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
Terryallan wrote:RAMwoodworks wrote:
Update: What I mean is my Tow Vehicles do not currently have power at pin 4. So while towing my TV will not charge the RV battery.
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Think y'all misunderstood , or missed this part, or it wasn't there..
But yes it would be a great thing to charge the TT while towing. Always a chance the battery could die, as the refer has to have power to run even on propane. A light could be left on, whatever. Should that happen. The refer will cut off. With the charge pin powered. The TV will power the refer. Depending on your TV. It should be an easy fix to put power to the TT charge pin.
On Fords there is a relay that must be installed to charge the trailer. not real sure about the others. The first thing I would do is find the trailer fuses in the fuse box in the TV, and check them all to see if any are missing, or blown.
Both my TVs are GMs and they just need a fuse installed. They come with a dummy fuse in the spot that powers pin 4.
I'd really like to have a look at a 12V wiring diagram for a TT. From what I understand you can jump pins 3&4 on your trailer plug to turn on running lights while on shore power. This and the breakaway switch powering the brakes means that the TT battery is not isolated from TV even if pin 4 is deactivated.
