hpi4

Hi can anybody help When i pt key into drivers side door, the door opens but none of the others, it also makes a constant beeping noise togther with a contant attempt by the back door lock to close (like it wants to hook onto the latch but cant). Soon as i close the drivers door, the beeping and the back door lock stops making the funny noise. I also think this has had an affect on my interior lights (dont work) Can anyone help please