СИСТЕМА АВТОМАТИЧЕСКОЙ ТРАНСМИССИИ, Diagnostic DTC:P0717, P07BF, P07C0

DTC Code DTC Name
P0717 Input/Turbine Speed Sensor "A" Circuit No Signal
P07BF Input/Turbine Speed Sensor "A" Circuit Low
P07C0 Input/Turbine Speed Sensor "A" Circuit High

DESCRIPTION

The transmission revolution sensor (NT) detects the input shaft rotation speed and sends it to the TCM.

Based on the transmission revolution sensor (NT) signal and the transmission revolution sensor (SP2) signals, the TCM controls engine torque and shift timing. Based on the input shaft rotation speed and the engine speed signal, lock-up control is performed.

DTC No.

DTC Detection Condition


  1. Diagnosis Condition

  2. Malfunction Status

  3. Malfunction Time

  4. Other

 Trouble Area
P0717

  1. Battery voltage is 9.5 V or higher, engine speed is more than 400 rpm, output speed is 300 rpm or more and number of output speed sensor signal pulse is 30 times.

  2. Transmission revolution sensor (NT) signal is no signal

  3. Malfunction status occurs 100 times per trip

  4. 1-trip detection logic

  • Harness or connector

  • Transmission wire

  • Transmission revolution sensor (NT)

  • TCM
P07BF

  1. Battery voltage is 9.5 V or higher.

  2. Transmission revolution sensor (NT) input voltage is below 0.2199 V.

  3. 0.5 seconds

  4. 1-trip detection logic
P07C0

  1. Battery voltage is 9.5 V or higher.

  2. Transmission revolution sensor (NT) input voltage is higher than 2.6637 V.

  3. 0.5 seconds

  4. 1-trip detection logic

MONITOR DESCRIPTION

The transmission revolution sensor (NT) detects the input shaft speed. The TCM calculates gear shifts comparing the transmission revolution sensor (NT) with the transmission revolution sensor (SP2).

If the TCM detects no signal from the transmission revolution sensor (NT) even while the vehicle is moving, it will conclude that is a malfunction of the transmission revolution sensor (NT). The TCM will illuminate the MIL and store a DTC.

WIRING DIAGRAM

A01X9U4E11
*a Transmission Revolution Sensor (NT)
*b Transmission Wire

CAUTION / NOTICE / HINT

Note

Perform registration and/or initialization when parts related to the automatic transmission are replaced Click here.

Tech Tips

After performing repair, clear the DTCs and perform the following procedure to check that DTCs are not output.


  1. Perform the D Position Shift Test inspection in Road Test Click here.

  2. Check for DTCs again Click here.


  1. DATA LIST

    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.

    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.


    1. Warm up the engine.

    2. Turn the engine switch off.

    3. Connect the GTS to the DLC3.

    4. Turn the engine switch on (IG).

    5. Turn the GTS on.

    6. Enter the following menus: Powertrain / ECT / Data List / SPD (NT).

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

      ECT
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      SPD (NT)

      Input shaft speed/

      Min.: 0 rpm

      Max.: 12750 rpm

      • Equal to engine speed: Lock-up on (after warming up engine)

      • Nearly equal to engine speed: Lock-up off (idling with shift lever in N)

      		 Data is displayed in increments of 50 rpm.

      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 malfunction, improper installation, or intermittent connection malfunction in the circuit.

PROCEDURE


  1. READ VALUE USING GTS (SPD (NT) AND NT SENSOR VOLTAGE)


    1. Turn the engine switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the engine switch on (IG).

    4. Turn the GTS on.

    5. Enter the following menus: Powertrain / ECT / Data List / SPD (NT), NT Sensor Voltage.

    6. According to the display on the GTS, read the Data List.

      ECT
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      SPD (NT)

      Input shaft speed/

      Min.: 0 rpm

      Max.: 12750 rpm

      • Equal to engine speed: Lock-up on (after warming up engine)

      • Nearly equal to engine speed: Lock-up off (idling with shift lever in N)

      		 Data is displayed in increments of 50 rpm.
      NT Sensor Voltage

      NT sensor voltage/

      Min.: 0 V

      Max.: 5 V

      • 1.182 to 1.622 V: High current

      • 0.391 to 0.814 V: Low current

      		 -
      Result
      Result Proceed to
      Data List value is not within the normal condition A
      Data List value is within the normal condition B

    B

    REPLACE TCM Click here

    A

  2. CHECK TRANSMISSION REVOLUTION SENSOR TERMINAL (NT TERMINAL)


    1. A01X0CIE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Transmission Wire)

      Disconnect the transmission wire connector.

    2. Turn the engine switch on (IG).

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      C171-17 (NTB) - Body ground Engine switch on (IG) 11 to 14 V

    4. Turn the engine switch off.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      C171-18 (NTO) - Body ground Always 99 to 101 Ω

    NG

    CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - TCM) Click here

    OK

  3. INSPECT TRANSMISSION WIRE (TRANSMISSION REVOLUTION SENSOR (NT))


    1. A01X4XGE05
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Transmission Revolution Sensor (NT))
      *b

      Component without harness connected

      (Transmission Wire)

      Disconnect the transmission revolution sensor (NT) connector Click here.

    2. Disconnect the transmission wire connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Terminal 1 of the transmission revolution sensor (NT) connector - 17 (NTB) Always Below 1 Ω
      Terminal 2 of the transmission revolution sensor (NT) connector - 18 (NTO) Always Below 1 Ω
      Terminal 1 of the transmission revolution sensor (NT) connector or 17 (NTB) - Body ground Always 10 kΩ or higher
      Terminal 2 of the transmission revolution sensor (NT) connector or 18 (NTO) - Body ground Always 10 kΩ or higher

    OK

    REPLACE TRANSMISSION REVOLUTION SENSOR (NT) Click here

    NG

    REPAIR OR REPLACE TRANSMISSION WIRE Click here

  4. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - TCM)


    1. Disconnect the C171 transmission wire connector.

    2. Disconnect the A81 TCM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      C171-17 (NTB) - A81-7 (NTB) Always Below 1 Ω
      C171-18 (NTO) - A81-8 (NTO) Always Below 1 Ω
      C171-17 (NTB) or A81-7 (NTB) - Body ground Always 10 kΩ or higher
      C171-18 (NTO) or A81-8 (NTO) - Body ground Always 10 kΩ or higher

    OK

    REPLACE TCM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR