We will skip back to the old post after this one & I will copy this one on the old post too.
The only thing I can offer is..... if you have a wire that goes on pin 36, tape it loosely to the harness and, where the wire ends, look in the harness for a spot where a wire may have once come out. If you find nothing, be prepared to cut back the harness tape and look inside to see where your broken wire may have once attached to a wire in the bundle.
If nothing comes of that, then you can assume the wire left the bundle and was attached to a sensor or something else, so do something similar with all the area around the end of the wire.
This wire may have been attached to something and was left attached while the motor was being removed, and if never discovered, broke during the removal.
If the motor has ever been out.... this might have happened.
Your best bet is to look on the harness of an operating car and see where it goes, you know the harness location so you have a place to start.
If you give an exact harness location to us, someone on this forum will look on their car to see if they can spot your black wire going somewhere.