DTC P2821: Line Pressure Solenoid Valve A Stuck ON
WARNING: This page is about a different variant/trim than selected.
NOTE:
- Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, and review the General Troubleshooting Information (see GENERAL TROUBLESHOOTING INFORMATION ).
- If DTC P2821 is stored in the PCM, engine torque is restricted because of the fail-safe function.
- Warm up the engine to normal operating temperature (the radiator fan comes on).
- Make sure that the transmission is filled to the proper level, and check for fluid leaks.
- Drain the ATF (see ATF REPLACEMENT
) 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.
NO - Replace the ATF (see ATF REPLACEMENT ), then go to step 4.
- With SH-AWD: Raise the vehicle on a lift, make sure it is securely supported, and allow all four wheels to rotate freely.
Without SH-AWD: Block the rear wheels, and raise the front of the vehicle, make sure it is securely supported, and allow the front wheels to rotate freely, or raise the vehicle on a lift.
- Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
- Clear the DTC with the HDS.
- Start the engine. With the brake pedal pressed, shift to D, then release the brake pedal.
- Monitoring the APP Sensor (%) with the HDS in the A/T Data List, 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 in the A/T Data List.
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.
NO - Faulty line pressure solenoid valve A. Replace the secondary valve body (line pressure solenoid valve A) (see SECONDARY VALVE BODY REPLACEMENT ).