The Freightliner help desk can help you, and an get you a wiring diagram. They may not be able to tell you where the fuses/relays are located, however.
When Freightliner delivers the chassis to the motorhome manufacturer, there are at least two fuse/relay boxes strapped to the chassis that will be located in the motorhome body by the motorhome manufacturer. These will generally be located near the front of the coach. On my Holiday Rambler, they are in the storage bin, driver's side, just below the driver seat.
These two fuse/relay boxes are well labeled, with the labels being pasted inside the plastic cover of the fuse/relay box.
If you can find these two boxes, check for a blown fuse there.
Fred & Vicki
Richmond Hill, Ga
2000 H.R.Endeavor/Freightliner/330 Cat