CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM, Diagnostic DTC:P2767

DTC Code DTC Name
P2767 Input / Turbine Speed Sensor "B" Circuit No Signal

DESCRIPTION

The ECM detects the input shaft rotation speed based on the signal from the primary pulley speed sensor (transmission revolution sensor (NIN)) and performs gear ratio change control.

DTC No.

DTC Detection Condition


  1. Diagnosis Condition

  2. Malfunction Status

  3. Malfunction Time

  4. Other

 Trouble Area
P2767

  1. Driving with shift lever in D and output shaft speed 300 rpm or more (vehicle speed is approximately 7 km/h (4 mph) or more)

  2. Transmission revolution sensor (NIN) value is less than 300 rpm

  3. 2 seconds

  4. 1 trip detection logic

  • Wire harness or connector

  • Transmission revolution sensor (NIN)

  • ECM

MONITOR DESCRIPTION

The ECM receives a signal from the primary pulley speed sensor (transmission revolution sensor (NIN)) installed in the continuously variable transaxle and determines the input shaft speed in order to control the gear ratio. If the ECM detects no signal from the primary pulley speed sensor even while the vehicle is moving, it will conclude that there is a malfunction in the primary pulley speed sensor. The ECM will illuminate the MIL and store the DTC.

WIRING DIAGRAM

A005LORE32
*a Transmission Revolution Sensor (NIN)

PROCEDURE


  1. READ VALUE USING GTS (SPD (NIN))


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine and ECT / Data List.

    5. In accordance with the display on the GTS, read the Data List.

      Engine and ECT
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      SPD (NIN)

      Primary pulley speed (NIN)/

      min.: 0 rpm

      max.: 12750 rpm

      • 0 rpm: Vehicle stopped

      • Primary pulley speed (NIN) equal to engine speed(NE): Lock-up ON (After warming up engine)

      		 Data is displayed in increments of 50 rpm.
      Lock Up

      Lock-up/

      OFF or ON

      • ON: Lock-up operating

      • OFF: Lock-up not operating

      		 -
      Result
      Result Proceed to
      Data displayed is not within Normal Condition range A
      Data displayed is within Normal Condition range B

    B

    REPLACE ECM Click here

    A

  2. INSPECT TRANSMISSION REVOLUTION SENSOR (NIN)


    1. A005GOSE10
      Text in Illustration
      *a

      Component without wire harness connected:

      (Transmission Revolution Sensor (NIN))

      Disconnect the transmission revolution sensor (NIN) connector.

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

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

    3. Connect the transmission revolution sensor (NIN) connector.


    NG

    REPLACE TRANSMISSION REVOLUTION SENSOR (NIN) Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (TRANSMISSION REVOLUTION SENSOR (NIN) - ECM)


    1. Disconnect the ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      B23-127 (NIN+) - B23-128 (NIN-) 20°C (68°F) 560 to 680 Ω
      B23-127 (NIN+) - Body ground and other terminals Always 10 kΩ or higher
      B23-128 (NIN-) - Body ground and other terminals Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

  5. PERFORM INITIALIZATION

    Note


    • Performing reset memory/initialization will clear the learned value of the deceleration sensor (deceleration sensor zero point calibration) and the CVT oil pressure (CVT oil pressure calibration). Make sure to perform reset memory, deceleration sensor zero point calibration, and CVT oil pressure calibration when replacing any of the parts shown in the following table:

      Replaced Part

      • Continuously variable transaxle assembly

      • ECM

      • Brake actuator assembly (Skid control ECU)

      • Oil pressure sensor

      • Deceleration sensor

    • After reset memory, always perform deceleration sensor (deceleration sensor zero point) calibration first, and then the CVT oil pressure calibration.

    • Always perform the zero point calibration with the vehicle on level ground.

    • Do not shake or vibrate the vehicle during the zero point calibration.


    1. Using the GTS, perform the reset memory, deceleration sensor zero point calibration and CVT oil pressure calibration Click here.

    2. Check for DTCs again Click here.


    NEXT

    END