Weird, my alldata just goes to the screen "Toyota does not provide a procedure for reading or clearing codes without a manufacturer scantool". I'm using alldatapro online, do you have the cd version or something?
You know, I've come across this before. Info that you think would be logically categorized under a main heading is instead hidden in some odd little corner that takes ten minutes of searching. Maybe that's only for the online version though, I don't know.