Occupant Classification Module - Removal

REMOVAL

WARNING: To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbag, Occupant Classification System (OCS), seat belt tensioner, impact sensor or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to follow these instructions may result in accidental airbag deployment.







NOTE: All of the components of the Occupant Classification System (OCS) including the Occupant Classification Module (OCM), the Seat Weight Sensor (SWS) (also known as the seat weight bladder), the upper and lower protective plastic liners, the passenger seat cushion foam, the electronic pressure sensor and the OCS pressure hose are serviced only as a factory-calibrated and assembled unit. Any time any one of these components requires replacement for any reason, the entire calibrated OCS must be replaced and re-zeroed in the Occupant Restraint Controller (ORC) using a diagnostic scan tool. Refer to the appropriate diagnostic information.

1. Disconnect and isolate the negative cable from the battery. Wait two minutes for the system capacitor to discharge before further service.
2. Remove the passenger seat from the vehicle..
3. Disconnect the seat wire harness connector from the Occupant Classification Module (OCM) (4) beneath the inboard front corner of the seat cushion pan (6).
4. Using a small flat-bladed screwdriver or a small pick tool, carefully pry the latch tab integral to the OCM mount to release it from the blade of the stamped metal mounting bracket (5) beneath the inboard front corner of the seat cushion pan.
5. Remove the trim cover from the passenger seat cushion.
6. Remove the foam (1) from the seat cushion.
7. Remove the two push-in plastic fasteners (2) that secure the Seat Weight Sensor (SWS) (also known as the seat weight bladder) (3) the two protective plastic liners (8) and the retainer (7) to the seat cushion pan.
8. Remove the SWS, the liners, the retainer, the pressure hose and the OCM with integral electronic pressure sensor from above the seat cushion pan as a unit.
9. If any of the OCS components requires replacement, discard the entire OCS unit. Replace it with the entire contents of the factory-calibrated service replacement package, which includes an OCM with integral and internal electronic pressure sensor, a pressure hose, the SWS, the two protective plastic liners, the retainer and the seat cushion foam.