[ROVERNET - UK] Blown fuse

[Paul Smith]

There may be a rub-through of the insulation on the
power wire to one of the functions.  You will have to
visually trace each wire.

If you can't isolate it to something like running the wipers, then I'll bet on a rubthrough.
This happens when the grommets on sharp edges perish.  I had it happen on the wiper wiring on the P4, intermittent short.
Look for bad rubber grommets, off the top of my head I can't think of which ones.

PVS