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Home >> Acura >> 2020 >> ILX >> Repair and Diagnosis >> External Pages >> Different car >> Section 51 (Automatic Transaxle - DTC Diagnostics (P0876 - U1260) (Except Hybrid)) >> DTC Troubleshooting >> DTC P2820, P2821 (A/T)

DTC P2820, P2821 (A/T)

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DTC P2820  : Clutch Pressure Control Solenoid Valve A Stuck OFF DTC P2821  : Clutch Pressure Control Solenoid Valve A Stuck ON

NOTE:  Before you troubleshoot, review the General Troubleshooting Information .

DTC Description Confirmed DTC Pending DTC Freeze Frame
P2820 Clutch Pressure Control Solenoid Valve A Stuck OFF      
P2821 Clutch Pressure Control Solenoid Valve A Stuck ON      

DTC (A/T)

  1. Problem verification

    -1. Raise the vehicle on a lift. Make sure it is securely supported, and allow all four wheels to rotate freely.

    -2. Turn the vehicle to the ON mode.

    -3. Clear the DTC with the HDS.

    -4. Test-drive under these conditions:

    DTC Test Condition
    P2820
    • Start the engine, disable the VSA .
    • Run the vehicle in D position/mode, then slow down and stop the vehicle.
    • While pressing the brake pedal, shift the transmission to R position/mode.
    P2821
    • Start the engine, disable the VSA , and warm it up until the ATF temperature reaches 32 deg.F (0 deg.C) or more.
    • Run the vehicle in 2nd gear with steady cruising with APP Sensor A (V) 1.4 V or lower.

    -5. Check for Pending or Confirmed DTCs with the HDS.

    DTC Description Confirmed DTC Pending DTC Freeze Frame
    P2820 Clutch Pressure Control Solenoid Valve A Stuck OFF      
    P2821 Clutch Pressure Control Solenoid Valve A Stuck ON      

    Is DTC P2820 or P2821 indicated?

    YES 

    The failure is duplicated. Replace the valve body assembly .

    NO 

    Intermittent failure, the system is OK at this time. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.