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Home >> Volvo >> 2007 >> S40 Base, 2.4 38, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Miscellaneous Components - Design And Function (544 Body) >> Supplemental Restraint System Control Module (SRS) (2004-2007) >> Design >> Adaptive SEATBELT Force Limiter (USA/CDN Only)
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Adaptive SEATBELT Force Limiter (USA/CDN Only)

Fig 1: Identifying Belt Retractor Sensor (USA/CDN only)
GLL117756Courtesy of VOLVO CARS OF NORTH AMERICA.
WARNING:

Never use an ohmmeter or similar tool to test airbags, inflatable curtains adaptive seatbelt limiters, adaptive steering column or seat belt tensioners. Disconnect airbags, inflatable curtains adaptive seatbelt limiters, adaptive steering column or seat belt tensioners before testing them. Failure to do so may result in accidental deployment. This could result in serious injury or death.

The adaptive belt force limiter improves the seat belt function in the event of a head-on collision when the airbag has been deployed. There are two adaptive belt force limiters in the car. These are located in top of the belt retractors, positioned at shoulder height on the driver, s and front passenger seat belts.

The adaptive seatbelt force limiters are electrically separated from each other. The adaptive seatbelt force limiters have a pyrotechnic charge which adapts the seatbelt force to a lower level against the chest on activation.

The adaptive belt force limiter, belt retractor, belt retractor sensor and belt tensioner are mounted in a unit. If there is a fault in any of these components, the entire unit must be replaced.

The adaptive belt force limiter and lap belt tensioner use the same connections on the supplemental restraint system module (SRS). Thus, they cannot be connected at the same time in the vehicle.