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Home >> GMC >> 2024 >> Acadia AT4 >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brakes >> Diagnostic Information and Procedures >> DTC C0678: >> Circuit / System Verification

Circuit / System Verification

  1. Ignition / Vehicle - Off
  2. Verify the condition does not exist: Incorrect fluid level or condition
    • If a condition exists 

      Repair or replace as necessary

    • Go to next step: If no condition exists 
  3. Refer to Circuit / System Testing.
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