Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.

When two or more sensors fail, the drive motor generator battery sends a message to the HPCM to reduce the power use limit to 50 percent and the battery vent fan will default to run.
If all four sensors fail, the state of charge (SOC) will be considered invalid.
DTCs P0A9C, P0A9D, P0A9E, P0AC6, P0AC7, P0AC8, P0ACB, P0ACC, P0ACD, P0AE9, P0AEB, and P0AEA are Type B DTCs.