To CarloK -
Tks for the advice. I ran the diagnostics and the capacitive sensor was not reading properly.
Soldered the red wire back on and bed leveling tested just fine. I noticed the black wire was very tenuous
and seemed to be hanging on by only one of the strands of the multi stranded wire.
I did not touch it yet as everything seemed to be ok. Kinda tight in there, but having a high reliability soldering in the 70's, it wasn't too bad. Stripping the wire was fun....