7 way Plug tester
I have a pickup truck with a 7 way plug in the bed and one in the bumper. When I have some one activate the brake control the green light for the brakes just flickers on the bumper and the one in the...
Forum Discussion
Gene&Ginny wrote:Bob Vaughn wrote:One of those wires in the 7 pin is a ground that connects the frame of the trailer to the frame of the tow vehicle. No reason to add another.
... Should I hook a ground wire from the frame of the trailer to the frame of the truck to get a good circuit ? ...
I do not have the tow vehicle hooked up to the 5th wheel.......
