2003 LEXUS LS430 Factory Repair Manual

Page 9 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 5: ABS & TRACTION Actuator - Electronic Brake Force Distribution 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
Operation description  
The skid control ECU receives the speed signal from each sp

Page 10 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 6: ABS & TRACTION Actuator - Brake Assist 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
Operation description  
The skid control ECU receives the signal from the stop lamp switch and the oil pre

Page 11 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 7: ABS & TRACTION Actuator - Traction Control 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
Operation description  
The skid control ECU detects vehicle's slip condition by receiving signals

Page 12 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 8: ABS & TRACTION Actuator - Vehicle Stability Control 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
Operation description  
The skid control ECU determines vehicle condition by receiving signal

Page 13 of 4500

LEXUS LS430 2003  Factory Repair Manual If a collision (front collision) is determined to be unavoidable, the pre-collision brake assist system 
receives the brake assist standby signal from the distance control ECU and enters brake assist

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LEXUS LS430 2003  Factory Repair Manual 10.(SEE DIAGNOSTIC TROUBLE CODE CHART )  
11.Circuit Inspection (SEE DTC C0200/31 RIGHT FRONT SPEED SENSOR, DTC C0205/32 LEFT 
FRONT SPEED SENSOR to TS AND CG TERMINAL CIRCUIT )  
12.Identification of

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LEXUS LS430 2003  Factory Repair Manual Fig. 9: ABS & EBD & BA Check Sheet 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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LEXUS LS430 2003  Factory Repair Manual Fig. 10: TRAC & VSC Check Sheet
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