Page 137 of 1111

BE±2
± BODY ELECTRICALBODY ELECTRICAL SYSTEM
2303 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
4. MICRO COMPUTER PRESET DRIVING POSITION SYSTEM
Power Seat Control System
Power Mirror Control System
Power Tilt and Telescopic Steering System
If the battery negative (±) terminal is disconnected, the preset driving positions stored in memory are erased,
so be sure to note the positions and reset them after the battery terminal is reconnected.
5. AUDIO SYSTEM
If the negative (±) terminal cable is disconnected from the battery, the preset AM, FM 1 and FM 2 sta-
tions stored in memory are erased, so be sure to note the stations and reset them after the negative
(±) terminal cable is reconnected to the battery.
If the negative (±) terminal cable is disconnected from the battery, the ºANTI±THEFT SYSTEMº will
operate when the cable is reconnected, but the radio, tape player and CD player will not operate. Be
sure to input the correct ID number so that the radio, tape player and CD player can be operated again.
6. MOBILE COMMUNICATION SYSTEM
If the vehicle is equipped with a mobile communication system, refer to precautions in the IN section.
Page 298 of 1111

BE0FZ±08
I04195
I04196
6
I04197
BE±250
± BODY ELECTRICALHORN SYSTEM
2551 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSPECTION
1. INSPECT HORN SWITCH
(a) Disconnect the negative (±) terminal from the battery.
(b) Remove the left and right covers from the steering wheel.
(c) Using a torx socket wrench, loosen the 2 bolts.
(d) Pull up the horn pad and place it on the steering column,
as shown.
HINT:
Do not disconnect the connector from the horn pad.
(e) Disconnect the connector from the slip ring.
(f) Check that no continuity exists between terminal 6 of the
connector and body ground.
(g) Check that continuity exists between terminal 6 of the
connector and body ground when the horn contact plate
is pressed against the steering spoke assembly.
If continuity is not as specified, repair or replace the steering
wheel or wire harness as necessary.
(h) Install the horn pad in place and using a torx socket
wrench, torque the 2 bolts.
Torque:
7.1 N´m (72 kgf´cm, 62 in.´lbf)
(i) Install the left and right covers.
(j) Connect the negative (±) terminal to the battery.
2. INSPECT HORN OPERATION
Connect the positive (+) lead from the battery to the terminal
and negative (±) lead to the horn body and check that the horn
blows.
If operation is not as specified, replace the horn.
3. INSPECT HORN SWITCH CIRCUIT
(See page DI±806)
Page 317 of 1111
BE0H9±05
I04239
Switch BodyWiper and Washer Switch
Light Control Switch and
Headlight Dimmer Switch
Steering Angle Sensor
Steering Position DiscSpiral Cable
Tilt and Telescopic Switch
Compression Spring
Cancel Cam
BE±34
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
2335 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
COMPONENTS
Page 318 of 1111
I04240
BE0K2±02
I04241
I04242
I04243
I04244
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
BE±35
2336 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REMOVAL
1. REMOVE SPIRAL CABLE
Remove the 4 screws and the spiral cable.
2. REMOVE WIPER AND WASHER SWITCH
Remove the 2 screws and the wiiper and washer switch.
3. REMOVE TILT AND TELESCOPIC SWITCH
Remove a screw and the tilt and telescopic switch.
4. REMOVE STEERING ANGLE SENSOR
Disengage the 2 claws and the steering angle sensor.
5. REMOVE LIGHT CONTROL SWITCH
Remove the 2 screws and the light control switch.
Page 319 of 1111
I04245
I04246
I04247
BE±36
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
2337 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
6. REMOVE STEERING POSITION DISC
7. REMOVE CANCEL CAM
Turn the cancel cam with pressing it and pull it out.
8. REMOVE COMPRESSION SPRING
Page 441 of 1111
BR0K2±06
F02814
F02815
BR±58
± BRAKEFRONT SPEED SENSOR
2166 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REMOVAL
1. REMOVE FRONT WHEEL
Torque: 103 N´m (1,050 kgf´cm, 76 ft´lbf)
2. DISCONNECT SPEED SENSOR CONNECTOR
3. REMOVE SPEED SENSOR
(a) Remove the resin clip and 2 clamp bolts holding the sen-
sor harness to the body.
Torque: 5.0 N´m (51 kgf´cm, 44 in.´lbf)
(b) Remove the bolt and speed sensor from the steering
knuckle.
Torque: 8.0 N´m (82 kgf´cm, 71 in.´lbf)
Page 576 of 1111

A02823
A01483
A02794
A02791
A02789
Matchmark
Wire Clamp
EM±64
± ENGINE MECHANICAL (2JZ±GE)ENGINE UNIT
1418 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
14. DISCONNECT PS PUMP AND A/C COMPRESSOR
WITHOUT DISCONNECTING HOSES
(a) Disconnect the PS air hose from the No.4 timing belt cov-
er.
(b) Disconnect the PS air hose from the air intake chamber.
(c) Remove the 2 bolts and pump rear stay.
(d) Remove the 3 bolts and plate washer, and disconnect the
vane pump assembly from the engine.
(e) Loosen the nut.
(f) Using a torx socket (E10), remove the stud bolt and nut.
(g) Disconnect the PPS solenoid valve connector.
(h) Disconnect the A/C compressor connector.
(i) Remove the 2 bolts, and disconnect the compressor from
the engine.
HINT:
Put aside the vane pump and compressor, and suspend it se-
curely.
15. REMOVE PROPELLER SHAFT (See page PR±4)
16. REMOVE TRANSMISSION CONTROL ROD
Remove the 2 nuts and control rod.
17. DISCONNECT PS GEAR HOUSING
(a) Check the steering wheel at the straight±ahead position,
and place matchmarks on the sliding yoke and intermedi-
ate shaft.
(b) Remove the bolt holding the sliding yoke to the steering
intermediate shaft.
(c) Disconnect the PS pressure switch connector and wire
clamp.
Page 582 of 1111

A02796
A02752
A02789
A02791
A02792
(2)
(4)(3)
EM±70
± ENGINE MECHANICAL (2JZ±GE)ENGINE UNIT
1424 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(f) Install the 4 nuts holding the engine mounting brackets to
the front suspension crossmember.
Torque: 70 N´m (714 kgf´cm, 52 ft´lbf)
(g) Install the 2 hole plugs.
(h) Remove the engine chain hoist.
(i) Remove the bolt and No.1 engine hanger.
11. INSTALL PS GEAR HOUSING
(a) Align the matchmarks and connect the sliding yoke to the
steering intermediate shaft.
(b) Install the PS gear housing with the 4 bolts.
Torque: 65 N´m (660 kgf´cm, 48 ft´lbf)
(c) Install the bolt holding the sliding yoke to the steering in-
termediate shaft.
Torque: 35 N´m (360 kgf´cm, 26 ft´lbf)
(d) Connect the PS pressure switch and wire clamp.
12. INSTALL TRANSMISSION CONTROL ROD
Install the control rod with the 2 nuts.
Torque: 13 N´m (130 kgf´cm, 9 ft´lbf)
If the indicator is not aligned with the correct position, carry out
the following adjustment procedures.
(1) Loosen the nut on the shift lever.
(2) Push the control shaft lever fully rearward.
(3) Return the control shaft lever 2 notches to the N
position.
(4) Set the shift lever to the N position.
(5) While holding the shift lever lightly toward the R
position side, tighten the nut.
Torque: 13 N´m (130 kgf´cm, 9 ft´lbf)