not the easiest problem to explain but I shall have ago:
when the battery is disconnected the drivers side door can lock and unlock as normal and door will open and close.
once I reconnect the battery and lock the door the door deadlocks, i turn the key and the door pin will rise but the door still will not open.
i disconnect the battery and the problem is gone

very confused. only for the drivers side door.
I was told it could be due to the Gemini alarm present on the car, I have removed the alarm completely and the problem is still there.