Fault Code B0305
Code meaning, symptoms, possible causes, part number, and estimated cost.
B0305
Occupant Classification System (OCS) Sensor Fault
This code indicates a specific fault in one of the Occupant Classification System (OCS) sensors. A sensor fault can cause the system to incorrectly detect passenger presence or weight.
Part Details
Part Name
Occupant Classification System Sensor
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪700 - ₪2500 (repair only at an authorized garage)
Engine Location
Typically located in the front passenger seat, under the upholstery
Symptoms
- Airbag warning light illuminated
- 'PASSENGER AIRBAG OFF' light illuminates without reason
- Airbags may not operate as expected
- System does not detect objects on the seat
Possible Causes
- 1Faulty seat weight sensor
- 2Damaged or shorted wiring in the sensor area
- 3Physical damage to the seat or sensor
- 4Incorrect system calibration
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