By fuse allocation, are you speaking of a listing of what each fuse feeds like one for the monitor or gauges specifically? We do not often see each item broken out that way but more often get something more generic like "monitor" or "ACC" without setting it out as the probes alone. We don't get as much indepth info on the newer rV as we do on older and that does make it harder to look deep for trouble. With the currently available info, I'm not able to even spot the holding tank wiring at all, other than a listing in the parts catalog and that doesn't show the location, but just a listing PDF style.
As a desperate act, I have heard of the monitor plug coming loose off the back of the monitor, so a pure guess at the problem might be that some plug is "half-loose" there??? I have also seen a set of diodes in tank gauge wiring on other older models and those might be prone to needing checked? No info on where they would be, either.
Maybe a check to see how the lights work if you have the tanks filled more?
Really have no good ideas, though!!
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Richard
Why no RV year, make and floorplan on MY signature as we suggest for others?
I currently DO NOT have one!
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