CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM, Diagnostic DTC:P0746, P0776, P2714

DTC Code DTC Name
P0746 Pressure Control Solenoid "A" Performance (Shift Solenoid Valve DS1)
P0776 Pressure Control Solenoid "B" Performance (Shift Solenoid Valve DS2)
P2714 Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT)

DESCRIPTION

The ECM uses each solenoid to perform gear ratio changes, and control belt clamping pressure, line pressure, and lock-up.

Shift solenoid valves DS1 and DS2 control gear ratio changes. Shift solenoid valve SLS controls belt clamping pressure. Shift solenoid valve SLT controls line pressure.

DTC No.

DTC Detection Condition


  1. Diagnosis Condition

  2. Malfunction Status

  3. Malfunction Time

  4. Other

 Trouble Area
P0746

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

  2. Up-shift is not possible. The actual gear ratio is higher than the target.

  3. 2 seconds

  4. 2 trip detection logic

 Continuously variable transaxle assembly

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

  2. Down-shift is not possible. The actual gear ratio is lower than the target.

  3. 1 second

  4. 2 trip detection logic
P0776

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

  2. Up-shift is not possible. The actual gear ratio is higher than the target.

  3. 2 seconds

  4. 2 trip detection logic

 Continuously variable transaxle assembly

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

  2. Down-shift is not possible. The actual gear ratio is lower than the target.

  3. 1 second

  4. 2 trip detection logic
P2714

  1. The vehicle speed is constant at a speed of 65 km/h (40 mph) or more and the target gear ratio is the lowest possible gear ratio.

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

  3. 1 second

  4. 2 trip detection logic

 Continuously variable transaxle assembly

  1. The vehicle is accelerating from a stop (before the vehicle speed exceeds 8 km/h (5 mph))

  2. The gear ratio is higher than the threshold.

  3. 0.2 seconds

  4. 2 trip detection logic

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.

PROCEDURE


  1. CHECK DTC OUTPUT (IN ADDITION TO DTC P0746, P0776 AND P2714)


    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 / DTC.

    5. Read the DTCs using the tester.

      Result
      Result Proceed to
      Only P0746, P0776 and/or P2714 is output A
      Only P0746, P0776, P2714 and/or P2829 is output
      P0746, P0776, P2714 and/or P2829 and other DTCs are output B

      Tech Tips

      If any other DTCs besides P0746, P0776, P2714 or P2829 are output, perform troubleshooting for those DTCs first.


    B

    GO TO DTC CHART Click here

    A

  2. REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY


    1. Replace the continuously variable transaxle assembly Click here.


    NEXT

  3. PERFORM INITIALIZATION


    1. Perform the initialization Click here.

    2. Check for DTCs again Click here.


    NEXT

    END