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Home >> Buick >> 2021 >> Envision Preferred, AWD >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Seat Belts >> Diagnostic Information and Procedures >> DTC B1AD2 >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify the appropriate scan tool Passenger Seat Belt Status parameter changes between Fastened and Unfastened when the seat belt is buckled and unbuckled.
    • If the parameter does not change 

      Refer to Circuit/System Testing

    • Go to next step: If the parameter changes 
  3. All OK.
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