2003 LEXUS LS430 Factory Repair Manual

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Page 1377 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 167: Disconnecting Steering Sensor Sub Bus Line Connector (J43) From D-CAN J/C B Side (W/O Earth Terminal) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. a. Disconnect the steering sensor sub bu

Page 1378 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 168: Identifying DLC3 Connector terminals Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. b. Measure the resistance according to the value (s) in the table below. Standard: DLC3 CONNECTOR TERM

Page 1379 of 4500

LEXUS LS430 2003 Factory Repair Manual 15.CHECK CAN BUS LINE FOR SHORT TO +B (SUSPENSION CONTROL ECU SUB BUS LINE) Fig. 169: Identifying DLC3 Connector terminals Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. a. Disconnect the suspension

Page 1380 of 4500

LEXUS LS430 2003 Factory Repair Manual 16.CONNECT CONNECTOR a. Reconnect the gateway ECU sub bus line connector (J36) to the D-CAN J/C A side (w/earth terminal). 17.CHECK CAN BUS LINE FOR SHORT TO +B (GATEWAY ECU SUB BUS LINE) Fig. 17

Page 1381 of 4500

LEXUS LS430 2003 Factory Repair Manual NG: REPAIR OR REPLACE GATEWAY ECU SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 18.CONNECT CONNECTOR a. Reconnect the ECM sub bus line connector (J40) to the D-CAN J/C B side (w/o earth terminal). 19

Page 1382 of 4500

LEXUS LS430 2003 Factory Repair Manual OK: REPLACE ECM (SEE REPLACEMENT) NG: REPAIR OR REPLACE ECM SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 20.CONNECT CONNECTOR a. Reconnect the skid control ECU sub bus line connector (J41) to the D-CAN

Page 1383 of 4500

LEXUS LS430 2003 Factory Repair Manual OK: REPLACE SKID CONTROL ECU WITH ACTUATOR (SEE REPLACEMENT ) NG: REPAIR OR REPLACE SKID CONTROL ECU SUB BUS LINE OR CONNECTOR (CAN- H, CAN-L) 22.CONNECT CONNECTOR a. Reconnect the steering senso

Page 1384 of 4500

LEXUS LS430 2003 Factory Repair Manual DLC3 CONNECTOR TERMINALS RESISTANCE OK: REPLACE STEERING SENSOR (SEE REPLACEMENT ) NG: REPAIR OR REPLACE STEERING SENSOR SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 24.CONNECT CONNECTOR a. Reconne
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