After I did the flashlight test, the next morning I proceeded to put a piece of silver reflecting tape on top of the lens on the driver's side door. To proof the theory it worked. It was a very simple reflecting tape, that when lifted to the sunlight you could see light coming through, but not enough to interfere with the function of the IR door system. After a while, the tape worked intermittently but when rubbed against the lens again it worked continously. I belief that if I'm able to find a reflecting tape with the right properties and diassemble the door panels and so on, and place it on inside between the lens and the sensor it would probaly work. Another thing, My son also, went ahead and put a little saliva on the surface of driver's door lens and it worked until the it dried off. I'm first going to try my son's theory and repair the outside of the lens with a plastic repair kit that I happened to acroos see on the internet.