1995 TOYOTA SUPRA Service Repair Manual

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TOYOTA SUPRA 1995  Service Repair Manual POWER STEERING GEAR ASSEMBLY
NOTICE: When using a vise, do not overtighten it.
1.  COAT WITH POWER STEERING FLUID OR
MOLYBDENUM DISULPHIDE LITHIUM BASE GREASE
(See page SR±34 and SA±35)
2.  INSTALL

Page 1674 of 2543

TOYOTA SUPRA 1995  Service Repair Manual 6.  AIR TIGHTNESS TEST
(a)  Install SST to the unions of the rack housing.
SST 09631±12071
NOTICE: Do not install union seats.
(b) Apply 53.3 kPa (400 mmHg, 15.75 in.Hg) of vacuum for about
30 second

Page 1675 of 2543

TOYOTA SUPRA 1995  Service Repair Manual 12. ADJUST TOTAL PRELOAD
(a)  Using a hexagon wrench (24 mm), torque the rack guide
spring cap.
Torque: 25 NVm (250 kgfVcm, 18 ftVlbf)
(b)  Using a hexagon wrench (24 mm), return the cap 125
(c)  Usin

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TOYOTA SUPRA 1995  Service Repair Manual (c)  Using a brass bar and hammer, stake the washer.
NOTICE: Avoid any impact to the rack.
16.  INS TALL RH AND LH RACK BO O TS , CLAMP S AND
CLIPS
(a) Ensure that the steering rack hole is not clogge

Page 1677 of 2543

TOYOTA SUPRA 1995  Service Repair Manual 2.  INSTALL RACK HOUSING BRACKET AND GROMMET
Torque the 2 bolts and nuts.
Torque: 75 NVm (770 kgfVcm, 55 ftVlbf)
3.  CONNECT PPS SOLENOID CONNECTOR
4.  CONNECT PRESSURE FEED TUBE
Torque the union bolt

Page 1678 of 2543

TOYOTA SUPRA 1995  Service Repair Manual ELECTRONIC CONTROL SYSTEM
TROUBLESHOOTING FLOW±CHART
Trouble Symptom
wHard steering at idle or low±speed driving.
wSteering too sensitive during high±speed driving.
Preliminary Check
wCheck tire pr

Page 1679 of 2543

TOYOTA SUPRA 1995  Service Repair Manual Check 2.
Check that there is continuity between the ECU terminal GND and
body ground.
Open circuit in wire harness between the ECU terminal
GND and body ground.
Body ground faulty.
Check 3.
(a) Jack

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TOYOTA SUPRA 1995  Service Repair Manual 
Check 5.
Measure the resistance between terminal SOL (+) and SOL (±).
Standard resistance: 6  Ð 11 
Open circuit in wire harness between the terminals SOL (+)
and SOL (±).
Solenoid valve faul