Originally Posted by kbrown1075
x2! Check your wiring at the battery! On most TT, they use white and black battery cables. In the DC world (ie automotive, marine) Black is negative (-) and red is positive (+). It seems that an electrician wires the trailer's DC as you find the AC wiring scheme, white (Neutral) and black (hot), cross that to the DC world and you have BLACK is positive (+) and WHITE is negative (-).
If you have white and black cables for battery connections, hook the up white (-) and black (+).
Let us know what you find please.
The wiring on mine was done by a color blind electrician
(or high school drop-out....nay, grammar school!!)
The Positive lead is Red (DC+) and the Negative is
White (AC neutral).....weird...
The TT has been *not* maintained well by previous owner.
The battery leads that I can reach are terribly corroded.
Well they *WERE*, but I cut off the connectors and replaced them,
soldering the wire to the connector and covering with shrink
tubing. I hD BEEN measuring about 10 ohms from negative
terminal to the frame. Yipes!!!
With new connections and cleaned up frame ground, I should
see little IR drop from battery to main panel.......once I find
that sneaky open in the + lead.....
PS Just had a flash. The break-away switch leads go under
the TT frame along with the Positive lead and the the
cable from the 7 way vehicle connector. That smells like
there MUST be a Jbox of some sort under the frame.