1998 TOYOTA LAND CRUISER power steering fluid

DI-368
- DIAGNOSTICSAUTOMATIC TRANSMISSION
561 Author
: Date
:
AFSAir fuel ratio sensor
O2 sensorHeater oxygen sensor
Oxygen sensor pumping current circuitOxygen sensor output signal
Oxygen sensor reference ground circuitOxygen sensor signal ground
Accel position sensorAccelerator pedal position sensor
Throttle actuator control motor, Actuator control motor, Elec-
tronic throttle motor, Throttle control motorElectronic throttle actuator
Electronic throttle control system, Throttle actuator control
systemElectronic throttle control system
Throttle/pedal position sensor, Throttle/pedal position switch,
Throttle position sensor/switchThrottle position sensor
Turbo press sensorTurbocharger pressure sensor
Turbo VSVTurbocharger pressure control solenoid valve
P/S pressure switchPower-steering pressure switch
VSV for ACMActive control engine mount
Speed sensor, Vehicle speed sensor ºAº, Speed sensor for
skid control ECUVehicle speed sensor
ATF temperature sensor, Trans. fluid temp. sensor, ATF
temperature sensor ºAºTransmission fluid temperature sensor
Electronic controlled automatic transmission, ECTElectronically controlled automatic
Intermediate shaft speed sensor ºAºCounter gear speed sensor
Output speed sensorOutput shaft speed sensor
Input speed sensor, Input turbine speed sensor ºAº, Speed
sensor (NT), Turbine speed sensorInput turbine speed sensor
PNP switch, NSWPark/neutral position switch
Pressure control solenoidTransmission pressure control solenoid
Shift solenoidTransmission shift solenoid valve
Transmission control switch, Shift lock control unitShift lock control module
Engine immobilizer system, Immobilizer systemVehicle anti-theft system

- DIAGNOSTICSENGINE
DI-19
212 Author
: Date
:
Idle air control valveIdle speed control
VSV for CCV, Canister close valve VSV for canister controlEvaporative emissions canister vent valve
VSV for EVAP, Vacuum switching valve assembly No. 1,
EVAP VSV, Purge VSVEvaporative emissions canister purge valve
VSV for pressure switching valve, Bypass VSVEvaporative emission pressure switching valve
Vapor pressure sensor, EVAP pressure sensor, Evaporative
emission control system pressure sensorFuel tank pressure sensor
Charcoal canisterEvaporative emissions canister
ORVR systemOn-board refueling vapor recovery system
Intake manifold runner controlIntake manifold tuning system
Intake manifold runner valve, IMRV, IACV (runner valve)Intake manifold tuning valve
Intake control VSVIntake manifold tuning solenoid valve
AFSAir fuel ratio sensor
O2 sensorHeater oxygen sensor
Oxygen sensor pumping current circuitOxygen sensor output signal
Oxygen sensor reference ground circuitOxygen sensor signal ground
Accel position sensorAccelerator pedal position sensor
Throttle actuator control motor, Actuator control motor, Elec-
tronic throttle motor, Throttle control motorElectronic throttle actuator
Electronic throttle control system, Throttle actuator control
systemElectronic throttle control system
Throttle/pedal position sensor, Throttle/pedal position switch,
Throttle position sensor/switchThrottle position sensor
Turbo press sensorTurbocharger pressure sensor
Turbo VSVTurbocharger pressure control solenoid valve
P/S pressure switchPower-steering pressure switch
VSV for ACMActive control engine mount
Speed sensor, Vehicle speed sensor ºAº, Speed sensor for
skid control ECUVehicle speed sensor
ATF temperature sensor, Trans. fluid temp. sensor, ATF
temperature sensor ºAºTransmission fluid temperature sensor
Electronic controlled automatic transmission, ECTElectronically controlled automatic
Intermediate shaft speed sensor ºAºCounter gear speed sensor
Output speed sensorOutput shaft speed sensor
Input speed sensor, Input turbine speed sensor ºAº, Speed
sensor (NT), Turbine speed sensorInput turbine speed sensor
PNP switch, NSWPark/neutral position switch
Pressure control solenoidTransmission pressure control solenoid
Shift solenoidTransmission shift solenoid valve
Transmission control switch, Shift lock control unitShift lock control module
Engine immobiliser system, Immobiliser systemVehicle anti-theft system

2004 LAND CRUISER (EWD548U)
234VSC
1. ABS Operation
If the brake pedal is depressed suddenly, the ABS controls the hydraulic pressure of the wheel cylinders for all the four
wheels to automatically avoid wheel locking and ensure the directional and steering stability of the vehicle. If the brake pedal
is depressed suddenly, the ABS & BA & TRAC & VSC ECU controls the solenoids in the actuators using the signals from the
sensors to move the brake fluid to the reservoir in order to release the braking pressure applied to the wheel cylinder. If the
ABS & BA & TRAC & VSC ECU detects that the fluid pressure in the wheel cylinder is insufficient, the ECU controls the
solenoids in the actuators to increase the braking pressure.
2. Traction Control Operation
The traction control system controls the engine torque, the hydraulic pressure of the driving wheel cylinders, slipping of the
wheels which may occur at start or acceleration of the vehicle, to ensure an optimal driving power and vehicle stability
corresponding to the road conditions.
3. VSC Operation
Unexpected road conditions, vehicle speed, emergency situation, and any other external factors may cause large under- or
over-steering of the vehicle. If this occurs, the VSC system automatically controls the engine power and wheel brakes to
reduce the under- or over-steering.
To reduce large over-steering :
If the VSC system determines that the over-steering is large, it activates the brakes for the outer turning wheels depending
on the degree of the over-steering to produce the moment toward the outside of the vehicle and reduce the over-steering.
To reduce large under-steering :
If the VSC system determines that the under-steering is large, it controls the engine power and activates the rear wheel
brakes to reduce the under-steering.
VSC indicator light
If an error occurs in the VSC system, the VSC indicator lights up to warn the driver.
4. Traction Mode and VSC Function
When the center differential of the transfer is locked, the VSC function is turned off. At this time, the VSC OFF indicator light
in the combination meter will come on, and informs the driver that the VSC function is OFF.
5. Mutual System Control
To efficiently operate the VSC system at its optimal level, the VSC system and other control systems are mutually controlled
while the VSC system is being operated.
Engine throttle control
The engine power does not interfere with the VSC brake control by controlling the opening of the throttle and reducing the
engine output.
Engine control and electronically controlled transmission control
The strong braking force does not interfere with the braking force control of the VSC system by turning off the accel. and
reducing changes in the driving torque at shift-down.
VSC system operation indication
The slip indicator light flashes and the buzzer sounds intermittently to warn the driver that the current road is slippery, while
the VSC system is being operated.
6. Fail Safe Function
If an error occurs in the ABS & BA & TRAC & VSC ECU, sensor signals, and/or actuators, the ABS & BA & TRAC & VSC
ECU inhibits the brake actuator control and inputs the error signal to the engine control module. According to the error signal,
the brake actuator turns off the solenoid and the engine control module rejects any electronically controlled throttle open
request from the VSC system. As a result, the vehicle functions without the ABS, BA, TRAC, and VSC systems.
System Outline

MA02R-05
MA-4
- MAINTENANCEUNDER HOOD
52 Author
: Date
:
2004 LAND CRUISER (RM1071U)
UNDER HOOD
GENERAL MAINTENANCE
1. GENERAL NOTICE

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

Failure to do even one item can cause the engine to run poorly and increase exhaust emissions.
2. WINDSHIELD WASHER FLUID
Check that there is sufficient fluid in the tank.
3. ENGINE COOLANT LEVEL
Check that the coolant level is between the LEVEL lines on the see-through reservoir at normal tem-
perature (20°C (68°F)).
4. RADIATOR AND HOSES
(a) Check that the front of the radiator is clean and not blocked with leaves, dirt or bugs.
(See page CO-14)
(b) Check the hoses for cracks, kinks, rot or loose connections.
5. BATTERY ELECTROLYTE LEVEL

Check the indicator.

When the indicator color is blue, the condition is satisfactory. A red color indicates that distilled water
must be added, and white indicates that charging is necessary.
6. BRAKE FLUID LEVELS
Check that the brake fluid level is near the upper level line on the see-through reservoir.
(See page BR-4)
7. ENGINE DRIVE BELTS
Check drive belt for fraying, cracks, wear or oiliness.
8. ENGINE OIL LEVEL
Check the level on the dipstick with the engine turned off.
9. POWER STEERING FLUID LEVEL

Check the level on the dipstick.

The level should be in the ºHOTº or ºCOLDº range depending on the fluid temperature.
10. AUTOMATIC TRANSMISSION FLUID LEVEL
Visually check the overflow plug and oil pan for fluid leaks or traces of fluid.

PP1B8-04
PP-64
- PREPARATIONSTEERING
123 Author
: Date
:
2004 LAND CRUISER (RM1071U)
LUBRICANT
ItemCapacityClassification
Power steering fluid
Total0.8 liters (0.9 US qts, 0.7 lmp.qts)ATF DEXRON® II or III

PP3X9-01
PP-58
- PREPARATIONSTEERING
11 7 Author
: Date
:
2004 LAND CRUISER (RM1071U)
STEERING
SST (Special Service Tools)
09023-38200Union Nut Wrench 12mmPOWER STEERING GEAR
09023-38400Union Nut Wrench 14mmPOWER STEERING GEAR
09612-2201 1Tilt Handle Bearing ReplacerTILT STEERING COLUMN
09616-0001 1Steering Worm Bearing Adjusting
SocketPOWER STEERING GEAR
09630-00014Power Steering Gear Housing
Overhaul Tool SetPOWER STEERING GEAR
POWER STEERING VANE PUMP
(09631-00132)Vane Pump BracketPOWER STEERING VANE PUMP
(09631-00142)Overhaul StandPOWER STEERING GEAR
09631-00350Steering Rack Cover 35POWER STEERING GEAR
09631-12071Steering Rack Oil Seal Test ToolPOWER STEERING GEAR
09631-20060Bearing Guide Nut WrenchPOWER STEERING GEAR
09631-20081Seal Ring ToolPOWER STEERING GEAR
09640-10010Power Steering Pressure Gauge
SetPOWER STEERING FLUID

- PREPARATIONSTEERING
PP-59
11 8 Author
: Date
:
2004 LAND CRUISER (RM1071U)
(09641-01010)Gauge AssyPOWER STEERING FLUID
(09641-01030)Attachment BPOWER STEERING FLUID
(09641-01060)Attachment EPOWER STEERING FLUID
09910-00015Puller SetPOWER TILT AND POWER
TELESCOPIC STEERING COLUMN
(09911-0001 1)Puller ClampPOWER TILT AND POWER
TELESCOPIC STEERING COLUMN
(09912-00010)Puller Slide HammerPOWER TILT AND POWER
TELESCOPIC STEERING COLUMN
09922-10010Variable Open WrenchPOWER STEERING GEAR
09950-4001 1Puller B SetPOWER TILT AND POWER
TELESCOPIC STEERING COLUMN
TILT STEERING COLUMN
(09958-0401 1)HolderPOWER TILT AND POWER
TELESCOPIC STEERING COLUMN
TILT STEERING COLUMN
09950-50013Puller C SetTILT STEERING COLUMN
(09951-05010)Hanger 150TILT STEERING COLUMN
(09952-05010)Slide ArmTILT STEERING COLUMN
(09953-05020)Center Bolt 150TILT STEERING COLUMN

SS0OH-05
SS-42
- SERVICE SPECIFICATIONSSTEERING
182 Author
: Date
:
2004 LAND CRUISER (RM1071U)
STEERING
SERVICE DATA
POWER STEERING FLUID
Oil level rise MaximumBelow 5 mm (0.20 in.)
Oil pressure at idle speed with valve closed Minimum10,000 kPa (102 kgf/cm2, 1,451 psi)
STEERING WHEEL
Steering wheel freeplayMaximum40 mm (1.58 in.)
Steering effort at idle speedMaximum4.9 N´m (50 kgf´cm, 43 in.´lbf)
PS VANE PUMP
Pump shaft and front housing bushing oil clearance STD0.021 - 0.043 mm (0.00083 - 0.00169 in.)
Maximum0.070 mm (0.00276 in.)
Pump shaft and rear housing bushing oil clearance STD0.020 - 0.077 mm (0.00079 - 0.00303 in.)
Maximum0.080 mm (0.00315 in.)
Vane plate thickness Minimum1.405 mm (0.0531 in.)
Vane plate and pump rotor groove clearanceMaximum0.03 mm (0.0012 in.)
Flow control valve spring length Minimum31.3 mm (1.2323 in.)
Pump rotating torqueMaximum0.28 N´m (2.8 kgf´cm, 2.4 in.´lbf) or less
PS GEAR
Steering rack runout Maximum0.03 mm (0.0118 in.)
Total preload Center area1.8 - 2.2 N´m (18.4 - 22.4 kgf´cm, 16.0 - 19.5 in.´lbf)
End area1.3 - 1.7 N´m (13.3 - 17.3 kgf´cm, 11.5 - 15.0 in.´lbf)