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Occupant Classification Sensor - Service Kit: Removal

WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: Install a new occupant classification sensor (OCS) system service kit as a complete assembly. Never install only part of the kit components. Failure to follow this instruction may result in incorrect operation of the OCS system and increases the risk of serious personal injury or death in a crash.
NOTE: It is necessary to carry out the Occupant Classification Sensor (OCS) system reset when a front passenger seat backrest is separated from the seat cushion, the seat cushion is disassembled, a new trim cover is installed or an OCS service kit is installed. A scan tool is used to trigger the active command to carry out rezeroing of the OCS system. Failure to follow these instructions may result in incorrect operation of the OCS system and may cause system failure.
NOTE: The heated seat element on the front passenger seat cushion is not serviceable separately. If a new heated seat element is needed on the front passenger seat cushion, a new Occupant Classification Sensor (OCS) service kit equipped with a heated seat element must be installed.
NOTE: OCS system components (seat cushion foam pad, bladder with pressure sensor and electronic control unit) are calibrated to each other and are serviced as an assembly. The OCS system components are not to be installed separately. If a new OCS system, OCS system component or seat cushion foam pad are needed, a new OCS system service kit (seat cushion foam pad, bladder with pressure sensor and Occupant Classification System Module (OCSM)) must be installed as an assembly.
NOTE: To identify between a production OCS system and a service OCS system service kit, inspect the OCSM electrical connector.  A production OCS system allows the disconnect of the OCSM electrical connector. A service OCS system (OCS service kit) has the OCSM electrical connector glued to the OCSM. It cannot and should not be disconnected or altered.
NOTE: The seat wiring harness will be reused. The OCS service kit connector connects to the seat wiring harness OCSM connector. The pressure sensor seat wiring harness connector will be left unplugged and secured by a tie strap.
NOTE: The air bag warning indicator illuminates when the correct Restraints Control Module (RCM) fuse is removed and the ignition is ON.
NOTE: The Supplemental Restraint System (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.
  1. Depower the SRS. For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering .
  2. Remove the passenger seat. For additional information, refer to SEATING article.
    3. NOTE: The seat wiring harness will be reused.
  3. Disconnect the electrical connector(s) and wiring clips in the following sequence.
    1. Disconnect the seat wire harness OCS electrical connector from the service part OCS electrical connector.
    2. Release the 2 wiring clips on the wiring harness from the seat cushion pan.
    3. If equipped with heated seats, disconnect the heated seat module electrical connector, release the wiring clip on the wiring harness from the seat cushion pan, and disconnect the 2 seat cushion element electrical connectors.
  4. Remove the 4 seat cushion bolts retaining the seat cushion to the seat track.
    5. NOTE: While positioning the seat cushion pan and Occupant Classification Sensor (OCS) assembly, be careful not to damage any of the components. Failure to follow these instructions may result in incorrect operation of the OCS system and may cause system failure.
  5. Remove the seat cushion and pan assembly.
    • To aid in removal, recline the seat.
    6. NOTE: Use care when separating the seat upholstery from the hook-and-loop strip, or the hook-and-loop strip can be torn from the seat cushion foam pad.
  6. Detach the seat cushion trim cover J-clips from the seat cushion pan and remove the seat cushion trim cover.
    7. Fig 1: Seat Cushion Trim Cover J-Clips
    GF0024004Courtesy of FORD MOTOR CO.
  7. Bend the retaining tab away from the pressure sensor, then slide the pressure sensor off the bracket.
    8. Fig 2: Pressure Sensor Retaining Tab
    GF0024005Courtesy of FORD MOTOR CO.
    NOTE: Care must be taken to prevent damage to the seat cushion pan when removing the rivets. Failure to follow these instructions may result in component damage and/or system failure.
  8. Remove the 2 rivets and detach the OCSM from the seat cushion pan.
  9. Remove the OCS.
    • Pull all the OCS components (hose, pressure sensor, wire harness, OCSM and connectors) through the seat cushion pan opening.
    10. Fig 3: OCS Components
    GF0024011Courtesy of FORD MOTOR CO.
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