My Vectra c 2002 2.0dti has started to put up immobiliser fault and won't start without turning key on off , I have no other problems with dials or anything , if I could get a second hand cimm brain key ect from another 2003 2.0 dti would it work without any reprograming with tec 2 , I no where there is 1 being broke with a seized engine so if I was to remove all the said bits would it work or not , if it will work can anybody list what else I will need to get it to work without the tec 2 ect thanks for any help offered ps if this doesn't work out I will be scraping the car as it is far to expensive to fix with new parts ect