ELECTRONIC CONTROLLED AUTOMATIC TRANSMISSION SYSTEM (for 1KD-FTV), Diagnostic DTC:P0717

DTC Code DTC Name
P0717 Input Speed Sensor Circuit No Signal

DESCRIPTION

A01E0AKE01

The O/D direct clutch speed sensor (NC0) detects the rotation speed of the O/D input shaft from the rotation speed of the O/D direct clutch drum. Its construction is the same as that of the No. 2 vehicle speed sensor (SP2).

By comparing the O/D direct clutch speed sensor (NC0) signal with the No. 2 vehicle speed sensor (SP2) signal, the TCM detects the shift timing of the gears and controls the engine torque and hydraulic pressure according to various conditions. As a result, smooth gear shift is achieved.

DTC No. DTC Detection Condition Trouble Area
P0717

  • All conditions below are detected for 5 sec. or more

    (2 trip detection logic):


    1. Gear changes not being performed

    2. Gear position: 1st, 2nd or 3rd

    3. Transmission input shaft rpm: less than 300 rpm

    4. Transmission output shaft rpm: 500 rpm or more

    5. Park/Neutral position switch: OFF

    6. Shift solenoid valve S1, S2, SL and vehicle speed sensor (SPD1) are operating normally

  • Open or short in O/D direct clutch speed sensor (NC0) circuit

  • O/D direct clutch speed sensor (NC0)

  • TCM

MONITOR DESCRIPTION

The input speed sensor (NC0) detects the transmission input shaft speed. The TCM determines the gear shift timing based on a comparison of the input speed sensor (NC0) (input shaft speed) with the output speed sensor (output shaft speed).

When the output shaft speed is higher than the expected value and the input shaft speed is 300 rpm or less while the vehicle is running with the shift lever on D, the TCM will conclude that there is a malfunction in the input speed sensor (NC0). The TCM will illuminate the MIL and set the DTC.

WIRING DIAGRAM

A01E06XE05

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK SPEED SENSOR (INSTALLATION)


    1. A01DY4HE15

      Check the speed sensor installation.

      OK
      Installation bolt is tightened properly and there is no clearance between sensor and transmission case.

    NG

    SECURELY INSTALL SPEED SENSOR OR REPLACE SPEED SENSOR

    OK

  2. INSPECT O/D DIRECT CLUTCH SPEED SENSOR


    1. A01E0OTE07

      Disconnect the T6 sensor connector from the transmission.

    2. Measure the resistance of the sensor.

      Standard resistance
      Tester Connection Condition Specified Condition
      1 - 2 20°C (68°F) 560 to 680 Ω

      Tech Tips

      Reference: Inspect using an oscilloscope.

      A01DZ48E01

      Check the waveform of the TCM connector.

      OK
      Refer to illustration
      Item Content
      Tester Connection T19-3 (NC0+) - T19-2 (NC0-)
      Tool Setting 5 V/DIV, 0.5 msec./DIV.
      Condition Engine is idling

    NG

    REPLACE O/D DIRECT CLUTCH SPEED SENSOR

    OK

  3. CHECK WIRE HARNESS (O/D DIRECT CLUTCH SPEED SENSOR - ECM)


    1. A01DWWJE02

      Disconnect the T19 TCM connector.

    2. Measure the resistance of the wire harness side connector.

      Standard resistance
      Tester Connection Condition Specified Condition
      T19-3 (NC0+) - T19-2 (NC0-) 20°C (68°F) 560 to 680 Ω
      T19-3 (NC0+) - Body ground 20°C (68°F) 10 kΩ or higher
      T19-2 (NC0-) - Body ground 20°C (68°F) 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

    REPLACE TCM