Left Side Trailer Tail Lights Won't Work, Right Side Goes Out with Brakes on 2007 Chevy Silverado

Question:

When we hooked our camper up to our 2007 silverado pickup, the lights on left side wont work and the tail light on the right comes on with the driving lights but goes out when you press on the brake. Help!

asked by: Spentzer

Expert Reply:

This sounds like a ground issue. Ground problems normally show up when there is more draw on a system such as when you have the running lights on and then use another function like a turn signal or brake light.

Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. The main connector grounds should be attached to clean and corrosion free bare metal surfaces.

The light grounds should also be attached to clean and corrosion free bare metal surfaces. If there is anything between a light ground and the metal trailer frame or if the trailer has an aluminum frame, tilt bed, or folding tongue, any of these things can interrupt the ground. Running jumper wires from the light grounds to the main trailer connector ground can help.

expert reply by: Michael H