GE Triton XL won't drain water

Dishwasher Repair
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1

I have a GE Triton Model GSD6660G00SS that will not drain all off the water in the bottom. Reference this parts list- http://www.appliancepartspros.com/partsearch/model.aspx?model_id=209983&diagram_id=21847928#d21847928

After reading advice in the other posts, I have done the following:

  1. Checked the drain lines from the pump drain assembly and the air gap assembly all the way to the disposal. All clear

  2. Ran the drain pump (#325) in the Service Mode and can see water is pumping out and hear it draining in the disposal

  3. Checked the turbity sensor (#321) for debris- none

  4. Disassembled the inlet sump (#505) and checked for debris- none

  5. Cleaned the filter fine assembly (#451)

  6. Replaced the drain pump (#325) and still have standing water.

Should I try a new turbity sensor or do you think my logic board is bad?

Thanks for any answers you can provide!

Joe