12 volt reading on power pin at trailer connector?

atlasb

When checking the pigtail connector on the T@B for the power pin with the battery switch on, should there be any reading on the volt meter?

Horigan

With the battery switch on, yes. It’s how your tow vehicle can charge your T@b battery. 

atlasb

Thanks for the comment.  That is what I thought but recently did a mod and something changed.  Just trying to make sure I did not connect to my TV and blow a fuse.   Multiple fuse boxes on it (TV) and never easy to find the right one.