Front End Medium-Severe Head On Collision SRS Operation
Only the seat belt tensioners (SBT) are triggered.
The ORC registers medium-deceleration (stage-one threshold) due to a collision.
The triggering pulse is transferred only to the SBT squibs, because the restraint function of the seat belts in combination with the SBT is sufficient enough to effectively protect the vehicles passengers for this type of collision.
A check is made whether the seat belts are fastened. If a seat belt is not fastened and the stage one threshold is exceeded the driver and passenger airbags are triggered to provide protection for the front passengers.