Action Taken When the DTC Sets
WARNING: This page is about a different car, the 2016 Buick LaCrosse. However, it is still accessible from the selected car via links, so may be relevant.
DTCs P0C9E and P0C9F are Type B DTCs.
P0C9F
- The 14V power module stops supplying power to the 12V system.
- The charge indicator will illuminate.