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Home >> Buick >> 2021 >> Envision Preferred, AWD >> Repair and Diagnosis >> Brakes >> Traction Control >> Antilock Brake System >> Diagnostic Information and Procedures >> DTC P215A >> Circuit/System Verification

Circuit/System Verification

  1. Test drive the vehicle in a straight line at a speed greater than 20 km/h (13 MPH).
  2. Verify all scan tool Wheel Speed Sensor parameters are within 1.6 km/h (1 MPH) of each other.
    • If any parameter is not within 1.6 km/h (1 MPH) of each other 

      Refer to Circuit/System Testing.

    • Go to next step: If each parameter is within 1.6 km/h (1 MPH) of each other 
  3. All OK.
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