Help：Heating seat circuit diagram

[liushimincn]

Sorry, I don't speak English, I use translation software in communication, there should be a lot of non coordinated words.
I want to install a heating seat, because geographical problems, has been simple, and could not find the drawing, I hope to get your help. Thank you
The following parts have been equipped with complete.
SB24 has been out with Jane, I find that it is not how much A, tomorrow I upload photos




This is what I found the most trusted circuit.

[liushimincn]

[liushimincn]

I can't find J519 the heated seat definition