The engine control module in a vehicle serves as the link between the engine and the wheels, transferring the engine’s power through a series of mechanical gears and gear trains. It enables the driver to control the vehicle’s power output, allowing for precise movement. Without the transmission, the car would not function properly. Lower gears in the gearbox provide the necessary torque for acceleration, while higher gears allow the vehicle to reach higher speeds by using the engine’s power more efficiently. Although the basic function seems straightforward, there are several different types of transmissions that convert this power into motion.

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