Mar 23
P0740 Code – Torque Converter Clutch Circuit Fault
The P0740 code is an OBD2 diagnostic trouble code that indicates a malfunction in the torque converter clutch (TCC) circuit. Automatic transmissions use a torque converter to transfer power from the engine to the transmission. Inside the torque converter is a lock-up clutch that engages at higher speeds to improve fuel efficiency and reduce engine load. When the transmission control module…