Occupant Classification Sensor (OCS) System

The Occupant Classification Sensor (OCS) system is found only on the front passenger seat. The front passenger OCS  system is comprised of the following: 4 OCS  weight sensor bolts that are mounted to each corner of the seat track and an OCSM  which is mounted to the electrical bracket underneath the seat cushion pan. The OCS  weight sensor bolts are only serviced with a seat track, the OCSM  is serviced separately. The weight of any occupant or object on the front passenger seat is electronically communicated to the OCSM  .

The OCS  system is also used for operation of the passenger Belt-Minder®. For information on the passenger Belt-Minder® feature, refer to SAFETY BELT SYSTEMbb . To deactivate or reactivate the passenger Belt-Minder® feature, refer to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES -- FLEX or the Owner's Literature.

When the front passenger seat is removed for service, the OCS  System Reset must be carried out after the installation of the front passenger seat. When an OCS  system component is installed new, the System Reset must be carried out after the installation of the front passenger seat. The Zero Seat Weight Test and/or System Reset must be carried out only as instructed to do so in the Workshop Manual. For information on the Zero Seat Weight Test and/or System Reset, refer to OCCUPANT CLASSIFICATION SENSOR (OCS) SYSTEM ZERO SEAT WEIGHT TEST  or OCCUPANT CLASSIFICATION SENSOR (OCS) SYSTEM RESET .

In the event of a crash that requires deployment, a new passenger seat track with OCS  weight sensor bolts must be installed. Before carrying out the OCS  System Reset, on-demand DTC B1231 must be cleared from the OCSM  . Refer to OCCUPANT CLASSIFICATION SENSOR - MANUAL SEAT TRACK  or OCCUPANT CLASSIFICATION SENSOR - POWER SEAT TRACK .