trailer light dilemma

[Tim/Jen]

trailer lights work but one side very weak?

[Jerseydave]

if you're talking about running lights, check your ground wire at the trailer tongue.

[thatsmrmastercraft]

Welcome to Team Talk. I am guessing you have a bad connection on the weak side. Look for some corrosion. Bad bulb possible if not LED.

[thatsmrmastercraft]

if you're talking about running lights, check your ground wire at the trailer tongue.

Probably not the main ground wire as the problem is just the one side. But, then again, 95% of all trailer light problems are that ground connection.