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Home › Buick › 2021 › Envision Preferred, AWD › Repair and Diagnosis › Brakes › Traction Control › Antilock Brake System › Diagnostic Information and Procedures › DTC C2A01-C2A04 › Circuit/System Testing

Circuit/System Testing

  1. 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 
  2. Under normal operating conditions: Verify the DTC does not set.
    • If the DTC sets 

      Replace the component: K160 Brake System Control Module

    • Go to next step: If the DTC does not set 
  3. All OK.
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