I have a wiper motor & switch that came with the car. Motor has a switch on the gear it is a 5 lug directions said High Low & Ground don't use the 2 lugs across from High & low.The switch is a 5 lug also marked B (2 lugs) H-W (1 lug) L (1 lug) P (1 lug) there is continuity between P lug & L lug when the switch is off position I belive.
Thanks Ken