Wiper motor '77

Hi all, it seems my wiper switch succumbed to the Prince of Darkness. Will have to see if Moss gets replacements back in, they are out at the moment. From my Googling I've figured out the low speed and high speed wires, but the diagram for the switch is very poor on how the parking wire figures in. I used a clip lead to energize the low and high speed wires and the wiper motor works with the switch unplugged. If I wanted to park them properly in the meantime, would I energize the parking wire, or jump that to the high or low, or ground it? I suppose I should measure it and see if there's voltage present on it with the switch unplugged; no voltage present might mean that energizing it will park the wipers.

I am suprised no one has answered you.
I cannot help as I have the old single speed wipers.
However, inside the motor is a semi circular metal strip that keeps the current flowing after you kill the main power. Motor continues to run till the end of the strip which is the parked position.

Thanks Joe, I figured it out. The parking switch wire from the motor gets 12 volts on it when it's not parked. Jumping that to the low speed wire got them to park and stop. Now to find a replacement switch...