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Circuit/System Verification

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify no additional DTCs are set in other control modules.
    • Go to next step: If no additional DTCs are set 
  3. Verify that DTC C0574 01 or C0574 02 is not set.
    • If DTC C0574 01 or C0574 02 is set 
    1. Ignition OFF. Remove the parking brake control module fuse and reinstall. Ignition ON.
    2. Verify DTC C0574 01 or C0574 02 is not set.
      • If the DTC is set, replace the K83 Parking Brake Control Module.
      • Go to next step: If the DTC is not set
    3. All OK.
    • Go to next step: If DTC C0574 01 or C0574 02 is not set 
  4. Allow the K83 Parking Brake Control Module to cool down for 15 minutes.
  5. Verify the scan tool Calculated System Temperature parameter is less than 105° C.
    • If 105° C or greater 

      Replace the K83 Parking Brake Control Module.

    • Go to next step: If less than 105° C 
  6. All OK.
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