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

  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 set the DTC.

WIRING DIAGRAM

A01VIZ8E03

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (SPD (NIN))


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

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

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

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

      Primary pulley speed (NIN)/

      min.: 0 rpm

      max.: 12750 rpm

      • Vehicle stopped: 0 rpm

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

      		 Data is displayed in increments of 50 rpm.
      Result
      Result Proceed to
      Data display is not within Normal Condition range A
      Data display is within Normal Condition range B

    B

    REPLACE ECM Click here

    A

  2. INSPECT TRANSMISSION REVOLUTION SENSOR (NIN)


    1. A01VDW1E02
      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

    NG

    REPLACE TRANSMISSION REVOLUTION SENSOR (NIN) Click here

    OK

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


    1. Reconnect the transmission revolution sensor NIN connector.

    2. Disconnect the ECM connector.

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

      Standard Resistance (for LHD)
      Tester Connection Condition Specified Condition
      B22-127 (NIN+) - B22-128 (NIN-) 20°C (68°F) 560 to 680 Ω
      B22-127 (NIN+) - Body ground) Always 10 kΩ or higher
      B22-128 (NIN-) - Body ground Always 10 kΩ or higher
      Standard Resistance (for RHD)
      Tester Connection Condition Specified Condition
      B23-127 (NIN+) - B23-128 (NIN-) 20°C (68°F) 560 to 680 Ω
      B23-127 (NIN+) - Body ground) Always 10 kΩ or higher
      B23-128 (NIN-) - Body ground 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


    1. Perform the initialization Click here.

    2. Check for DTCs again Click here.


    NEXT

    END