Northwood Runaround Rant

I think you would be hard pressed to get schematics from any manufacturer. My Montana had a wiring error when new. Dealer had a little trouble finding where the miswire was. Afterward I asked the service manager if he could get me a copy of the wiring diagram for the 5er. He said that even he could not get one.

A wiring diagram would be what you would need. A schematic shows how it is connected electrically with no regard to actual wiring paths or routing. A wiring diagram should show actual wiring paths and point to point routing.