The control system includes: oil pump, valve block, solenoid valves (solenoids), hydraulic accumulators, clutches and brakes.
The main pressure in the system is created by the oil pump, it is regulated depending on the load and vehicle speed, and ensures the operation of the torque converter, lock-up clutches and brakes. Shift valves control fluid flow to the torque converter and planetary gearbox.
The A241L valve block has one solenoid valve that controls the boost planetary gear set.
The A240E, A241E, A245E valve block contains three solenoids #1, #2 used for shifting and #3 which controls the torque converter lock-up clutch. The A245E valve block has an additional torque converter lockup quality control solenoid.