I have a 2011 GH 930D, bought used, Oct 2018. Ordered fact operator manual for it and for deck. Soon learned that the colors given in the manual don't always match how factory built it. At least that is true in my case. I'm not aware of any color being reserved for a function, and never saw anything mentioning that. Start circuit fuse, 30 Amp has been bypassed on mine. Someone ran a 12 ga wire directly from starter switch to starter solenoid. Guess they got tired of replacing that fuse. Since you do have the schematic for yours, you might take it to local copy shop and have a copy made blueprint size. I know that really helped me when using my factory schematic to determine problems.
