Someone somewhere on a a board or forum, and I do not recall where, recently experienced the same problem with a Fuse. I seem to recall that they finally discovered that something had rolled under the handle of the e-brake and while the light went out, it was not fully down and something was still triggered. Wished I could remember the details. It was quite recently and I have searched RV.net and IRV2.com with no luck so far.
Charles
'03 Ram 2500 CTD, 5.9HO six speed, PacBrake Exh Brake, std cab, long bed, Leer top and 2008 Bigfoot 25B21RB.. previously (both gone) 2008 Thor/Dutchman Freedom Spirit 180 & 2007 Winnebago View 23H Motorhome.