Transmission Temperature Sensor/Switch: Testing and Inspection

TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR (A/T ONLY)
- If the transmission fluid temperature sensor circuit has an open or short, Diagnostic Trouble Code No. P0712, P0713, or P1711 is output.
- If the transmission fluid temperature sensor is open or shorted, erratic shifting may be felt.

INSPECTION
1. Access TFT PID on SST (NGS tester).
2. Monitor the TFT PID voltage as the engine warms to normal operating temperature.

Temperature To Voltage Curve Chart:

Temperature To PID Voltage To Resistance Table:

3. If TFT PID does not increase as engine reaches normal operating temperature, inspect TFT sensor resistance with SST (AT Tester: 49-UNO1-071).