DTC P2757: Torque Converter Clutch Pressure Control Solenoid Performance (Shift Solenoid Valve SLU) [12/2012 - ]: Description

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The ECM uses the signals from the throttle position sensor, air flow meter, input turbine speed sensor, output speed sensor and crankshaft position sensor to monitor the engagement condition of the lock-up clutch.

The ECM compares the engagement condition of the lock-up clutch with the lock-up schedule in the ECM memory to detect mechanical problems of the shift solenoid valve (SLU), valve body and torque converter.

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory
P2757	Torque Converter Clutch Pressure Control Solenoid Performance (Shift Solenoid Valve SLU)	Lock-up does not occur when requested (2-trip detection logic).	Shift solenoid valve SLU remains open or closed Transmission valve body assembly is blocked Torque converter assembly Automatic transaxle assembly (clutch, brake or gear, etc.) Line pressure is too low	Comes on	DTC stored