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Circuit/System Verification

WARNING: This page is about a different car, the 2020 Buick Regal TourX, 2020 Buick Regal, 2019 Buick Regal TourX, and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, A11 radio ON.
  2. Verify station reception is normal when tuned to several known good FM stations.
    • If FM reception is poor. 

      Refer to Circuit/System Testing

    • Go to next step: If reception is normal. 
  3. Verify DTC B125A is not set as current.
    • If DTC B125A is set as current. 

      Refer to Circuit/System Testing

    • I Go to next step: If DTC B125A is not set as current. 
  4. All OK.