Occupant Classification System (OCS) Sensor - Vehicles Without: Multi-Contour Seats: Removal

WARNING: This page is about a different car, the 2020 Ford F-150. 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 reset when a front passenger seat cushion is disassembled, a new trim cover is installed or an OCS service kit is installed. Use a scan tool to carry out the OCS reset command.

NOTE: The cushion heater mat on a front outboard passenger seat is not serviced separately. If a new cushion heater mat is needed on the front passenger seat, install an OCS service kit equipped with a heater mat. Failure to follow this instruction may result in incorrect operation of the OCS.

NOTE: OCS components (seat cushion foam pad, bladder with OCSM) are calibrated to each other and are serviced as an assembly. The OCS components are not to be installed separately. If a new OCS, OCS component or seat cushion foam pad are needed, a new OCS service kit (seat cushion foam pad, bladder with OCSM) must be installed as an assembly.

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 .
If equipped with a power seat. Raise the seat to its highest point of travel and remove the front passenger seat. Refer to: Front Seat .

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1. If equipped. Remove the clip and the recline handle.
2. If equipped. Remove the clip and the lumbar handle.
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Remove the cushion side shield screws.

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1. Pull the rear of the cushion side shield out.
2. Firmly grasp the cushion side shield, lift up and out, separating the cushion side shield from the recliner bracket.
3. If equipped. Release the retainers from underneath and pull out on the cushion side shield.
4. Slide the cushion side shield forward and for a manual seat track, remove the cushion side shield.
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If equipped. Disconnect the seat control switch electrical connector and remove the cushion side shield.

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Detach the electrical connector retainers and position the wire harnesses aside.

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Detach the backrest cover straps and position the backrest cover aside.

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Detach the cushion cover J-clips and position the cushion cover aside.

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1. Disconnect the OCS sensor.
2. If equipped. Disconnect the cushion heater mat electrical connector and wiring harness pin-type retainer.
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1. On both sides. Detach the cushion cover J-clips.
2. Detach the cushion cover J-clip.
3. Release the cushion cover strap from around the seatbelt buckle.
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If equipped. Detach the cushion heater mat J-clip.

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NOTE: When equipped with an OCS service kit, the OCS is adhered to the bottom of the front seat cushion foam. This requires the cushion cover, foam and OCS to be positioned aside as an assembly.

Lift the cushion foam. If the cushion foam and 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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If equipped with an OE OCS. Route the cushion heater mat wiring harness pigtail (if equipped) out from between the seat cushion and backrest and remove the cushion foam and cover as an assembly.

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NOTE: Typical OE OCS shown, service kit similar.
1. Remove the OCS sensor bracket screw.
  Torque: 44 lb.in (5 Nm)
2. Remove the OCS pin-type retainers.
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If equipped with an OCS service kit. Route the cushion heater mat wiring harness pigtail (if equipped) out from between the seat cushion and backrest and start OCS removal.

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NOTE: Note the location of the OCS hose and heater mat pigtail as it passes through the seat cushion support for proper installation.

If equipped with an OE or service kit OCS. Route out the OCS hose, sensor and sensor bracket from between the seat cushion support wires and remove the OCS.

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NOTE: This step is only necessary when installing a new OCS.

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

Bend the tab up and slide the OCS sensor off the bracket.

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NOTE: This step is only necessary when installing a new OCS.

Position the rear portion of the seat cushion cover from the foam.

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NOTE: Use care when separating the seat cushion from the hook-and-arrow or the hook may be torn from the seat cushion foam pad.

NOTE: This step is only necessary when installing a new OCS.

Remove the seat cushion cover.
1. Invert the seat cushion cover.
2. Release the hook-and-arrows.

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