2003 LEXUS LS430 sensor

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Page 55 of 4500

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

Page 56 of 4500

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

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LEXUS LS430 2003  Factory Repair Manual CIRCUIT DESCRIPTION 
The speed sensor detects wheel speed and sends the appropriate signals to the ECU. These signals are used to 
control the ABS control system. The front and rear rotors have 48 ser

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LEXUS LS430 2003  Factory Repair Manual Fig. 44: Right Front Speed Sensor Circuit Description 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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LEXUS LS430 2003  Factory Repair Manual Fig. 45: DTC C0200/31 And DTC C0205/32 Detecting Condition And Trouble Area 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
HINT: 
DTC C0200/31 is for the right front speed sensor.  
DTC C0205/32 is fo

Page 63 of 4500

LEXUS LS430 2003  Factory Repair Manual MEASUREMENT ITEM / RANGE DESCRIPTION
OK: Go to next step  
There are no momentary interruptions.  
HINT: 
Perform the above inspection before removing the sensor and connector. 
NG: Go to step 5  
OK:

Page 64 of 4500

LEXUS LS430 2003  Factory Repair Manual OK: Go to next step  
3.INSPECT SPEED SENSOR AND SENSOR ROTOR SERRATIONS 
INSPECTION USING OSCILLOSCOPE  
a. Connect the oscilloscope to terminal FR+ - FR- or FL+ - FL- of the skid control ECU.  
b. D

Page 65 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 47: Normal Signal Waveform 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
OK: REPLACE ABS & TRACTION ACTUATOR ASSY (SEE REPLACEMENT
 )  
4.INSPECT FRONT SPEED SENSOR