Home >> Chevrolet >> 2018 >> Equinox L >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 6T40 (MNH MNK) Or 6T45 (MHG) - Diagnostic Information And Procedures >> Diagnostic Information And Procedures >> DTC P2719, P2720, Or P2721: Pressure Control Solenoid Valve 4 Performance >> Conditions for Clearing the DTC