We have a 2007 Daihatsu sirion 1.0 centenary and have a problem with the central locking on the rear doors only happened a few days ago but for some reason when we lock the car with the remote the front doors and boot lock/double lock but the rear doors dont lock at all unless you do it manually from the inside.Has anyone had this problem if so or not does anyone know whats wrong with it and how do we sort it any advice would be gratefully recieved many thanks Richard.