Dishwasher starts but never changes cycles

this is a second hand dishwasher and I am not sure how old it is, the Service Data Sheet states “Electronic Series”
The dishwasher comes on, heats water, will pump water out when shut off, but never changes cycles.
Any ideas what is wrong and how to fix it??
Thank you.

Here are the parts
Replacement parts for FRIGIDAIRE FDB1050RES0 Frigidaire/dishwasher | AppliancePartsPros.com

Here is the tech sheet
http://manuals.frigidaire.com/prodinfo_pdf/Kinston/154547901.pdf

[COLOR=Blue]Any ideas what is wrong and how to fix it??[/COLOR]
Try different cycle types to see if anything will run. This may help you narrow it down.
Try running the diagnostics.
Check the pump motor winding for continuity