CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM, Diagnostic DTC:P2820

DTC Code DTC Name
P2820 Pressure Control Solenoid "J" Performance or Stuck Off

DESCRIPTION

According to current control by the ECM, the shift solenoid valve SLP controls primary pulley pressure in accordance with the requested gear ratio to perform gear ratio changes.

DTC No.

DTC Detection Condition


  1. Diagnosis Condition

  2. Malfunction Status

  3. Malfunction Time

  4. Other

 Trouble Area
P2820

  1. The oil pressure sensor output value is 0.4 MPa (4.1 kgf/cm2, 58 psi) or more and the target gear ratio is less than 1.0.

  2. The actual gear ratio is 2.0 or more.

  3. 2 seconds or more

  4. 1 trip detection logic

Continuously variable transaxle assembly

(Shift solenoid valve SLP)

  1. The oil pressure sensor output value is 0.4 MPa (4.1 kgf/cm2, 58 psi) or more and the target gear ratio is 2.0 or more.

  2. The actual gear ratio is less than 0.5.

  3. 2 seconds or more

  4. 1 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 this DTC.

PROCEDURE


  1. CHECK DTC OUTPUT (IN ADDITION TO DTC P2820)


    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.

    5. Read the DTCs using the GTS.

      Result
      Result Proceed to
      Only DTC P2820 is output A
      DTC P2820 and other DTCs are output B

      Tech Tips

      If any other DTCs besides P2820 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

    Note


    • Performing reset memory/initialization will clear the learned value of the deceleration sensor (deceleration sensor zero point calibration) and the CVT oil pressure (CVT oil pressure calibration). Make sure to perform reset memory, deceleration sensor zero 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

      • Brake actuator assembly (Skid control ECU)

      • Oil pressure sensor

      • Deceleration sensor

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

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

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


    1. Using the GTS, perform the reset memory, deceleration sensor zero point calibration and CVT oil pressure calibration Click here.

    2. Check for DTCs again Click here.


    NEXT

    END