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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 328 (Active Noise Cancellation System) >> Diagnostic Information and Procedures >> DTC B1277, B127C, B127D, or B126F: Microphone Input Signal >> DTC Descriptors

DTC Descriptors

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
DTC B1277

Microphone 1 Input Signal Circuit

DTC B127C

Microphone 2 Input Signal Circuit

DTC B127D

Microphone 3 Input Signal Circuit

DTC B126F

Microphone 4 Input Signal Circuit

For symptom byte information refer to Symptom Byte List

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