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.

B1A36 11

The radio detects a short to ground in the microphone (+) signal circuit for 5 s or greater.

B1A36 13

The radio detects an open/high resistance in the microphone (+) signal circuit for 10 s or greater.