P0711

DTC P0711 Oil temperature sensor system A circuit (performance)

Circuit description

The oil temperature sensor installed in the valve body detects the oil temperature in the transmission hydraulic control circuit and inputs signals corresponding to the oil temperature to the transmission control computer ASSY.








Monitor description

This diagnostic code indicates that the automatic transmission fluid (ATF) temperature sensor output is abnormal and the sensor itself is defective. The ATF temperature sensor converts ATF temperature into electric resistance value. TCM specifies ATF temperature based on the resistance value and detects open or short circuit in the ATF temperature circuit or defects of the ATF temperature sensor.
If the vehicle drives for a certain period of time, the ATF temperature should rise. If the ATF temperature is less than 20°C and the input voltage fluctuation is 0.05 V or less after the vehicle drives for a certain period of time, TCM recognizes the defect and turns on MIL.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS

All:





TYPICAL MALFUNCTION THRESHOLDS





Circuit figure





Inspection steps

NOTE:
Read the freeze frame data using SSM3. Freeze frame data includes a part of the engine operation condition when a trouble occurs and the information helps the troubleshooting.