clock LEXUS GS400 2000 Service Owner's Guide

SF0NO±05
B02816
B02692
30°(3)
(2)
B01951
Turn
(3)
(2)
± SFI (2JZ±GE)THROTTLE BODY
SF±37
1503 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REPLACEMENT
NOTICE:

To prevent deterioration, do not shock the throttle
position sensor and accelerator pedal position sen-
sor.

Mixing of the foreign objects may cause the gear lock-
ing, so thoroughly check that there is no stuck of any
foreign objects and clean up if any.
1. REPLACE THROTTLE POSITION SENSOR
(a) Remove the 2 set screws and throttle position sensor.
(b) Reinstall the throttle position sensor.
(1) Check that the throttle valve is under the condition
of the opener opening angle (about 3.5°).
(2) Install the sensor to the place where is at 30° ro-
tated to the right from the specified installation posi-
tion.
(3) Gradually turn sensor counterclockwise until it
touches the throttle valve shaft and temporarily
torque the 2 set screws.
(c) Adjust the throttle position sensor.
(1) Connect the throttle position sensor connector.
NOTICE:
At this time, do not connect the throttle control motor con-
nector.
(2) Connect the LEXUS hand±held tester or OBDII
scan tool to the DLC3.
(3) Turn the ignition switch ON.
NOTICE:
After turning the ignition switch ON, do not depress the ac-
celerator pedal.
(4) While reading the value of the throttle valve opening
percentage (THROTTLE POS) of the CURRENT
DATA, turn the throttle position sensor slowly to left
and set the sensor at the center value of the stan-
dard value, and then torque the screws.
Torque: 1.7 N´m (17.5 kgf´cm, 15 in.´lbf)
Standard throttle valve opening percentage:
14.8 ± 0.8 %

P10592
Ohmmeter
No Continuity
P10821
Free
LOCK
B01968
Ohmmeter
Continuity
Terminal CTerminal 50
B01969
Ohmmeter
Continuity
Terminal 50
± STARTING (2JZ±GE)STARTER
ST±9
1627 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
6. INSPECT BRUSH HOLDER
Check the brush holder insulator. Using an ohmmeter, check
that there is no continuity between the positive (+) and negative
(±) brush holders.
If there is continuity, repair or replace the brush holder.
7. INSPECT CLUTCH AND GEAR
(a) Check the gear teeth on the pinion gear, idle gear and the
clutch assembly for wear or damage.
If damaged, replace the gear or clutch assembly.
If damaged, also check the drive plate ring gear for wear or
damage.
(b) Check the clutch pinion gear.
Rotate the pinion gear counterclockwise, and check that
it turns freely. Try to rotate the pinion gear clockwise and
check that it locks.
If necessary, replace the clutch assembly.
8. INSPECT MAGNETIC SWITCH
(a) Check the pull ±in coil for open circuit.
Using an ohmmeter, check that there is continuity be-
tween terminals 50 and C.
If there is no continuity, check and replace the magnetic switch.
(b) Check the hold±in coil for open circuit.
Using an ohmmeter, check that there is continuity be-
tween terminal 50 and the switch body.
If there is no continuity, replace the magnetic switch.
9. INSPECT BEARING
Turn the bearing by hand and while apply inward force.
If resistance is felt or bearing sticks, replace the bearing.
(See page ST±10)

F02564Mark
F03676
Torx ScrewScrew Case
SR±18± STEERINGPOWER TILT AND POWER TELESCOPIC STEERING
COLUMN
2188 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
12. CENTER SPIRAL CABLE
(a) Check that the front wheels are facing straight ahead.
(b) Turn the cable counterclockwise by hand until it becomes
harder to turn the cable.
(c) Then rotate the cable clockwise about 3 turns to align the
mark.
HINT:
The cable will rotate about 3 turns to either left or right of the
center.
13. INSTALL STEERING WHEEL
(a) Align the matchmarks on the wheel and main shaft.
(b) Torque the wheel set nut.
Torque: 35 N´m (360 kgf´cm, 26 ft´lbf)
(c) Connect the connector.
14. INSTALL STEERING WHEEL PAD
NOTICE:

Make sure the wheel pad is installed to the specified
torque.

If the wheel pad has been dropped, or there are
cracks, dents or other defects in the case or connec-
tor, replace the wheel pad with a new one.

When installing the wheel pad, take care that the wir-
ings do not interfere with other parts and are not
pinched between other parts.
(a) Connect the airbag connector.
(b) Install the pad after confirming that the circumference
groove of the torx screw is caught on the screw case.
(c) Using a torx socket wrench, torque the 2 screws.
Torque: 8.8 N´m (90 kgf´cm, 78 in.´lbf)
(d) Install the steering wheel lower No.2 and No.3 covers.
15. CHECK STEERING WHEEL CENTER POINT

SR0DR±01
R06091
F02556
± STEERINGPOWER STEERING VANE PUMP (2JZ±GE)
SR±21
2191 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REMOVAL
1. REMOVE ENGINE UNDER COVER
Remove the 16 bolts.
2. REMOVE DRIVE BELT
Loosen the drive bolt tension by turning the drive belt tensioner
clockwise, and remove the belt.
3. REMOVE RETURN HOSE
Remove the clip and disconnect the hose.
4. REMOVE PRESSURE FEED TUBE
Remove the union bolt and gasket.
5. REMOVE PS VANE PUMP ASSEMBLY
(a) Disconnect the connector.
(b) Remove the 2 bolts.

SR0DV±01
F02556
F02557
Stopper
R06091
SR±28
± STEERINGPOWER STEERING VANE PUMP (2JZ±GE)
2198 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSTALLATION
1. INSTALL PS VANE PUMP ASSEMBLY
(a) Torque the 2 bolts.
Torque: 58 N´m (590 kgf´cm, 43 ft´lbf)
(b) Connect the connector.
2. CONNECT PRESSURE FEED TUBE
Torque the union bolt over a new gasket.
HINT:
Make sure that the stopper of the tube is touching the PS vane
pump body, as shown, before torquing the bolt.
Torque: 49 N´m (500 kgf´cm, 36 ft´lbf)
3. CONNECT RETURN HOSE
Connect the hose with the clip.
4. INSTALL DRIVE BELT
Loosen the drive belt tension by turning the drive belt tensioner
clockwise, and install the belt.
5. INSTALL ENGINE UNDER COVER
Tighten the 16 bolts.
6. BLEED POWER STEERING SYSTEM
(See page SR±3)

RS01Y±06
± SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
RS±1
2232 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
SRS AIRBAG
PRECAUTION
NOTICE:

The LEXUS GS 400/300 is equipped with SRS, which comprises a driver airbag, front passenger
airbag and side airbag. Failure to carry out service operations in the correct sequence could
cause the SRS to unexpectedly deploy during servicing, possibly leading to a serious accident.
Further, if a mistake is made in servicing the SRS, it is possible that the SRS may fail to operate
when required. Before performing servicing (including removal or installation of parts, inspec-
tion or replacement), be sure to read the following items carefully, then follow the correct proce-
dures described in the repair manual.

Malfunction symptoms of the SRS are difficult to confirm, so the DTCs become the most impor-
tant source of information when troubleshooting. When troubleshooting the SRS, always in-
spect the DTCs before disconnecting the battery.

Even in cases of a minor collision where the SRS does not deploy, the steering wheel pad, front
passenger airbag assembly, side airbag assembly, airbag sensor assembly, front airbag sen-
sor and side airbag sensor assembly should be inspected (See page RS±15, RS±29, RS±42
, RS±60 and RS±65).

Never use SRS parts from another vehicle. When replacing parts, replace them with new parts.

Never disassemble and repair the steering wheel pad, front passenger airbag assembly, side
airbag assembly, airbag sensor assembly, front airbag sensor or side airbag sensor assembly
in order to reuse it.

If the steering wheel pad, front passenger airbag assembly, side airbag assembly, airbag sen-
sor assembly, front airbag sensor or side airbag sensor assembly has been dropped, or if there
are cracks, dents or other defects in the case, bracket or connector, replace them with new
ones.

Use a volt/ohmmeter with high impedance (10 kW/V minimum) for troubleshooting the system's
electrical circuits.

Information labels are attached to the periphery of the SRS components. Follow the instruc-
tions on the notices.

After work on the SRS is completed, perform the SRS warning light check or SRS side airbag
warning light check (See page DI±552).

If the vehicle is equipped with a mobile communication system, refer to the precaution in the
IN section.
CAUTION:

Work must be started after 90 seconds from when 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
from disconnecting the negative (±) terminal cable of the battery, the SRS may be deployed.)

When the negative (±) terminal cable is disconnected from the battery, the memory of the clock
and audio system will be canceled. So before starting work, make a record of the contents mem-
orized in the audio memory system. When work is finished, reset the audio systems as they
were before and adjust the clock. To avoid erasing the memory in each memory system, never
use a back± up power supply from outside the vehicle.

Before repairs, remove the airbag sensor if shocks are likely to be applied to the sensor during
repairs.

Do not expose the steering wheel pad, front passenger airbag assembly, side airbag assembly,
airbag sensor assembly, front airbag sensor or side airbag sensor assembly directly to hot air
or flames.