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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 88 (Displays And Gauges) >> Diagnostic Information and Procedures >> DTC B19B0 >> 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 / Vehicle - In Service Mode
  2. Verify DTC B19B0 is not set.
    • If the DTC is set 
    1. Perform all necessary programming and setup procedures for the control module: P29 Head-Up Display
    2. Verify the DTC does not set.
      • If the DTC sets - Replace the component: P29 Head-Up Display
      • Go to next step: If the DTC is not set
    3. All OK.
    • Go to next step: If the DTC is not set 
  3. All OK.
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