Troubleshoot Trailer Wiring by Color CodeExplore further
2019-5-7u2002·u2002When you're troubleshooting the trailer wires, be sure you do it one wire at a time, starting by checking your ground wire with a circuit tester. Trailer Wiring Colors The worst that usually happens with screwy trailer wiring is a blown fuse on the tow vehicle—or something wacky, like reversed turn signals or blinking brake lights.
Get Price