2003 LEXUS LS430 Factory Repair Manual

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Page 2705 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 27: Identifying Waveform 2 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. Reference: WAVEFORM 2 REFERENCE TABLE Waveform 3 TerminalSLU+ - SLU- Tool setting5V/DIV, 1ms/DIV Vehicle condition5th

Page 2706 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 28: Identifying Waveform 3 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. Reference: WAVEFORM 3 REFERENCE TABLE Waveform 4 TerminalSL2+ - SL2- Tool setting5V/DIV, 1ms/DIV Vehicle conditionEng

Page 2707 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 29: Identifying Waveform 4 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. Reference: WAVEFORM 4 REFERENCE TABLE Waveform 5 TerminalSL1+ - SL1- Tool setting5V/DIV, 1ms/DIV Vehicle condition5th

Page 2708 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 30: Identifying Waveform 5 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. Reference: WAVEFORM 5 REFERENCE TABLE Waveform 6 TerminalNT+ - NT- Tool setting1V/DIV, 2ms/DIV Vehicle conditionEngin

Page 2709 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 31: Identifying Waveform 6 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. Reference: WAVEFORM 6 REFERENCE TABLE DIAGNOSIS SYSTEM DESCRIPTION When troubleshooting On-Board Diagnostic (OBD II

Page 2710 of 4500

LEXUS LS430 2003 Factory Repair Manual 2. The powertrain control components (which affect vehicle emissions) 3. The computer. In addition, the applicable Diagnostic Trouble Codes (DTCs) prescribed by SAE J2012 are recorded in the ECM

Page 2711 of 4500

LEXUS LS430 2003 Factory Repair Manual The DTCs and freeze frame data can be erased with the scan tool (see DTC CHECK/CLEAR). Fig. 33: Connecting Scan Tool To DLC3 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. NORMAL MODE AND CHECK MODE

Page 2712 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 34: Identifying DLC3 Terminals Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. FREEZE FRAME DATA Freeze frame data records the engine conditions (fuel system, calculated load, engine coolant tem
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