Removal And Installation: Installation
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.
The OCS is used only in the passenger side front seat of vehicles manufactured for domestic markets. Vehicles manufactured for export markets use the ODS instead of the OCS on the passenger side front seat.
All of the components of the OCS including the OCM, the seat weight sensor, the plastic insulator seat weight sensor pad, the passenger seat cushion foam, the electronic pressure sensor, the OCS pressure hose, and the heat mat and vent bag (if equipped), are serviced only as a factory-calibrated and assembled unit. Any time any one of these components requires replacement for any reason, discard all of the removed OCS components including the OCM with integral and internal electronic pressure sensor, the pressure hose, the seat weight sensor, the plastic insulator seat weight sensor pad, the heat mat and vent bag (if equipped), and the seat cushion foam and replace them with the entire contents of the proper factory-calibrated OCS service replacement package, then re-zero the OCS. Refer to the appropriate diagnostic information.
If ONLY the seat trim requires replacing and no other components are compromised. Replace the trim and follow the OCS re-zeroing process. Refer to the appropriate diagnostic information.
- Position the seat weight sensor, the plastic insulator seat weight sensor pad (1), the OCS pressure hose and the OCM with integral electronic pressure sensor to the top of the front seat cushion pan as a unit. Lift the back of the seat weight sensor and pad far enough to access and insert the OCM and pressure hose between the seat cushion springs to the underside of the seat cushion. Be certain the pressure hose is not pinched or kinked.
- Install the two push-in plastic fasteners that secure the seat weight sensor and plastic insulator pad (1) to the seat cushion pan (2).
- Install the foam cushion with heat mat and vent bag, if equipped, and seat cover to the seat. Refer to COVER, SEAT CUSHION, FRONT, REMOVAL AND INSTALLATION
.NOTE:
If the vehicle is equipped with heated seats, vented seats or both, the proper OCM kit will come with these components attached to the new seat cushion foam.
- Collect ALL
of the OCS components, including the seat cushion foam assembly replaced during this repair procedure. Insure ALL
parts are the original equipment parts. Return ALL
removed parts to the Mopar Quality Center / QEC for root cause evaluation. If the original equipment removed parts have not ALL been replaced, return to Step 1 and complete all steps of the repair process.
- From the underside of the seat, snap the OCM (1) to the blade of the mounting bracket (2) beneath the outboard front corner of the seat. Be certain the OCM has not been rotated in a fashion that puts torsion on the hose, this will cause the hose to kink.
- Connect the seat wire harness connector (3) to the OCM (1).
- Install the passenger front seat into the vehicle. Refer to SEAT, FRONT, REMOVAL AND INSTALLATION .
- Do not connect the negative battery cable at this time. The Supplemental Restraint System (SRS) Verification Test procedure should be performed following service of any SRS component. Refer to SUPPLEMENTAL RESTRAINT SYSTEM VERIFICATION TEST .
- Following successful completion of the SRS Verification Test procedure, perform the OCM System Verification Test procedure found in the diagnostic scan tool under Miscellaneous Functions. Refer to the appropriate diagnostic procedures.
If this Electronic Control Unit (ECU) is being replaced with a new unit, a diagnostic scan tool MUST be used to determine if alignment of the PROXI configuration data into the new ECU is needed. If PROXI alignment is needed, follow the routine outlined in the diagnostic scan tool for PROXI Configuration Alignment under the Body Control Module (BCM) Miscellaneous Functions menu.