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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 212 (Sunroof) >> Diagnostic Information and Procedures >> DTC B19EE >> 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 B19EE 54 is not set.
    • If DTC B19EE 54 is set 
    1. Calibrate the K61 Sunroof Control Module. Refer to K61 Sunroof Control Module: Programming and Setup .
    2. Verify DTC B19EE 54 is not set while operating the sunroof.
      • If DTC B19EE 54 is set

        replace the M81 Sunroof Sunshade Motor.

      • Go to next step: If DTC B19EE 54 is not set
    3. ALL OK.
    • Go to next step: If DTC B19EE 54 is not set
  3. Verify DTC B19EE 49 is not set
    • If DTC B19EE 49 is set 

      replace the M81 Sunroof Sunshade Motor.

    • Go to next step: If DTC B19EE 49 is not set 
  4. ALL OK.
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