Conditions for Setting the DTC
WARNING: This page is about a different car, the 2016 Buick LaCrosse. However, it is still accessible from the selected car via links, so may be relevant.
B1025 01, B1035 01, B1045 01, B1055 01
The radio detects a short to voltage on the specified audio (+) or (-) circuit.
B1025 02, B1035 02, B1045 02, B1055 02
The radio detects a short to ground on the specified audio (+) or (-) circuit.
B1025 04, B1035 04, B1045 04, B1055 04
The radio detects an open on the specified audio (+) or (-) circuit.