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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 231 (HVAC - Automatic) >> Diagnostic Information and Procedures >> DTC B2A7B-B2A7E >> Circuit/System Verification

Circuit/System Verification

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 B2A7B - B2A7E is not set.
    • If any of the DTCs are set 

      Replace the A26 Heater and Air Conditioning User Interface Controls - Front.

    • Go to next step: If none of the DTCs are set 
  3. A fault is not currently present and may be an intermittent condition.
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