00:00The OSS sensor, known as the output shaft speed sensor,
00:04It is installed in the transmission.
00:06Its function is to measure how fast the axle that transmits force to the vehicle's wheels rotates.
00:09When the output shaft rotates, the OSS sensor generates an electrical signal in the form of pulses.
00:14The faster the vehicle moves,
00:16The higher the frequency, the higher the signal frequency sent to the transmission control module.
00:19With this information, the computer calculates the moment to make the speed changes.
00:23It also compares the input and output speeds of the transmission
00:26to detect slippage or internal problems.
00:29Thanks to the OSS sensor, the transmission can shift smoothly and efficiently.
00:33In some vehicles it also helps the speedometer to function.
00:35If it fails, it can cause sudden changes and emergency mode.
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