1994 E320 Wagon, 175k mi

I am not getting voltage to my kickdown solenoid, testing shows I am not getting 12V into the switch.

I need to figure out where the switch receives power from. Not in my crappy technibooks manual wiring diagram. Any suggestions or lnks to wiring diagrams?

Also having kickdown issues in general. Trans was just fully rebuilt (me) didn't touch valve body as was shifting find before the failure that forced the rebuild.

Thanks!