Recent discussion on why an engine bay light wouldn't turn off brought up this part:

http://store.delorean.com/p-9651-lgt-sw-actuator.aspx

This is the little clip that is what the light switch presses against to turn itself off. The clip attaches to the underside of the lower engine cover. When the lower engine cover is lowered, this clip comes into contact with the plunger on the light switch and turns the light off.

Here is a picture of the switch and clip from a distance while the lower engine cover is up:

IMG_4727.jpg

The second photo was taken with the lower engine cover almost closed and is attempting to show how the clip comes down to press against the plunger on the switch:

IMG_4731.jpg