Test Q: DTC B229A - Occupant Classification System Contamination

PINPOINT TEST Q: DTC B229A - OCCUPANT CLASSIFICATION SYSTEM CONTAMINATION

Q1-Q4:

Q5-Q7:

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 OCS system monitors the 2 OCS rails (weight sensors) and circuity for faults. If the OCS module detects an object within the OCS rails, it will store diagnostic trouble code (DTC) B229A in memory and send a message to the restraints control module (RCM) which illuminates the air bag indicator.

Possible Causes
An OCS system contamination fault can be caused by:
- a foreign object within an occupant classification sensor rail.
- a faulty OCS system component.