Diagnostic Aids

WARNING: This page is about a different car, the 2009 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

DTC C0895 may set when the vehicle is placed on a battery charger, on fast charge, for a long period of time. It may also be set by an intermittent charging system malfunction.
A low voltage DTC in multiple modules indicates a concern in the charging system.
A high or low voltage value in multiple modules indicates a concern in the charging system.