So where IS the switch? That plug looks like the data link connector. It is always blue and near the steering column. That is for connecting a scanner to talk back and forth with the Air Bag Computer, Transmission Computer, Body Computer, and ABS Computer if you have one.
There is a similar female connector body on the end of the brake switch wires but it is usually black. If what you have in the third picture is in fact for the brake light switch you should be able to follow it to the switch. I think though, since you said it goes into the wiring harness, you need to find a different connector, a black one, for the brake light switch.
Thursday, August 16th, 2012 AT 7:07 PM