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Repair procedures: Installation

NOTE: The ODS (Occupant Detection System) utilizes a robust weight measuring technology. If any of the following conditions occur, the WCS will reset and an accuracy check should be performed:
  • The occupant classification ECU or any of the sensors is replaced.
  • The vehicle is brought to the repair shop due to an accident or a crash, even though the severity seems to be minor.
  • The telltale lamp is not illuminated when the passenger seat is not occupied.
  • The telltale lamp delays turning off for more than 10 seconds when an adult passenger sits in the seat.
  • The passenger seat is removed from the vehicle and reassembled.
  • Any accessories (side table, seatback table and seat cover, etc) are replaced or installed.
  1. Install the ODS in the front passenger seat assembly.

    (Refer to OCCUPANT CLASSIFICATION SENSOR (OCS) )

  2. Install the front passenger seat assembly. (Refer to FRONT SEAT )
  3. Reconnect the battery negative cable.
  4. After installing ODS, perform the WCS reset and accuracy check with the scantool.
    NOTE: Check that seat is not occupied and empty before performing the operation. Make sure that the back pocket is empty.
    In order to perform the accuracy check, the command zero operation should be finished normally. Make sure the procedure is finished normally.
    1. Adjust the seat position according to the following table:
      SEAT POSITION ADJUSTMENT CHART

      Item Remark
      Seat track position Rearmost position
      Seat recliner angle Normal (upright)
      Head rest position Lowest position
      Lifter position Lowest position

      Make sure seat belt not to be buckled, and the belt tension be normal.

    2. Connect the scantool connector to the data link connector located under the crash pad.
    3. Turn the ignition switch on and power on the scantool.
    4. Perform the WCS reset by using the scantool.

      [System selection screen] 

      Vehicle Selection_Airbag_Weight Classification System_WCS RESET_ENTER 

      (then, Completed is displayed)

    5. Perform the accuracy check by using the scantool.

      [System selection screen] 

      Vehicle Selection_Airbag_Weight Classification System_WCS RESET_ESC 

    6. Confirm the measured weight is within the standard value. And then press "ESC".

      specification:  -2.0kg ~ 2.0kg (-4.4lb ~ 4.4lb)

    7. Place a 37kg (81.57lb) weight on the passenger front seat.
    8. Confirm that the result of accuracy check is within the standard value.

      specification:  31kg ~ 43kg (68.34lb ~ 94.79lb)

      NOTE:
      • When performing the accuracy check, use a solid metal weight and place it in the center of the seat. If a weight made from liquid is used, or if the weight slides, the check result may not be accurate, and may result in an unwanted fail
      • When the measured weight deviates from the standard value, check again that all the fastening bolts are properly tightened, and make sure there is no interference. During the tightening, be careful not to deform the seat rail or seat structure. If the accuracy check is still not within the standard value, replace the seat leg assembly.
      • When the WCS reset operation not finished normally, replace the seat leg assembly.
  5. After installing the ODS, confirm proper system operation:
    1. Turn the ignition switch ON, the SRS indicator should be turned on for about six seconds and then go off.
    2. Telltale lamp will turn on for 4 seconds and be turned off for 3 seconds. After the 7 seconds, it shall remain off if the ODS does not require suppression and the passenger airbag is enabled.
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