AUTOMATIC TRANSAXLE SYSTEM, Diagnostic DTC:P0711

The ATF temperature sensor converts the fluid temperature into a resistance value for use by the ECM.

The ECM applies a voltage to the temperature sensor through terminal THO1 of the ECM.

The sensor resistance changes with the ATF temperature. As the temperature becomes higher, the sensor resistance decreases.

One terminal of the sensor is grounded so that the sensor resistance decreases and the voltage goes down as the temperature becomes higher.

The ECM calculates the fluid temperature based on the voltage signal.

• *1: w/ Canister Pump Module

• *2: w/o Canister Pump Module

This DTC indicates that there is a problem with output signals from the ATF temperature sensor and that the sensor itself is defective. The ATF temperature sensor converts the ATF temperature into an electrical resistance value. Based on the resistance, the ECM determines the ATF temperature and detects an open or short in the ATF temperature circuit or a fault of the ATF temperature sensor.

After running the vehicle for a certain period, the ATF temperature should increase. If the ATF temperature is below 20°C (68°F) after running the vehicle for a certain period, the ECM interprets this as a fault, turns on the MIL, and stores the DTC.

1. DATA LIST

   Tip:

   Using the GTS to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

   Note:

   In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

   1. Warm up the engine.

   2. Turn the ignition switch off.

   3. Connect the GTS to the DLC3.

   4. Turn the ignition switch to ON.

   5. Turn the GTS on.

   6. Enter the following menus: Powertrain / Engine and ECT / Data List.

   7. According to the display on the GTS, read the Data List.

      Powertrain > Engine and ECT > Data List

      Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
      A/T Oil Temperature 1	ATF temperature sensor value	Min.: -40°C (-40°F) Max.: 215°C (419°F)	After stall test: Approx. 80°C (176°F) Equal to ambient temperature after cold soak	If the value is "-40°C (-40°F)" or "150°C (302°F)", the ATF temperature sensor circuit is open or shorted.

      Powertrain > Engine and ECT > Data List

      Tester Display
      A/T Oil Temperature 1

      Tip:

      When DTC P0712 is output and the GTS indicates 150°C (302°F) or higher, there is a short circuit.

      When DTC P0713 is output and the GTS indicates -40°C (-40°F), there is an open circuit.

      Check the temperature displayed on the GTS in order to check if a malfunction exists.

      Temperature Displayed	Malfunction
      -40°C (-40°F)	Open circuit
      150°C (302°F) or higher	Short circuit

      If a circuit related to the ATF temperature sensor becomes open, P0713 is immediately stored (in 0.5 seconds). When P0713 is stored, P0711 cannot be stored.

      It is not necessary to inspect the circuit when P0711 is stored.