2003 LEXUS LS430 steering wheel

a. Check the steering wheel at the straight-ahead position.
b. Remove the 2 bolts and sliding yoke from the steering intermediate shaft.
Fig. 34: Removing Bolts And Sliding Yoke

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
33.REMOVE FRONT DISC BRAKE CYLINDER ASSY RH (See OVERHAUL
)
34.REMOVE DISC BRAKE CYLINDER ASSY LH (See OVERHAUL
)
35.REMOVE FRONT SUSPENSION UPPER ARM ASSY RH (See REPLACEMENT
)
36.REMOVE FRONT SUSPENSION UPPER ARM ASSY LH (See REPLACEMENT
)
37.REMOVE PNEUMATIC FRONT RH W/ SHOCK ABSORBER CYLINDER ASSY (See
REPLACEMENT
)
38.REMOVE PNEUMATIC FRONT LH W/ SHOCK ABSORBER CYLINDER ASSY (See
REPLACEMENT
)
39.REMOVE HEIGHT CONTROL SENSOR LINK SUB-ASSY FRONT (See REPLACEMENT
)
40.REMOVE STABILIZER BRACKET FRONT (See REPLACEMENT
)
41.DISCONNECT POWER STEERING GEAR HOUSING ASSY
a. Remove the bolt, and disconnect the 2 PS oil tubes from the front frame.
b. Remove the 4 bolts, and disconnect the PS gear housing from the front frame.

140.INSTALL ENGINE UNDER COVER NO.2
141.INSTALL ENGINE UNDER COVER NO.1
142.INSTALL FRONT WHEEL
143.INSTALL AIR CLEANER ASSY
144.INSTALL INTAKE AIR CONNECTOR PIPE
145.INSTALL AIR CLEANER INLET NO.1
146.INSTALL V-BANK COVER
147.INSTALL HOOD SUB-ASSY (See ADJUSTMENT
and OVERHAUL )
148.CONNECT BATTERY NEGATIVE TERMINAL
149.ADD AUTOMATIC TRANSMISSION FLUID
150.ADD ENGINE COOLANT (See REPLACEMENT
)
151.ADD ENGINE OIL (See ON
-VEHICLE INSPECTION )
152.ADD POWER STEERING FLUID
153.BLEED POWER STEERING FLUID
154.INSPECT AUTOMATIC TRANSMISSION FLUID (See ADJUSTMENT
)
155.INSPECT ENGINE OIL LEAKS
156.CHECK FOR ENGINE COOLANT LEAKS
157.INSPECT FOR FUEL LEAKS
158.CHECK FOR EXHAUST GAS LEAKS
159.INSPECT AND ADJUST FRONT WHEEL ALIGNMENT
160.INSPECT IGNITION TIMING
161.INSPECT ENGINE IDLE SPEED
162.INSPECT CO/HC
163.ADJUST ENGINE (See INSPECTION
)
164.CHECK ABS SPEED SENSOR SIGNAL (See TEST MODE PROCEDURE
)
OVERHAUL
1.REMOVE SPARK PLUG
2.REMOVE OIL FILLER CAP SUB-ASSY
3.REMOVE CYLINDER HEAD COVER SUB-ASSY LH
a. Remove the 9 bolts, 9 seal washers, cylinder head cover and gasket.
4.REMOVE CYLINDER HEAD COVER SUB-ASSY
a. Remove the 9 bolts, 9 seal washers, c
ylinder head cover and gasket.

g. Perform the zero point calibration of yaw rate and deceleration sensor (see CALIBRATION ).
5.INSPECT WHEEL ANGLE
a. Turn the steering wheel fully left and right to measure the turning angle.
Wheel turning angle:
WHEEL TURNING ANGLE TABLE
Fig. 10: Inspecting Wheel Angle

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
If the right and left inside wheel angles differ from the specified value, check and adjust the right and left
rack end lengths.
6.INSPECT CAMBER, CASTER AND STEERING AXIS INCLINATION
Inside wheel42° 10' (42.2°)
Outside wheel: Reference36° 15' (36.3°)

a. Put the front wheel on the center of the alignment tester.
b. Set the camber-caster-kingpin gauge at the center of the axle hub.
Camber, caster and steering axis inclination:
CAMBER, CASTER AND STEERING AXIS INCLINATION TABLE
Fig. 11: Inspecting Camber, Caster And Steering Axis Inclination

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
w/o Electronic modulated air
suspensionw/ Electronic modulated air
suspension
Camber-0°05' ± 45'(-0.08° ± 0.75°-0°15' ± 45' (-0.25° ± 0.75°)
Left-right error30' (0.5°) or less30' (0.5°) or less
Caster6°45' ± 45' (6.75° ± 0.75°)7°15' ± 45'(7.25° ± 0.75°)
Left-right error30' (0.5°) or less30' (0.5°) or less
Steering axis
inclination9°00' ± 45' 9° ± 0.75°)(9.25° ± 0.75°)
Left-right error30' (0.5°) or less30' (0.5°) or less

Fig. 51: Installing Front Suspension Upper Arm Assy LH
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
9.INSTALL STEERING KNUCKLE LH
a. Install the steering knuckle LH to the upper arm assy with the castle nut.
Torque: 87 N.m (885 kgf.cm, 64 in.lbf)
b. Install a new clip on the steering knuckle.
10.INSTALL PNEUMATIC FRONT LH W/SHOCK ABSORBER CYLINDER ASSY (AIR
SUSPENSION) (See REPLACEMENT
)
11.INSTALL FRONT SHOCK ABSORBER WITH COIL SPRING (COIL SPRING) (See
REPLACEMENT
)
12.INSTALL SKID CONTROL SENSOR WIRE
13.INSTALL FRONT WHEELS
Torque: 103 N.m (1,050 kgf.cm, 76 in.lbf)
14.ADJUST VEHICLE HEIGHT (See ON
-VEHICLE INSPECTION )
15.ADJUST FRONT WHEEL ALIGNMENT (See ADJUSTMENT
)

b. Install a new cotter pin on the steering knuckle.
14.INSTALL FRONT AXLE HUB SUB-ASSY LH (See step 8 in REPLACEMENT
)
15.INSTALL FRONT DISC (See step 15 in OVERHAUL
)
16.INSTALL DISC BRAKE CYLINDER ASSY LH (See step 21 in OVERHAUL
)
17.INSTALL SKID CONTROL SENSOR WIRE (See step 11 in REPLACEMENT
)
18.INSTALL FRONT STABILIZER LINK ASSY LH (See REPLACEMENT
)
19.INSTALL FRONT WHEELS
Torque: 103 N.m (1,050 kgf.cm, 76 ft.lbf)
20.CHECK ABS SPEED SENSOR SIGNAL (See TEST MODE PROCEDURE
)
REPLACEMENT
1.REMOVE FRONT WHEELS
2.REMOVE FRONT STABILIZER LINK ASSY LH
a. Support the suspension lower arm assy with a jack using a wood block to avoid damage.
b. Remove the bolt and nut to separate the front stabilizer link assy LH.
c. Remove the nut and front stabilizer link assy LH.

Fig. 6: Inspecting Low Pitched Horn Assy
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
If the result is not as specified, replace the horn assy.
If all the check results are as specified above and the wire harness is normal, replace the horn button
switch (steering wheel pad) (see REPLACEMENT
).
REPLACEMENT
1.REMOVE LOW PITCHED HORN ASSY
a. Disconnect the connector.
b. Remove the bolt and horn.
2.REMOVE HIGH PITCHED HORN ASSY
a. Disconnect the connector.
b. Remove the bolt and horn.

HINT:
Disconnect the battery negative terminal with the steering column assy extended.
Be sure to extend the steering column, otherwise the steering column cover cannot be removed.
5.PLACE FRONT WHEELS FACING STRAIGHT AHEAD
6.REMOVE SWITCH & VOLUME CASE (SEE OVERHAUL
)
7.REMOVE STEERING WHEEL COVER LOWER NO.2 (SEE OVERHAUL
)
8.REMOVE HORN BUTTON ASSY (SEE OVERHAUL
)
9.REMOVE STEERING WHEEL ASSY (SEE OVERHAUL
)
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10.REMOVE STEERING COLUMN COVER (SEE OVERHAUL
)
11.REMOVE SPIRAL CABLE SUB-ASSY (SEE REPLACEMENT
)
12.REMOVE TURN SIGNAL SWITCH ASSY (SEE REPLACEMENT
)
13.REMOVE INSTRUMENT PANEL SAFETY PAD GARNISH SUB-ASSY
a. Using a screwdriver, disengage the upper/lower 2 claws inside the instrument panel safety pad
garnish sub-assy.
HINT:
Tape up the screwdriver tip before use.