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Occupant Classification Module: Installation

WARNING: A non-calibrated Occupant Classification Module (OCM) is available for separate service replacement. The OCM and all of the other components of the Occupant Classification System (OCS) including the passenger side front seat, the seat weight sensors, the passenger or driver seat track position sensor and the seat adjusters, cushion, back, frame, foam, springs, and wiring harness are a factory-calibrated and assembled unit. Any time any one of these components is removed or replaced for any reason, the OCM must be re-calibrated using a diagnostic scan tool, the Occupant Classification Seat Weight special tool 9077, and the Occupant Classification System Verification Test. Refer to the appropriate diagnostic procedures.
Fig 1: Removing/Installing Occupant Classification Module (OCM)
GC0043800Courtesy of DAIMLERCHRYSLER CORP.
  1. Position the Occupant Classification Module (OCM) (2) under the passenger front seat cushion.
  2. Connect the two electrical connectors (3) to the OCM (2).
  3. Carefully position the OCM to the OCM bracket (1). When the OCM is correctly positioned, the connector on the module will be pointed rearward in the vehicle and the locating pins on the module will be engaged in the bracket.
  4. Install the two screws (4) that secure the OCM to the bracket.
WARNING: Do not connect the battery negative cable (Refer to ELECTRICAL/RESTRAINTS - DIAGNOSIS AND TESTING - AIRBAG SYSTEM)  . Personal injury or death may result if the system test is not performed first.
WARNING: Following successful completion of the Airbag System verification test procedure, perform the Occupant Classification System Verification Test using a diagnostic scan tool and the Occupant Classification Seat Weight special tool 9077. Refer to the appropriate diagnostic information.