2003 LEXUS LS430 replacement

3. With the brake pedal depressed, push the cruise control main switch to RES/ACC 3 times within 3
seconds. Check that the VSC buzzer sounds at this time.
REPLACEMENT
1.SEPARATE BATTERY NEGATIVE TERMINAL
2.REMOVE ENGINE UNDER COVER NO. 1 (See REPLACEMENT
)
3.REMOVE FRONT WHEEL OPENING EXTENSION PAD LH (See REPLACEMENT
)
4.REMOVE FRONT FENDER LINER LH (See REPLACEMENT
)
5.REMOVE FRONT WHEEL OPENING EXTENSION PAD RH (See REPLACEMENT
)
6.REMOVE FRONT FENDER LINER RH (See REPLACEMENT
)
7.REMOVE FRONT BUMPER COVER (See step 5 in REPLACEMENT
)
8.REMOVE FRONT BUMPER REINFORCEMENT SUB-ASSY (See step 9 in REPLACEMENT
)
9.REMOVE LASER SENSOR
a. Disconnect the connector and remove the laser sensor.

Fig. 2: Removing Laser Sensor
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
10.INSTALL LASER SENSOR
11.INSTALL FRONT BUMPER REINFORCEMENT SUB-ASSY (See step 25 in REPLACEMENT
)
12.ADJUST FOG LIGHT AIM (See ADJUSTMENT
)
13.CHECK FOG LIGHT AIM
14.ADJUST LASER SENSOR (See ADJUSTMENT
)
ADJUSTMENT

REPLACEMENT
1.SEPARATE BATTERY NEGATIVE TERMINAL
2.REMOVE MILLIMETER WAVE RADAR SENSOR ASSY
a. Disconnect the connector.
b. Remove the 3 bolts and millimeter wave radar sensor.
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5c[

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
3.INSTALL MILLIMETER WAVE RADAR SENSOR ASSY
a. Install the millimeter wave radar sensor with the 3 bolts.
Torque: 5.5 N.m (56 kgf.cm, 49 in.lbf)
b. Connect the connector.
4.ADJUST MILLIMETER WAVE RADAR SENSOR ASSY (See ADJUSTMENT
)
ADJUSTMENT

Fig. 41: Result Description Chart
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
REPLACEMENT
1.SEPARATE BATTERY NEGATIVE TERMINAL
2.REMOVE SWITCH & VOLUME CASE
3.REMOVE STEERING WHEEL COVER LOWER NO. 2
4.REMOVE HORN BUTTON ASSY (See step 5 in REPLACEMENT
)
5.REMOVE STEERING WHEEL ASSY (See step 7 in OVERHAUL
)
6.REMOVE CRUISE CONTROL MAIN SWITCH ASSY
a. Remove the 2 screws and steering wheel damper.
Fig. 42: Removing Steering Wheel Damper

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Disconnect the connectors.
c. Remove screw (A) and disengage the claw.

Fig. 44: Removing Cruise Control Main Switch Assy
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
7.INSPECT STEERING WHEEL CENTER POINT
8.INSTALL STEERING WHEEL ASSY (See step 96 in OVERHAUL
)
9.INSTALL HORN BUTTON ASSY (See step 6 in REPLACEMENT
)
10.CONNECT BATTERY NEGATIVE TERMINAL
11.INSPECT HORN BUTTON ASSY
12.INSPECT SRS WARNING LIGHT

Fig. 1: Identifying Defogger System Components And Replacements Location
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c. Check the oil level.
d. Using a hexagon wrench (10 mm), install the rear differential filler plug with a new gasket.
Torque: 49 N.m (500 kgf.cm, 36 ft.lbf)
REPLACEMENT
HINT:
See COMPONENTS
Use the same procedures for the RH side and LH side.
1.REMOVE REAR WHEEL
2.REMOVE REAR DIFFERENTIAL FILLER PLUG
a. Using a hexagon wrench (10 mm), remove the filler plug and gasket.
3.REMOVE REAR DIFFERENTIAL DRAIN PLUG
a. Using a hexagon wrench (10 mm), remove the drain plug and gasket.
b. Drain the differential oil.
4.REMOVE REAR DRIVE SHAFT ASSY LH (SEE REPLACEMENT
)
5.REMOVE REAR DIFFERENTIAL SIDE GEAR SHAFT OIL SEAL
a. Using SST, remove the oil seal.
SST 09308-10010

Fig. 6: Installing Rear Differential Side Gear Shaft Oil Seal
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
7.INSTALL REAR DRIVE SHAFT ASSY LH (SEE REPLACEMENT
)
8.INSTALL REAR DIFFERENTIAL DRAIN PLUG
a. Using a hexagon wrench (10 mm), install the drain plug with a new gasket.
Torque: 49 N.m (500 kgf.cm, 36 ft.)
9.ADD DIFFERENTIAL OIL
a. Fill the rear differential carrier assy with differential gear oil.
Oil type: Differential synthetic gear oil GL-5 75W-90 or equivalent.
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570056000f0003001400110014001c0003000e001200100003[0.04 Imp. qts)
10.INSPECT DIFFERENTIAL OIL (SEE ADJUSTMENT
)
11.INSTALL REAR DIFFERENTIAL FILLER PLUG
a. Using a hexagon wrench (10 mm), install the filler plug with a new gasket.
Torque: 49 N.m (500 kgf.cm, 36 ft.lbf)
12.STABILIZE SUSPENSION (SEE ADJUSTMENT
)
13.INSPECT AND ADJUST REAR WHEEL ALIGNMENT (SEE ADJUSTMENT
)
14.CHECK ABS SPEED SENSOR SIGNAL (SEE TEST MODE PROCEDURE
)