Kenmore elite no drain

get the LD signal.
no obstruction in any hoses, filters. etc. unit is apart now.
guessing there is something that tells the pump to drain the tub
(sensor, time, ?)
that signal to the control board
then signal to pump
very handy with a volt-ohmmeter:
If there is a sensor to tell it that its time to drain, where is it?
If the control board is telling pump to turn on, what voltage should be at pump, guessing 115vac.
Don’t mind buying a new pump, control board, etc just trying to buy the right part one time.
A wiring diagram and it’s solved but don’t have one of course.

thanks for your input

I’ve read some info on this sight about the same problem.
Many have found a blockage, many have not.
The ones who have found a blockage have removed same and been ok.
The others have installed drain pumps and still had no luck.
I’m wondering what else there could be.
Is there a check valve or float switch or ??
This does seem to be a typical problem on many types of washers.

bummer.
apparently no solution for this.