How did the airbag regulating valve leak before releasing hook 6?

Does the subject want to ask "the reason of air leakage of airbag control valve before j6 liberation"? The valve body is damaged, and the sliding surfaces of the valve body and the plunger seat are deformed.

1, valve body damage: the valve body itself is damaged or the contact surface is affected by dirt, in which case the valve is prone to air leakage.

2. The sliding surface of valve body and plunger seat is pulled: the sliding surface of valve body and plunger seat is pulled or poorly lubricated, which causes the valve to be blocked, so that the moving force of plunger seat is greater than the pre-tightening force of valve return spring, resulting in air leakage.