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Home >> Pontiac >> 2008 >> Torrent Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 81 (Cellular System, Entertainment System & Navigation System) >> Diagnostic Information and Procedures >> DTC B1446 or B1447 >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2009 Pontiac Torrent and 2009 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.

The Back-up Battery (BUB) provides voltage to the communication interface module (CIM), to be able to successfully place a call in the event of a main battery disconnect during a collision event.

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