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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (A760H Automatic Transaxle) >> Automatic Transmission System >> DTC P0711 Transmission Fluid Temperature Sensor "A" Performance >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different variant/trim than selected.
  1. DATA LIST 

    HINT:

    Using the Techstream 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 Techstream to the DLC3.
    4. Turn the engine switch on (IG) position.
    5. Turn the Techstream on.
    6. Select the item "Powertrain / Engine and ECT / Data List".
    7. According to the display on the tester, read the "Data List".
      MEASUREMENT ITEM CHART

      Item Measurement Item/ Range (display) Normal Condition
      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

      HINT:

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

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

      Measure the resistance between terminal OIL and body ground.

      MALFUNCTION CHART

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

      HINT:

      If a circuit related to the ATF temperature sensor becomes 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.

  1. CHECK OTHER DTCS OUTPUT (IN ADDITION TO DTC P0711) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG) position and push the Techstream main switch ON.
    3. When you use Techstream:

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

    4. Read the DTCs using the Techstream.

      Result 

      RESULT CHART

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

      HINT:

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

    B: GO TO DTC CHART 

    A: Go to next step 

  2. CHECK TRANSMISSION FLUID LEVEL 

    OK: 

    Automatic transmission fluid level is correct. 

    NG: ADD FLUID 

    OK: REPLACE TRANSMISSION WIRE 

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