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Home >> Cadillac >> 2017 >> CT6 Plug-In >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> Cellular System, Entertainment System And Navigation System - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC B1277: Microphone 1 Input Signal Circuit (IO6 with CW1) >> Conditions for Running the DTC
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Conditions for Running the DTC

The Navigation control module performs a self diagnostic of the microphone circuits once after initial power up.

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