delete Crash data and test it without the car

Sorry but I'm a p? "impappinato" :-) to explain what I need , but I hope you understand the sense.
So now I shot one, ok ?
How do I test an Airbag ecu that I have already cleaned up from the crash without remounting it in the car?
It says on the bench? Booo.
You could do with the diagnosis and 12V power supply ?
What I don't know ? how do I know if c?? an error on the part of the control unit.I know the operation, and the cio? there must be a?input and an output that responds, without being blocked.
But if you please you may have a guide long or short that is okay, or a video?
Thanks and I hope in a solution.

you can connect it with the power supply always if you can find the skema and if wired in k,you connect directly with the diagnosis and see if there are crasch, but you will find all the errors duvuti to the lack of fillers and sensoni, riscirai, however, to see if there are errors inherent in the impact in can have never tried it, usually it is a good rule you head on veioco, when it is on the bench say you go a little luck.
I give you my most recent experience I for a 500 the do the type tells me that there are errors, no ? can a file was tested and used at other times I do pertare the car and the error stored was lack of configuration ? enough to realign everything to resolve the problem then I suggest to always have the car on hand for any evidence to say that ? you your test bench.

You agree in full with legendary, it takes the car....

Thanks, I got it. Yes, but the other errors do not concern me so much.I want to understand if I restored the Crash.As I understand you, write back the complete file from another ecu already? read? I like having the collection file of the control units airbag, I can do the procedure of the FF, or, in general, clear method, by software.Even if you sooner or later avr? need the file, why? many times ? pi? convenient to write a new file, than doing them by hand.

So if I connect the unit as the diagnosis,with the power supply and I can transpose the Pin K-line or C-line c? the should I do to get a if c?? still crash or not?