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Transmission Control Solenoids

The transmission is the component of a vehicle that translates energy created by the engine into mechanical action. It is what makes the wheels go round. Transmissions have several gears that affect the action of the wheel differently. Forward gears include first, second, and driving gears (most automatic transmissions are this way, and manual transmissions have gears usually up to four or five). Reverse is one gear. Park and neutral do not affect wheel movement. Neutral allows the wheels to be free but does not turn them. Park locks the transmission so that the wheels cannot turn. The transmission control unit is the computer for the transmission. Most transmissions now function through both mechanical and electronic devices. Transmission control units take care of all transmission related elements and ensure that the transmission puts out what is required. Transmission control units relay with engine control units to harmonize the workings of all systems.