In more recent automatic transmissions, the valves are controlled by solenoids.[fifteen] These solenoids are Laptop or computer-controlled, With all the equipment collection decided by a devoted transmission Handle device (TCU) or from time to time this function is integrated in to the engine control unit (ECU). Present day layouts https://gearboxauto97418.xzblogs.com/73366787/gearbox-auto-an-overview