2005 Honda Odyssey Power window failure

Power windows all failed at same time (except the driver window).
It does not seem to be a problem from the lock out button on the drivers door because you can hear a sound (a click) in each door when you push the window button on drivers door. When you push the main lock out button on the drivers door and you push each window switch you cannot hear any sound from each door. So it seems to be sending an electrical signal to each window. I followed the fuse diagram in the book thinking it probably is a fuse, but I could not get to the 40A fuse for power window as diagrammed in the book. Each separate fuse for each window is good. Someone told me it could be the regulators, but would all three, except the drivers, stop at the same time? Can you tell me if the black plastic cube inside the main fuse box is hiding a 40A fuse under it that may be the cause of the window failure? I don't want to crack the plastic with channel locks if there is nothing inside the little cube.