After triggering of belt tensioner

After triggering of a belt tensioner, driver's and/or passenger's unit

After triggering one or more air bag units (driver's, passenger's and/or side airbag).

NOTE:

Because it is difficult to visually determine if one or both belt tensioners has been triggered, check the following points.
Read out the airbag fault memory with the Porsche System Tester.
Check plug connection on the belt tensioner for damage.
Pull out the belt strap as far as possible and check for wear.
Perform a function test on the automatic belt device.