AUTOMATIC TRANSAXLE SYSTEM, Diagnostic DTC:P0711

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

DESCRIPTION

The Automatic Transmission Fluid (ATF) temperature sensor converts the fluid temperature into a resistance value for use by the TCM.

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

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 TCM calculates the fluid temperature based on the voltage signal.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P0711 Transmission Fluid Temperature Sensor "A" Performance

Either condition is met: (2-trip detection logic)


  • (a) Certain monitor enabling conditions are met and the ATF temperature is below 20°C (68°F)

  • (b) Certain monitor enabling conditions are met and the ATF temperature is 110°C (230°F) or higher

 ATF temperature sensor Comes on DTC stored

MONITOR DESCRIPTION

This DTC indicates that there is a problem with output signals from the automatic transmission fluid (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 TCM 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 malfunction, illuminates the MIL and stores this DTC.

WIRING DIAGRAM

A018ICQE09
*1 ATF Temperature Sensor
*2 Transaxle Assembly

CAUTION / NOTICE / HINT

Note

If DTCs P0711 and P2610 are output simultaneously, confirm that the ATF temperature is as specified in "Normal Condition" using the GTS first. When the ATF temperature is as specified in "Normal Condition", perform troubleshooting for DTC P2610.

Click here

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.


  1. DATA LIST

    Note

    In the table below, the value listed under "Normal Condition" are reference values.


    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 / ECT / Data List.

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


      Powertrain > 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 speed test: Approximately 80°C (176°F)

      • While engine is cold:

        Equal to ambient temperature

      		 If value is -40°C (-40°F) or 150°C (302°F), ATF temperature sensor circuit is open or short circuited

      Powertrain > ECT > Data List
      Tester Display
      A/T Oil Temperature 1

      Tech Tips

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

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

      Measure the resistance between terminal THO1 (OT) and body ground.

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

      Tech Tips

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

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

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 / ECT / Trouble Codes.


      Powertrain > 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 DTCs other than P0711 are output, perform troubleshooting for those DTCs first.


    B

    GO TO DTC CHART Click here

    A

  2. CHECK TRANSMISSION FLUID LEVEL


    1. Check the transmission fluid level.

      Click here

      OK
      Automatic transmission fluid level is correct.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE ATF TEMPERATURE SENSOR Click here

    NG

    ADJUST FLUID LEVEL