2003 LEXUS LS430 Factory Repair Manual

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Page 721 of 4500

LEXUS LS430 2003 Factory Repair Manual 4.AUDIO AND REAR A/C CONTROL SW Fig. 17: Audio And Rear A/C Control SW ECU Terminal Connector Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. TERMINAL DESCRIPTION CHART ATX- (S31-20) - GND (S31-25)

Page 722 of 4500

LEXUS LS430 2003 Factory Repair Manual 5.GATEWAY ECU Fig. 18: GATEWAY ECU Terminal Connector Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. TERMINAL DESCRIPTION CHART 1.Starting Diagnostic Mode (All elements come on during the SW check

Page 723 of 4500

LEXUS LS430 2003 Factory Repair Manual elements come on during the SW check mode. It takes about 40 seconds to complete the check. Turn all the elements in the LCD on. When pressing the switch, confirm beep sound is emitted. Press t

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LEXUS LS430 2003 Factory Repair Manual 3.Finishing Diagnostic Mode. a. Press the "DISC" for 2 seconds or more, or turn the ignition switch off. HINT: Illustrations may differ from the actual vehicle depending on the device sett

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LEXUS LS430 2003 Factory Repair Manual Fig. 20: Identifying Read System Check Result Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 3.Detailed information mode (when displaying the DTC for a trouble component)

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LEXUS LS430 2003 Factory Repair Manual a. With "CHEC" or "ECHN" being displayed, press the preset switch "2" to go to the detailed information mode. b. Press the "SEEK TRACK" switch to display the "Sy

Page 727 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 22: System Check Mode Sheet Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Page 728 of 4500

LEXUS LS430 2003 Factory Repair Manual c. Displayed Items in Detailed Information Mode Fig. 23: Items Detailed Information Mode Chart Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. d. Check the trouble area referring to the DTC list. e
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