Transmission Temperature Sensor/Switch: Description and Operation

TRANSAXLE TEMPERATURE SENSOR
The transaxle fluid temperature (TFT) sensor is a thermistor which changes value based on the temperature of the transaxle fluid. A high TFT may cause the vehicle to operate in Hot Mode. While in Hot Mode, shift points may be altered, 4th gear disabled, and TCC forced on in 2nd gear.

A failure in the TFT sensor or associated wiring should cause DTC P0712 or P0713 to set. In this case, a value based upon the ECT is substituted for the TFT sensor value, and the transaxle operates normally. Refer to Functional Test Procedure in Automatic Transaxle.