2003 LEXUS LS430 Factory Repair Manual

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LEXUS LS430 2003  Factory Repair Manual Fig. 50: Measuring Clearance Between Brake Booster Assy And SST (2 Of 2) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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LEXUS LS430 2003  Factory Repair Manual Using SST, adjust the booster push rod length until the push rod lightly touches the pin head.  
SST 09737-00020  
Fig. 51: Adjusting Booster Push Rod Length
 
Courtesy of TOYOTA MOTOR SALES, U.S.A.,

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LEXUS LS430 2003  Factory Repair Manual Fig. 52: Installing Brake Master Cylinder Sub-Assy And Vacuum Check Valve Bracket With 
Nuts 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
c. Using SST, install the brake tube to the brake master cyl

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LEXUS LS430 2003  Factory Repair Manual Fig. 53: Installing Brake Tube To Brake Master Cylinder Sub-Assy And ABS & TRACTION 
Actuator Assy 
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14.FILL RESERVOIR WITH BRAKE FLUID  
15.BLEED MASTER C

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LEXUS LS430 2003  Factory Repair Manual Fig. 54: Exploded View Of Brake Booster Assy 
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ON-VEHICLE INSPECTION 
1.OPERATION CHECK 
a. Depress the brake pedal several times with the en
gine off and

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LEXUS LS430 2003  Factory Repair Manual 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

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LEXUS LS430 2003  Factory Repair Manual 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

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LEXUS LS430 2003  Factory Repair Manual Fig. 57: Inspecting Vacuum Check Valve 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
REPLACEMENT 
1.REMOVE ENGINE ROOM SIDE COVER  
2.SEPARATE ENGINE ROOM NO.3 R/B 
a. Remove the bolt and separate th