2003 LEXUS LS430 Factory Repair Manual

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Page 2865 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 169: Identifying Transmission Wire Terminals Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. NG: Go to step 3 OK: Go to next step 2.CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) a. Co

Page 2866 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 170: Disconnecting ECM Connector Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. Standard: TRANSMISSION WIRE - ECM - RESISTANCE TABLE d. Measure the resistance according to the value(s) in the

Page 2867 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 171: Tester Connection Reference Chart Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ) OK: REPLACE ECM (

Page 2868 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 172: Inspecting Shift Solenoid Valve (SLT) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. NG: REPLACE SHIFT SOLENOID VALVE (SLT)

Page 2869 of 4500

LEXUS LS430 2003 Factory Repair Manual OK: REPAIR OR REPLACE TRANSMISSION WIRE (See step 5 on REPLACEMENT) DTC P2757: TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID PERFORMANCE (SHIFT SOLENOID VALVE SLU) SYSTEM DESCRIPTION The ECM us

Page 2870 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 174: Identifying Lock-Up Operation Pressure Graph Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. Fig. 175: DTC Reference Chart Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. MONITOR DESCRIPTION

Page 2871 of 4500

LEXUS LS430 2003 Factory Repair Manual relay valve and locks the torque converter clutch. If the ECM detects no lock-up after lock-up has been requested or if it detects lock-up when it is not requested, the ECM interprets this as a fault

Page 2872 of 4500

LEXUS LS430 2003 Factory Repair Manual OFF malfunction (A) TYPICAL ENABLING CONDITIONS TABLE - OFF MALFUNCTION A OFF malfunction (B) TYPICAL ENABLING CONDITIONS TABLE - OFF MALFUNCTION B ON malfunction TYPICAL ENABLING CONDITIONS T
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