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GMC
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2019
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Terrain SL
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Repair and Diagnosis
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External Pages
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Different car
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Section 137 (Cellular System, Entertainment System, And Navigation System - Diagnostic Information And Procedures)
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Diagnostic Information And Procedures
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DTC B1446 Or B1447: Backup Power Source (IO5/IO6/IOB)
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Diagnostic Fault Information
Diagnostic Fault Information
WARNING:
This page is about a different car, the 2018 GMC Terrain and 2018 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
Circuit
Short to Ground
Open/High Resistance
Short to Voltage
Signal Performance
Backup Battery B+
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B1447 04
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Backup Battery Low Reference
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B1447 04
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