Where does this wire go?

Hi,
I have a 97 GTP and I am trying to figure out where a wire goes. The wire is on top of the master cylinder. There are two wires that plug into it, and there is one wire that runs inbetween these wires that has a senor on it that it taped off. Where DOES IT GO???? I can't find out where it goes or where it is supposed to go. Any help would be wonderful.

Thanks

Let me clarify a little. The two wires plug into sensors on the master cylinder below the brake fluid resivoir. The third wire or plug is not plugged into anything. Anyone got any ideas?
Thanks