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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Cellular System, Entertainment System, And Navigation System - Diagnostic Information And Procedures - DTC & Symptoms >> Diagnostic Information and Procedures >> DTC B12A7: Optical Media Drive >> Circuit/System Description

Circuit/System Description

The Media Disc Player monitors itself for internal failures and reports its condition to the radio via serial data when in use.

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