I Need PIN Code For Opel Corsa-D

Hi Anyone got any ideas if there is anyway to get the security code via the on board chips in the BCM as I need to program some keys back into the car.

I can remove the chips-read/write and put it back, no problem if anyone got the info on the if its possible.?

I am aware that there is a software fault in some of the BCM's and it may well be these ones, Central locking is working fine but got the immo sign flashing and car will not turn over at all.

apart from paying the main dealers bucks is there any vin to pin calcs that cover this item about.

Thanks