Intesting that this should come up. I have been posting in the Winnebago forum asking exactly where the physical grounds are and received no useful replies.
I have found the main ground for the battery on the frame. I found another ground just behind the grill. There is another local ground by the gas heater way in the back. I also found a ground for the dash behind the dash. None of these seem beefy enough to carry return current from the coach. I have cleaned them up and re-tightened them.
Are there more grounds and, if so, where are they?
I looked at the Winnebago wiring diagrams and they treat ground as a concept rather than as a physical reality. Only one, the battery ground, makes any reference to its location.
The problem that I am trouble shooting is a voltage difference between the DVM built into the coach and another DVM at the battery. Underr high loads the difference is almost a volt. This causes my gas heater to not fire as it perceives a low voltage condition.
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2001 Winnebago Adventurer, 35U, W-20 8.1
F+R Trac bars, F+R sway bars, SafTsteer, F Sumo Springs, 4 Koni FSDs
2007 Forest River Lexington Ford E450 Chassis
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