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Trailer Marker Lights Do Not Illuminate on the Fender Of Hallmark Trailer

Question:

marker lights out on rear side and fender, hallmark trailer, tried good light in fender dont work

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Expert Reply:

I would begin by making sure each marker light has a good ground connection to a clean metal surface. Each light should be grounded to a rust-free, metal surface. If the ground is achieved through the metal base of the light, there may be corrosion or rust that has formed which is causing a bad ground.

I would also recommend checking the power supply to the lights, you can do so with a circuit tester like part # PTW2993. You will want to inspect the wiring making sure there is not a short or exposed wiring.

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