Do I need power at pin 4 on my tow vehicle?
I think y'all think I be dumb. I know I need to plug that big black rubber thing on my trailer into my truck (what else will keep the trailer from falling off the ball ;)) This year we're going to...
Forum Discussion
fallsrider wrote:
As others have said, you do not need power to pin 4. However, as you said, your Yukon simply needs a fuse installed in the right slot in the fuse block. Real easy to do, so why not? Then your battery is being maintained while driving.
Also, a battery disconnect switch is not necessary. But it sure is useful. If you are not connected to shore power at home, it will prevent parasitic draw from draining your battery. But caution, if you do install one, be sure to bypass the disconnect switch for power to your break-away brake system. You want to have that powered at all times while towing, whether the disconnect switch is on or off. If your trailer were to come disconnected while towing, and the 7-pin ripped out, there would be no break-away system if the battery disconnect was turned off and you had not bypassed it.
Good luck.
Good point on bypassing the break-away brakes. I wonder how much good these would actually do running down the road. If a trailer gets loose it's gonna nose down and spin out so is this break-away just hype or really useful.:?
