DTC P0712-00: Transmission Fluid Temperature Sensor 'A' Circuit Low Input: 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.
The Automatic Transaxle Fluid (ATF) temperature sensor is located in the valve body. The sensor uses a thermistor which resistance changes according to temperature change. The TCM supplies approximately 5 reference volts to the sensor, the output voltage of the sensor changes with ATF temperature change. This information is monitored by the TCM which assist in controlling the Torque Converter Clutch (TCC), shift control and other purposes.