Occupant Classification Sensor: Removal

WARNING: To reduce the risk of accidental deployment, do not use any memory saver devices. Failure to follow this instruction may result in serious personal injury or death.

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.

CAUTION: There are 3 occupant classification sensor (OCS) system service kits available for this vehicle (base seat, heated seat and power heated seat). Always make sure the correct OCS system service kit is installed.

CAUTION: To prevent system failure, it is necessary to carry out the occupant classification sensor (OCS) system reset of the OCS system when a front passenger seat cushion is disassembled, a new trim cover installed or an OCS system service kit is installed. A scan tool is used to carry out the OCS system reset command.

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) system service kit equipped with a heated seat element must be installed.

NOTE: OCS system components (seat cushion foam pad, bladder with pressure sensor and occupant classification system module [OCSM]) 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, electronic control unit and seat wiring harness) must be installed as an assembly.

NOTE: To identify between a production OCS system and a OCS system service kit inspect the OCSM electrical connector. A production OCS system allows the disconnect of the OCSM electrical connector. A OCS system service kit has the OCSM electrical connector glued to the OCSM. It cannot and should not be disconnected or altered.

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 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 seats

Position the seat to access all the seat track-to-floor pan bolts.
Depower the SRS. For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering .
Remove the passenger seat. For additional information, refer to SEATING .
Remove the seat backrest. For additional information, refer to SEATING .
Remove the seat track. For additional information, refer to SEATING .
Release the seat trim cover and foam pad.
- Release all the seat cushion trim cover J-clips and the pin-type retainer from the seat cushion frame assembly.

CAUTION: 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.

Separate the trim cover from the foam pad.
- Release the hook-and-loop fasteners and remove the hog rings.

Fig 1: Locating Hog Rings And Hook And Loop Fasteners

Courtesy of FORD MOTOR CO.

NOTE: Production pressure sensor shown, service kit pressure sensor similar.

Bend to release the retaining tab and remove the pressure sensor from the bracket.

Fig 2: Removing Pressure Sensor From Bracket

Courtesy of FORD MOTOR CO.

Seats with power

Disconnect the seat control switch electrical connector from the side trim cover.

All seats

NOTE: Note position of wire routing for installation.

Release all the seat wire harness routing clips and electrical connector retainers from the seat cushion frame assembly.

Seats with a production occupant classification sensor (OCS)

Release the 2 OCS system bladder pin-type retainers and separate it from the seat cushion frame assembly.

All seats

Remove the rivets and separate the OCSM from the seat cushion frame bracket.

NOTE: Note position of hose routing for installation.

Remove the OCS system from the seat cushion frame assembly.
- Feed the hose, pressure sensor, wire harness, electrical connector and OCSM through the opening in the seat cushion frame assembly.

Fig 3: Locating Pressure Sensor, Wire Harness, Electrical Connectors And ECU

Courtesy of FORD MOTOR CO.