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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

(A) Both (a) and (b) are detected: (2-trip detection logic)

(a) Intake air and engine coolant temperatures are more than -10°C (14°F) at engine start

(b) After normal driving for over 19 min. and 9 km (6 mile) or more, ATF temp. is less than 20°C (68°F)

(B) When engine coolant temp. is less that 35°C (95°F) at engine start, the ATF temp. is 110°C (230°F) or more after 17 min. of engine start (2-trip detection logic).

 Transmission wire (ATF temperature sensor)
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MONITOR DESCRIPTION

The ATF temperature sensor converts the ATF temperature to 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 in 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, and turns on the MIL.

When the ATF temperature is 110°C (230°F) or more after 17 minutes of engine cold start, the ECM also determines this as a fault, turns on the MIL, and stores the DTC.

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WIRING DIAGRAM

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INSPECTION PROCEDURE

Tip:

Using 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 value listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether apart is faulty or not.


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  1. READ DATA LIST


    1. Warm up the engine.

    2. Turn the ignition switch off.

    3. Connect Intelligent tester to the DLC3.

    4. Turn the ignition switch on (IG).

    5. Turn on the tester.

    6. Select the item "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 Intelligent tester output is 150°C (302°F), there is a short circuit.

      When DTC P0713 is output and 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 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.

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PROCEDURE


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    CHECK OTHER DTCS OUTPUT (IN ADDITION TO DTC P0711)


    1. Connect Intelligent tester to the DLC3.

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

    3. When you use Intelligent tester:

      Select the item "Powertrain/ Engine and ECT / DTC / Current or Pending".

    4. Read the DTCs using Intelligent tester.

      Result
      Result Proceed to
      P0711 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 DTC CHARTClick here

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    ADD FLUID