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Home >> Cadillac >> 2017 >> XT5 Base >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission Range Select System >> Diagnostic Information and Procedures >> DTC B2A00: Door Open Switch Signal/Door Ajar Switch Signal/Driver Door Open Switch Circuit Not Plausible >> Circuit/System Verification

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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