2003 LEXUS LS430 Factory Repair Manual

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LEXUS LS430 2003  Factory Repair Manual Fig. 37: Identifying Brake Pedal Position 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
5.END OF CHECK/CLEAR 
a. Turn the ignition switch to the ON position  
b. Check that the ABS warning lamp go of

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LEXUS LS430 2003  Factory Repair Manual Whenever a DTC is detected or the ABS operates, the skid control ECU stores the current vehicle 
(sensor) state as freeze frame data.  
The skid control ECU stores the number of times (maximum: 31) th

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LEXUS LS430 2003  Factory Repair Manual Fig. 38: Freeze Frame Data 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
1.FAIL SAFE OPERATION  
FAIL-SAFE CHART 
HINT: 
A malfunction in either the ABS or BA system will result in identical operatio

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LEXUS LS430 2003  Factory Repair Manual Fig. 39: VSC Data List (1 Of 2) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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LEXUS LS430 2003  Factory Repair Manual Fig. 40: VSC Data List (2 Of 2) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
1.ACTIVE TEST

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LEXUS LS430 2003  Factory Repair Manual HINT: 
Performing the ACTIVE TEST using the hand-held tester allows the relay and actuator, etc. to operate without 
removing any parts. Performing the ACTIVE TEST as the first step of troubleshooting

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LEXUS LS430 2003  Factory Repair Manual HINT: 
If a malfunction code is displayed during the DTC check, check the circuit indicated by the table below. 
DIAGNOSTIC TROUBLE CODE CHART 
SMF (BA-SOL)Turns TRAC solenoid SMF (BA-SOL) 
ON / OFFOp

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LEXUS LS430 2003  Factory Repair Manual DTC chart of ABS:  
DTC C1232/32, C1234/34, C1243/43, 
C1244/44, C1245/45, C1381/97
MALFUNCTION IN DECELERATION/YAW RATE 
SENSOR, OPEN OR SHORT IN DECELERATION 
SENSOR CIRCUIT, MALFUNCTION IN POWER 
S