Troubleshooting Rear Clearance Lights of Trailer that Stopped Working

Updated 04/10/2024 | Published 04/11/2024

Question:

I bought a 1985 aljo alliance light. My front running lights work. My left, right, brake and reverse also work. My problem is All my back running lights don’t work. These include 2 side yellow and all back red lights. I can’t figure out what the problem is. Please help

asked by: J. A

Expert Reply:

Hey Jaret, most likely all of the lights that aren't working are carried by a single wire that runs to the back of the trailer so that would indicate to me that the problem is that wire is damaged somewhere between the connector and the lights. So you'd need to trace this circuit to find and fix the problem.

expert reply by: Jameson C