Ok so while towing the new TT i get a low voltage warning on my break controller. I assume that means not enough voltage to the trailor to activate the breaks, so no breaks. I know i need to test this. So , i figure test the voltage coming out of the 7 pin conecter first , to see if it has voltage? That way i can limit my problum to the TV or the TT. my question is, what voltage should ot be at? Around 12 volts at higest gain? Then , i guess i need to check the ground on the trailor. I have no clue where that would be. Any help , advice or name calling is appreciated! Thanks.