Fault Code B0300
Code meaning, symptoms, possible causes, part number, and estimated cost.
B0300
Occupant Classification System (OCS) Fault
This code indicates a general fault in the Occupant Classification System (OCS). The system detects if a passenger is in the seat and their weight to control airbag deployment.
Part Details
Part Name
Occupant Classification System (OCS)
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪900 - ₪3000 (repair only at an authorized garage)
Engine Location
Sensors located in the front passenger seat, control module under the seat
Symptoms
- Airbag warning light illuminated
- 'PASSENGER AIRBAG OFF' light on when a passenger is present
- Airbags will not deploy correctly
- Sensors unresponsive
Possible Causes
- 1Faulty seat weight sensors
- 2Malfunctioning OCS module
- 3Damaged or shorted wiring
- 4Foreign object on the seat affecting sensors
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