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Home >> Chevrolet >> 2017 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 73 (Parking Brake System) >> Diagnostic Information and Procedures >> DTC C027D or C028D >> Circuit/System Verification

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 C027D or C028D is not set.
    • If the DTC is set 
    1. Verify the park brake cable is connected properly. Refer to Park Brake System Diagnosis 
    2. Check park brake pads for excessive wear. Refer to Disc Brake System Diagnosis
    3. Program the K83 Parking Brake Control Module.
    4. Ignition ON. Apply and release the park brake.
    5. Verify the DTC 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
    6. All OK.
    • Go to next step: If the DTC is not set 
  4. All OK.
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