I have read a lot of discussions on airbag modules and remain confused.
It is mentioned in many threads that the VIN number has to be programmed into a replacement airbag module, using one of Porsche's diagnostic tools. But there are a couple of threads of just replacing the module with a used one, resetting the error codes and all is good.
This is an example:
http://986forum.com/forums/diy-project-guides/51789-diy-airbag-module-replacement-reset.html
So is the reprograming of the VIN really necessary?
My Durametric gives a list of codes for the airbag, but the important ones are:
"3 - Supply voltage
195 - Control module internal fault - All fault codes over 100 indicate a critical fault and usually require a new control module"
I checked the supply voltage and it is OK... so it would seem that the module is defective.
Thus my interest in replacing the module.