AUTOMATIC TRANSMISSION SYSTEM, Diagnostic DTC:P0717

DTC Code DTC Name
P0717 Turbine Speed Sensor Circuit No Signal

DESCRIPTION

The input speed sensor NT inputs signal into the TCM as a signal of the input axis revolutions.

The TCM carries out shift timing control based upon signals from the input speed sensor NT and the output speed sensor SP2.

DTC No.

DTC Detection Condition


  1. Diagnosis Condition

  2. Malfunction Status

  3. Malfunction Time

  4. Other

 Trouble Area
P0717

  1. The shift solenoid valve (S1, S2, S3, S4, SR, SL1, SL2, SLT), output speed sensor SP2 and shift position sensor are normal.

    While the vehicle is driven with shift lever in D, when the input speed sensor NT revolutions calculated from the shift solenoid valve SP2 are 550 rpm or more. (2.5 seconds or more have elapsed after moving the shift lever to D. However, if there is a malfunction with the oil temperature sensor, or the oil temperature is 20°C (68°F) or less, then 10 seconds or more after moving the shift lever to D)

  2. While the shift solenoid valve SP2 outputs 12 pulses, the input speed sensor NT does not detect even 1 pulse.

  3. Detected 500 times consecutively.

  4. 1-trip detection logic

  • Input speed sensor NT

  • TCM

  • Harness and connector

MONITOR DESCRIPTION

This DTC indicates that pulse is not output from the input speed sensor NT or is output only little. The input speed sensor NT terminal of the TCM detects the revolving signal from input speed sensor NT (input RPM). The TCM outputs a gearshift signal comparing the input speed sensor NT with the output speed sensor SP2.

While the vehicle is operating in the shift position of D, the output shaft revolution is 550rpm or more*, the TCM detects the trouble, illuminates the MIL and stores the DTC.

*: The engine speed is 400 rpm or more.

WIRING DIAGRAM

A004H8KE09
*a Input Speed Sensor NT
*b Transmission Wire

CAUTION / NOTICE / HINT

Note

Perform the universal trip to clear permanent DTCs Click here.


  1. DATA LIST

    Tech Tips

    Using the GTS 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 ignition switch off.

    3. Connect the GTS to the DLC3.

    4. Turn the ignition switch ON.

    5. Turn the GTS on.

    6. Enter the following menus: Powertrain / ECT / Data List.

    7. According to the display on the GTS, read the "Data List".

      Item

      Measurement Item/

      Range (display)

      		 Normal Condition
      SPD (NT)

      Input shaft speed/

      Min.: 0 rpm

      Max.: 12,750 rpm

      Tech Tips

      Lock-up is


      • ON (after warming up engine): Input turbine speed (NT) is equal to engine speed

      • OFF (idling with shift lever on N): Input turbine speed (NT) is nearly equal to engine speed

      Tech Tips


      • SPD (NT) is always 0 while driving:

        Open or short in the sensor or circuit.

      • SPD (NT) is always more than 0 and less than 300 rpm while driving the vehicle at 50 km/h (31 mph) or more:

        Sensor trouble, improper installation, or intermittent connection trouble of the circuit.

PROCEDURE


  1. INSPECT SPEED SENSOR INSTALLATION


    1. A004IVRE02
      *1 Clearance

      Check the input speed sensor NT installation.

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

    NG

    SECURELY INSTALL SPEED SENSOR OR REPLACE SPEED SENSOR Click here

    OK

  2. INSPECT INPUT SPEED SENSOR NT


    1. Disconnect the L5 speed sensor connector.

    2. Perform inspection of the input speed sensor NT Click here.

    3. Connect the L5 speed sensor connector.


    NG

    REPLACE SPEED SENSOR (NT) Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (SPEED SENSOR - TCM)


    1. Disconnect the A19 TCM connector.

    2. Disconnect the L5 speed sensor connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance
      Tester Connection Condition Specified Condition
      L5-1(NT+) - A19-17(NT+) Always Below 1 Ω
      L5-2(NT-) - A19-28(NT-) Always Below 1 Ω
      L5-1(NT+) - Body ground Always 10 kΩ or higher
      L5-2(NT-) - Body ground Always 10 kΩ or higher

    4. Connect the A19 TCM connector.

    5. Connect the L5 speed sensor connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. REPLACE TCM


    1. Replace the TCM Click here.


    NEXT

    PERFORM THE RESET MEMORY