I found this Van Hool information very informative and to be a handy instruction for general coach wiring, terms and functionality. I think it will help some of you, if you're like me when it comes to mastering 12v DC electrical. Let me know what you think or you may want add to this thread for helping others out?
Note: This video starts out explaining some basics pertaining to this Van Hool electrical manual. This first minute or two of information may not seem like it pertains to your coach, but the idea here is understanding your coach electrical diagram and understanding wires and circuits better. Also, you can choose the full screen symbol and explode the view.
[video=youtube;U16alVCoFdU]