peanut

Hi all, my X reg s turbo has developed an immobiliser fault. It fails to disarm so the car won't start, I've had an auto electrician down to look at it, however upon multiple attempts to access it via the keypad we came to the conclusion that the issued code had been changed by the previous owner. Now, I want to know whether the immobiliser can be removed entirely at home so the car only needs the key to unlock and start?