300 SRT-8 V8-6.1L VIN W (2005)
The solenoid valves are controlled by the TCM and trigger the hydraulic functions.
HYDRAULIC CONTROL UNIT
Working Pressure Regulating Valve (Line Pressure or Operating Pressure)
The working pressure (p-A) is regulated at the working pressure regulating valve (4) in relation to load (modulating pressure, p-Mod) and gear (K1 or
K2 pressure) (1). The spring in the working pressure regulating valve sets a minimum pressure level (basic pressure).
Torque Converter Lockup Clutch Regulating Valve
The torque converter lockup clutch regulating valve (6) regulates the torque converter lock-up clutch working pressure (p-TCC) in relation to the
torque converter clutch control pressure (p-S/TCC). According to the size of the working pressure (p-A), the torque converter lockup clutch is either
Engaged, Disengaged, or Slipping. When the regulating valve (6) is in the lower position, lubricating oil flows through the torque converter and oil
cooler (8) into the transmission (torque converter lockup clutch unpressurized). In its regulating position (slipping, torque converter lockup clutch