Torque Converter Clutch Pulse Width Modulated Solenoid Valve
WARNING: This page is about a different car, the 2008 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.
The torque converter clutch (TCC) solenoid valve is a three-port assembly which uses negative (-) duty cycle, pulse width modulation (PWM) to control the rate of TCC apply and release. The solenoid's ability to ramp apply and release pressures results in a smoother apply and release of the TCC in all conditions.
The TCC PWM solenoid valve is a normally closed valve, mounted to the upper control valve body and used to control the position of the TCC apply valve.
TCC PWM solenoid valve resistance should be 10-11 ohms when measured at 20°C (68°F). Resistance should be 13-15 ohms when measured at 100°C (212°F).