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Home >> Toyota >> 2016 >> Corolla S, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 38 (Continuously Variable Transaxle - Diagnostic Codes (3 Of 3) & Circuit Tests (Model Code: ZRE172)) >> Continuously Variable Transaxle System >> DTC P0717, P07BF, P07C0; Input/Turbine Speed Sensor "A" Circuit No Signal [08/2016 - 08/2017] >> Procedure

DTC P0717, P07BF, P07C0; Input/Turbine Speed Sensor "A" Circuit No Signal [08/2016 - 08/2017]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. READ VALUE USING TECHSTREAM (SPD (NT) AND NT SENSOR VOLTAGE) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine and ECT / Data List / Primary.
    5. According to the display on the Techstream, read the Data List.

      Powertrain > Engine and ECT > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      SPD (NT) Input turbine speed min.: 0 rpm
      max.: 12750 rpm
      • Equal to engine speed (NE): Lock-up ON (After warming up engine)
      • Nearly equal to engine speed (NE): Lock-up OFF (Engine idling with shift lever in P or N)
      • 0 rpm: Vehicle stopped with shift lever in R
      		 Data is displayed in increments of 50 rpm.
      NT Sensor Voltage Input turbine speed (NT) sensor output voltage min.: 0.000 V
      max.: 4.999 V      		 0.1 to 1.9 V: Engine idling (Vehicle stopped with shift lever in P or N) -

      Powertrain > Engine and ECT > Data List 

      Tester Display
      SPD (NT)
      NT Sensor Voltage

      Result

      Result Proceed to
      Data List values are not normal A
      Data List values are normal B

    Result:  2

    B 

    See step  6

    Result:  1

    A 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) 
    1. Disconnect the B18 transmission wire connector.
    2. Disconnect the B33 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B18-8 (NTO) - B33-125 (NTO) Always Below 1 Ω
      B18-2 (NTB) - B33-126 (NTB) Always Below 1 Ω
      B33-16 (E1) - Body ground Always Below 1 Ω
      B18-8 (NTO) or B33-125 (NTO) - Body ground and other terminals Always 10 kΩ or higher
      B18-2 (NTB) or B33-126 (NTB) - Body ground and other terminals Always 10 kΩ or higher
    4. Connect the B33 ECM connector.
    5. Connect the B18 transmission wire connector.

      Result

      Proceed to
      OK
      NG

    Result:  2

    NG 

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

    Result:  1

    OK 

    See step  3

  3. CHECK ECM 
    1. Disconnect the B18 transmission wire connector.
      GTY451285Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Transmission Wire)
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      B18-2 (NTB) - Body ground Ignition switch ON 11 to 14 V
    4. Turn the ignition switch off.
    5. Connect the B18 transmission wire connector.
    6. Disconnect the B33 ECM connector.
      GTY440002Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (ECM)
    7. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B33-125 (NTO) - B33-16 (E1) Always 99 to 101 Ω

      Result

      Proceed to
      OK
      NG

    Result:  2

    NG 

    See step  5

    Result:  1

    OK 

    See step  4

  4. REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY 
    1. Replace the continuously variable transaxle assembly.

      When Not Using the Engine Support Bridge: Refer to COMPONENTS [08/2013 - ]

      When Using the Engine Support Bridge: Refer to COMPONENTS [08/2014 - ]

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    PERFORM INITIALIZATION. Refer to  INITIALIZATION [08/2016 - ] 

  5. REPLACE ECM 
    1. Replace the ECM.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    PERFORM INITIALIZATION. Refer to  INITIALIZATION [08/2016 - ] 

  6. REPLACE ECM 
    1. Replace the ECM.

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    PERFORM INITIALIZATION. Refer to  INITIALIZATION [08/2016 - ] 

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