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Home >> Buick >> 2017 >> LaCrosse Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission Range Select Lever >> Diagnostic Information and Procedures >> DTC B2A00: Door Open Switch >> Circuit/System Verification
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Circuit/System Verification

  1. Ignition ON.
  2. Verify the scan tool Body Control Module Driver Door Ajar Switch parameter changes between Inactive and Active when opening and closing the driver door.
    • If the parameter changes 
  3. Verify the scan tool Keyless Entry Control Module Driver Door Ajar Switch parameter changes between Inactive and Active when opening and closing the driver door.
    • If the parameter does not change 

      Refer to Circuit/System Testing

    • If the parameter changes 
  4. All OK.
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