Here's the update. Pulled the battery tray and the pump and bench tested it. Seems identical in "pull" to several others I have. Plugged it back in and got power run to it. Under the dash, found the brake pedal switch snapped and not in place. Bypassed it (ordered replacement). Pump will move the pedal via the diaphragm, but not very much. The system has been weak for about a year now. That is, on engagement it seems to have trouble holding on, and accelerating via the cruise is very slow. If there's a leak, I cannot hear it. Hose at the pump is fine for as far as I can trace it easily. I cannot hear the diaphragm leaking either, but I'm thinking that must be it. Just as another aside, a few months ago I finally took apart the throttle return spring and moved it around to lower the tension (after 20 years complaining). Never understood why it seems all the NA cars have such a heavy pedal and the turbos don't.