Rokn1517tjr

I followed line 6 Dave's tuitorial on using exp pedal for vol. and wah. With a preset and a new tone patch. The exp 1 and exp 2 red and green lights will not toggle on and off, respectively. And I don't get the dual effect transaction. I don't know if I'm missing something, or if there is something wrong with my pod hd 500x Please help !?