Had the coach back for a while and, yes, the problem is really fixed. The house batteries charge on the road as long as Aux Batt is set to On. Before the grounding problem was fixed this was not the case.
In fact, with the engine running I can draw 1000 watts on the house side with no net loss on the batteries.
There is no FCCC TSB for this (yet, I'm poking at them). In the meantime just tell your dealer to check the ground for the relay that controls this funtion.
Vicki & Jon Pritchard
05 Journey 34H - CAT C7 - Toyota RAV4
3 doxies, 1 chihuahua - WIT, Escapees, FMCA