DTC P0722-00: Secondary Pulley Speed Sensor Circuit No Signal: General Description
WARNING: This page is about a different car, the 2021 Kia Soul. However, it is still accessible from the selected car via links, so may be relevant.
The output speed sensor is used to acquire the pulse signal through the output speed of the auto transmission. The PCM is to calculate the output speed by the pulse signal and to control the best hydraulic to shift the gear