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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 103 (Antilock Brake System) >> Diagnostic Information and Procedures >> DTC C0555-C0558 >> 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 no other DTCs are set.
    • Go to next step: If no other DTCs are set 
  3. Inspect the following components:
    • B5 Wheel Speed Sensor Correct part
    • B5 Wheel Speed Sensor = Visible Damage
    • If a condition exists 

      Replace the component: B5 Wheel Speed Sensor

    • Go to next step: If no conditions exist 
  4. Replace the component: K160 Brake System Control Module