Conditions for Setting the DTC
WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
B245C 01
The telematics communication interface control module detects a short to voltage on the audio signal (+) or (-) circuit.
B245C 02
The telematics communication interface control module detects a short to ground on the audio signal (+) or (-) circuit.
B245C 04
The telematics communication interface control module detects an open on the audio signal (+) or (-) circuit.