P0713

DTC P0713 (3.6L)





Circuit Description
The automatic transmission fluid temperature (TFT) sensor is a negative coefficient thermistor whose resistance value changes based on temperature. The TCM provides a 5 volt reference to the sensor. A low fluid temperature, an open TFT sensor or sensor circuit results in high signal voltage. The TFT operating range is -40 to +151°C (-40 to +304°F).

If the TCM detects a continuous open or a short to voltage on the TFT sensor circuit, then DTC P0713 sets. DTC P0713 is a type C DTC.

DTC Descriptor
This diagnostic procedure supports this DTC:
DTC P0713 Transmission Fluid Temperature (TFT) Sensor Circuit High Voltage

Conditions for Running the DTC
No VSS DTC P0722 or P0723.

Conditions for Setting the DTC
The TCM detects a TFT of 39.5°C (-39°F) or less for 25 seconds.

Action Taken When the DTC Sets
^ The TCM does not request the ECM to illuminate the malfunction indicator lamp (MIL).
^ The TCM freezes transmission adaptive functions.
^ The TCM calculates a default TFT from the ECT sensor and the IAT sensor.
^ The TCM records the operating conditions when the Conditions for Setting the DTC are met. The TCM stores this information as Failure Records.
^ The TCM stores DTC P0713 in TCM history.

Conditions for Clearing the DTC
^ A scan tool can clear the DTC.
^ The TCM clears the DTC from TCM history if the vehicle completes 40 warm-up cycles without a non-emission related diagnostic fault occurring.
^ The TCM cancels the DTC default actions when the fault no longer exists and the DTC passes.








Test Description
The numbers refer to the step numbers on the diagnostic table.
3. A value of 4.9 - 5.0 volts indicates the TCM and engine side of the wiring are good.
6. A short to voltage greater than 5 volts would cause the TFT sensor to open.
9. A short to the TFT sensor signal circuit and any other circuits in the transmission harness could cause the TFT sensor to open.