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Home >> Toyota >> 2017 >> Highlander LE Plus, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission (UA80F) - Diagnostic Codes (P0500-31 - P0791-31) (Except Hybrid) >> Automatic Transaxle System >> DTC P0710-11: Transmission Fluid Temperature Sensor "A" Circuit Short To Ground [11/2016 - 10/2017] >> Procedure

DTC P0710-11: Transmission Fluid Temperature Sensor "A" Circuit Short To Ground [11/2016 - 10/2017]: Procedure

  1. READ VALUE USING TECHSTREAM 
    1. Warm up the engine.
    2. Turn the ignition switch off.
    3. Connect the Techstream to the DLC3.
    4. Turn the ignition switch to ON.
    5. Turn the Techstream on.
    6. Enter the following menus: Powertrain / Transmission / Data List / A/T Oil Temperature No. 1.
    7. Read the Data List according to the display on the Techstream.

      Powertrain > Transmission > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      A/T Oil Temperature No. 1 ATF temperature sensor value Min.: -40°C (-40°F)
      Max.: 150°C (302°F)
      • Approximately 80°C (176°F): After stall speed test
      • Equal to ambient temperature: When engine is cold
      If value is -40°C (-40°F) or 150°C (302°F), ATF temperature sensor circuit is open or shorted

      Powertrain > Transmission > Data List 

      Tester Display
      A/T Oil Temperature No. 1

      Result

      Result Proceed to
      Data List value is normal A
      Data List value is not normal B

    Result:  1

    See step  3

    Result:  2

    See step  2

  2. CHECK HARNESS AND CONNECTOR (ATF TEMPERATURE SENSOR - ECM) 
    1. Disconnect the C1 ECM connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      C1-86 (THO1) - C1-133 (ETHW) Always 79 Ω to 156 kΩ
      C1-133 (ETHW) - Body ground Always 10 kΩ or higher
      C1-86 (THO1) - Body ground Always 10 kΩ or higher

      HINT: 

      If the resistance is out of the specified range at any of the ATF temperatures shown in the table below, the driveability of the vehicle may decrease.

      ATF Temperature Specified Condition
      10°C (50°F) 5 to 8 kΩ
      25°C (77°F) 2.5 to 4.5 kΩ
      110°C (230°F) 0.22 to 0.28 kΩ

      Result

      Proceed to
      OK
      NG

    Result:  2

    NG 

    See step  4

    Result:  1

    OK 

    See step  3

  3. REPLACE ECM 
    1. Replace the ECM.

      Refer to COMPONENTS [11/2016 - ]

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    PERFORM REGISTRATION. Refer to  REGISTRATION [11/2016 - ] 

  4. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) 
    1. Disconnect the C62 transmission wire connector.
    2. Disconnect the C1 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      C62-1 (OT+) or C1-86 (THO1) - Body ground Always 10 kΩ or higher
      C62-2 (OT-) or C1-133 (ETHW) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result:  1

    OK 

    REPLACE TRANSMISSION WIRE (ATF TEMPERATURE SENSOR). Refer to  COMPONENTS [11/2016 - ] 

    Result:  2

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSMISSION WIRE - ECM)