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Home >> Buick >> 2017 >> Envision Base >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> Cellular System, Entertainment System, And Navigation System >> Diagnostic Information and Procedures >> DTC B1446 or B1447: Backup Power Source >> DTC Descriptors

DTC Descriptors

DTC B1446: Replace Backup Power Source Below Minimum Threshold
DTC B1447: Backup Power Source Open Circuit

For symptom byte information refer to Symptom Byte List

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