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.
B1618 11
Short to ground on the voice recognition audio signal circuit. Test is run every 250 ms.
B1618 13
Open/high resistance on the voice recognition audio signal circuit. Test is run every 250 ms.