Conditions for Setting the DTC
WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
P16E1
B110 Battery Monitor Module detects a RAM memory fault.
P16E2
B110 Battery Monitor Module detects a ROM memory fault.
P16E3
B110 Battery Monitor Module is not using the correct configuration information it receives from the K20 Engine Control Module.