Ok, folks. ... David.... anyone...
I ordered the suggested part that was recommended. Installed as suggested.
Cart will creep forward (or backwards if in reverse) an inch or so, then stops. When the pedal is pressed, I can hear a relay clicking sound at the rear of the cart, and then a second or so later, the same relay clicking (or unclicking depending on your association) sound and movement ceases.
I've tried disconnecting and reconnecting the batteries. Flipping the Run/Tow switch to each position a few times... I've even offered it wine and crab cakes, but no cooperation.
Anyone else?
Oh yea.
Fully charged.
Not going to delete the post, leaving it for educational purposes for the masses....
David (who happens to be a pretty dang good source of info... and parts) called me back (after hours). My pedal issue seems to be resolved, but I may now also be facing a secondary issues with brushes.
Yay, me.
David, thanks for the quick response.