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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 189 (Cellular System, Entertainment System, And Navigation System - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC B12A7: Optical Media Drive Internal Electronic Failure/Optical Media Drive Build Variant Not Programmed >> Conditions for Setting the DTC

Conditions for Setting the DTC

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

B12A7 39 

The Media Disc Player reports an internal failure via serial data.

B12A7 45 

The Media Disc Player reports a variant mismatch via serial data.

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