2006 SCREW, 5.4, XLT, 2 wd

Original problem, drivers power window would go down in both modes, slow, fast, but occasionally would not go up until working the switch a couple of times.
So......I bought and installed a new OEM switch assembly, purchased from the dealer.
Now...no express down at all, otherwise works fine.
I've heard mention of a power window module, if so, where is it?
Help!

Thanks,
Ken

 

the power window module's availability depends if this is available on the OEM switch assembly.