2003 LEXUS LS430 Factory Repair Manual

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LEXUS LS430 2003  Factory Repair Manual d. Read the value of the brake pedal load sensing switch displayed on the hand-held tester when 
depressing and releasing the brake pedal.  
Standard:  
BRAKE PEDAL STANDARD DESCRIPTION 
NG: Go to ste

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LEXUS LS430 2003  Factory Repair Manual NG: REPLACE BRAKE PEDAL SUB-ASSY
Fig. 110: Inspecting Brake Pedal Sub
-Assy

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LEXUS LS430 2003  Factory Repair Manual Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
OK: Go to next step  
4.CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - BRAKE PEDAL LOAD 
SENSING SWITCH) 
a. Disconnect the skid control ECU connector S42

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LEXUS LS430 2003  Factory Repair Manual Fig. 111: Identifying Skid Control ECU Terminals 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
OK: REPLACE ABS & TRACTION ACTUATOR ASSY (SEE REPLACEMENT
 )  
CIRCUIT DESCRIPTION

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LEXUS LS430 2003  Factory Repair Manual During DTC read by SST (Check Wire), if the ABS warning light remains on, trouble shoot by following this 
inspection flow. 
WIRING DIAGRAM 
Fig. 112: ABS Warning Light Wiring Diagram
 
Courtesy of TO

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LEXUS LS430 2003  Factory Repair Manual INSPECTION PROCEDURE 
1.CHECK DTC 
a. Is DTC output for ABS, CAN and/or MPX?  
OK: Go to next step  
DTC OUTPUT DESCRIPTION 
B: REPAIR CIRCUIT INDICATED BY OUTPUT CODE  
A: Go to next step  
2.INSPECT

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LEXUS LS430 2003  Factory Repair Manual <0029004c004a00110003001400140016001d0003002c0057004800500003003000480044005600580055004800500048005100570003002c0057004800500003003500440051004a0048000300310052005500500044004f00030026005200510047004

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LEXUS LS430 2003  Factory Repair Manual Fig. 114: Identifying Skid Control ECU Terminals 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR  
OK: REPLACE ABS & TRACTION ACTUATOR ASSY (SEE REPLACEMENT