It is all very strange. I have taken the door panel off and like LeeDixon80 (above) says, I too have had a look at best as possible at the wires, which are trunked and then only individually exposed at the various plug heads. I could not see any that were broken. Another anomaly now is that the the LED light for the alarm does not flash when it should as armed but it is armed as it goes off if the locking mechanism has not disarmed it in respect of my first posted problem. However, I have realised that if I lock or unlock the car via the tailgate, although no alarm LED is present, it does lock and unlock properly every time on all of the doors. Another theory of mine is that the drivers doors mechanisms appear central to the issues here and since having some work done on the car a few months ago, the drivers door internal control panel (all windows, door locks etc in handle) has never fully worked, firstly with a loss of control over the rear door windows (no up or down working) and now the central locking on the door too i.e. the doors can all be locked from this panel but again, only the fronts will unlock and this often leaves the back doors locked in a way that they then can only be opened from outside. Is there value in replacing this whole hub of switches (it comes out from the handle as a block)? It has one plug head going into it, which spurs off to different places. Has anyone else had issues with these controls? and Is it possible that this is the source of the problems?