DTC P0740-7E: Torque Converter Clutch Actuator Stuck On [08/2016 - 11/2017]: Description

WARNING: This page is about a different variant/trim than selected.

The ECM uses signals from the throttle position sensor, mass air flow meter, transmission revolution sensor (NT), transmission revolution sensor (NC) and crankshaft position sensor to help determine the engagement timing of the lock-up clutch. The ECM monitors the engagement of the clutch using the transmission revolution sensor (NT), transmission revolution sensor (NC) and crankshaft position sensor.

Then the ECM compares the engagement condition of the lock-up clutch with the lock-up schedule in the ECM memory to detect shift solenoid valve SL, transmission valve body assembly and torque converter assembly mechanical problems.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P0740-7E	Torque Converter Clutch Actuator Stuck On	Lock-up does not occur when requested (2 trip detection logic).	Shift solenoid valve SL remains closed Transmission wire Transmission valve body assembly is blocked Torque converter assembly Automatic transmission assembly (clutch, brake or gear etc.) Line pressure is too low	Comes on	DTC stored	SAE Code: P0741