1997 TOYOTA SUPRA power steering

R07105SSTFulcrum Length
- STEERINGPOWER STEERING GEAR
SR-51
1935 Author
: Date
:
1997 SUPRA (RM502U)
18. INSTALL 2 TURN PRESSURE TUBES
(a) Install the union seat.
(b) Using SST, install the tube.
SST 09633-00020
Torque: 24 N´m (243 kgf´cm, 18 ft´lbf)
HINT:

Use a torque wrench with a fulcrum length of 300 mm
(11.81 in.).

This torque value is effective in case that SST is parallel
to a torque wrench.
(c) Torque the union bolt over 2 new gaskets.
Torque: 34 N´m (350 kgf´cm, 25 ft´lbf)

SR14E-01
SR-52
- STEERINGPOWER STEERING GEAR
1936 Author
: Date
:
1997 SUPRA (RM502U)
INSTALLATION
1. INSTALL PS GEAR ASSEMBLY
(a) Temporarily install the 2 bolts and nuts.
(b) After installing the rack housing bracket and grommet, torque the 2 bolts and nuts.
Torque: 75 N´m (770 kgf´cm, 55 ft´lbf)
2. INSTALL RACK HOUSING BRACKET AND GROMMET
Torque the 2 bolts and nuts.
Torque: 75 N´m (770 kgf´cm, 55 ft´lbf)
3. CONNECT PPS SOLENOID CONNECTOR
4. CONNECT PRESSURE FEED TUBE
Torque the union bolt over a new gasket.
Torque: 49 N´m (500 kgf´cm, 36 ft´lbf)
5. CONNECT RETURN TUBE
Torque the union bolt over 2 new gaskets.
Torque: 49 N´m (500 kgf´cm, 36 ft´lbf)
6. CONNECT RH AND LH TIE ROD ENDS (See page SA-17)
7. CONNECT INTERMEDIATE SHAFT (See page SR-21)
8. INSTALL FR SUSPENSION MEMBER PROTECTOR
Tighten the 4 bolts.
9. INSTALL ENGINE UNDER COVER
Install the 10 bolts.
10. POSITION FRONT WHEELS FACING STRAIGHT AHEAD
HINT:
Do it with the front of the vehicle jacked up.
11. CENTER SPIRAL CABLE (See page SR-21)
12. INSTALL STEERING WHEEL
(a) Align the matchmarks on the wheel and steering column main shaft.
(b) Temporarily tighten the wheel set nut.
(c) Connect the connector.
13. BLEED POWER STEERING SYSTEM (See page SR-3)
14. CHECK STEERING WHEEL CENTER POINT
15. TORQUE STEERING WHEEL SET NUT
Torque: 35 N´m (360 kgf´cm, 26 ft´lbf)
16. INSTALL STEERING WHEEL PAD (See page SR-21)
17. CHECK FRONT WHEEL ALIGNMENT (See page SA-2)

SR14F-01
F00595
PPS Solenoid Valve
PPS ECU
PPS ECU
Heater to Register
No.5 Duct Heater to Register
No.4 Duct
Instrument Panel Box
- STEERINGPROGRESSIVE POWER STEERING (PPS)
SR-53
1937 Author
: Date
:
1997 SUPRA (RM502U)
PROGRESSIVE POWER STEERING (PPS)
LOCATION

SR14G-01
F03098
Wire Harness Side:
SR4680
21
SR4681
21 SR-54
- STEERINGPROGRESSIVE POWER STEERING (PPS)
1938 Author
: Date
:
1997 SUPRA (RM502U)
INSPECTION
1. INSPECT ECU-IG FUSE (Instrument panel J/B)
2. INSPECT PPS ECU CIRCUIT
(a) Disconnect the PPS ECU connector.
(b) Inspect the connector on wire harness side, as shown in
the illustration.
Tester connectionConditionSpecified condition
4 - Body groundIgnition switch ONBattery positive voltage
6 - Body groundIgnition switch ONContinuity
*5 - 6
Ignition switch ON.
Spin the rear wheel on one side with jacking or
lifting UP.
0 " 5 or more " 0
If the circuit is not as specified, check and replace the wire har-
ness.
*If the circuit is not as specified, inspect the speed sensor.
3. INSPECT PPS SOLENOID VALVE
(a) Disconnect the PPS solenoid connector.
(b) Measure the resistance between the terminals of the so-
lenoid 1 and 2.
Resistance: 6 - 11 W
If it is not as specified, replace the pressure control valve with
the solenoid valve.
(c) Check the PPS solenoid operation.
(1) Connect the battery positive terminal to the sole-
noid terminal 1.
(2) Connect the battery negative terminal to the sole-
noid terminal 2.
(3) Check that the solenoid makes a ºclicksº sound.
If it is faulty, replace the pressure control valve with the solenoid
valve.
NOTICE:

Do not apply voltage for more than 30 seconds to
avoid burning out the solenoid.

If repeating this step, wait until the solenoid cools
down enough that it can be touched by hand.
(d) Connect the PPS solenoid connector.

F03098
Wire Harness Side:
R07587
62
R07587
37 mph (60 km/h)
62
- STEERINGPROGRESSIVE POWER STEERING (PPS)
SR-55
1939 Author
: Date
:
1997 SUPRA (RM502U)
(e) Inspect the PPS solenoid valve circuit.
(1) Disconnect the PPS ECU connector.
(2) Check continuity between the terminals of the con-
nector on wire harness side, as shown in the illustra-
tion.
Tester connectionSpecified condition
1 - 6No continuity
2 - 6No continuity
If it is not as specified, repair or replace wire harness or connec-
tor.
(3) Connect the PPS ECU connector.
4. INSPECT PPS ECU
(a) Jack up the vehicle and support it on stands.
(b) Start the engine.
(c) Measure the voltage of ECU.
(1) Using a voltmeter, measure the voltage between
ECU terminals 2 and 6 while the engine is idling.
Standard voltage: 0.15 - 0.20 V
(2) Place the transmission in gear and while running at
about 62 mph (100 km/h), measure the voltage be-
tween ECU terminals 2 and 6.
Standard voltage:
2JZ-GE: 0.06 - 0.17 v
2JZ-GTE: 0.07 - 0.17 v
If no voltage, try another ECU for SUPRA.
(d) Lower the vehicle.

SS0D0-01
SS-62
- SERVICE SPECIFICATIONSSTEERING
219 Author
: Date
:
1997 SUPRA (RM502U)
STEERING
SERVICE DATA
POWER STEERING FLUID
Fluid level rise Maximum5 mm (0.20 in.)
Fluid pressure at idle speed with valve closed Minimum7,355 kPa (75 kgf/cm2, 1,067 psi)
STEERING WHEEL
Steering wheel freeplayMaximum30 mm (1.18 in.)
Steering effort at idle speedMaximum6.9 N´m (70 kgf´cm, 61 in.´lbf)
TILT STEERING COLUMN
Pawl stopper Mark
1 or A12.68 - 12.74 mm (0.4992 - 0.5016 in.)
2 or B12.61 - 12.67 mm (0.4965 - 0.4988 in.)
3 or C12.54 - 12.60 mm (0.4937 - 0.4961 in.)
4 or D12.47 - 12.53 mm (0.4909 - 0.4933 in.)
5 or E12.40 - 12.46 mm (0.4882 - 0.4906 in.)
6 or F12.33 - 12.39 mm (0.4854 - 0.4878 in.)
7 or G12.26 - 12.32 mm (0.4827 - 0.4850 in.)
PS VANE PUMP
Rotor shaft bushing oil clearance STD0.03 - 0.05 mm (0.0012 - 0.0020 in.)
Maximum0.07 mm (0.0028 in.)
Vane plate heightMinimum8.6 mm (0.339 in.)
Vane plate thickness Minimum1.40 mm (0.0551 in.)
Vane plate lengthMinimum14.99 mm (0.5902 in.)
Vane plate to rotor groove clearanceMaximum0.035 mm (0.00137 in.)
Vane plate length Rotor and cam ring mark
NONE14.999 - 15.001 mm (0.59051 - 0.59059 in.)
114.997 - 14.999 mm (0.59043 - 0.59051 in.)
214.995 - 14.997 mm (0.59035 - 0.59043 in.)
314.993 - 14.995 mm (0.59027 - 0.59035 in.)
414.991 - 14.993 mm (0.59020 - 0.59027 in.)
Spring free length Minimum33 mm (1.30 in.)
Vane pump rotating torqueMaximum0.2 N´m (2.5 kgf´cm, 2.2 in.´lbf)
PS GEAR
Steering rack runout Maximum0.30 mm (0.0118 in.)
Total preload1.0 - 1.9 N´m (10 - 20 kgf´cm, 8.7 - 17.4 in.´lbf)
PROGRESSIVE POWER STEERING (PPS)
Solenoid valve resistance6 - 11 W