I have a 2011 Mazda 6 estate. Yesterday I opened the tailgate fine in the morning but in the afternoon it would not open. I then found out the central looking wasn't working either. The key fob is working because I can hear the relay when I press it. There is also power to the doors and tailgate as all the buttons on the exterior handles beep when I press them, as if a door is open, they don't actually lock the car. There are no open door symbols on the dash. I'm thinking that the electric tailgate switch has gone bad but I'm wondering if that would cause an issue with the central locking. I also wonder if anyone has had this problem or have any other theories of what the problem is?