This is why I travel with a multimeter. Was showing 13 volts on the battery this morning when connected to shore power at the campground. Disconnected from shore power, and got 10 volts. Plugged in the trailer, selected the active trailer, put it in drive, and then back into park. Went back to...
Would it stay on after that if you put the truck back in Park? Tomorrow when we leave for the next campground, I can test the trailer battery lead for >12.0V after connecting and driving a few feet and leaving the truck running. However the battery was reading 10v after driving for 6 hours...
Doing a cross country trip an realized we don't have 12v power on the 7 pin harness either. Truck recognizes a trailer is attached, but no power. Fuse 107 is in place and is good. Also have had the alarm go off serval times when a trailer is attached and we lock the truck. The truck says the...