2003 LEXUS LS430 Factory Repair Manual

Page 1025 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 58: Removing Clamp From Brake Tubes 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
b. Using SST, remove the 2 brake tubes from the master cylinder and ABS & TRACTION actuator 
assy. 
SST 09751-36

Page 1026 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 59: Removing Brake Tubes From Master Cylinder And ABS & TRACTION Actuator 
Assy 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
c. Disconnect the brake fluid level warning switch connector from th

Page 1027 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 60: Removing Brake Master Cylinder Sub-Assy Nuts 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
5.REMOVE INSTRUMENT CLUSTER FINISH PANEL END  
6.REMOVE INSTRUMENT CLUSTER FINISH PANEL CENTER LOWE

Page 1028 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 61: Removing Clip And Push Rod Pin 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
14.REMOVE BRAKE BOOSTER ASSY 
a. Slide the clip upward and disconnect the vacuum hose ass
y from the vacuum check

Page 1029 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 62: Disconnecting Vacuum Hose Assy From Vacuum Check Valve Assy 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
b. Remove the 4 nuts and pull out the brake booster assy. 
c. Remove the brake boost

Page 1030 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 63: Removing Nuts And Brake Booster Assy 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
15.REMOVE BRAKE VACUUM CHECK VALVE ASSY 
a. Remove the vacuum check valve assy and the grommet from the bra

Page 1031 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 64: Removing Vacuum Check Valve Assy And Grommet From Brake Booster Assy 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
17.INSTALL BRAKE BOOSTER ASSY 
a. Install a new brake booster gasket.  
b.

Page 1032 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 65: Installing Brake Booster Assy With Nuts 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
c. Connect the vacuum hose assy to the vacuum check valve assy and set the clip.