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Home >> GMC >> 2021 >> Acadia SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 192 (Driver Assistance Systems) >> Diagnostic Information and Procedures >> DTC B1A05 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2020 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify there are no DTCs set, except for DTC B1A05.
    • Go to next step: If no other DTCs are set 
  3. Verify DTC B1A05 is not set
    • If DTC B1A05 is set 

      Replace the K124 Active Safety Control Module.

    • Go to next step: If DTC B1A05 is not set 
  4. All OK.
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