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Occupant Classification Module: Installation

WARNING: To avoid personal injury or death on vehicles equipped with the Occupant Classification System (OCS), only the Occupant Classification Module (OCM) and the seat cushion trim may be serviced separately. All other components of the passenger front seat cushion must be serviced only as a complete factory-calibrated, assembled and tamper-evident service replacement package.

Once any of the original factory-installed components except the OCM have been replaced with the service replacement package components, the OCM can only be serviced by replacing the entire passenger side front seat cushion unit with another complete service replacement package. (Refer to BODY/SEATS/SEAT CUSHION - FRONT - REMOVAL) .

WARNING: Never replace both the Occupant Restraint Controller (ORC) and the Occupant Classification Module (OCM) at the same time. If both require replacement, replace one, then perform the Airbag System test (Refer to ELECTRICAL/RESTRAINTS - DIAGNOSIS AND TESTING - AIRBAG SYSTEM)  before replacing the other. Both the ORC and the OCM store Occupant Classification System (OCS) calibration data, which they transfer to one another when one of them is replaced. If both are replaced at the same time, an irreversible fault will be set in both modules and the OCS may malfunction may result in personal injury or death.
  1. Carefully position the Occupant Classification Module (OCM) to the OCM bracket. See Figure. When the OCM is correctly positioned, the connector on the module will be pointed to right side of the vehicle.
  2. Install the two screws to the OCM. Torque the screws to 2 N.m (20 in. lbs.).
  3. Connect the seat wire harness connector for the OCM. Be certain that the latches on the connector are each fully engaged.
  4. Install the lock pin into the connector lock tower on the OCM.
    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 test procedure, the Occupant Classification System Verification Test must be done using a scan tool and the BODY DIAGNOSTIC PROCEDURES article.
  5. Verify vehicle and system operation.
  6. Close hood.
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