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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 232 (Theft Deterrent System) >> Diagnostic Information and Procedures >> DTC B19F3 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify DTC B19F3 is not set.
    • If the DTC is set 

      Test or replace the P25 Content Theft Deterrent Alarm Module.

    • Go to next step: If the DTC is not set 
  3. All OK.
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