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Conditions for Setting the DTC

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.

B125A 02 

The radio detects a short to ground in the antenna signal circuit center conductor.

B125A 04 

The radio detects an open in the antenna signal circuit center conductor.