Bench testing a 3 speed wiper?

I seen a post many years ago about bench testing a 3 speed wiper
I just found a old wiper that I'm not sure where came from. So I'd like to bench test this one first

Here ya go

All seen was checking of a 2 speed motor ?

Jules had a video on youtube on how to test one.

Check you tube. Found motors that were showing did work. But nothen showing what wires. Do what