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 P171A, P171B, Or P171C: Transmission Fluid Pressure Accumulator Solenoid Valve Control Circuit >> Conditions for Running the DTC