Lock-Up Solenoid
WARNING: This page is about a different car, the 2008 Suzuki Swift +, 2008 Pontiac Wave, and 2008 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.
The lock-up solenoid (1) is installed in the valve body. It receives control signal from transmission control module (TCM).
The lock-up solenoid operates the lock-up valve inside the valve body and controls the torque converter lockup function.