I don't see how you can run a cycle with the drain pump disconnected. Same thing applies to the idea of running it with the circulation motor pulled out. I would expect someone to give me resistance values for these components to see if they have shorted out.
I was hoping for an answer that said check a "contactor switch" or do a continuity test for the timer. Or offer some guidance based on past repair history.
My Better Homes and Gardens home repair book is more helpful than this.