what this for?

[its_teddd]

i found a wire but i dont know what its for! i drive an s13 coupe base model btw.
http://i38.photobucket.com/albums/e140/mrxskyline/DSC00668.jpg

[KA-T_240]

power steering high pressure switch.

If you do not know what something is, fallow the wires, one well go to a box of some sort, the other well lead you to what it does.