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Home >> Chevrolet >> 2021 >> Traverse Premier, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 47 (Cellular, Entertainment, And Navigation System) >> Diagnostic Information and Procedures >> DTC B2B15 >> Circuit/System Description
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Circuit/System Description

WARNING: This page is about a different car, the 2020 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

The K9 Body Control Module communicates with the K73 Telematic Control Module via serial data. This DTC indicates an internal fault in the K73 Telematic Control Module.