I have a strange fault with the drivers door window on my 2004 Signum.

Symptoms are:

  1. Window works fine with door closed or fully open but not at halfway
  2. One shot does not work unless you reset (window down & hold followed by up & hold) - this has to be done everytime the car is restarted or door is opened.
  3. Windows all open using key fob but drivers door will not close using fob (others OK).
  4. Auto close on rain sensor now not working

All this seems to have started a few days after I had a new alternator fitted, though this could just be a coincidence.

Anyone got any ideas?