Struggling locating the towing "running light fuse" in my 2017 NV 3500 van. I checked the main relay and it appears to be ok. The brake lights, flashers and turn signals all work fine. Running lights only are out. The local dealer wasn't much help over the phone. They directed to the relay only. I am thinking there is a standard fuse that is probably blown. Anyone have any experience with this? Thanks Jerry MVM