2005 Volvo S40 Owner's Manual - Page 13
2005 Volvo S40 Manual
Page 13 highlights
bruises, swellings, or other injuries as a result of airbag(s) deployment. When installing any accessory equipment, make sure that the SRS system is not damaged. Any interference in the system could cause malfunction. Never try to repair any part of the SRS or SIPS bag systems yourself. Any interference in the system could cause malfunction and serious injury. All work on these systems should be performed by an authorized Volvo retailer. pg. 19 Occupant Weight Sensor - disabling the passenger's side front airbag Occupant Weight Sensor (OWS) indicator light Disabling the passenger's side front airbag The passenger's side front airbag is automatically enabled/disabled by the Occupant Weight Sensor (OWS), a system that monitors the weight of the person or object in the front passenger's seat. The system consists of a silicon-filled bag located under the padding in the front passenger's seat cushion, a control module located under this seat, and a seat belt tension sensor, located on the outboard side of the seat. If the system is functioning normally, the status of the front passenger's side airbag (enabled/disabled) will be shown by the OWS indicator light as explained in the table above.