ECU TOYOTA SUPRA 1996 Owner's Manual

133
11. Check the air pressure of the re-
placed tire.
Adjust
the air pressure to the specification
designated in Part 8. If the pressure is
lower, drive slowly to the nearest service station and fill to the correct pressure.
Do not forget to reinstall the tire inflation valve cap as dirt and moisture could get into the valve core and possibly cause air
leakage. If the cap is missing, have a new
one put on as soon as possible. 12. Restow all the tools, jack and flat
tire securely.
As soon as possible after changing
wheels, tighten the wheel nuts to thetorque specified in Part 8 with a torque wrench, have a technician repair the flat tire and replace the spare tire with it.
Before driving, make sure all the
tools, jack and flat tire are securely in place in their storage location to
reduce the possibility of personal
injury during a collision or suddenbraking. CAUTION
!
If towing is necessary, we recommend
you to have it done by your T
oyota deal-
er or a commercial tow truck service. Proper equipment will help ensure that your vehicle is not damaged while being
towed. Commercial operators are gener-
ally aware of the state/provincial and local
laws pertaining to towing.
Your vehicle can be damaged if it is towed
incorrectly. Although most operatorsknow the correct procedure, it is possible
to make a mistake. To avoid damage to your vehicle, make sure the following few
precautions are observed. If necessary,
show this page to the tow truck driver.
TOWING PRECAUTIONS: Use a safety chain system for all towing,
and abide by the state/provincial and local
laws. The wheels and axle on the ground
must be in good condition. If they are
damaged, use a towing dolly.
(a) Using flat bed truck
Toyota recommends this as the best method for your vehicle.
If your vehicle needs to be towedÐ
ÐAfter changing wheels

134(b) Towing with wheel lift type truck From frontÐ
Manual transmission:
We recommend using a towing dollyunder the rear wheels. If you do not
use a towing dolly, release the parking brake and put the transmission in neu-tral.
Automatic transmission:Use a towing dolly under the rear wheels.
NOTICE
Never tow a vehicle with an automatic transmission from the
front with the rear wheels on the ground, as this may cause seriousdamage to the transmission.
From rearÐ Place the ignition key in the
ACCº position.
NOTICE
Do not tow with the key removed or in the LOCKº position, as the
steering lock mechanism is not strong enough to hold the frontwheels straight while towing.
(c) Towing with sling type truck
NOTICE
Do not tow with sling type truck, either from the front or rear. This
may cause body damage.
If towing service is not available in an
emergency, your vehicle may be tem-
porarily towed by a cable secured to
either emergency towing eyelet under
the front of the vehicle or the left emer-
gency towing eyelet under the rear of the vehicle. A driver must be in the vehicle to steer it and operate the brakes.
Towing in this manner may be done only
on hard-surfaced roads for a short dis-
tance and at low speeds. Also, the
wheels, axles, drive train, steering and brakes must all be in good condition.
ÐEmergency towing

144You can be confident that your Toyota
dealer's service department performs the
best
job to meet the maintenance require-
ments on your vehicleÐreliably and eco-
nomically.
Your copy of the repair order is proof that
all required maintenance has been per-
formed for warranty coverage. And if any
problems should arise with your vehicle
while under warranty, your Toyota dealer
will promptly take care of it. Again, be sure
to keep a copy of the repair order for any
service performed on your Toyota.
What about do-it-yourself mainte- nance?
Many of the maintenance items are easy
to do yourself if you have a little mechani-
cal ability and a few basic automotive
tools. Simple instructions for how to per-
form them are presented in Part 7.
If you are a skilled do-it-yourself me-
chanic, the Toyota service manuals are recommended. Please be aware that do-
it-yourself maintenance can affect your
warranty coverage. See Owner's Guide,
Owner 's Manual Supplement or W arranty
Booklet for the details. Listed
below are the general maintenance
items that should be performed as fre- quently as specified. In addition to check-
ing the items listed, if you notice any un-
usual noise, smell or vibration, you should
investigate the cause or take your vehicle
to your T oyota dealer or a qualified service
shop immediately. It is recommended thatany problem you notice be brought to theattention of your dealer or the qualified service shop for their advice.
Make these checks only where
adequate ventilation can be ob-
tained if you run the engine. CAUTION
!
OUTSIDE THE VEHICLE
Items listed below should be per-
formed from time to time, unless other-
wise specified.
Tire pressure Check the pressure with a gauge every
two weeks, or at least once a month. See Chapter 7-2 for additional information. Tire surface and wheel nuts Check the tires carefully
for cuts, damage
or excessive wear. See Chapter 7-2 for
additional information. When checking the tires, make sure no nuts are missing,
and check the nuts for looseness. T ighten
them if necessary. Fluid leaks Check underneath for leaking fuel, oil, wa-
ter or other fluid after the vehicle has been
parked for a while. If you smell fuel fumes
or notice any leak, have the cause found
and corrected immediately. Doors and engine hood
Check that all doors including back door
operate smoothly and all latches lock se-
curely. M ake sure the engine hood secon-
dary latch secures the hood from opening
when the primary latch is released. INSIDE THE VEHICLE Items listed below should be checked
regularly, e.g. while performing period-
ic services, cleaning the vehicle, etc. Lights Make sure the headlights, stop lights, tail lights, turn signal lights, and other lights are all working. Check headlight aim.
General maintenance

145
Service reminder indicators and
warn-
ing buzzers Check that all service reminder indicators
and warning buzzers function properly. Steering wheel
Be alert for changes in steering condition, such as hard steering or strange noise. Seats Check that all front seat controls such as
seat adjusters, seatback recliner, etc. op- erate smoothly and that all latches lock
securely in any position. For folding-down
rear seatback, check that the latches lock
securely. Make sure the front headrestsare firmly secured. Seat belts
Check that the seat belt system such as
buckles, retractors and anchors operate
properly and smoothly. Make sure the belt
webbing is not cut, frayed, worn or dam- aged. Accelerator pedal Check the pedal for smooth operation and
uneven pedal effort or catching. Clutch pedal Check the pedal for smooth operation. Brake pedal Check
the pedal for smooth operation and
that the pedal has the proper clearance. Check the brake booster function. Brakes
At a safe place, check that the brakes do not pull to one side when applied. Parking brake Check that the lever has the proper travel and that, on a safe incline, your vehicle is
held securely with only the parking brake applied.
Automatic transmission Parkº mech-
anismCheck the lock release button of the selec-
tor lever for proper and smooth operation.
On a safe incline, check that your vehicle is held securely with the selector lever inPº position and all brakes released.
IN THE ENGINE COMPARTMENT Items listed below should be checked
from time to time , e.g. each time when
refueling.
Washer fluid
Make sure there is sufficient fluid in the
tank. See Chapter 7-3 for additional infor-
mation.
Engine coolant level Make sure the coolant level is between
the FULLº and LOWº lines on the see-
through reservoir when the engine is cold.
See Chapter 7-2 for additional informa-tion. Battery electrolyte level Make sure the electrolyte level of all bat-
tery cells is correct. Add only distilled wa-
ter when replenishing. See Chapter 7-3
for additional information. Brake fluid level
Make sure the brake fluid level is correct. See Chapter 7-2 for additional informa- tion.
Engine oil level
Check the l
evel on the dipstick with the en-
gine turned off and the vehicle parked on
a level spot. See Chapter 7-2 for addition-
al information. Power steering fluid level Check the level on the dipstick. The level
should be in the HOTº or COLDº range
depending on the fluid temperature. See Chapter 7-2 for additional information. Exhaust system
If you notice any change in the sound of
the exhaust or smell exhaust fumes, have the cause located and corrected immedi-
ately. (See engine exhaust cautions in
Part 2.)

166
ADDING DISTILLED WATER (MAINTE-
NANCE TYPE BATTERY ONLY)
1. Remove the vent plugs.
2. Add distilled water to cells needing fluid.
If the side of your battery is covered,
check the water level by looking down di-
rectly above the cell as illustrated above.
3. Retighten the vent plugs securely.
NOTICE
Do not overfill the cells. Excess electrolyte could squirt out of the
battery during heavy charging,causing corrosion or damage.
During recharging, the battery is pro-
ducing hydrogen gas. Therefore, before recharging:
1. Maintenance type batteriesÐRemove the vent plugs.
2. If recharging with the battery installed on the vehicle, be sure to disconnect theground cable.
3. Be sure the power switch on the re-
charger is off when connecting the char-ger cables to the battery and when dis-
connecting them.
Always charge the battery in an
unconfined area. Do not charge
the battery in a garage or closed
room where there is not sufficient ventilation.
Non-maintenance batteries: Only
do a slow charge (5A or less).
Charging at a quicker rate is dan- gerous. The battery may explode,
causing personal injuries.
Maintenance type batteries: Be sure to remove the vent plugs be- fore recharging. CAUTION
!
NOTICE
Never recharge the battery while the
engine is running. Also, be sure all
accessories are turned off.
Battery recharging precautions

171
3. Turn the bulb clockwise and re- move it. Install a new bulb, turn it
counterclockwise, then plug in the
connector.
To install a bulb, align the tab of the bulb
socket with the cutouts of the mountinghole.
RIGHT SIDE HEADLIGHT: Install the air
cleaner cover securely.
Aiming is not necessary after replacing
the bulb. When aiming adjustment is nec-
essary, contact your Toyota dealer.1. Open the hood.
RIGHT SIDE HEADLIGHT: Release the
clips of the air cleaner and remove the
air cleaner cover.2. Unplug the connector while de-
pressing the lock release. If the connector is tight, wiggle it.
ÐHeadlights (high beam)

172
3. Turn the bulb counterclockwise
and remove it. Install a new bulb, turn
it clockwise, then plug in the connec-
tor.
To install a bulb, align the tab of the bulb
socket with the cutouts of the mountinghole.
RIGHT SIDE HEADLIGHT: Install the air
cleaner cover securely.
Aiming is not necessary after replacing
the bulb. When aiming adjustment is nec-
essary, contact your Toyota dealer.1. Open the hood.
RIGHT SIDE HEADLIGHT: Release the
clips of the air cleaner and remove the
air cleaner cover.2. Turn the cover counterclockwise
and remove it.
ÐFront fog lights

173
3. Disconnect the cords.4. Release the bulb retaining spring
and remove the bulb. Install a new
bulb and the bulb retaining spring.
To install the bulb, align the cutouts of the
bulb with the protrusions of the mountinghole.5. Connect the cords and install the cover by turning it clockwise.
RIGHT SIDE HEADLIGHT: Install the air
cleaner cover securely.

183
9. STOP 15 A: Stop lights, cruise control
system cancel device
10. CIG 15 A: Cigarette lighter, air condi-
tioning system, SRS airbag system, theft
deterrent system, shift lock control sys-tem
11. RAD NO.2 7.5 A: Radio, cassette
tape player, power antenna
12. TAIL 10 A: Tail lights, parking lights,
front side marker lights, rear side marker lights, licence plate lights
13. ECU-IG 10 A: Cruise control system,
anti-lock brake system, power steering,
power antenna, theft deterrent system,
shift lock control system, traction control system14. GAUGE 10 A: Gauges and meters,
service reminder indicators and warning
buzzers (except discharge and open door
warning lights), rear window defogger,
charging system, cruise control system,
electronically controlled automatic trans-mission system, traction control system
15. ECU-B 10 A: Air conditioning sys-
tem, cruise control system, anti-lock brake system, SRS airbag system, trac-tion control system
16. EFI NO.2 30 A: Multiport fuel injection
system/sequential multiport fuel injection
system17. EFI NO.1 30 A: Multiport fuel injection
system/sequential multiport fuel injection
system
18. AM2 30 A: Starter system
19. FOG 15 A: Front fog lights
20. HAZ-HORN 15 A: Emergency flash-
ers, horns
21. TRAC 7.5 A: Traction control system
22. ALT-S 7.5 A: Charging system
23. DOME 7.5 A: Interior lights, personal
lights, door courtesy lights, luggage
compartment light, ignition switch light,
open door warning light, theft deterrent
system, daytime running light system

18424. RAD NO.1 20 A:
Radio cassette tape
player
25. HEAD (RH) 15 A: Right-hand head-
light
26. HEAD (LH) 15 A: Left-hand head-
light
27. HEAD (RH-LWR) 15 A: Right-hand
headlight (low beam)
28. HEAD (LH-LWR) 15 A: Left-hand
headlight (low beam)
29. HEAD (RH-UPR) 15 A: Right-hand
headlight (high beam)
30. HEAD (LH-UPR) 15 A: Left-hand
headlight (high beam)
31. DRL 7.5 A: Daytime running light sys-
tem
32. 30 A: Spare fuse
33. 7.5 A: Spare fuse
34. 15 A: Spare fuse
35. OBD-II 7.5 A: On-board diagnosis
system
Fuses (type B)
36. DOOR 30 A: Power window, power
door lock system, theft deterrent system
37. DEFOG 30 A: Rear window defogger
Fuses (type C)
38. ALT 120 A: Charging system
39. MAIN 50 A: Starter system, head-
lights
40. HTR 50 A: Air conditioning system
41. FAN 30 A: Electric cooling fan 42. ABS NO.1 60 A:
Anti-lock brake sys-
tem, traction control system
43. AM1 50 A: Electronic ignition system/
distributor ignition system
44. AM1 60 A: Electronic ignition system/
distributor ignition system
45. POWER 60 A: PANELº, STOPº,
TAILº, ECU-B, DEFOGº and DOORº fuses