Do you know how/where to turn your water pump on? That’s all you really need for camping—the tank levels and battery charge status are nice to have but not a must. 

7 hours ago, MaineJed said:

Would there even be one on a 80? I’d look underneath at the holding tanks and see if there’s any indication that a indicator is in the tank 1st. If there is then chase the wires into the coach

I have looked everywhere.  I think it's too old.  

Thank you!