CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM, Diagnostic DTC:P0746, P0776

DTC Code DTC Name
P0746 Pressure Control Solenoid "A" Performance (Shift Solenoid Valve DS1)
P0776 Pressure Control Solenoid "B" Performance (Shift Solenoid Valve DS2)

DESCRIPTION

The ECM uses each solenoid to perform gear ratio changes and control line pressure. Shift solenoid valves DS1 and DS2 control gear ratio changes. Shift solenoid valve SLS controls belt clamping pressure.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P0746 Pressure Control Solenoid "A" Performance (Shift Solenoid Valve DS1)

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


  1. The engine is warmed up, and with the shift lever in D, the vehicle is accelerating.

  2. The actual gear ratio is higher than the target.

  3. 2 seconds

  4. 2 trip detection logic


  1. The engine is warmed up, and with the shift lever in D, the vehicle is decelerating or stopped.

  2. The actual gear ratio is lower than the target.

  3. 1 second

  4. 2 trip detection logic

 Continuously variable transaxle assembly Comes on DTC stored
P0776 Pressure Control Solenoid "B" Performance (Shift Solenoid Valve DS2)

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


  1. The engine is warmed up, and with the shift lever in D, the vehicle is decelerating or stopped.

  2. The actual gear ratio is lower than the target.

  3. 1 second

  4. 2 trip detection logic


  1. The engine is warmed up, and with the shift lever in D, the vehicle is accelerating.

  2. The actual gear ratio is higher than the target.

  3. 2 seconds

  4. 2 trip detection logic

 Continuously variable transaxle assembly Comes on DTC stored

MONITOR DESCRIPTION

The ECM compares the actual gear ratio with the target gear ratio. When the actual gear ratio and target gear ratio are different, the ECM detects the problem, illuminates the MIL and stores the DTC.

CAUTION / NOTICE / HINT

Note


  • Perform initialization when parts related to the continuously variable transaxle are replaced.

    Click here

  • Check that no DTCs are stored after performing initialization.

    Click here

PROCEDURE


  1. CHECK DTC OUTPUT (IN ADDITION TO DTC P0746 AND P0776)


    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 / Trouble Codes.


      Powertrain > Engine and ECT > Trouble Codes

    5. Read the DTCs using the GTS.

      Result
      Proceed to
      Only P0746 and P0776 are output
      P0746 or P0776 and other DTCs are output

      Tech Tips

      If any other DTCs besides P0746 and P0776 are output, perform troubleshooting for those DTCs first.


    P0746 or P0776 and other DTCs are output

    GO TO DTC CHART Click here

    Only P0746 and P0776 are output

  2. REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY


    1. Replace the continuously variable transaxle assembly.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    PERFORM INITIALIZATION Click here