torque LEXUS GS400 2000 Service Service Manual

AT5436
SST
AT06D±01
AT5437
Lock
Free
Q03546
AT4184
± AUTOMATIC TRANSMISSIONTORQUE CONVERTER CLUTCH AND DRIVE PLATE
AT±39
1987 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
TORQUE CONVERTER CLUTCH
AND DRIVE PLATE
INSPECTION
1. INSPECT ONE±WAY CLUTCH
(a) Install SST so that it fits in the notch of the converter hub
and outer race of the one±way clutch.
SST 09350±30020 (09351±32020)
(b) Press on the serrations of stater with a finger and rotate
it.
Check if it rotates smoothly when turned clockwise and
locks up when turned counterclockwise.
2. MEASURE DRIVE PLATE RUNOUT AND INSPECT
RING GEAR
Set up a dial indicator and measure the drive plate runout.
Maximum runout: 0.20 mm (0.0079 in.)
If runout exceeds 0.20 mm (0.0079 in.) or if the ring gear is dam-
aged, replace the drive plate. If installing a new drive plate, note
the orientation of spacers and tighten the bolts.
Torque: 83 N´m (850 kgf´cm, 61 ft´lbf)
3. MEASURE TORQUE CONVERTER CLUTCH SLEEVE
RUNOUT
(a) Temporarily mount the torque converter clutch to the drive
plate. Set up a dial indictor.
Maximum runout: 0.30 mm (0.0118 in.)
If runout exceeds 0.30 mm (0.0118 in.), try to correct by reori-
enting the installation of the torque converter clutch.
If excessive runout cannot be corrected, replace the torque
converter clutch.
HINT:
Mark the position of the torque converter clutch to ensure cor-
rect installation.
(b) Remove the torque converter clutch.

D00752
D00753
D00909
D00916
D00909
AT±6
± AUTOMATIC TRANSMISSIONATF TEMPERATURE SENSOR
1954 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
4. REMOVE OIL STRAINER
NOTICE:
Be careful as some fluid will come out of the oil strainer.
(a) Remove the 4 bolts and oil strainer.
(b) Remove the 3 gaskets from the oil strainer.
5. REMOVE SOLENOID WIRING WITH ATF TEMPERA-
TURE SENSOR
(a) Disconnect the ATF temperature sensor.
(b) Remove the bolt and clamp.
(c) Disconnect the 7 connectors from the solenoid valves.
(d) Remove the bolt and pull out the solenoid connector.
6. INSTALL SOLENOID WIRING WITH ATF TEMPERA-
TURE SENSOR
(a) Install the solenoid connector with the bolt.
Torque: 5.4 N´m (55 kgf´cm, 48 in.´lbf)
(b) Connect the 7 connectors to the solenoid valves.
(c) Install the clamp with the bolt.
Torque: 6.4 N´m (65 kgf´cm, 56 in.´lbf)
(d) Connect the ATF temperature sensor.

D00753
D00752
D00912
D01917
Seal Breadth 2 ~ 3 mm (0.08 ~ 0.12 in.)
D00910
ºAº
± AUTOMATIC TRANSMISSIONATF TEMPERATURE SENSOR
AT±7
1955 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
7. INSTALL OIL STRAINER
(a) Install 3 new gaskets.
(b) Install the oil strainer with the 4 bolts.
Torque: 10 N´m (100 kgf´cm, 7 ft´lbf)
8. INSTALL OIL PAN
(a) Install the 3 magnets in the indications of the oil pan.
(b) Remove any packing material and be careful not to drop
oil on the contacting surfaces of the transmission case
and oil pan.
(c) Apply FIPG to the oil pan.
FIPG:
Part No. 08826 ± 00090, THREE BOND 1281 or
equivalent
(d) Install the oil pan with the 19 bolts.
Torque: 7.4 N´m (75 kgf´cm, 65 in.´lbf)
HINT:
Replace the only ºAº bolt with a new one.
9. INSTALL DRAIN PLUG WITH NEW GASKET
Torque: 20 N´m (205 kgf´cm, 15 ft´lbf)
10. FILL FLUID AND CHECK FLUID
(See page DI±318)

D00911
Shift Solenoid
Valve SLN
Shift Solenoid
Valve SLTShift Solenoid
Valve S1 Shift Solenoid
Valve S3
Shift Solenoid
Valve SLU
Shift Solenoid Valve S2 Shift Solenoid Valve S4
D01741
Spring Check Ball Body
D00913
Pin
± AUTOMATIC TRANSMISSIONVALVE BODY ASSEMBLY
AT±9
1957 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
8. REMOVE SOLENOID VALVE
(a) Remove the 3 bolts and shift solenoid valve No.1, No.2
and No.3.
(b) Remove the 2 bolts, oil guide plate, lock plate, shift sole-
noid valve SLN and No.4.
(c) Remove the 6 O±rings from each shift solenoid valve.
(d) Remove the bolt, lock plate and shift solenoid valve SLU
and SLT.
9. INSTALL SOLENOID VALVE
(a) Install the shift solenoid valve SLU and SLT and the lock
plate with the bolt.
Torque: 6.4 N´m (65 kgf´cm, 56 in.´lbf)
(b) Coat 6 new O±rings with ATF.
(c) Install the 6 O±rings to the each solenoid valve.
(d) Install the shift solenoid valve SLN, No.4, lock plate and
oil guide plate with the 2 bolts.
Torque: 10 N´m (100 kgf´cm, 7 ft´lbf)
(e) Install the shift solenoid valve No.1, No.2 and No.3 with
the 3 bolts.
Torque:
Shift solenoid valve No.1 and No.3:
6.4 N´m (65 kgf´cm, 56 in.´lbf)
Shift solenoid valve No.2:
10 N´m (100 kgf´cm, 7 ft´lbf)
10. INSTALL CHECK BALL BODY AND SPRING
11. INSTALL VALVE BODY
(a) Align the groove of the manual valve to pin of the lever.

D00754
A
CB
B
B
B
C
CA
DB
AT±10
± AUTOMATIC TRANSMISSIONVALVE BODY ASSEMBLY
1958 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(b) Install the 21 bolts.
Torque: 10 N´m (100 kgf´cm, 7 ft´lbf)
Bolt length:
Bolt A: 23 mm (0.91 in.)
Bolt B: 28 mm (1.10 in.)
Bolt C: 36 mm (1.42 in.)
Bolt D: 55 mm (2.17 in.)
12. INSTALL SOLENOID WIRING WITH ATF TEMPERA-
TURE SENSOR (See page AT±5)
13. INSTALL OIL STRAINER (See page AT±5)
14. INSTALL OIL PAN (See page AT±5)
15. INSTALL DRAIN PLUG WITH NEW GASKET
Torque: 20 N´m (205 kgf´cm, 15 ft´lbf)
16. FILL FLUID AND CHECK FLUID (See page DI±318)

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)

F01619
BR0JD±03
F01620
Adjusting Nut
Lock Nut
± BRAKEPARKING BRAKE PEDAL
BR±11
2119 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
PARKING BRAKE PEDAL
ON±VEHICLE INSPECTION
1. CHECK PARKING BRAKE PEDAL TRAVEL
Depress the parking brake pedal all the way and count the num-
ber of clicks.
Parking brake lever travel at 294 N (30 kgf, 66.1 Ibf):
7 ± 9 clicks
2. IF NECESSARY, ADJUST PARKING BRAKE
HINT:
Before adjusting the parking brake, make sure that the rear
brake shoe clearance has been adjusted. For shoe clearance
adjustment see page BR±37.
(a) Loosen the lock nut and turn the adjusting nut until the
pedal travel is correct.
(b) Tighten the lock nut.
Torque: 5.4 N´m (55 kgf´cm, 48 in.´lbf)

BR0JE±03
F07241
No. 1 Safety Pad
No. 1 Under Cover
Front Door Scuff Plate End Pad
Parking Brake Switch
Parking Brake Pedal
AssemblyParking Brake WireAdjusting NutLock Nut
13 (130, 9)
5.4 (55, 48 in.´lbf)
No. 7 Heater to Register Duct
N´m (kgf´cm, ft´lbf) : Specified torque BR±12
± BRAKEPARKING BRAKE PEDAL
2120 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
COMPONENTS

BR0JF±03
± BRAKEPARKING BRAKE PEDAL
BR±13
2121 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REMOVAL
1. REMOVE FRONT DOOR SCUFF PLATE, END PAD, NO. 1 UNDER COVER, NO. 1 SAFETY PAD
AND NO. 7 HEATER TO REGISTER DUCT (See page BO±88)
2. REMOVE PARKING BRAKE PEDAL ASSEMBLY
(a) Disconnect the parking brake switch connector.
(b) Remove the 2 bolts, and disconnect the parking brake release lever from the safety pad.
Torque: 5.4 N´m (55 kgf´cm, 48 in.´lbf)
(c) Remove the lock nut and the adjusting nut from the parking brake wire.
(d) Remove the parking brake wire.
(e) Remove the 2 bolts, 2 nuts and parking brake pedal assembly.
Torque: 13 N´m (130 kgf´cm, 9 ft´lbf)
3. REMOVE PARKING BRAKE SWITCH
Remove the screw and parking brake switch from the parking brake pedal assembly.

BR0JH±05
F01622
Anti±squeal ShimPad Support Plate
Anti±squeal Spring
Inner Pad
Outer Pad
Anti±squeal Shim
Inner Anti±squeal Shim
Pad Support Plate
Inner Anti±squeal Shim34 (350, 25)
N´m (kgf´cm, ft´lbf) : Specified torque
Disc brake grease
± BRAKEFRONT BRAKE PAD
BR±15
2123 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
FRONT BRAKE PAD
COMPONENTS