OK today I went to my friends shop and we tested the wiper switch, the firewall plug connectors and the wiper motor with his 12 volt powered test lights which let him supply the power to a circuit independent of the battery or switch. The motor would turn at one speed when he put power to it, but his ultimate diagnosis is that the motor is bad inside and not making the proper connections internally when prompted from the switch so a new(rebuilt) motor is on order and will be available tomorrow from my FLAPS. Replace it and see what happens (sigh). I am still worried about the PO's mods to the electrical system and the extra wires running. Fingers crossed!
