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Home >> Cadillac >> 2019 >> CTS Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 123 (Cellular System, Entertainment System, And Navigation System - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC B12A1 >> DTC Descriptor
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DTC Descriptor

WARNING: This page is about a different car, the 2018 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
DTC B12A1 01

Audio Control Request Circuit Short to Battery

DTC B12A1 02

Audio Control Request Circuit Short to Ground

DTC B12A1 04

Audio Control Request Circuit Open

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