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Passenger Presence System Re-zeroing Procedure

NOTE:
  • Before the passenger presence system can be re-zeroed the front passenger seat must be completely empty of all items. The presence of any liquid or items on the front passenger seat will affect the calibration and operation of the passenger presence system.
  • DTC B0081 will set if the re-zero system test is performed with:
    • An aftermarket seat heater located too close to the sensor mat
    • A scan tool, laptop or other electronic device is in the seat
    • The seat is damp or wet
    • An object or person is in the seat
  1. Empty the front outboard passenger seat.
  2. Start the vehicle.
  3. Set the Heating, Ventilation and Air Conditioning (HVAC) system to the coldest Air Conditioning setting, recirculation setting ON and the blower fan on HIGH.
  4. Turn on the passenger heated seat (if equipped).
  5. Close all of the windows and doors.
  6. After 5 minutes, turn the ignition OFF and keep windows and doors closed for 30 seconds.
  7. Verify the passenger seat is completely dry and is free of an object, person, scan tool, laptop, cell phone or other electronic device.
  8. Turn ON the ignition, with the engine OFF.
  9. Verify the passenger heated seat is off (if equipped).
  10. Install a scan tool.
  11. Verify that the temperature inside the passenger compartment is between 0 to 38°C (32 to 100°F) before running a re-zero procedure.
  12. With a scan tool, perform the Passenger Presence Sensor Learn procedure.
    NOTE: The presence of current DTCs, except DTC B0081 11 or B0081 4B, will prevent the passenger presence system from re-zeroing and may set additional DTCs.
  13. If the vehicle fails the test, confirm that the seat is empty and completely dry. Perform the Passenger Presence Sensor Learn test again. If the test fails again, verify DTC B0081 is not set as current. If the DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
  14. If the vehicle passes the test, cycle the ignition OFF.
  15. After the passenger presence system has been successfully re-zeroed, perform the Diagnostic Repair Verification .
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