1997 TOYOTA SUPRA change wheel

36SUPRAÐNEW FEATURES
3) ABS ECU
a. Wheel Speed Control
The ECU constantly receives signals form the 4±speed sensors and a deceleration sensor (2JZ±GTE engine model),
and estimates the speed and deceleration rate of the vehicle by calculating the speed and deceleration rate of each
wheel.
b. Initial Check
An initial check is carried out every time once after the engine has started and the initial vehicle speed exceeds 6 km/h
(4 mph).
c. Self±Diagnosis
If the ABS ECU detects a malfunction in the ABS, the ABS warning light and a master warning lights in the
combination meter will light up and alert the driver that a malfunction has occurred. The ECU will also store the codes
of the malfunctions.
 SUSPENSION
1. General
The shock absorber of the 2JZ±GTE engine model with manual transmission has been changed from the
mono±tube, gas±filled shock absorber to the twin±tube, gas±filled shock absorber, which is the same type that is
used on the 2JZ±GE engine model.
The same rubber±integrated ball bushing that is used on the 2JZ±GTE engine model is used for the upper arm
bushing of the rear suspension of the 2JZ±GE engine model.
The brace rod of the rear subframe has been relocated to realize excellent riding comfort, in addition, this provides
excellent stability, an controllability.

BR0GR-01
R07124
Z09010Z09010
R07127
BR-26
- BRAKEFRONT BRAKE PAD (2JZ-GTE)
1826 Author
: Date
:
1997 SUPRA (RM502U)
REPLACEMENT
1. REMOVE FRONT WHEEL
Remove the wheel and temporarily fasten the disc with the hub
nuts.
2. INSPECT PAD LINING THICKNESS
Check the pad thickness and replace pads if they are not within
specification.
Minimum thickness: 1.0 mm (0.039 in.)
3. REMOVE THESE PARTS
(a) Clip and 2 pins
(b) Anti-rattle spring
(c) 2 pads
(d) 2 pad spacers
(e) 2 anti-squeal shims
NOTICE:
The anti-rattle spring, clip and pad spacers can be used
again provided that they have sufficient rebound, no de-
formation, cracks or wear, and have had all rust, dirt and
foreign particles cleaned off.
4. CHECK DISC THICKNESS AND RUNOUT
(See page BR-39)
5. INSTALL NEW PADS
NOTICE:
When replacing worn pads, the anti-squeal shims must be
replaced together with the pads.
(a) Draw out a small amount of brake fluid from the reservoir.
(b) Press in the pistons with a hammer handle or equivalent.
HINT:

Always change the pads on one wheel at a time as there
is a possibility of the opposite piston flying out.

If the piston is difficult to push in, loosen the bleeder plug
and push in the piston while letting some brake fluid es-
cape.

BR0H7-01
R07147
Z09011
R07150
BR-46
- BRAKEREAR BRAKE PAD (2JZ-GTE)
1846 Author
: Date
:
1997 SUPRA (RM502U)
REPLACEMENT
1. REMOVE REAR WHEEL
Remove the wheel and temporarily fasten the disc with the hub
nuts.
2. INSPECT PAD LINING THICKNESS
Check the pad thickness and replace pads if they are not within
specification.
Minimum thickness: 1.0 mm (0.039 in.)
3. REMOVE THESE PARTS
(a) Clip and 2 pins
(b) Anti-rattle spring
(c) 2 pads
(d) 4 anti-squeal shims
NOTICE:
The anti-rattle springs and clip can be used again provided
that they have sufficient rebound, no deformation, cracks
or wear, and have had all rust, dirt and foreign particles
cleaned off.
4. CHECK DISC THICKNESS AND RUNOUT
(See page BR-57)
5. INSTALL NEW PADS
NOTICE:
When replacing worn pads, the anti-squeal shims must be
replaced together with the pads.
(a) Draw out a small amount of brake fluid from the reservoir.
(b) Press in the pistons with a hammer handle or equivalent.
HINT:

Always change the pads on one wheel at a time as there
is a possibility of the opposite piston flying out.

If the piston is difficult to push in, loosen the bleeder plug
and push in the piston while letting some brake fluid es-
cape.

BR3583
BR3582F00010
RotorSpeed Sensor
CoilNSMagnet
To ECU
Low Speed
High Speed
+V
-V
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
DI-469
697 Author
: Date
:
1997 SUPRA (RM502U)
DTC 31, 32, 33, 34 Speed Sensor Circuit
CIRCUIT DESCRIPTION
The speed sensor detects the wheel speed and sends the ap-
propriate signals to the ECU. These signals are used to control
the ABS control system. The front and rear rotors each have 48
serrations.
When the rotos rotate, the magnetic field emitted by the perma-
nent magnet in the speed sensor generates an AC voltage.
Since the frequency of this AC voltage changes in direct propor-
tion to the speed of the rotor, the frequency is used by the ECU
to detect the speed of each wheel.
DTC No.DTC Detecting ConditionTrouble Area
31,32,33,34
Detection of any of conditions (1) through (3):
(1) At vehicle speed of 10 km/h (6 mph) or more, pulses are
not input for 15 sec.
(2) Momentary interruption of the vehicle speed sensor signal
occurs at least 7 times in the time between switching the igni-
tion switch ON and switching it OFF.
(3) Abnormal fluctuation of speed sensor signals with the ve-
hicle speed 20 km/h (12 mph) or more.

Right front, left front, right rear and left rear speed sensor

Open or short in each speed sensor circuit

Sensor rotor
HINT:
DTC No.31 is for the right front speed sensor.
DTC No.32 is for the left front speed sensor.
DTC No.33 is for the right rear speed sensor.
DTC No.34 is for the left rear speed sensor.
Fail safe function:
If trouble occurs in the speed sensor circuit, the ECU cuts off current to the ABS solenoid relay and prohibits
ABS control.
DI4VE-01

- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
DI-479
707 Author
: Date
:
1997 SUPRA (RM502U)
DTC 43, 45 Malfunction is Deceleration Sensor
(SPORT ABS (2JZ-GTE Engine) only)
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
43
Either of the following (1) or (2) is detected:
(1) Input from the deceleration sensor does not change at one
cycle (0 km/h " more than 30km/h " 0 km/h) for 16 times
continuously.
(2) When the brake pedal is not depressed at vehicle speed of
5 km/h or more, forward and backward G (more than 0.4 G) is
detected for 30 seconds or more.

Deceleration sensor

Wire harness for deceleration sensor system
45
At vehicle speed of 30 km/h or more, the deceleration sensor
output and vehicle acceleration from wheel speed remain ab-
normally different for 60 seconds or more.
Deceleration sensor

Wire harness for deceleration sensor system
INSPECTION PROCEDURE
1 Check deceleration sensor (See page DI-442).
NG Replace deceleration sensor.
OK
2 Check for open or short in harness and connector between sensor and ABS ECU
(See page IN-28).
NG Repair or replace harness and connector.
OK
Check and replace ABS ECU.
DI4VG-01

BR3583
BR3582F00010
Speed Sensor
High Speed Rotor
+V
-VLow SpeedTo ECU Magnet
CoilNS
DI-538
- DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
766 Author
: Date
:
1997 SUPRA (RM502U)
DTC 61, 62, 63, 64 Speed Sensor Circuit
CIRCUIT DESCRIPTION
The speed sensor detects the wheel speed and sends the ap-
propriate signals to the ECU. These signals are used to control
both the ABS and TRAC control systems. The front and rear ro-
tors each have 48 serrations.
When the rotors rotate, the magnetic field emitted by the perma-
nent magnet in the speed sensor generates an AC voltage.
Since the frequency of this AC voltage changes in direct propor-
tion to the speed of the rotor, the frequency is used by the ECU
to detect the speed of each wheel.
DTC No.DTC Detecting ConditionTrouble Area
61,62,63,64
When the brake switch is OFF, one of the symmetrical wheels'
speed becomes one eight or less of the slowest speed of other
3 wheels continuously for 10 sec. or more.
Right front, left front, right rear and left rear speed sensor

Wire harness and connector (FRO, FLO, RRO and RLO
circuit)

Throttle control ECU
HINT:
DTC No.61 is for the right front speed sensor.
DTC No.62 is for the left front speed sensor.
DTC No.63 is for the right rear speed sensor.
DTC No.64 is for the left rear speed sensor.
DI4W6-01

MA01E-01
MA-2
- MAINTENANCEINSIDE VEHICLE
39 Author
: Date
:
1997 SUPRA (RM502U)
INSIDE VEHICLE
GENERAL MAINTENANCE
These are maintenance and inspection items which are considered to be the owner's responsibility.
They can be done by the owner or they can have them done at a service shop.
These items include those which should be checked on a daily basis, those which, in most cases, do not
require (special) tools and those which are considered to be reasonable for the owner to do.
Items and procedures for general maintenance are as follows.
1. GENERAL NOTES

Maintenance items may vary from country to country. Check the owner's manual supplement in which
the maintenance schedule is shown.

Every service item in the periodic maintenance schedule must be performed.

Periodic maintenance service must be performed according to whichever interval in the periodic main-
tenance schedule occurs first, the odometer reading (miles) or the time interval (months).

Maintenance service after the last period should be performed at the same interval as before unless
otherwise noted.

Failure to do even one item an cause the engine to run poorly and increase exhaust emissions.
2. LIGHTS
(a) Check that the headlights, stop lights, taillights, turn signal lights, and other lights are all working.
(b) Check the headlight aim.
3. WARNING LIGHTS AND BUZZERS
Check that all warning lights and buzzers function properly.
4. HORN
Check that it is working.
5. WINDSHIELD GLASS
Check for scratches, pits or abrasions.
6. WINDSHIELD WIPER AND WASHER
(a) Check operation of the wipers and washer.
(b) Check that the wipers do not streak.
7. WINDSHIELD DEFROSTER
Check that air comes out from the defroster outlet when operating the heater or air conditioner.
8. REAR VIEW MIRROR
Check that it is mounted securely.
9. SUN VISORS
Check that they move freely and are mounted securely.
10. STEERING WHEEL
Check that it has the specified freeplay. Be alert for changes in steering condition, such as hard steering,
excessive freeplay or strange noises.
11. SEATS
(a) Check that the seat adjusters operate smoothly.
(b) Check that all latches lock securely in any position.
(c) Check that the head restraints move up and down smoothly and that the locks hold securely in any
latch position.
(d) For fold-down seat backs, check that the latches lock securely.
12. SEAT BELTS
(a) Check that the seat belt system such as the buckles, retractors and anchors operate properly and
smoothly.
(b) Check that the belt webbing is not cut, frayed, worn or damaged.

F04167
SST Fulcrum
Length
R06400
SR4664
R07474
Clip
Clamp SR-50
- STEERINGPOWER STEERING GEAR
1934 Author
: Date
:
1997 SUPRA (RM502U)
(b) Using a spanner (22 mm) to hold the steering rack steady,
and using SST, torque the rack end.
SST 09922-10010
Torque: 77 N´m (782 kgf´cm, 57 ft´lbf)
NOTICE:
Use SST 09922-10010 in the direction shown in the illustra-
tion.
HINT:
Use a torque wrench with a fulcrum length of 380 mm (14.96
in.).
(c) Using a brass bar and a hammer, stake the washer.
NOTICE:
Avoid any impact to the rack.
16. INSTALL RH AND LH RACK BOOTS, CLAMPS AND
CLIPS
(a) Make sure that the steering rack hole is not clogged with
grease.
HINT:
If the hole is clogged, the pressure inside the boot will change
after it is assembled and the steering wheel turned.
(b) Install the boot.
NOTICE:
Be careful not to damage or twist the boot.
(c) Install the clamp and clip to the boot.
HINT:
When the rack guide spring cap is toward you, install the clip
and clamp in the positions shown in the illustration.
17. INSTALL RH AND LH TIE ROD ENDS AND LOCK NUTS
(a) Screw the lock nut and tie rod end onto the rack end until
the matchmarks are aligned.
(b) After adjusting toe-in, torque the nut (See page
SA-2).
Torque: 56 N´m (570 kgf´cm, 41 ft´lbf)