I am sorry but based on my reading of the eLearn diagram, which I agree is slightly inaccurate in its original form, I cannot agree with the above.
I have attached a copy of my corrected version of diagram E3020. Please note that by convention, all relays and switches are shown in the de-enrgised, or off position.
The wiper motor is at the lower RHS of the diagram. With ignition on. the wiper motor receives a 12V supply at pin 3, wire colou L = blue. The motor unit receives controlling earth signals on three wires including one for park.
In my opinion, the eLearn functional description is of little use, so what follows is my interpretation of the diagram.
With the wipers not in the parked position, the park contact inside the motor is operated. This sends an earth signal back to the column switch assembly, which probably contains some electronics. When the wipers are switched off the "not parked" signal from the motor is either relayed or directly returned to the motor, via the lo speed wire. (My naming, but consistent with eLearn.) The motor drives to the park position, where its internal switch opens, and the signals are removed. Any corrections are welcome.
If I am correct, then I would expect to see an earth signal at pin 6 of the motor (wire colour HN = Grey/Black), when the wiper blades are not parked. If testing for this with a multimeter, then perhaps check for resistance to earth, as the internal contact could be high reistance.
I am puzzled by the connection immediately to the left of the park contacts inside the motor box on thediagram. It does not appear to serve any useful purpose.
