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Home >> GMC >> 2021 >> Acadia SL >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Driver Assistance Systems >> Diagnostic Information and Procedures >> DTC B1A04 >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify there are no DTCs set, except for DTC B1A04.
    • Go to next step: If no other DTCs are set 
  3. Verify DTC B1A04 is not set
    • If DTC B1A04 is set 

      Replace the B174W Frontview Camera - Windshield.

    • Go to next step: If DTC B1A04 is not set 
  4. All OK.
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