DTC P0721-00: Output Speed Sensor Circuit Range/Performance: General Description
WARNING: This page is about a different car, the 2024 Kia Sorento. However, it is still accessible from the selected car via links, so may be relevant.
Input/output speed sensor is one body and installed in transmission. It's used hall sensor of an electric current type, and current is changed by magnetic variation. Each sensors are composite 2 pins and TCM supplied power to sensor and controlled by TCM.