f350 cruise control problem

I have a 1999 Ford Superduty F350 4x4 supercab.  The cruise is not working at all.  The dash light does not come on.  I am not getting any codes thrown.  The fuse is not blown and all wiring seems to be in good shape.  The cable going to the throtle seems to be ok also.  I had a factory recall for the vehical speed control done a few months ago and it did not affect my cruise, but I checked the jumper they installed and the 2 amp fuse was blown.  I replaced it and it did not make any difference.  I took the jumper completely out and plugged the factory wire back into the brake pressure switch  and it made no difference.  I tried a run down the road after each thing I changed or modified and made sure I was above 30 mph so the cruise would activate.  I have run into a dead in since my Haynes manual is really vague on the cruise control.  The only other option I have at this point is to replace the cruise control module.  Can anybody tell me how to start tracing the power to find what part is bad.  I have the wiring diagram, so any input would be greatly appreciated.

Thanks

Jerry

Obviously something is wrong here.  I can see 34 people have viewed my post and no replies.  Is this in the wrong forum?  Can a moderator move it to the right place or tell me it is wrong and I will post again in the right place.  I just need help.

Thanks

Jerry