AUTOMATIC TRANSMISSION SYSTEM(for 2TR-FE), Diagnostic DTC:P0711

DTC Code DTC Name
P0711 Transmission Fluid Temperature Sensor "A" Performance

DESCRIPTION

The No. 1 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.

DTC No. DTC Detection Condition Trouble Area
P0711

Either condition is met: (2 trip detection logic)


  • (a) Certain monitor enabling conditions are met and the No. 1 ATF temperature is below 20°C (68°F)


  • (b) Certain monitor enabling conditions are met and the No. 1 ATF temperature is 110°C (230°F) or higher

No. 1 ATF temperature sensor (transmission wire)

MONITOR DESCRIPTION

This DTC indicates that there is a problem with output signals from the No. 1 ATF temperature sensor and that the sensor itself is defective. The No. 1 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 No. 1 ATF temperature sensor circuit or a fault of the No. 1 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 malfunction, illuminates the MIL and stores the DTC.

When the ATF temperature is 110°C (230°F) or higher and the engine coolant temperature takes 10 seconds or more to reach 60°C (140°F) after a cold start, the ECM also determines this as a malfunction, illuminates the MIL and stores the DTC.

CAUTION / NOTICE / HINT

Note

Perform registration and/or initialization when parts related to the automatic transmission are replaced Click here.

Tech Tips

After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.


  1. Start the engine.*1

  2. Drive the vehicle 27 km (16.8 miles) or more over a period of 12 minutes and 30 seconds or more.*2

  3. After 55 minutes or more have elapsed since performing step (*1), turn the ignition switch off.*3

  4. Perform steps (*1) through (*3) again.

  5. Check for DTCs again Click here.


  1. DATA LIST

    Tech Tips

    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.

      Engine and ECT
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      A/T Oil Temperature 1

      No. 1 ATF temperature sensor value/

      Min.: -40°C (-40°F)

      Max.: 150°C (302°F)


      • Approx. 80°C (176°F): After stall test

      • Equal to ambient temperature when cold soak

      If the value -40°C (-40°F) or 150°C (302°F), No. 1 ATF temperature sensor circuit is open or shorted.

      Tech Tips

      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

      Tech Tips

      If a circuit related to the No. 1 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.

PROCEDURE


  1. CHECK OTHER DTCS OUTPUT (IN ADDITION TO DTC P0711)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    5. Read the DTCs using the GTS.

      Result
      Result Proceed to
      Only DTC P0711 is output A
      P0711 and other DTCs are output B

      Tech Tips

      If any other codes besides P0711 are output, perform troubleshooting for those DTCs first.


    B
    A
  2. CHECK TRANSMISSION FLUID LEVEL


    1. Check the transmission fluid level Click here.

      OK
      Automatic transmission fluid level is correct.

    OK
    NG