Do all trailer lights need to be grounded?
Yes, all of the lights in the # TL16RK Waterproof, Over 80 inch Trailer Light Kit will need to be grounded. The white wires on the tail lights are attached to the trailer frame, and the chrome bases provide the ground to the trailer frame through the mounting hardware for the side marker lights.
Does trailer have to be on hitch for lights to work?
Your trailer must have working taillights, brake lights and turn signals that are activated from the towing vehicle. If you have a ball-and-socket hitch, you will also need safety chains as a secondary means of attachment. This applies to all trailers except fifth-wheel trailers.
What do you mean when you say no power to your trailer plug?
You say no power for anything so I assume no turn signals or running lights. Are you testing at the plug with your test light? This is where you should start. Connect your test light to a good ground source, a clean, not rusted bolt head will work.
Are there any running lights on my trailer?
I do have a three-relay trailer power installation in a weather resistant box installed just in front of the IPDM. It contains two blue turn signal relays and one brown master, all factory installed and well marked. They are powered and work just fine in the truck and on a test bench.
Can a trailer light work except for one function?
Trailer lights work except for one function: brake, right turn, left turn, or tail. Harness wires are not connected to vehicle correctly/securely. ( Plug-In Only) A set of connectors is not seated together properly or is not making a good connection.
Why are the lights on my tow truck not working?
Check the fuse on the powered converter to ensure it is still functional. Take a look at the tow vehicle lighting fuses. Examine the wiring on the trailer side and vehicle side for in-line fuses. If the blown fuses continue, it might be the result of the circuit being overloaded. One solution is to replace the trailer lights with LEDs.