DTC Descriptors
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- DTC B1277 01
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Microphone 1 (LF) Input Signal Circuit Short to Battery
- DTC B1277 02
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Microphone 1 (LF) Input Signal Circuit Short to Ground
- DTC B1277 04
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Microphone 1 (LF) Input Signal Circuit Open
- DTC B1277 1A
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Microphone 1 (LF) Input Signal Circuit Bias Level Out of Range
- DTC B127C 01
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Microphone 2 (RF) Input Signal Circuit Short to Battery
- DTC B127C 02
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Microphone 2 (RF) Input Signal Circuit Short to Ground
- DTC B127C 04
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Microphone 2 (RF) Input Signal Circuit Open
- DTC B127C 1A
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Microphone 2 (RF) Input Signal Circuit Bias Level Out of Range
- DTC B127D 01
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Microphone 3 (RR) Input Signal Circuit Short to Battery
- DTC B127D 02
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Microphone 3 (RR) Input Signal Circuit Short to Ground
- DTC B127D 04
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Microphone 3 (RR) Input Signal Circuit Open
- DTC B127D 1A
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Microphone 3 (RR) Input Signal Circuit Bias Level Out of Range