can you reset the ecm on a 2002 grand caravan 3.8 without going to dealer? on 2002 Dodge Grand Caravan

installed a used ecm after original one was shorted out after transmission was installed and now the van doesnt even turn engine over.tried to write vin in with genisys evo but it said a valid vin already excist and cant be written. any help?

Asked by for the 2002 Dodge Grand Caravan
dealer or mobile programmer with the proper equip