2003 LEXUS LS430 Factory Repair Manual

Page 1249 of 4500

LEXUS LS430 2003  Factory Repair Manual NG: REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR
OK: REPLACE STEERING SENSOR (SEE REPLACEMENT )  
MODE DESCRIPTION 
Fig. 44: Problem Symptom Diagnostic Chart
 
Courtesy of TOYOTA MOTOR SALES, U.S.A., I

Page 1250 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 45: Wiring Diagram - Yaw Rate Sensor Communication Stop Mode 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
INSPECTION PROCEDURE 
1.CHECK CAN BUS LINE FOR DISCONNECTION (YAW RATE SENSOR SUB BUS L

Page 1251 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 46: Identifying Yaw Rate Sensor Connector 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
a. Turn the ignition switch to the LOCK position.  
b. Disconnect the yaw rate sensor connector (Y1).  
c.

Page 1252 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 47: Identifying Yaw Rate Sensor Connector 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
a. Measure the resistance according to the value (s) in the table below.  
b. Measure the voltage accordin

Page 1253 of 4500

LEXUS LS430 2003  Factory Repair Manual MODE DESCRIPTION 
Fig. 48: Problem Symptom Diagnostic Chart
 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
WIRING DIAGRAM

Page 1254 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 49: Wiring Diagram - Distance Control ECU Communication Stop Mode 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
INSPECTION PROCEDURE 
1.CHECK CAN BUS LINE FOR DISCONNECTION (DISTANCE CONTROL ECU

Page 1255 of 4500

LEXUS LS430 2003  Factory Repair Manual <0029004c004a0011000300180013001d00030027004c00560046005200510051004800460057004c0051004a00030027004c0056005700440051004600480003002600520051005700550052004f0003002800260038000300260052005100510048004

Page 1256 of 4500

LEXUS LS430 2003  Factory Repair Manual Standard:  
DISTANCE CONTROL ECU CONNECTOR TERMINALS RESISTANCE 
NG: REPAIR OR REPLACE DISTANCE CONTROL ECU SUB BUS LINE OR CONNECTOR 
(CAN-H, CAN-L)  
OK: GO TO NEXT STEP  
2.CHECK WIRE HARNESS (+B,