Disassembly and Assembly
FRONT SEAT CUSHIONFront Seat Cushion (Part 1):
Front Seat Cushion (Part 2):
Disassembly
WARNING:
- Always wear safety glasses when repairing an air bag supplemental restraint system (SRS) vehicle and when handling an air bag module. This will reduce the risk of injury in the event of an accidental deployment.
- Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury.
- The safety belt pretensioner is a pyrotechnic device. Always wear safety glasses when repairing an air bag equipped vehicle and when handling a safety belt buckle pretensioner or safety belt retractor pretensioner. Never probe a pretensioner electrical connector. Doing so could result in pretensioner or air bag deployment and could result in personal injury.
- To reduce the risk of personal injury, do not use any memory saver devices.
CAUTION: It is necessary to rezero the OCS system when a front passenger seat cushion is disassembled, a new trim cover 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.
NOTE:
- Occupant classification sensor (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 electronic control unit) must be installed as an assembly.
- To identify between a production OCS system and a service OCS system (OCS service kit) inspect the electronic control unit (ECU) electrical connector. A production OCS system allows the disconnect of the ECU electrical connector. A service OCS system (OCS service kit) has the ECU electrical connector glued to the ECU, it cannot and should not be disconnected or altered.
- If a seat equipped with a supplemental restraint system (SRS) component is being serviced, the SRS must be depowered.
- The air bag warning lamp illuminates when the RCM fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault.
- The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
- Repair is made by installing a new part only. If the new part does not correct the condition, install the original part and carry out the diagnostic procedure again.
- When installing a new occupant classification sensor (OCS) service kit, refer to the occupant classification sensor procedure in Air Bag Systems.
All seats
1. Remove the affected seat and depower the SRS.
Passenger seat only
2. For disassembly and assembly of the passenger seat cushion, refer to the occupant classification sensor (OCS) procedure in Air Bag Systems.
Driver seat only
3. Remove the seat backrest.
4. Remove the seat track.
5. Detach the trim cover J-clips from the seat cushion frame and remove the wiring harness, if equipped.
6. Remove the seat cushion frame from the trim cover and foam pad.
7. Partially invert the trim cover and remove the 2 rows of hog rings.
8. Remove the center row of hog rings.
9. Remove the trim cover from the cushion foam pad.
Assembly
Passenger seat only
1. For disassembly and assembly of the passenger seat cushion, refer to the occupant classification sensor (OCS) procedure in Air Bag systems.
Driver seat only
2. Position the cushion trim cover to the foam pad and install the center row of hog rings.
3. Continue positioning the cushion trim cover to the foam pad and install the remaining 2 rows of hog rings.
4. Install the cushion frame to the foam pad and trim cover.
5. Install the wiring harness, if equipped, and fasten the trim cover J-clips to the cushion frame.
6. Install the seat track.
7. Install the seat backrest.
All seats
8. Install the affected seat and repower the SRS.