Okay boys, what did he do wrong?
So on this GMC K2500HD I bought the owner had a LED back up light installed, they used those things you put on the wires and then squeeze shut with pliers and it saves you time as it is quick, anyway...
Forum Discussion
RoyB wrote:
This is a typical wiring pictorial for the 7-way trailer connector.
Most of the time the center pin is use for BACKUP lights.
Confirm this with a MULTIMETER to be sure...
Photo from GOOGLE IMAGES
also note in my case my FORD truck ignition key must be turned ON before I get any DC readings going back to the trailer connector.
Roy Ken
This is NOT correct. There is NO Orange and the yellow goes to the center pin. This may be some OEM (Ford or such) wiring, but it is NOT to RV Trailer code. Doug
