RoyB wrote:
My 2010 Ford F150 had a envelope in the glove box with a 12VDC FUSE and RELAY in it with no instructions. Turned out these were required to be installed in the main fuse panel on top of the radiator to provide TOW VOLTAGE when the ignition key was turned ON.
That's it. The two relay was not installed. I found them in the glove compartment (hard to believe it was in there after 15 years) I just installed it, but it requires two additional fuses. I need to go buy the fuses tomorrow and test it.
