No Left Turn Signal on Light

Question:

1989 Colman tent trailer has four wires on left rear fixture, the new LED fixture has three. The right side works perfectly. The left has no turn signal.

asked by: Jack

Expert Reply:

Thank you for your purchase directly from etrailer of your trailer light. If you have no left turn signal the first thing to do is make sure your ground good as that is the issue with the vast majority of trailer lighting problems.

Then you will want to check your trailer connectors for corrosion, which can be green or white in color. A build-up of corrosion can interfere with the signals getting through the connectors so if it is present you are going to need to replace the trailer plug with part # 18004.

expert reply by: Kyle S