2003 LEXUS LS430 Factory Repair Manual

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Page 3177 of 4500

LEXUS LS430 2003 Factory Repair Manual HINT: Registration will be cancelled if each step is not completed within the specified time. ECU Communication ID Registration

Page 3178 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 8: ECU Communication ID Registration Flowchart Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 6.ECU COMMUNICATION ID REGISTRATION

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LEXUS LS430 2003 Factory Repair Manual a. Register the ECU communication ID. 1. Using SST, connect terminals TC and CG of the DLC3. SST 09843-18040 Fig. 9: Connecting Terminals TC And CG Of DLC3 Using SST Courtesy of TOYOTA MOTOR SALE

Page 3180 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 11: Checking Transponder Key Amplifier Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. a. Disconnect the T8 amplifier connector. b. Measure the resistance of the wire harness side connector. St

Page 3181 of 4500

LEXUS LS430 2003 Factory Repair Manual d. Measure the voltage and resistance of the connector. Standard: TRANSPONDER KEY AMPLIFIER - VOLTAGE TABLE If the result is not as specified, the amplifier may have a malfunction. e. Inspect usi

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LEXUS LS430 2003 Factory Repair Manual Fig. 12: Identifying Waveform 1 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. Waveform 2 (Reference): WAVEFORM 2 REFERENCE TABLE TerminalCODE - GND Tool Setting10 V/DIV., 20ms/DIV. ConditionNo key

Page 3183 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 13: Identifying Waveform 2 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. Waveform 3 (Reference): WAVEFORM 3 REFERENCE TABLE TerminalTXCT - GND Tool Setting5 V/DIV., 20ms/DIV. ConditionNo key

Page 3184 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 14: Identifying Waveform 3 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 2.CHECK STEERING LOCK ECU
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