Some running lights working on 2006 Springdale, Keystone

[GypsyHeart]

We have a 2006 Springdale, Keystone and we are having a pronlem with the marker ligjts. Almost all the running lights work, except for the ones on the right back side of the trailer. The blinkers and brake lights all work. We have checked the 7 pin on the truck side and trailer side, all seems well. We even replaced bulbs. Still nothing. Is there another fuse box we can check? The one inside the trailer does not have anything in it for the outside signal lights. Seems strange that some of the running lights work but not all. Are they wired on seperate harnesses?Any suggestions will be appreciated. We are newbies so we are still learning.

[theeyres]

Sometimes the contacts in the sockets get very corroded. Make sure the power is off and remove the bulbs in question and scrape the contacts in the socket with a knife to clean them.

[GypsyHeart]

Thanks. Will give that a try.😃

[cabinfever]

You could also check the fuse box in the truck. There are fuses for trailer lights there also.

[hankpage]

If only a few lights are not working it is not a fuse. As mentioned check for corrosion or bad ground.