hi, i have a toyota avensis 2001 petrol vvti. recently i was replacing battery

[Mani]

from main key,? bymistake i damaged circut board which oprates lock unlock alram function, the car still starts drives ok aswell, but remote functions donot work anymore,i have to open manualy and every time alram goes off aswell. i been to toyota but they cannot make another key cos it is now impossible to get code from broken key,the only key i had. they advised to replace ecu or computer something which will cost alot, beyond the price of car, i was looking on ebay for "central locking systems, use orignal wiring " i was just gonna ask will they work for this car