All Trailer Lights Blink with Turn Signals Engaged

Question:

When I turn on the lights they all work but turn signals dont work and when I turn all lights off and use turn signals all lights on trailer blink

asked by: George

Expert Reply:

The issue you described sounds like a ground problem as is the case for most sporadic lighting functions. In order to fix this you will first want to start with the lighting assemblies. They will either ground through a single wire or the mounting hardware. Regardless, you will want to remove either and sand down the surface before attaching. Once this is done you will then need to do the same with the trailer connectors for both the vehicle side and trailer side. Repeat the above process and sand down the surface before attaching.

If fixing the grounds does not seem to solve the issue then you will want to check the pins inside the trailer connectors as corrosion can cause the circuits to bridge one another. Let me know if the above fixes your problem or you need further troubleshooting.

expert reply by: Conner L