Why does only one side of my trailer lights work?
If the lights on one side still aren’t working, you may have a break in the wire. To test for a broken wire, check the color of the wire going to the socket and then find that wire on the connector in front. Probe inside the socket with the tester (you’ll see the color of the wire that connects to the socket inside).
Why is one of my trailer lights not working?
Many trailer problems are due to a poor grounding connection, which is usually the white wire coming out of the trailer plug. If the ground is poor, lights may work intermittently or not at all. Even if the wiring to the plug is adequate, make sure that the ground connections to the trailer frame are good.
Why do trailers ground through the ball?
Helpful Expert Reply: In some instances the trailer will try to ground itself between the hitch ball and coupler if the trailer’s own ground connection is weak or poor. The best solution is to re-establish the trailer’s own ground connection. Find the trailer’s main ground wire at the trailers electrical connection.
Why are my brake lights not connected to my trailer?
(Hard Wire Only) Vehicle has separate turn signal and brake lights, brake wire is not connected. Insufficient ground or short to ground on trailer or vehicle side. None of the trailer lights work for any functions. (Powered Converter Only) 12V power wire is not connected to vehicle battery.
Is the left brake light on my Boat working?
My left turn signal and left brake light are not working on my trailer. Everything else – both running lights, right brake, right signal, works. I’ve eliminated everything on the trailer.
Where are the brake lights and left side turn signals?
Your brake lights and turn signals for each side are on one circuit. The left side turn signal and brake light is generally the yellow wire going into your trailer connector. The first thing to do is check the fuses on your tow vehicle. Next, inspect and test the connector at the rear of your tow vehicle with a circuit tester, like # 40376.
Where is the brake light on a tow truck?
The left side turn signal and brake light is generally the yellow wire going into your trailer connector. The first thing to do is check the fuses on your tow vehicle. Next, inspect and test the connector at the rear of your tow vehicle with a circuit tester, like # 40376.