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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 270 (Active Noise Cancellation System) >> Diagnostic Information and Procedures >> DTC B1277, B127C, or B127D: Microphone Input Signal Circuits >> Action Taken When the DTC Sets

Action Taken When the DTC Sets

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.

The active noise cancellation system is disabled.

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