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Home >> GMC >> 2017 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Parking Brake System) >> Diagnostic Information and Procedures >> DTC C056E: Electronic Control Unit Software >> Circuit/System Verification
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Circuit/System Verification

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify that DTC C056E is not set.
    • If the DTC is set 
    1. Program the K83 Parking Brake Control Module.
    2. Verify the DTC is not set.
      • If the DTC is set, replace the K83 Parking Brake Control Module.
      • If the DTC is not set
    3. All OK.
    • If the DTC is not set 
  3. All OK.
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