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No tail lights

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Well, there pretty much has to be a short somewhere, unless you've wired something else to this fuse that should not be. I don't know how to isolate the systems which are wired to this fuse. It helps to be logical / systematic. Check the trailer plug for damage... check each rear light for damage & the harness to them. It would probably be chafe damage to chaise ground. It could also be damage to the front marker / parking lts. Consider the possibility of prior accident damage that might have stressed the wiring. I'm also seeing reports of light sockets & trailer plugs corroding so as to cause grounding issues, so look inside.

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