Help identify this plug
 

It's in front of the fuse box by the drivers side strut.
There are 3 white plugs in front of the fusebox.
One is large, and there are two of the same size.
I am talking about the smal plug closest to the fuse box.

I unplugged it cleaning my engine bay, and am wondering what it does. My car runs the same, and none of my lighting is malfunctioning as far as I can tell.

I would find this out myself, but my friend has my FSM

https://www.rx7club.com/forum/attach...&postid=927660

https://www.rx7club.com/forum/attach...&postid=927662