2003 LEXUS LS430 Factory Repair Manual

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Page 3921 of 4500

LEXUS LS430 2003 Factory Repair Manual 1.CHECK DRIVER SEAT ECU Fig. 7: Identifying Terminals Of Driver Seat ECU Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. a. Disconnect the D27 and D28 ECU connectors. b. Measure the voltage of the

Page 3922 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 8: Driver Seat ECU Terminals Reference Chart Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. If the result is not as specified, replace the power seat or the ECU may have a malfunction.

Page 3923 of 4500

LEXUS LS430 2003 Factory Repair Manual 2.CHECK DRIVER DOOR ECU Fig. 9: Identifying Terminals Of Driver Door ECU Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. a. Disconnect the D25 ECU connector. b. Measure the voltage of the wire harn

Page 3924 of 4500

LEXUS LS430 2003 Factory Repair Manual If the result is not as specified, replace the driver door ECU may have a malfunction. 1.DESCRIPTION a. The seat ECU controls the function of the front power seat control system on the vehicle. Data

Page 3925 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 10: Identifying DLC3 Connector Terminals Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. DLC3 CONNECTOR TERMINALS REFERENCE HINT: Connect the cable of the hand-held tester (with CAN VIM) to the D

Page 3926 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 11: Connecting Cable Of Hand-Held Tester (With CAN VIM) To DLC3 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 3.INSPECT BATTERY VOLTAGE Standard: 11 to 14 V If voltage is below 11 V, replace

Page 3927 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 12: Driver Seat ECU - Data List Chart (1 Of 3) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Page 3928 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 13: Driver Seat ECU - Data List Chart (2 Of 3) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
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