This new reproduction door open warning switch is for 1966, 1967, 1968, 1969 Continentals and Mark III's and, 1970 Lincoln Mark III

FOR DRIVER SIDE REAR ONLY.

In the convertible it controls the "Auto Drop" of the rear windows. When the latch is activated, the window will drop several inches to allow the window to clear the top cloth as it opens and also allows the vertical weather strip between the front and rear doors to separate sufficiently so that they do not interfere with each other as the door opens.

On non-convertible cars, this switch activates the courtesy lights as the door opens.

These commonly fail due to corrosion. Failure will cause the window not to auto drop and courtesy lights not to come on.