How to Bench Test Wiper Motor?

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There is not black and red wire so the shop manual instruction above is not the right one.

Lets see if we can figure this out.
Dana has been through the switch in detail.
https://www.forabodiesonly.com/mopar/threads/67-2-speed-wiper-switch-demystified.559863/https://www.forabodiesonly.com/mopar/threads/2822963-wiper-motor-2-speed-park-bench-test.534937/