back
door.
The open door warning light should come on.
3. Close the side door.
The open door warning light should go off.
4. Turn the ignition key to ACCº.
The SRS airbag warning light should
come on. It goes off after about 6 sec-onds.
5. Turn the ignition key to ONº, but do not
start the engine.

Part 1Car audio system operating tips
65
OPERATION OF INSTRUMENTS AND CONTROLSÐ
Chapter 1-7 Car audio system and Air conditioning system
Car audio system operating tips
AM-FM radio with electronic tuner and cassette tape player
AM-FM radio with electronic
tuner, cassette tape player and Compact Disc player
Automatic air conditioning controls
Dashboard vents
Lower vent
You can listen to the car audio system
when the ignition key is at ONº or
ACCº. However, if the engine is not
running,
the key must be in the ACCº
position.
ILLUMINATION CONTROL LOGIC When the instrument panel lights are on,
the letters on operable buttons of the
mode in current use light up. On some au-
dio-units, the mode selection and eject
buttons also light up.
On some audio-units, when a cassette tape is not in the slot, the letters on the tape mode buttons do not light up, but the
slot lights up for easy access. Once a cas-
sette tape is inserted, the letters on the
tape mode buttons light up, and the slot
stops illuminating. RADIO FM reception tips
Most of us are not aware that a vehicle is
not an ideal place to listen to a radio. Be- cause it moves, reception conditions
change continuously. Buildings, terrain,
signal distance and noise from other ve-
hicles are all working against good recep-
tion. Some FM reception conditions may appear to be problems even though they are normal.
The following characteristics are normal
for a given reception area, and they do not
indicate any problem with the radio itself.
Fading and Drifting: On the average,
the broadcast range of FM stations is limited to about 40 km (25 miles), ex-cept for some high power stations.
If a vehicle is moving away from the
desired station's transmitter, the signal
will tend to fade and/or drift. This phe-
nomenon is more noticeable with FM
than with AM, and is accompanied by distortion.
Fading and drifting can be minimized
to a certain degree by fine tuning, or
you should tune in to a stronger signal.
Static and Fluttering: When the line-
of-sight path between a transmitter
and vehicle is blocked by large build-
ings or the like, static or fluttering may
occur because of the characteristic of
FM. In a similar effect, a fluttering
noise is sometimes heard when driv-
ing along a tree-lined road.
This static and fluttering can be re-
duced by adjusting the tone control for
greater bass response until the distur-
bance has passed.

97
Automatic air conditioning controls

99
The automatic air conditioning is an air
conditioning that automatically maintains the set temperature.
This air conditioning features automatic
air intake controls, fan speed and air flow controls which automatically select the
most suitable air intake control, fan speed
and air flow to control the temperature.
You may use manual controls if you desire your own way of setting.
(A) CLIMATE CONTROL Setting operation
1. Turn the temperature control knob at the desired temperature level.
The temperature control knob is used to
set the desired passenger compartment
temperature. The tem
perature of air deliv-
ered to the passenger compartment will
be controlled automatically according to
the setting. The figures on the panel indi-
cate degrees in centigrade or Fahrenheit. 2. Press in the AUTOº button.
As the AUTOº button is pressed in, the fan turns on and operates with the most
suitable air intake control, air flow (except
pressing the FLOOR/WINDSHIELD or
WINDSHIELD button) and fan speed se-lected
automatically according to the tem-
perature. In cold weather, however, the
fan will not operate until the engine cool-
ant warms up sufficiently.
3. If any of the AUTOº button functions is not necessary for your own way of set-
ting, manual control can be made on each
of the functions, leaving the rest of the
functions in operation. Operate the con-
trols as described in Manual control on air
intake, air flow and fan speedº after the
AUTOº button is pressed in.
4. Press in the air conditioning on-off but-
ton.
The air conditioning on-off button is used
to turn on and off the air conditioning.
With the button pressed in the on mode, the air conditioning turns on.
If the system is used for ventilation or
heating in dry weather, press the air con-
ditioning on-off button once again. This
turns off the air conditioning. For year-
round automatic temperature control in-
cluding cooling and dehumidifying opera-
tion, use the air conditioning. 5. Press in the OFFº button turn off thefan speed and temperature control.
Manual control on air intake, air flow
and fan speed
If manual air intake control is de- siredÐ
The air intake control button is used to se-
lect intake air, either outside air or recircu-
lated air. With the button in the OUTSIDE
AIR mode, the OUTSIDE AIR mode indi-
cator light w
ill come on and the system will
take fresh outside air into the unit.
If quick circulation of conditioned air is de- sired, press in the air intake control button
to select the RECIRCULATED AIR mode
for recirculated air. The RECIRCULATED
AIR mode indicator light will come on.
For normal use, it is best to keep the air in-
take control button for outside air. If recir-
culated air is used during heating, the win-
dows will fog up more easily.
If manual air flow selection is de- siredÐ
The air flow outlets from which air is deliv-
ered can be selected manually by press-
ing in the appropriate air flow control but-
ton. The function of each button is as follows:
FACE buttonÐThis button directs the air flow to face level.

100BI-LEVEL buttonÐThis button directs
the air flow to face level and the floor. Ex-
cept in ventilation, the air to the floor is
slightly warmer than that to face level.
FLOOR buttonÐThis button directs the
air flow mostly to the floor.
FLOOR/WINDSHIELD buttonÐThis but- ton directs the air flow to the windshield
and front side windows as well as the floor.
WINDSHIELD buttonÐThis button di-
rects the air flow to the windshield and
front side windows.
Pressing this air flow control button turns
on the air conditioning. This is to clear up
the front view more quickly.
Pressing the air conditioning on-off but-
ton in the off mode turns off the air condi- tioning.
If you push the WINDSHIELD button once
again, it returns to the last air flow button used. Do not use the WINDSHIELD button dur-
ing cooling operation in extremely humid
weather.
The difference between the tem-
perature of the outside air and that of the windshield could cause the outer surface
of the windshield to fog up blocking yourvision. If manual fan speed control is de- siredÐ
The fan speed can be fixed at your desired
speed by turning to the appropriate posi-tion of the fan speed control knob. The
higher
the fan speed is, the more air is de-
livered.
(B) WINDSHIELD DEFOGGING AND DEFROSTING
See (A) CLIMATE CONTROLº for details
on each button or lever function.
To remove interior fog on the wind- shieldÐ
1. Turn the temperature control knob for the desired temperature level.
2. Press in the AUTOº button.
3. Set the air intake control button to the OUTSIDE AIR mode.
4. Press in the WINDSHIELD button of the air flow control buttons.
To remove frost or exterior fog on the windshieldÐ
1. Turn the temperature control knob at the maximum temperature.
2. Set the air intake control button to the OUTSIDE AIR mode.
3. Press in the WINDSHIELD button of the air flow control buttons.
4. Turn the fan speed control knob at the
HIº position. 5. Press the air conditioning on-off but- ton in the OFF mode.
(C) OPERATING TIPS
Be sure the air inlet grilles in front of the
windshield are not blocked by leaves or other obstructions.
If air flow control is not satisfactory,
check the dashboard vents. (See
Dashboard ventsº or Lower ventº.)
To help cool down the interior after
parking in the hot sun, drive for the first
few minutes with the windows open.
After the excess heat has blown away,
close the windows.
When driving on dusty roads, close all
windows. If dust thrown up by the ve-
hicle is still drawn into the vehicle after
closing the windows, it is recom-
mended that the air intake control but-ton be set in the OUTSIDE AIR mode.
If following another vehicle on a dusty
road, or driving in windy and dusty con-
ditions, it is recommended that the air
intake control button be temporarily
set to select the RECIRCULATED AIR
mode, which will close off the outside
passage and prevent outside air and
dust from entering the vehicle interior.

111
The amount of engine oil consumed
depends 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 driv-
ing and frequent acceleration and decel- eration.
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 be- come 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 nor- mal 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
because the oil is gradually becoming di-
luted with fuel or moisture, making it ap-
pear that the oil level has not changed.
The diluting ingredients evaporate out
when the vehicle is then driven at high
speeds, as on an expressway, making it appear that oil is excessively consumed
after driving at high speeds. IMPORTANCE OF ENGINE OIL LEVEL CHECK
One of the most important points in proper vehicle maintenance is to keep the engine
oil at the optimum level so that oil function
will
not be impaired. Therefore, it is essen-
tial that the oil level be checked regularly.
Toyota recommends that the oil level be checked every time you refuel the vehicle.
NOTICE
Failure to check the oil level regularly could lead to serious
engine trouble due to insufficientoil.
For detailed information on oil level check,
see Checking the engine oil levelº in Chapter 7-2. TANDEM MASTER CYLINDER BRAKE SYSTEM
The tandem master cylinder brake sys-
tem is a hydraulic system with two sepa-
rate sub-systems. If either sub-system
should fail, the other w
ill still work. Howev-
er, the pedal will be harder to press, and
your stopping distance will be longer.
Also, the brake system warning light may come on.
Do not drive your vehicle with only
a single brake system. Have your
brakes fixed immediately.
CAUTION!
BRAKE BOOSTER
The brake booster uses engine vacuum to
power-assist the brakes. If the engine
should quit while you are driving, you can
bring the vehicle to a stop with normal
pedal pressure. There is enough reservevacuum for one or two stopsÐbut no more!
Do not pump the brake pedal if the
engine stalls. Each push on the
pedal uses up your vacuum re- serve.
CAUTION!
Brake system

11 8Before 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 enginestarts.
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 startÐ
See If your vehicle will not startº in Part 4.

Do not crank for more than 15 sec-onds at a time. This may overheat
the starter and wiring systems.
Do not race a cold engine.
NOTICE
If the engine becomes difficult tostart or stalls frequently, have the
engine checked immediately.After high-speed or extended driving,
etc., requiring a heavy engine load, the
engine should be allowed to idle, as
shown in the chart, before turning it off.
Driving condition and required idling time
Normal city driving
Idling timeÐNot necessary
High-speed drivingAbout 80 km/h (50 mph)Idling timeÐAbout 20 seconds
About 100 km/h (63 mph)
Idling timeÐAbout 1 minute
Steep mountain slopes or continued driv-
ing above 100 km/h (63 mph) Idling timeÐAbout 2 minutes
Never turn the engine offimmediately after a heavy load. This
may cause severe engine damage.
NOTICE
(b) Starting the engine Precautions for turning off an
engine with turbocharger (2JZ-GTE engine)