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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 330 (Antilock Brake System) >> Diagnostic Information and Procedures >> DTC P15FD >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition - On / Vehicle - In Service Mode
  2. Test drive the vehicle.
  3. All sensors must show the same speed when driving in a straight line at a speed greater than 40 km/h (25 MPH).
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