CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM, Diagnostic DTC:P2769, P2770

DTC Code DTC Name
P2769 Short in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL)
P2770 Open in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL)

DESCRIPTION

The ECM turns on or off solenoid SL to control the oil pressure applied to the lock up relay valve and turns the lock up on or off.

DTC No.

DTC Detection Condition


  1. Diagnosis Condition

  2. Malfunction Status

  3. Malfunction Time

  4. Other

 Trouble Area
P2769

  1. Lock up is operating

  2. Short in lock-up solenoid SL circuit

  3. Detected 1 time or more consecutively

  4. 1-trip detection logic

  • Wire harness or connector

  • Continuously variable transaxle assembly

  • ECM
P2770

  1. Lock up is operating

  2. Open in lock-up solenoid SL circuit

  3. Detected 1 time or more consecutively

  4. 1-trip detection logic

  • Wire harness or connector

  • Continuously variable transaxle assembly

  • ECM

MONITOR DESCRIPTION

These DTCs indicate an open or short in the lock-up solenoid SL circuit. When there is an open or short circuit in any shift solenoid valve circuits, the ECM detects the problem, illuminates the MIL and stores the DTC.

WIRING DIAGRAM

A0118K0E02

INSPECTION PROCEDURE

PROCEDURE


  1. INSPECT TRANSMISSION WIRE (LOCK-UP SOLENOID SL)


    1. A011BRAE15
      Text in Illustration
      *a

      Component without harness connected:

      (Transmission Wire)

      Disconnect the B14 transmission wire connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      10 (SL) - Body ground 20°C (68°F) 11 to 15 Ω

    NG

    Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)


    1. A01185NE25
      Text in Illustration
      *a

      Front view of wire harness connector:

      (to ECM)

      Connect the B14 transmission wire connector.

    2. Disconnect the ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      B8-58 (SL) - B8-105 (E1) 20°C (68°F) 11 to 15 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

  4. PERFORM INITIALIZATION

    Note


    • Performing reset memory/initialization will clear the learned values of both the yaw rate and acceleration sensor (deceleration sensor 0 point calibration) and the CVT oil pressure (CVT oil pressure calibration). Make sure to perform reset memory, yaw rate and acceleration sensor 0 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

      • Oil pressure sensor

      • Yaw rate and acceleration sensor

    • After reset memory, always perform yaw rate and acceleration sensor (deceleration sensor 0 point) calibration first, and then the CVT oil pressure calibration.

    • Always perform the 0 point calibration with the vehicle on level ground.

    • Do not shake or vibrate the vehicle during the 0 point calibration.


    1. Using the intelligent tester, perform the reset memory, deceleration sensor 0 point calibration and CVT oil pressure calibration Click here.

    2. Check for DTCs again Click here.


    NEXT

    END

  5. REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY


    1. Replace the continuously variable transaxle assembly Click here.


    NEXT

  6. PERFORM INITIALIZATION

    Note


    • Performing reset memory/initialization will clear the learned values of both the yaw rate and acceleration sensor (deceleration sensor 0 point calibration) and the CVT oil pressure (CVT oil pressure calibration). Make sure to perform reset memory, yaw rate and acceleration sensor 0 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

      • Oil pressure sensor

      • Yaw rate and acceleration sensor

    • After reset memory, always perform yaw rate and acceleration sensor (deceleration sensor 0 point) calibration first, and then the CVT oil pressure calibration.

    • Always perform the 0 point calibration with the vehicle on level ground.

    • Do not shake or vibrate the vehicle during the 0 point calibration.


    1. Using the intelligent tester, perform the reset memory, deceleration sensor 0 point calibration and CVT oil pressure calibration Click here.

    2. Check for DTCs again Click here.


    NEXT

    END