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Home >> GMC >> 2017 >> Acadia SL >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Cellular System, Entertainment System, And Navigation System >> Diagnostic Information and Procedures >> DTC B1277: Cellular Phone Microphone Circuit (IOB) >> DTC Descriptors

DTC Descriptors

DTC B1277 02: Cellular Phone Microphone Circuit Short to Ground
DTC B1277 04: Cellular Phone Microphone Circuit Open/High Resistance

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