+1 or if it is an issue then you should be able to find the fix easily. If you cant then I'd walk away. Could get John to get you the parts from work
If you can override it with the key then its likely to be some kind of solenoid that you are manally pushing out of the way, so its likely that is shot, but not knowing the car, how do you know its not the controller, ECU, etc? Really needs someone who knows about them to comment