СИСТЕМА БЕССТУПЕНЧАТОЙ ТРАНСМИССИИ, 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

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 Short in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL)

1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other


  1. Lock-up is operating.

  2. A short in the shift solenoid valve SL circuit is detected.

  3. Detected 1 time or more consecutively

  4. 1-trip detection logic

  • Wire harness or connector

  • Continuously variable transaxle assembly (Shift solenoid valve SL)

  • ECM

 Comes on DTC stored
P2770 Open in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL)

1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other


  1. Lock-up is operating.

  2. An open in the shift solenoid valve SL circuit is detected.

  3. Detected 1 time or more consecutively

  4. 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

B006PRFE04
*1 Shift Solenoid Valve SL
*2 Transmission Wire
*3 Continuously Variable Transaxle Assembly

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

Tech Tips

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


  1. Drive the vehicle and confirm the lock-up on and off conditions according to Road Test.

    Click here

  2. Check for DTCs again.

    Click here

PROCEDURE


  1. INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SL)


    1. B006NF0C26
      *a

      Component without harness connected

      (Transmission Wire)

      Disconnect the D35 transmission wire connector.

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

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

    3. Connect the D35 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 D1 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D1-40 (SL) - Body ground 20°C (68°F) 11 to 15 Ω

    3. Connect the D1 ECM connector.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSMISSION WIRE - ECM)

    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