2003 LEXUS LS430 Factory Repair Manual

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LEXUS LS430 2003  Factory Repair Manual HINT: 
This DTC is output when the VSC system detects a malfunction in the ABS system.  
When DTC C1223/43 is memorized, there is no malfunction in the skid control ECU.  
CIRCUIT DESCRIPTION 
DTC DET

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LEXUS LS430 2003  Factory Repair Manual Fig. 75: DTC C1231/31 Detecting Condition And Trouble Area 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
WIRING DIAGRAM

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LEXUS LS430 2003  Factory Repair Manual Fig. 76: Steering Angle Sensor Wiring Diagram 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
INSPECTION PROCEDURE 
HINT:

Page 108 of 4500

LEXUS LS430 2003  Factory Repair Manual When U0121/94, U0123/62, U0124/95 or U0126/63 are output together with C1231/31, inspect and 
repair the trouble areas indicated by U0121/94, U0123/62, U0124/95 or U0126/63 first.  
When the speed sen

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LEXUS LS430 2003  Factory Repair Manual NG: Go to step 3  
OK: REPLACE ABS & TRACTION ACTUATOR ASSY (SEE REPLACEMENT
 )  
3.CHECK TERMINAL VOLTAGE (STEERING ANGLE SENSOR CONNECTOR) 
a. Remove the steering wheel and the column lower cover.

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LEXUS LS430 2003  Factory Repair Manual Fig. 78: Checking Terminal Voltage (Steering Angle Sensor Connector) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR  
OK: REPLACE STEERING ANGLE SENSOR  
CIR

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LEXUS LS430 2003  Factory Repair Manual Fig. 79: DTC C1232/32 And DTC C1381/97 Detecting Condition And Trouble Area 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
WIRING DIAGRAM

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LEXUS LS430 2003  Factory Repair Manual Fig. 80: Deceleration Sensor Wiring Diagram 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
INSPECTION PROCEDURE 
HINT: