1995 TOYOTA SUPRA Service Repair Manual

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Page 1681 of 2543

TOYOTA SUPRA 1995 Service Repair Manual PPS ECU INSPECTION
1. JACK UP VEHICLE AND SUPPORT IT ON STANDS
2. START ENGINE
3. MEASURE VOLTAGE OF ECU
(a) Using a voltmeter, measure the voltage between ECU
terminals SOL and GND while the eng

Page 1682 of 2543

TOYOTA SUPRA 1995 Service Repair Manual SERVICE SPECIFICATIONS
SERVICE DATA
Steering wheel freeplay Maximum 30 mm (1.18

SERVICE SPECIFICATIONS
SERVICE DATA
Steering wheel freeplay Maximum 30 mm (1.18 in.)
STEERING COLUMN
Pawl stopper Mark
1 or A 12.68±12.74 mm (0.4992±0.5016 in.)
2 or B 12.61±12.67 mm (0.4965±0.4988 in.)
3 or C 12.54±12.60 mm (0.4937±0.4961 in.)
4 or D 12.47±12.53 mm (0.4909±0.4933 in.) 5 or E 12.40±12.46 mm (0.4882±0.4906 in.) 6 or F 12.33±12.39 mm (0.4854±0.4878 in.)
7 or G

12.26±12.32 mm (0.4827±0.4850 in.)
PS ON±VEHICLE INSPECTION

Maximum rise of oil level Below 5 mm (0.20 in.)
Oil pressure at idle speed with valve closed Minimum 7,845 kPa (80 kgf/cm2, 1,140 psi)
Steering effort at idle speed Maximum 0.4 NVm (3.6 kgfVcm, 3.1 in.Vlbf)
PS VANE PUMP
Rotor shaft bushing oil clearance STD 0.03±0.05 mm (0.0012±0.0020 in.)
Rotor shaft bushing oil clearance Maximum 0.07 mm (0.0028 in.)
Vane plate to rotor groove clearance Maximum 0.03 mm (0.0012 in.) Vane plate height Minimum 8.6 mm (0.339 in.) Vane plate thickness Minimum 1.40 mm (0.0551 in.)
Vane plate length Minimum

14.99 mm (0.5902 in.)
Vane plate length Rotor and cam ring mark
NONE 14.999±15.001 mm (0.59051±0.59059 in.)
1 14.997±14.999 mm (0.59043±0.59051 in.)
2 14.995±14.997 mm (0.59035±0.59043 in.)
3 14.993±14.995 mm (0.59027±0.59035 in.)
4 14.991±14.993 mm (0.59020±0.59027 in.)
Flow control spring length Minimum 33 mm (1.30 in.)
Pump rotating torque 0.2 NVm (2.5 kgfVcm, 2.2 in.Vlbf) or less PS GEAR HOUSING
Steering rack runout Maximum 0.30 mm (0.0118 in.)
Total preload

1.0±1.9 NVm (10±20 kgfVcm, 8.7±17.4 in.Vlbf)
Solenoid valve resistance 6±11
± STEERINGSERVICE SPECIFICATIONSSR±51

Page 1683 of 2543

TOYOTA SUPRA 1995 Service Repair Manual TORQUE SPECIFICATIONS
Part tightened NVm kgfVcm ftVlbf
STEERING COLUMN

TORQUE SPECIFICATIONS
Part tightened NVm kgfVcm ftVlbf
STEERING COLUMN
Steering wheel set nut 35 360 26 Steering wheel pad set screw 7.1 72 62 in.Vlbf Column assembly set nut 25 260 19
Intermediate shaft x Sliding yoke

35

360

26
Tilt memory bolt x Square nut

6.4

65

56 in.Vlbf
Tilt lever assembly set screw 4.7 48 42 in.Vlbf
Tilt pawl set nut 5.9 60 52 in.Vlbf
Tilt lever retainer set nut 15 150 11
Tilt memory bolt set nut 5.9 60 52 in.Vlbf
Turn signal bracket set bolt 8.8 90 78 in.Vlbf
Sliding yoke 35 360 26
Compression set screw 6.4 65 56 in.Vlbf PS VANE PUMP
PS vane pump set bolt 58 590 42
Union bolt

49

500

36
Vane pump pulley set nut 43 440 32
Front housing x Rear housing 17 170 12
Pressure port union 83 850 61
Oil reservoir set bolt (2JZ±GE) Front side bolt 13 130 9
Rear side bolts 17 170 12
Suction port union set bolt (2JZ±GTE) 13 130 9
PS GEAR HOUSING
Tie rod end x Steering knuckle 49 500 36 Control valve shaft x Intermediate shaft 35 360 26 Pressure feed and return tube set union bolts 49 500 36
Gear housing set bolt and nut

75

770

55
Pressure control valve assembly x Control valve housing 18 185 13
Control valve housing set bolt 18 185 13
Self±locking nut 39 400 29
Rack housing cap 69 700 501
Rack guide spring cap lock nut 56 567 41
Rack end 90 914 66
Tie rod end lock nut 56 570 41 Turn pressure tube union nut 24 243 17 Turn pressure tube union bolt 34 350 25
SR±52± STEERINGSERVICE SPECIFICATIONS

Page 1684 of 2543

TOYOTA SUPRA 1995 Service Repair Manual SUPPLEMENTAL RESTRAINT SYSTEM
RS±1

Page 1685 of 2543

TOYOTA SUPRA 1995 Service Repair Manual GENERAL DESCRIPTION
The SUPRA is equipped with an SRS (Supplemental Restraint System), which comprises a driver
airbag, and front passenger airbag if fitted. Failure to carry out service operations in

GENERAL DESCRIPTION
The SUPRA is equipped with an SRS (Supplemental Restraint System), which comprises a driver
airbag, and front passenger airbag if fitted. Failure to carry out service operations in the correct
sequence could cause the SRS to unexpectedly deploy during servicing, possibly leading to a seri-
ous accident. Further, if a mistake is made in servicing the SRS, it is possible the SRS may fail to
operate when required. Before performing servicing (including removal or installation of parts, in-
spection or replacement), be sure to read the following items carefully, then follow the correct pro-
cedure described in the repair manual.
1. Malfunction symptoms of the SRS are difficult to confirm, so the diagnostic trouble codes become the most
important source of information when troubleshooting. When troubleshooting the SRS, always inspect the
diagnostic trouble codes before disconnecting the battery.
(See page RS±44)
2. Work must be started after 90 seconds from the time the ignition switch is turned to the ºLOCKº
position and the negative (±) terminal cable is disconnected from the battery.
(The SRS is equipped with a back±up power source so that if work is started within 90 seconds of
disconnecting the negative (±) terminal cable from the battery, the SRS may deploy.)
When the negative (±) terminal cable is disconnected from the battery, memory of the clock and audio sys-
tems will be canceled. So before starting work, make a record of the contents memorized by the audio
memory system. When work is finished, reset the audio systems as before and adjust the clock. To avoid
erasing the memory of each memory system, never use a back±up power supply from outside the vehicle.
3. Even in cases of a minor collision where the SRS does not deploy, the steering wheel pad, front passenger
airbag assembly, front airbag sensors and center airbag sensor assembly should be inspected.
(See pages RS±10, 20, 30, and 33)
4. Never use SRS parts from another vehicle. When replacing parts, replace them with new parts.
5. Before repairs, remove the airbag sensors if shocks are likely to be applied to the sensors during repairs.
6. Never disassemble and repair the steering wheel pad, front passenger airbag assembly, front airbag
sensors or center airbag sensor assembly in order to reuse it.
7. If the steering wheel pad, front passenger airbag assembly, front airbag sensors or center airbag sensor
assembly have been dropped, or if there are cracks, dents or other defects in the case, bracket or
connector, replace them with new ones.
8. Do not expose the steering wheel pad, front passenger airbag assembly, front airbag sensors or center
airbag sensor assembly directly to hot air or flames.
9. Use a volt/ohmmeter with high impedance (10 k/V minimum) for troubleshooting the system's electrical
circuits.
10. Information labels are attached to the periphery of the SRS components. Follow the instructions on the
notices.
11. After work on the SRS is completed, check the SRS warning light.
(See page RS±44)
12. If the vehicle is equipped with a mobile communication system, refer to the precaution in the IN section. RS±2
± SUPPLEMENTAL RESTRAINT SYSTEMGENERAL DESCRIPTION

Page 1686 of 2543

TOYOTA SUPRA 1995 Service Repair Manual DESCRIPTION
This vehicle is equipped with an SRS (Supplemental Re-
straint System) which comprises a driver airbag, and front
passenger airbag if fitted. Where fitted, it is designed to be of
benefit

Page 1687 of 2543

TOYOTA SUPRA 1995 Service Repair Manual OPERATION
FUNCTION OF COMPONENTS
1. STEERING WHEEL PAD (with AIRBAG)
The inflater and bag of the SRS are stored in the steering
wheel pad and cannot be disassembled. The inflater con-
tains a squib,

Page 1688 of 2543

TOYOTA SUPRA 1995 Service Repair Manual 6. CENTER AIRBAG SENSOR ASSEMBLY
The center airbag sensor assembly is mounted on the floor
inside the console box. The center airbag sensor assembly
consists of a center airbag sensor, safing sensor,

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