At POG X Bill Jensen of Prevost did a presentation of the Prevost web site and demonstrated how much information is available to us. If you get a chance book mark this site and spend some time learning all it offers

http://prevostparts.volvo.com/techni.../en/wiring.asp

This is like the pot of gold at the end of the rainbow because you can access a service manual for your coach, wiring diagrams, pneumatic diagrams, and even technical publications relating to various components not produced by Prevost such as brake calipers and alternators.

It takes a little practice to be able to quickly navigate the page to access the information you require but once you have learned how to enter your coach information you can quickly pull up almost any information you need. If you want and are patient and have a good printer and a lot of paper you can literally print your entire maintenance manual, all electrical and pneumatic diagrams and any other information you might wish to have in hard copy.

This is the next best thing to having Prevost on speed dial.