WARNING: This page is about a different car, the 2014 Hyundai Veloster and 2013 Hyundai Veloster. However, it is still accessible from the selected car via links, so may be relevant.
Line pressure control solenoid valve is attached to the valve body. This variable force solenoid valve directly controls the hydraulic pressure inside the line pressure.
Fig 1: Identifying Line Pressure Control Solenoid Valve