P0712

Diagnostic Chart:

Schematic:

The automatic transmission fluid temperature (TFT) sensor is a thermistor that varies according to changes in transmission fluid temperature. The TCM supplies 5 volt reference through a pull up resistor to the sensor, which is connected to ground. When the sensor is cold it has high resistance. As the sensor temperature increases, its resistance decreases. The TCM uses the signal voltage to determine transmission fluid temperature. DTC P0712 sets when the TFT sensor signal voltage at the TCM is below the calibrated voltage value.

DTC PARAMETERS
DTC P0712 will set if TFT temperature is over 150°C (302°F) when:
^ The engine is running
^ Transaxle Protection Mode is OFF
^ Condition exists for longer than 5 minutes

DTC P0712 diagnostic runs continuously when the above conditions have been met.

DTC P0712 is a type A DTC.

DIAGNOSTIC AIDS
To locate an intermittent problem, use a Scan tool to monitor Transaxle Fluid Temp with ignition On, engine Off. Wiggling wires while watching for a change on Transaxle Fluid may locate the area where a short to ground in the wiring could lie.

Refer to DTC P0711 for a Temperature vs. Resistance chart. P0711