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AUTOMATIC TRANSAXLE SYSTEM, Diagnostic DTC:P0711

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

The ATF (Automatic Transmission Fluid) temperature sensor converts the fluid temperature into a resistance value which is input into the ECM.

DTC No. DTC Detection Condition Trouble Area
P0711

Condition A (2-trip detection logic):

First, ECM checks for following conditions:

(a) 19 minutes or more after engine is started and after 7 km (4.3 miles) or more of driving, ECT is -15°C (5°F) or more

(b) After starting engine and certain period of time has elapsed, ECT and IAT are -10°C (14°F) or more

If conditions are met, ECM then checks if ATF temperature is less than 10°C (50°F). If so, the ECM interprets this as a fault, illuminates the MIL and stores the DTC.

Condition B (2-trip detection logic):

First, ECM checks for following conditions:

(a) ECT is 60°C (140°F) or more

(b) After starting engine and certain period of time has elapsed, ECT is less than 35°C (95°F)

If conditions are met, ECM then checks if ATF temperature is 100°C (212°F) or more. If so, the ECM interprets this as a fault, illuminates the MIL and stores the DTC.

 Transmission wire (ATF temperature sensor)
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MONITOR DESCRIPTION

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


If the conditions are met, the ECM then checks if the ATF temperature is less than 10°C (50°F). If so, the ECM interprets this as a fault, illuminates the MIL and stores the DTC.


If the conditions are met, the ECM then checks if the ATF temperature is 100°C (212°F) or more. If so, the ECM interprets this as a fault, illuminates the MIL and stores the DTC.

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WIRING DIAGRAM

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INSPECTION PROCEDURE

Tip:

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.


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  1. READ DATA LIST


    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 on the Intelligent tester.

    6. Select the item "Enter /Powertrain / Engine and ECT / Data List".

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

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      A/T Oil Temperature 1 ATF Temp. Sensor Value/min.: -40°C (-40°F), max.: 215°C (419°F)

      • After Stall Test; Approx. 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 opened or shorted.
      Tip:

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

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

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

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

      If a circuit related to the ATF temperature sensor become open, P0713 is immediately set (in 0.5 second).

      When P0713 is set, P0711 cannot be detected.

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

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PROCEDURE


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


    1. Connect the Intelligent tester to the DLC3.

    2. Turn the engine switch on (IG) and push the Intelligent tester main switch on.

    3. Select the item "Enter / Powertrain / Engine and ECT / Trouble Codes".

    4. Read the DTCs using the Intelligent tester.

      Result
      Display (DTC output) Proceed to
      Only "P0711" is output A
      "P0711" and other DTCs B
      Tip:

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


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    CHECK TRANSMISSION FLUID LEVEL

    OK
    Automatic transmission fluid level is correct.

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    REPLACE TRANSMISSION WIRE (ATF TEMPERATURE SENSOR)Click here

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    GO TO GO TO DTC CHARTClick here

  5. Click here

    ADD FLUID