Are you sure the drill looking end isnt looking like that because the cable has snapped? I thought similar thing when mine went for the first time Cost me like £10 fitted it myself and job done!
Could be a couple of things. Not connected. Bad connection. Faulty sensor. Well that's where i'd start at least Edit: i'd probably check the gauge although these are usually the last piece of a puzzle to make sure it's not stuck etc.
I haven't changed any but I only picked it up last week; it was already like this. I will check the bulbs tomorrow as well as go on a hunt for the ground... would there be a ground specifically for the right side then? Might have to break out the wiring diagram!!
Any idea what could cause this? *edit* these are standard and not LED Nearside are functioning fine. Does anyone know if there is a separate relay for the ns to the os? I tried listening/feeling for the relay but it's silent when they are on! I don't know whether it's related but the brake light isn't working via either front or back. Any help much appreciated!