In good working used condition, the part number for this unit 55590539 is ident ABHG. This will need to match the number on the back of the ECU you are replacing. This ECU is in a divorced/reset state. You will need to have a qualified technician with Bosch Tech 2 software removed your faulty unit and re install the new ECU in order for it to work. They MUST be programmed to the car correctly with Tech 2 otherwise this will not work. Please do not try and install yourself. To fit all Vauxhall Corsa D models 2010-2014 with a A12XER engine fitted and the correct part numbers as mentioned above. Price includes delivery via Royal Mail Special Delivery. ***Please note this listing is a bulk listing and the ECU imaged is purely for illustration purposes***