Description
Electronic transmissions are usually equipped with multiple transmission speed sensors that measure how fast the input and output shafts of the transmission are spinning. The torque converter turbine is splined to the transmission input shaft, also known as the “turbine shaft.”
The transmission input speed sensor measures the speed of the input (turbine) shaft, which transfers power from the engine to the transmission, while the output speed sensor measures the speed of the output shaft, which connects the transmission to either the differential or the driveshaft. Some transmissions may have a speed sensor for one or more intermediate shafts as well, so the number of sensors varies widely from platform to platform.
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