Try going to the library and if you are not a member, join and ask if they subscribe to Mitchels OnDemand. If they do you can find most anything you want to know. This is the same site used by mechanics all over, even dealerships. I was looking for a wiring schematic for the charging system for my 97 Bonneville and all I could find was the same everywhere and did not show the wiring I had. I went to the library and found it at Mitchels OnDemand website. You could subscribe, but the cost is several hundred dollars a year. Why pay that when the library is free.
Hope this helps.