Wiring Diagrams - Winnebago Welcome to Winnebago Industries Wiring Diagrams . Please choose a year from the menu at left to start your search.Wiring DiagramsAll files are in PDF format which requires Adobe Acrobat Reader. Copyright Ó 2009 See results only from winnebagoind Winnebago Motorhome Wiring Diagram | Free Wiring Diagram Collection of winnebago motorhome wiring diagram. A wiring diagram is a simplified standard photographic depiction of an electrical circuit. It shows the components of the circuit as simplified shapes, and also the power and signal connections between the devices.