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Test U: DTC B229B - Occupant Classification System Obstruction

PINPOINT TEST U: DTC B229B - OCCUPANT CLASSIFICATION SYSTEM OBSTRUCTION

Normal Operation
The occupant classification sensor (OCS) system is used to classify the front passenger seat occupant in the event of a deployable impact.

The occupant classification system module (OCSM) monitors the 4 OCS weight sensors bolts and circuity for faults. If the OCSM detects an obstruction, an upward force on the passenger seat for 60 seconds, it will store DTC B229B in memory and send a message to the restraints control module (RCM). The RCM will store DTC B2290 in memory and send a message to the instrument cluster (IC) module to illuminate the air bag warning indicator.

- DTC B229B Occupant Classification System Obstruction - If the OCSM detects a negative force on one or more OCS weight sensor bolt(s) (weight sensors), it will set this DTC.

This pinpoint test is intended to diagnose the following:
- Foreign object placed under or contacting the passenger seat


U1-U2:






U3-U5: