Its a good idea to do maintenance on your tow trailer brake and signal lights. A sure sign the need to be cleaned is if you notice they are dim or faded.
Get some sand paper and die-electric grease. Go to the connection and look for for the ground wire, usually on the side of the frame or on the bottom of a frame crossmember there will be a pretty thick wire (most likely white one) with a ring (formally a “ring lug”) attached to the end of it. That ring will be bolted to the frame. That is the main ground wire. Most other 12 volt items will have a ground wire connected to that one at same place or another.

Unbolt that ring from the frame and clean the ring, the frame where it is bolted, the bolt, washers, and even the nut (if it has one). Fine sandpaper works good. Bolt it back to the frame all nice and clean. A thin coat of die-electric grease will keep it protected. You should also check the continuity of the ground between the trailer and the TV. For that you need a multimeter, or someone with one.

Cleaning the contacts on both sides of the TV/Trailer plug/socket is a good idea, and again some die-electric grease will help prevent further corrosion.

Posted by admin in General Camping