5 Pin Trailer Wiring. You must check the trailer manual to see if the wiring is correct, but normally the white wire is called the ground wire Wiring your four-pin trailer can be a challenge when you first do it, but it's a simple do-it-yourself task. You rely on your trailer day in and day out whether you use it for landscaping You can also perform a continuity test.
Trailer wiring is very important to towing safety. It is easier than you think. I am using the Atlantic brittish wiring harness.
It gets complicated when you have trailers.
Having the various pinout diagrams available is vital to troubleshooting and/or repairing.
Learn all about trailer wiring at HowStuffWorks. Chances are it will be as easy as locating something with a label that reads "Seven-pin to four-pin trailer wiring adapter." Five-wire systems are the same as the four-wire system, right down to the. I am using the Atlantic brittish wiring harness.