Occupant Classification Sensor: Removal

WARNING: This page is about a different car, the 2009 Ford Mustang. 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: To prevent system failure, it is necessary to carry out the Occupant Classification Sensor (OCS) system reset 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 heater mat on the front passenger seat cushion is not serviceable separately. If a new heater mat is needed on the front passenger seat cushion, a new Occupant Classification Sensor (OCS) system service kit equipped with a heater mat 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, OCSM 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 module. It cannot and should not be disconnected or altered.

NOTE: The air bag warning indicator illuminates when the correct 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.

All seats

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 all the seat cushion trim cover J-clips and the pin-type retainer from the seat cushion frame assembly.

NOTE: Use care when separating the seat cushion trim cover from the hook-and-loop strip, or the hook-and-loop strip can be torn from the seat cushion foam pad.

Remove the hog rings and cushion trim cover from the foam pad.

Fig 1: Locating Hog Rings And Hook And Loop Fasteners

Courtesy of FORD MOTOR CO.

NOTE: OEM OCS pressure sensor shown, OCS system 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 cushion side shield.

All seats

NOTE: Note position of wire harness routing for installation.

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

Seats with an OEM Occupant Classification Sensor (OCS)

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

All seats

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

Fig 3: Locating Rivets Of ECU

Courtesy of FORD MOTOR CO.

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.

Fig 4: Locating Pressure Sensor, Wire Harness, Electrical Connectors And ECU

Courtesy of FORD MOTOR CO.