Postby Oly 22 » Sat Jun 23, 2012 4:54 pm
All the electrical/electronic components are grounded to the frame, the "Body Ground Strap" ensures an overall proper ground of the vehicle. The ground straps bond the metal components together, like the exhaust system to the frame. I have not crawled under the vehicle yet but expect there will be a few of these ground straps under there.
If there was a short, the current will find it's way to ground by the ground straps. Without a proper ground system, the current will look for a different path to ground.