I have a strange problem with the rear right door on my 92 9000CS. The interior light intermittently comes on and off when I am driving and the open door display on the dashboard shows the door is open. This display shows the door is open all the time - it's not intermittent. I have looked at the switch, and it appears fine. However this switch (the push switch on the inside of the door frame) is not used for the dashboard mimic - ther must be another one somewhere else, but I can't find it. Anyone any ideas? It keeps setting the alarm off as the interior light sometimes comes on on it's own when I'm parked!