K 1500 Suburban 4WD V8-4.8L VIN V (2003)
Torque Converter Clutch Solenoid: Description and Operation
4L60-E/4L65-E
4L60-E/4L65-E
Torque Converter Clutch Solenoid Valve
The torque converter clutch (TCC) solenoid valve is a normally-open exhaust valve that is used to control torque converter clutch apply and release.
When grounded (energized) by the PCM, the TCC solenoid valve stops converter signal oil from exhausting. This causes converter signal oil pressure to
increase and move the TCC solenoid valve into the apply position.
Torque Converter Clutch Pulse Width Modulation Solenoid Valve
The torque converter clutch pulse width modulation solenoid valve controls the fluid acting on the converter clutch valve. The converter clutch valve
controls the TCC apply and release. This solenoid is attached to the control valve body assembly within the transmission. The TCC PWM solenoid valve
provides a smooth engagement of the torque converter clutch by operating during a duty cycle percent of ON time.
