Transmission Fluid Temperature (TFT) Sensor

The Transmission Fluid Temperature (TFT) sensor is located on the internal wiring harness to the solenoid valves in the transmission fluid pan.

It is a resistor and measures the TFT  .

The TFT  is used by the PCM for the following functions:

• Applying the TCC  is not permitted until the transmission fluid reaches a certain temperature.
• Engagement of 4th gear is prevented in extreme sub-zero temperatures until the normal operating temperature is reached.
• If the TFT  is excessive, a pre-set fixed shift curve is selected and the TCC  is closed in 2, 3 and 4, and the transaxle warning indicator is activated. No substitute signal is available for the TFT  sensor.