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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 >> DTC B291A: Content Theft Deterrent Assembly >> Circuit/System Testing

Circuit/System Testing

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.
  1. Ignition ON.
  2. Verify DTC B291A is not set.
    • If the DTC is set 

      Test or replace the P25 Power Sounder Content Theft Deterrent Alarm Module.

    • If the DTC is not set 
  3. All OK.
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