I still don't understand how you are checking these grounds.
You said,"I began to locate and clean all grounding point and check for resistance from each ground lead to body. All checked out good except for one, next to the left headlight are 3 grounding points, one which had no reading."
Reading from what? Voltmeter, ammeter, ohmmeter, power probe, etc?
I suspect an ohmmeter, but you didn't say that. If so, why are you using an ohmmeter? Plus, what do you mean they checked out good? What was the actual reading? How exactly were you hooking up the test leads?
Again, what do you mean by no reading? No reading on what gauge?
You said "So with my power probe I put 12 volts through the ground that had no reading." Again, no reading on what? An ohmmeter? First of all, you cannot use an ohmmeter on a live circuit, second of all you cannot apply 12 volts directly to a ground. I don't understand exactly what you are doing.
Auto-mechanics is a very technical thing. It gets even more technical when someone else is trying to explain what they are doing to another mechanic. When you explain something, you have to explain it fully or alot will be lost in the translation.
Then you follow up with "Also if I turn wiper switch on then the wipers come on as well when 12 volts is applied to the ground," I don't understand how or even why you would be applying 12 volts directly to a ground.