Torque Converter Diagnosis: Notes
WARNING: This page is about a different car, the 2008 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.
The torque converter clutch (TCC) is applied by fluid pressure, which is controlled by the pressure control solenoid valve. The pressure control solenoid valve is located inside of the automatic transmission assembly. The pressure control solenoid valve is controlled through a combination of computer controlled switches and sensors.