Quoted from topkat:
I don’t know how to go about fixing this since the wires are different colors than the manual. A photo would help
If your wires are different than the manual, I would imagine a photo of someone else's game (which should be like the manual) will not help.
It's a little tedious but you can do it yourself for sure.
Disconnect the connector (i.e. J121)
Start at pin #1. Note the wire color.
Go to the manual, confirm the wire color is same or different (you should make some notes for the next owner).
Then in the manual find where that wire is supposed to go... validate the wire you see is indeed at that location.
Now disconnect the other connector.
Get out your DMM... use the continuity tester option to validate that you have that wire isolated.
Then move to the next pin.
I guarantee, after you do the first pin you will feel exhilarated for figuring this out yourself. You'll blast through the other pins in no time and you will learn a LOT about your game.
Good luck and don't give up.