Normal Operation

WARNING: This page is about a different car, the 2010 Mercury Milan, 2010 Lincoln MKZ, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

The Occupant Classification System Module (OCSM) monitors each Occupant Classification Sensor (OCS) weight sensor bolt and circuitry for faults. If the OCSM detects an upward force (obstruction) on the passenger seat for 60 seconds, it will store DTC B00A0:97 in memory and send a message to the Restraints Control Module (RCM).

The RCM will store DTC B00A0:09 in memory and send a message to the Instrument Cluster (IC) module to illuminate the air bag warning indicator.

DTC B00A0:97 (Occupant Classification System: Component or System Operation Obstructed or Blocked) - If the OCSM detects a negative force on one or more OCS weight sensor bolt(s), it will set this DTC.
This pinpoint test is intended to diagnose the following:
Foreign object placed under or contacting the passenger seat