Normal Operation

The occupant classification sensor (OCS) is used to classify the front passenger seat occupant in the event of a deployable impact. See PASSENGER AIR BAG DEACTIVATION (PAD) SWITCH , The OCS module monitors the pressure sensor and circuity for faults. If the OCS module detects a fault with the sensor or circuitry, it will store diagnostic trouble code (DTC) B2290 in memory and send a message to the restraints control module (RCM) which illuminates the air bag indicator.

The OCS system components (seat cushion foam pad, bladder with pressure sensor and electronic control unit) are calibrated to each other and are serviced as an assembly. The OCS system components are not to be installed separately. If a new OCS system, OCS system component or seat cushion foam pad are needed, a new OCS system service kit (seat wiring harness, seat cushion frame, seat cushion foam pad, bladder with pressure sensor and electronic control unit) must be installed as an assembly.