Trailer Lights

[Irish Jigger]

Had the same issue with my Ram 1500. Turned out to be a bad ground when it was installed at the dealer. Brought it back and they took care of it.

[champ]

Thanks. I took the cover off and looked at the bulb. Turns out it was all corroded. As I tried to get it out the other lights went on.

Lesson learned - Don't overlook the obvious.

[Gerry Zagorski]

You might want to try some dielectric grease. A dab around the base of the bulbs where they come in contact with the bulb receptical helps reduce corrosion, especially if you are unsing the trailer in salt water. Works well on boat navigation lights too.

Glad you figured out your problem and it was a cheap fix... That's usually not the case when having anything to do with boats