Occupant Classification System (OCS) Sensor: Removal

WARNING: This page is about a different car, the 2022 Ford Bronco Sport. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: The following procedure prescribes critical repair steps required for correct restraint system operation during a crash. Follow all notes and steps carefully. Failure to follow step instructions may result in incorrect operation of the restraint system and increases the risk of serious personal injury or death in a crash.

NOTE: To prevent system failure, carry out the OCS (occupant classification system) reset when a front passenger seat cushion is disassembled, a new trim cover or heater mat is installed or an OCS (occupant classification system) service kit is installed. Use a diagnostic scan tool to carry out the OCS (occupant classification system) reset command.

NOTE: OCS (occupant classification system) components (seat cushion foam, bladder with OCSM (occupant classification system module)) are calibrated to each other and are serviced as an assembly with an OCS (occupant classification system) service kit. If a new OCS (occupant classification system) or seat cushion foam are needed, a new OCS (occupant classification system) service kit must be installed. The heater mat can be serviced separately.

NOTE: Removal steps in this procedure may contain installation details.

WARNING: Before beginning any service procedure, refer to health and safety warnings. Failure to follow this instruction may result in serious personal injury.

Refer to: Pyrotechnic Device Health and Safety Precautions
Remove the front passenger seat. Refer to: Front Seat
If equipped with manual recline.
1. Lift the recline handle.
2. Remove the screw.
3. Remove the recline handle cover.
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If equipped with manual height adjust. Remove the retaining clip and the height adjust handle.

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Remove the front seat side shield front and rear screws.

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If equipped with a 2-way manual seat track. Remove the front side shield.
1. Lift up and out, separating the front seat side shield from the recliner bracket and inner shield.
2. Squeeze together, pull out and release the front seat side shield retainers.
3. Slide forward and remove the front seat side shield.
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If equipped with a 4-way manual seat track. Remove the front side shield.
1. Lift up and out, separating the front seat side shield from the recliner bracket and inner shield.
2. Slide forward and remove the front seat side shield.
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If equipped with a power seat track.
1. Firmly grasp the front seat side shield, lift up and out, separating the side shield from the recliner bracket.
2. Slide the front seat side shield forward and separate the side shield from the seat.
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If equipped with a power seat track. Disconnect the front seat control switch electrical connector and remove the front seat side shield.

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1. If equipped with heated seat. Detach and disconnect the front seat cushion heater mat electrical connector.
2. Detach the front seat backrest heater mat electrical connector.
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Detach the front seat backrest cover straps and position the backrest cover aside.

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- If equipped with heated seat. Detach the front seat cushion heater mat wiring harness retainer and position aside.
- Detach the front seat cushion cover rear J-clips.
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Disconnect the OCSM and position the wiring harness aside.

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NOTE: Using excessive force when bending the bracket tab can damage the OCSM (occupant classification system module) housing.

NOTE: Follow the unique instructions or graphic for this step in the installation.

Bend the bracket tab and remove the OCSM from the bracket. Use the General Equipment: Flat Headed Screw Driver

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1. Detach the front seat cushion cover J-clip.
2. On both sides. Detach the front seat cushion cover J-clips.
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Lift the front seat cushion foam. If the front seat cushion foam, and the OCS are adhered together, then the OCS is a service kit. If nothing is adhered together, then the OCS is OE (original equipment).

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NOTE: For correct installation, note the location of the cushion heater mat wiring harness pigtail as it passes through the seat.

If equipped with OE (original equipment) OCS, route out the front seat cushion heater mat wiring harness pigtail (if equipped) and remove the front seat cushion cover with foam as an assembly.

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NOTE: Typical OE (original equipment) OCS (occupant classification system) shown, service kit similar.
1. Detach the OCS pin-type retainers..
2. Lift the OCS off the front seat track.
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NOTE: Note the location of the OCS (occupant classification system) hose as it passes through the seat springs for proper installation.

Route out the OCS hose and module from between the front seat cushion support wires and remove the OCS.

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NOTE: This step is only necessary when installing a new OCS (occupant classification system).
1. If equipped with heated seat. Route the front seat cushion heater mat wiring harness through the cushion cover.
2. Position the rear portion of the front seat cushion cover from the foam.
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NOTE: This step is only necessary when installing a new OCS (occupant classification system).

Remove the front seat cushion cover.
1. Invert the cushion cover.
2. Remove and discard the hog rings.

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