DTC P2821
DTC P2821 : Line Pressure Solenoid Valve A Stuck ON
- If DTC P2821 is stored in the PCM, engine torque is restricted because of the fail-safe function.
| DTC Description | Confirmed DTC | Pending DTC | Freeze Frame |
|---|---|---|---|
| P2821 Line Pressure Solenoid Valve A Stuck ON |
DTC (A/T)
- ATF check
-1. Warm up the engine to normal operating temperature (the radiator fan comes on).
- 2. Make sure that the transmission is filled to the proper level, and check for fluid leaks.
- 3. Drain the ATF through a strainer. Inspect the strainer for metal debris or excessive clutch material.
Does the strainer have metal debris or excessive clutch material?
YES
Replace the transmission - Refer to: Automatic Transmission Removal and Installation (2014 2015) .
NO
Replace the ATF - Refer to: ATF Replacement (2014 2015), , then go to step 2.
- 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. Start the engine.
- 5. With the brake pedal pressed, shift to D, then release the brake pedal.
- 6. Monitoring the APP Sensor (%) with the HDS, press (2 % opened) and release (0 % opened) the accelerator pedal every 2 seconds. Then check the Line Pressure Sol VLV. A signal and the Line Pressure Pressure Switch signal with the HDS.
Signal Current conditions Values Unit APP Sensor (%) Line Pressure Sol VLV. A Line Pressure Pressure Switch Is the Line Pressure Pressure Switch ON when Line Pressure Sol VLV. A is ON, and OFF when Line Pressure Sol VLV. A is OFF?
YES
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.
NO
The failure is duplicated. Faulty line pressure solenoid valve A. Replace the secondary valve body (line pressure solenoid valve A) .