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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 247 (Theft Deterrent System) >> Diagnostic Information and Procedures >> Theft Deterrent Alarm Malfunction >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

The content theft deterrent system uses the power sounder to provide an audible alert when in the alarm mode. The power sounder receives a constant B+ and ground. The body control module commands the power sounder via serial data. The power sounder is also equipped with a battery backup. If the power sounder is disconnected while the ignition is OFF, the battery backup will allow the power sounder to sound the audible content theft deterrent alert.

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