Just purchased a 2010 cobalt and the door locks don't work. If i press lock or unlock on the drivers door nothing happens same on the passenger. However if i press the lock down and then press the passenger lock button it unlocks and chimes at me. Only the passenger side does this. It also sounds like its trying to unlock the doors when either door is opened. I tried replacing the lock switch on the drivers side since it was completely unresponsive and nothing changed. Any ideas?

 

Any codes?

 

no OBD codes, no lights either