Module, Occupant Classification: Installation: Installation

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.

Fig 1: Seat Cushion Foam, Seat Weight Sensor Pad & Seat Frame

Courtesy of CHRYSLER GROUP, LLC

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 jute-like SWS pad, 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, discard all of the removed OCS components including the OCM with integral and internal electronic pressure sensor, the pressure hose, the SWS, the jute-like SWS pad and the seat cushion foam and replace them with the entire contents of the factory-calibrated OCS service replacement package.

Position the Seat Weight Sensor (SWS) (also known as the seat weight bladder), the jute-like SWS pad (2), the Occupant Classification System (OCS) pressure hose and the Occupant Classification Module (OCM) with integral electronic pressure sensor to the top of the front seat cushion as a unit. Lift the back of the SWS 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 SWS and jute-like pad to the seat cushion pan (3).
Position the foam (1) onto the seat cushion.
Reinstall the trim cover onto the passenger front seat cushion. Refer to COVER, SEAT CUSHION, INSTALLATION and COVER, SEAT CUSHION, INSTALLATION .

Fig 2: Harness Connector, Blade, Stanchion & Occupant Classification Module
Courtesy of CHRYSLER GROUP, LLC
From the underside of the seat cushion, snap the OCM (4) onto the blade (2) of the mounting bracket (base seat) or stanchion (3) (storage seat) beneath the inboard front corner of the seat cushion. Route the pressure hose away from sharp or moving objects and be certain the hose is not kinked.
Reconnect the seat wire harness connector (1) to the OCM beneath the inboard front corner of the seat cushion.
Reinstall the passenger front seat into the vehicle. Refer to SEAT, INSTALLATION .
If this Electronic Control Unit (ECU) is being replaced with a new unit, a diagnostic scan tool MUST be used to align the PROXI configuration data into the new ECU. Follow the routine outlined in the diagnostic scan tool for PROXI Configuration Alignment under Body Control Module (BCM) Miscellaneous Functions menu.
Do not reconnect the negative cable to the battery 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.