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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 341 (Theft Deterrent System) >> Diagnostic Information and Procedures >> DTC B291B: Content Theft Deterrent Sensor >> Diagnostic Aids

Diagnostic Aids

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

Before performing any diagnostic procedures, ensure the sensor is properly connected and arm the theft system. After the system has been armed long enough to have performed the tests within the system, disarm the theft system and attempt to clear the DTC.

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