2010 Ford Transit Mk7 all keys lost and active Cat1 factory alarm.
Key learning cannot be carried out by normal OBD operation with alarm active as key learning by OBD is blocked.
Removed BCM, read key data (chip MC9S12DG256) directly from the module using xhorse vvdi prog on the bench, added a new key on the bench with xhorse vvdi2, installed BCM back to the van, switch ignition on with registered key and alarm is deactivated.
Now we can erase all keys and add new all by OBD.
