Wild Bill,

Thanks for the tip about the LED. The car is a 1988 Pontiac
Firebird Trans Am GTA. But I think mounting of PCB's in auto wiper
motor applications is pretty standard : A plastic cover on the wiper
motor contains the pcb. I bet they are all ( 99 percent) attached to
the plastic cover the same way, with these little posts. But I could
be wrong.

BTW, I cleaned up the pcb a bit by gently scraping the metal contact
areas with a clean fingernail, reassembled it on the wiper motor, and
most of the functions have returned. But there is still one proble.
The off position does not work. May need to find a break somewhere on
the pcb.