Action Taken When the DTC Sets
WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
- P27A7, P27A8, P27A9, P27AA, P27AB, P27AC or P27AD are Type A DTCs.
- TCM will default to predetermined solenoid current vs. pressure values stored in memory.