Seacrazy-
The main link to Winnebago wiring diagrams is
here. Wiring diagrams for your coach are
here, if your coach is a 36LD. There is a separate set of diagrams for a 2001 36GD.
Those diagrams show several 15-pin connectors, such as the one in your picture.
Winnebago usually marked the wires with two- or three-character circuit IDs. Do the wires on the connector have markings? Also, what are the colors?
Are there any 12V items that are not working, such as storage bay lights?