my battery holder has come away from circuit board in my 2002 vauxhall astr?

It sounds as if you will need a new fob,a main dealer wil supply one but think you will need your V5 and some ID to order, it will need to go onto Tech2 to code in and a four digit security code which came with the car will be needed also,if you don`t have that then expect another bill to supply it.

cdc
March 2014