Horse Trailer Wiring Troubleshooting. My husband and I just rewired our older trailer today. To troubleshoot your trailer wiring, connect a jumper wire to the connector pins and the continuity tester to the system's sockets.
Many horses develop frustrating problems with loading at some point during their lives. Learn all about trailer wiring at HowStuffWorks. I cleaned both contacts but still.
After you've troubleshot the light wiring system on your trailer, you may find that you need a bit of extra support.
My husband and I just rewired our older trailer today.
The good news is fixing these problems might be easier than you think. Look for a "trailer tow", "trailer brake light" or similar relay sockets where the relays are missing. Note that although the colors and wire sizes listed herein are common, they.