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Home >> GMC >> 2007 >> Acadia SLT, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1189 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> Radio Controls Malfunction (Without Navigation) >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2013 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

The radio/HVAC controls are supplied battery voltage and ground . The radio/HVAC controls operate radio functions through serial data messages. .

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