It is provided at service.tesla.com. Wiring diagrams, service manual, etc. Sign in with your Tesla account to get the documents that match your VIN. It's free.
Not for me, after signing in and prompting for my country, takes me to a page asking for 165 dollars for a one day access, 500 for a month, or 3,000 for a year.
Edit: oops, despite what I said above, after browsing around I think I found what you're talking about? Nice! TY! This is awesome! There are wiring diagrams!
