CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM, Diagnostic DTC:P2769, P2770

DTC Code DTC Name
P2769 Torque Converter Clutch Solenoid Circuit Low
P2770 Torque Converter Clutch Solenoid Circuit High

DESCRIPTION

Based on the signal received by the shift solenoid valve SL, the ECM uses the shift solenoid valve SLU to control the lock-up clutch pressure.

If there is an open or short in the shift solenoid valve SL circuit, the ECM stops sending current to the malfunctioning shift solenoid valve.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P2769 Torque Converter Clutch Solenoid Circuit Low While the lock-up is operating, a short is detected in the shift solenoid valve SL circuit 1 time or more consecutively (1 trip detection logic).

  • Wire harness or connector

  • Continuously variable transaxle assembly (Shift solenoid valve SL)

  • ECM

 Comes on DTC stored
P2770 Torque Converter Clutch Solenoid Circuit High While the lock-up is operating, an open is detected in the shift solenoid valve SL circuit 1 time or more consecutively (1 trip detection logic).

  • Wire harness or connector

  • Continuously variable transaxle assembly (Shift solenoid valve SL)

  • ECM

 Comes on DTC stored

MONITOR DESCRIPTION

These DTCs indicate an open or short in the shift solenoid valve SL circuit. If there is an open or short in the shift solenoid valve SL circuit, the ECM detects the malfunction, illuminates the MIL and stores a DTC.

WIRING DIAGRAM

A004AXBE02

CAUTION / NOTICE / HINT

Note


  • Perform initialization after replacing any parts related to the continuously variable transaxle system.

    Click here


  • Check that no DTCs are stored after performing initialization.

    Click here

PROCEDURE


  1. INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SL)


    1. A0048QDC34
      *a

      Component without harness connected

      (Transmission Wire)

      Disconnect the B115 transmission wire connector.

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

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

    3. Connect the B115 transmission wire connector.

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY Click here

    OK

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


    1. Disconnect the B112*1 or B118*2 ECM connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Resistance (for LHD)
      Tester Connection Condition Specified Condition
      B112-67 (SL) - Body ground 20°C (68°F) 11 to 15 Ω
      Standard Resistance (for RHD)
      Tester Connection Condition Specified Condition
      B118-67 (SL) - Body ground 20°C (68°F) 11 to 15 Ω

    3. Connect the B112*1 or B118*2 ECM connector.


      • *1: for LHD

      • *2: for RHD

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    PERFORM INITIALIZATION Click here

  4. REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY


    1. Replace the continuously variable transaxle assembly.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    PERFORM INITIALIZATION Click here