Bosch Ascenta SHE4AM12UC cycle terminates early

[Yah Shoor]

So I just finished installing a remanufactured logic board, on the strength of the advice of the internet, but the machine still won't complete a cycle, so I feel like I'm back to step one. Anyone out there have any advice for me?,

The story thus far: Our dishwasher stopped washing dishes, it would stutter for a while, then start the washing cycle, and then go straight to "clean" without actually washing the dishes, leaving a pool of water standing in the bottom of the washer. It is possible to get the dishwasher to drain correctly, if you start a cycle and then interrupt it by opening the door, shutting the door, and then cancelling the cycle. At that point, the machine will drain successfully.

When I run the self-test, it comes back with a blinky code indicating inability to drain. On this page (https://www.manualslib.com/manual/958098/Bosch-She4am12u.html?page=45#manual) it's either E23, E24, or E25. I have performed the following steps:

1. Pulled off the drain cover and spun the little impeller by hand. It spins freely.
2. Run the drain hose up 20 inches above the floor, before it goes back down to the drain. It wasn't set up like this before, and worked successfully.
3. Unhooked the drain line and blown air into it, verifying that the hose itself was not clogged. That did not taste good, btw.

So it seems like it might be time to break out the multimeter, right? I am cheesed that I have already dropped $100 on this with no resolution, and suspect that if I break out the multimeter and the repair manual tells me to replace the drain pump, then I will again spend a pile of money with no resolution, and continue washing dishes by hand.

My outstanding questions is: If the drain pump to power harness continuity check fails... what then?

[Yah Shoor]

I would also like to know about "cs test program" which I suppose would allow me to see exactly which error code is thrown, instead of just trying to interpret what the blinkenlights indicate. I bet that is something that I can't get access to as a mere consumer, right?

[Yah Shoor]

Wow, I wish I could edit my post! I see from looking at the repair manual that the part I replaced is the "base mounted control (power module)." So I guess a) it's not a logic board, and b) I've already replaced half of what I could replace to fix draining problems, and the seemingly functional drain pump is my only remaining option. Help me, Obi-Wan, etc etc etc. Thanks in advance for your assistance.