Deadlock and electronic problems. Hi before starting taking things apart, It happen to me. You must take the negative wire of the pole of the battery, put some isolation cloth or something on the negative pole of the battery so that the negative wire that you take of cannot touch it. Then you connect a loose wire to the negative wire that you take of the battery. Connect the other side of the loose wire to the positive side of the battery. And leave it for a hour or more. Take off the loose wire and connect the necative wire back to the negative pole of the battery. Swifch the ignition on but don't start for 1min. Switch of and take out the key for 10 sec. Then start the engine and leave to idle 3min. Switch of the car and test your cars door, if it was in deadlock problems. I have done it and it work for me. Hope it was useful information.