FixVault
Home › Ford › 2009 › Fusion S, Standard › Repair and Diagnosis › External Pages › Different car › Section 1012 (Supplemental Inflatable Restraint System) › Removal And Installation › Occupant Classification Sensor › Removal

Occupant Classification Sensor: Removal

WARNING: This page is about a different car, the 2008 Mercury Milan, 2008 Lincoln MKZ, and 2008 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: The occupant classification sensor (OCS) rails have a built-in strain gauge which may operate incorrectly if an OCS rail is dropped by itself, dropped after it is installed to the front passenger seat or dropped after it is installed to a front passenger seat track assembly. Use care when handling an OCS rail before or after it is installed to the front passenger seat or seat track assembly. Failure to follow these instructions may result in incorrect operation of the OCS system and increases the risk of serious personal injury or death in a crash.
WARNING: Do not disassemble the occupant classification sensor (OCS) rail or tighten or loosen any of the nuts and bolts installed to the OCS rail body. Only the 8 bolts that attach the 2 OCS rails to the seat track may be removed and installed. Failure to follow these instructions may result in incorrect operation of the OCS system and increase the risk of serious personal injury or death in a crash.
WARNING: To prevent foreign material and contaminants from entering the occupant classification sensor (OCS) rail, make sure the OCS rail shield is present, is not damaged and is correctly installed to the OCS rail. Failure to follow these instructions may result in incorrect operation of the OCS system and increases the risk of serious personal injury or death in a crash.
WARNING: Use care when handling the front passenger seat and track assembly. Dropping the assembly, placing excessive weight on or sitting on a front passenger seat that is not secured in the vehicle may result in damaged seat components. Failure to follow these instructions may result in incorrect operation of the occupant classification sensor (OCS) system and increases the risk of serious personal injury or death in a crash.
NOTE: The air bag warning indicator illuminates when the restraints control module (RCM) fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault.
NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
NOTE: Repair is made by installing a new part only. If the new part does not correct the condition, install the original part and perform the diagnostic procedure again.

All occupant classification sensor (OCS) system rails 

  1. Remove the passenger seat. For additional information, refer to SEATING article.

    2. Outboard OCS system rail 

  2. If equipped, remove the manual lumbar control knob.
  3. If equipped, remove the spring clip and the manual recliner handle.
  4. Detach and position aside the cushion side shield.
    • Pull the side shield away from the seat cushion at the front edge and release the forward and side retainers.
    • Pull the side shield rearward to release the rear retainer and detach the cushion side shield.

    5. Seat receiving a new OCS system rail 

  5. Remove the bolt and the forward seat riser from the affected side occupant classification sensor (OCS) system rail.
  6. Remove the 2 bolts and the rearward seat riser from the affected side OCS system rail.

    7. All OCS system rails 

    CAUTION: Push only on the tip of the occupant classification sensor (OCS) system electrical connector release tab to release the electrical connector. Do not insert the tool too deep into the OCS system electrical connector or damage to the electrical connector may occur.
    NOTE: Note the position and the routing of the OCS system rail electrical wiring and connector for installation.
  7. On the affected side, using a suitable tool, release the tab and disconnect the OCS system rail electrical connector.
    8. Fig 1: Disconnecting OCS Rail Electrical Connector
    GF0028609Courtesy of FORD MOTOR CO.
  8. If equipped, disconnect the power seat track motor electrical connector.
  9. Move the seat to the forward most position.
    • If equipped with a power seat track, apply power and ground to the pins shown.
    10. Fig 2: Locating Power Seat Track Motor Electrical Connector Pins
    GF0026706Courtesy of FORD MOTOR CO.
  10. Remove the 2 rear bolts from the affected OCS system rail.
  11. Move the seat to the rearward most position.
    • If equipped with a power seat track, apply power and ground to the pins shown.
    12. Fig 3: Locating Power Seat Track Motor Electrical Connector Pins
    GF0026706Courtesy of FORD MOTOR CO.
    NOTE: Note what position the locator pin on the OCS system rail goes through the OCS system rail shield and into the rear mounting point of the seat track for installation.
  12. Remove the 2 front bolts and the affected OCS system rail and shield.
    • Release the OCS system rail shield rear tab from the OCS system rail.
About FixVault