2001 Ford Taurus transmission problem

just drove back from florida 1000miles--ran perfect--washed the car two days later and did small trips--parked it and when I started it the next day-no tramsmission at all..no sounds except the engine running, fluids ok-not burnt--
not even the slightest movement forward or backwards

could this be an electrical problem--my obd II does not detect any transmission codes--in the 700's--don't really know if this reader reads trans codes.

anyway, lost job last year, money tight, can you give me a workable plan to diagnose this problem?

thank you