Ya know,
You're absolutely right about not being able to obtain those kinds of documents from GM, Ford or Chrysler. But, what you can get , with a hefty price, is a service manual for each of those mentioned I would think. And the service manuals, from the manufacturers anyway, do contain wiring schematics. I can get, again with a hefty price, a genuine Honda service manual for my 2018 Honda Goldwing Tour DCT Airbag. It runs around either $100 or $150 or so. It has a whole sub manual on electrical wiring, trouble shooting, full color wiring schematics etc. In reading some of the old posts here on the Benny forum, some have obtained wiring schematics/diagrams from Bennington. And, I'll admit, Benny has sent me one or two, just not the right one. Oh well, at this point, I remedied the problem myself and, I have a few wiring schematics that were sent my way that I might be able to use for future reference. I thank all who've contributed to this thread. Very much appreciated.
Scott