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.

A019MBUE22

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

The sensor resistance changes with the transmission fluid 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.

DTC Detection Condition


  1. Diagnosis Condition

  2. Malfunction Status

  3. Malfunction Time

  4. Other

 Trouble Area
P0711

  1. The intake air and engine coolant temperatures are more than -10°C (14°F) at engine start, and the vehicle is driven for 8 km (5 miles) or more, and 18 minutes 20 seconds or more have passed since the engine was started.

  2. ATF temperature is less than 20°C (68°F).

  3. 3 seconds

  4. 2 trip detection logic

  • ATF level

  • Transmission wire (ATF temperature sensor)

  1. The engine coolant temperature is less than 35°C (95°F) at engine start.

  2. ATF temperature is 110°C (230°F) or more when engine coolant temperature reaches 60°C (140°F)

  3. 3 seconds

  4. 2 trip detection logic

MONITOR DESCRIPTION

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 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 TCM interprets this as a fault, and turns on the MIL.

WIRING DIAGRAM

A019NQRE07

INSPECTION PROCEDURE

Tech Tips

Using the intelligent tester 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 engine switch off.

  3. Connect the intelligent tester to the DLC3.

  4. Turn the engine switch on (IG).

  5. Turn the intelligent tester on.

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

  7. According to the display on the intelligent tester, read the Data List.

    TCM
    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)

    • Equal to ambient temperature when cold soak

    		 If the value is "-40°C (-40°F)" or "215°C (419°F)", ATF temp. sensor circuit is open or shorted.

    Tech Tips

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

    When DTC P0713 is output and the intelligent tester 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 intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

    4. Enter the following menus: Powertrain / ECT / DTC.

    5. Read the DTCs using the intelligent tester.

      Result
      Display (DTC Output) Proceed to
      Only P0711 is output A
      P0711 and other DTC B

      Tech Tips

      If any other codes besides 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
      ATF level is correct.

    NG

    ADJUST FLUID LEVEL Click here

    OK

    REPLACE TRANSMISSION WIRE (ATF TEMPERATURE SENSOR) Click here