i think that hose you're pointing at is not the pressure hose. i think that's the return hose, because it enters at the top of the reservoir, which is at the bottom of the fill/measure chamber, which has the screw cap on it. The power hose comes out at the bottom of the pump/reservoir, winds around down and toward the front of the vehicle to enter the steering gear box from the front. Nonetheless, I ran my hands the full length of both hoses, from pump to gearbox, and there is no electrical connector or T-fitting on either hose.
Is this T-fitting with the pressure switch an integral part of one of those hoses? If so, which one? If it's not an integral part, then it must have been added at one of the ends of one of the hoses. If so, which hose, and which end?
If I could just indentify the thing, see a picture of this T-thing, I will have a better chance of finding it.
I hope i'm making sense to you.
I've searched the garage four times looking for a T fitting for a vacuum hose, with a male two prong connector on it, and have come up with nothing.