Troubleshooting Running Light Circuit on One Side of Trailer Not Working

Question:

Hello the right hand side number plate light, rear light and rear marker light dont work the front right hand marker light only glows dimly I am getting 1.5volts at this light and no voltage at the other right hand lights all left hand lights work fine help please.

asked by: Ian J

Expert Reply:

There has to be damage to the running light circuit that runs to the right hand side of your trailer since the left hand side is working fine currently. Inspect the wiring of this circuit starting at the trailer connector and look for obvious signs of damage like cut or exposed wire and fix as needed.

I attached a couple help articles on trailer wiring for you to check out as well.

expert reply by: Jameson C