Hi Customer. Thank you for asking your question on JustAnswer.
Is there a particular system you want the diagram for? The manual is too large to download here, but if you have specific systems then I can do those individually.
That is still pretty much the entire manual. Have you been able to isolate the draw to a specific circuit by performing a draw test? Even with a diagram it is still going to be searching for a needle in a haystack. You should be able to at least isolate it to a fuse by performing a draw test with a meter. Here is a link to directions to perform the test. Once you know the fuse number let me know and I will get you a diagram for that circuit.