DTC    P0717/67    Input Speed Sensor Circuit No Signal

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DESCRIPTION

A111679E03
The 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 speed sensor (SP2).
By comparing the speed sensor (NC0) signal with the speed sensor (SP2) signal, the ECM detects the shift timing of the gears and controls the engine torque and hydraulic pressure according to various conditions. As a result, the gears shift smoothly.

DTC No.
DTC Detection Condition
Trouble Area
P0717/67
  1. All conditions below are detected for 5 sec. or more
    (1 trip detection logic*1, 2 trip detection logic*2):
    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 No. 1 vehicle speed sensor are operating normally
  1. Open or short in speed sensor (NC0) circuit
  2. Speed sensor (NC0)
  3. ECM
  1. *1: w/ Secondary Air Injection System
  2. *2: w/o Secondary Air Injection System

MONITOR DESCRIPTION

The input speed sensor (NC0) detects the transmission input shaft speed. The ECM 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 ECM will conclude that there is a malfunction in the input speed sensor (NC0). The ECM will illuminate the MIL and set the DTC.

WIRING DIAGRAM


C155187E14


INSPECTION PROCEDURE

1.CHECK SPEED SENSOR (NC0) (INSTALLATION)


    C159067E02
  1. 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 SPEED SENSOR (NC0)
C159420E07
  1. Disconnect the T6 sensor connector from the transmission.



  1. Measure the resistance of the sensor.

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

    HINT:
    C169050E04
    Reference: Inspect using an oscilloscope.
    Check the waveform of the ECM connector.

    OK:
    Refer to illustration
    Item
    Content
    Tester Connection
    E11-34 (NC0+) - E11-26 (NC0-)
    Tool Setting
    5 V/DIV, 0.5 msec./DIV.
    Condition
    Engine is idling


NG
REPLACE SPEED SENSOR
OK


3.CHECK WIRE HARNESS (SPEED SENSOR (NC0) - ECM)


    C117621E29
  1. Disconnect the E11 ECM connector.

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

    Standard resistance:
    Tester Connection
    Condition
    Specified Condition
    E11-34 (NC0+) - E11-26 (NC0-)
    20°C (68°F)
    560 to 680 Ω
    E11-34 (NC0+) - Body ground
    20°C (68°F)
    10 kΩ or higher
    E11-26 (NC0-) - Body ground
    20°C (68°F)
    10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE ECM