Decided to replace the lighting on my flat bed trailer (car hauler) and make the change to LEDs and rerun the wiring inside a PVC conduit. No problems with that at all, took an hour tops.
Using a four wire flat connector I grounded the ground lead to the truck and did the same on the trailer side of the connector. Sometimes I had lights, some lights, or dim lights. Fussed with the grounding of each light for a half hour and still had problems. Final solution, I ran a ground from each light back to the wiring harness connector and no more problems.
Still not certain how an all steel trailer loses ground but it was, or the grounding points did. Just an FYI: If you decide to re-wire consider running one extra wire as a ground, could save you a traffic ticket (or worse) at some point.
Using a four wire flat connector I grounded the ground lead to the truck and did the same on the trailer side of the connector. Sometimes I had lights, some lights, or dim lights. Fussed with the grounding of each light for a half hour and still had problems. Final solution, I ran a ground from each light back to the wiring harness connector and no more problems.
Still not certain how an all steel trailer loses ground but it was, or the grounding points did. Just an FYI: If you decide to re-wire consider running one extra wire as a ground, could save you a traffic ticket (or worse) at some point.
