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Home >> Lexus >> 2017 >> ES 350 >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission (Diagnostic Codes & Circuit Tests) >> Automatic Transaxle System >> DTC P0717: Input Speed Sensor Circuit No Signal; DTC P07BF: Input/Turbine Speed Sensor "A" Circuit Low; DTC P07C0: Input/Turbine Speed Sensor "A" Circuit High [07/2015 - ] >> Procedure

DTC P0717: Input Speed Sensor Circuit No Signal; DTC P07BF: Input/Turbine Speed Sensor "A" Circuit Low; DTC P07C0: Input/Turbine Speed Sensor "A" Circuit High [07/2015 - ]: Procedure

  1. INSPECT TRANSMISSION REVOLUTION SENSOR (SPEED SENSOR INSTALLATION) 
    1. Remove the valve body assembly.
    2. Make sure that the connector is properly connected, and check the speed sensor installation (Refer to INSTALLATION [07/2015 - ] ).
      GTY310096Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK

      The installation bolt is tightened properly and there is no clearance between the sensor and transaxle case.

    Result:  NG

    NG 

    REPAIR OR REPLACE TRANSMISSION REVOLUTION SENSOR 

    (Refer to COMPONENTS [07/2015 - ] )

    Result:  OK

    OK 

    See step  2

  2. INSPECT TRANSMISSION WIRE 
    1. Remove the TCM.
      GTY633297Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the speed sensor connector from the transmission wire.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      1 (NTB) sensor side - 1 (NTB) TCM side Always Below 1 Ω
      2 (NTO) sensor side - 2 (NTO) TCM side Always Below 1 Ω
      1 (NTB) sensor side - Body ground and other terminals Always 10 kΩ or higher
      2 (NTO) sensor side - Body ground and other terminals Always 10 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Transmission Wire)
      *b TCM Side
      *c Sensor Side

    Result:  NG

    NG 

    REPLACE TRANSMISSION WIRE 

    (Refer to COMPONENTS [07/2015 - ] )

    Result:  OK

    OK 

    See step  3

  3. REPLACE TRANSMISSION REVOLUTION SENSOR 

    (Refer to COMPONENTS [07/2015 - ] )

    Result:  NEXT

    NEXT 

    See step  4

  4. CHECK IF DTC OUTPUT RECURS (SEE IF DTC P0717, P07BF AND/OR P07C0 OUTPUT AGAIN) 
    1. Connect the Techstream to the DLC3.
    2. Start the engine and turn the Techstream on.
    3. Clear the DTCs (Refer to DTC CHECK / CLEAR [07/2015 - ] ).

      HINT: 

      Write down the currently output DTCs before clearing them.

    4. Perform the monitor drive pattern (Refer to MONITOR DRIVE PATTERN [07/2015 - ] ).
    5. Enter the following menus: Powertrain / ECT / Trouble Codes.
    6. Read the DTCs using the Techstream.

      Result

      Display (DTC Output) Proceed to
      Only DTC P0717, P07BF or P07C0 is output A
      No output B

    Result:  A

    A 

    REPLACE TCM 

    (Refer to COMPONENTS [07/2015 - ] )

    Result:  B

    B 

    END 

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