Transmission Fluid Temperature (TFT) Sensor

WARNING: This page is about a different car, the 2007 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.

The transmission fluid temperature (TFT) sensor is a thermistor-type sensor that varies a reference voltage signal. The resistance in the TFT varies with temperature. The PCM monitors the voltage signal across the TFT, and uses this information to determine the transmission fluid temperature.
The TFT is located on the main control body wiring harness assembly.
The PCM uses the TFT signal to help determine shift scheduling, torque converter clutch operation and EPC.