Am I Supposed to See 12V at the Tail Lights?
Re our Coachmen Freedom Express 192RBS: I have a verified measurement of only 10.39V at my left rear tail light. I am producing 13.9V from my 7-pin connector on our Ridgeline at the tail light term...
Forum Discussion
Remember that the current needs to return to your vehicle through the ground connection. Run a wire to a good ground on your tow vehicle and measure the voltage using that as the ground.
