2003 LEXUS LS430 Identifying ac

COMPONENTS
Fig. 102: Identifying Floor Shift Assy Components (1 Of 3)

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Fig. 103: Identifying Floor Shift Assy Components (2 Of 3)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 104: Identifying Floor Shift Assy Components (3 Of 3)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

pedal reserve distance.
b. Depress the brake pedal and start the engine. If the pedal goes down slightly, operation is normal.
If not, replace the brake booster.
Fig. 55: Identifying Brake Pedal Operation Check

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
2.AIR TIGHTNESS CHECK
a. Start the engine and stop it after 1 or 2 minutes. Depress the brake pedal several times slowly.
If the pedal can be depressed to the floor the first time, but on the 2nd or 3rd time cannot be
depressed as far, the booster is airtight.
If not, replace the brake booster.
b. Depress the brake pedal while the engine is running, and stop the engine with the pedal depressed.
If there is no change in the pedal reserve travel after the pedal is held for 30 seconds, the booster is
air tight.
If not, replace the brake booster.

Fig. 56: Identifying Air Tightness Check
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3.INSPECT VACUUM CHECK VALVE
a. Check that there is ventilation from the booster to engine, and no ventilation from the engine to the
booster.
b.If any fault is found, replace the vacuum check valve.

Fig. 81: Identifying Matchmarks On Front Disc And Axle Hub
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15.INSTALL FRONT DISC
a. Align the matchmarks, and install the front disc.
HINT:
When replacing the disc with a new one, select the installation position where the front disc has the
minimum runout.
16.INSPECT DISC RUNOUT
a. Ti
ghten the disc with the 3 hub nuts.

Fig. 100: Identifying Matchmarks On Rear Disc And Axle Hub
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Release the parking brake, and remove the rear disc.
HINT:
If the disc cannot be removed easil
y, turn the shoe adjuster until the wheel turns freely.

Fig. 137: Identifying Parking Brake Adjusting Nut
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h. Depress the parking brake pedal 5 notches to make room for the procedure, and loosen the lock nut.
i. Release the parking brake pedal to the original position. Turn the parking brake wire adjusting nut
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j. Using a spanner or equivalent to hold the parking brake adjusting nut, tighten the lock nut.
Torque: 6.0 N.m (61 kgf.cm, 53 in.lbf)
k. Count the number of clicks after depressing and releasing the parking brake pedal 3 or 4 times.
l. Check whether the parking brake drags or not.
If the parking brake drags, adjust the shoe clearance.
m. When operating the parking brake pedal, check that the parking brake pedal indicator light comes
on at the first notch.
If not, adjust the parking brake switch installation position.
n. Install the instrument panel under cover sub-assy No.2.
o. Install the instrument panel safet
y pad sub-assy No.1.