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NE SD | Do not direct ground, those corrode almost immediately. Check all connections trailer plug take it apart corrosion is you enemy,clean all contacts, look at wire under trailer at rear, many mfg's are poor at protecting wire from road debris, is the tow vehicle grounded properly ? OTR tractor trailers need constant attention, the fight with road treatments is never ending and annoying, some will corrode off in one winter season so your new trailer may have same problems in less than a year | |
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Does my trailer need LED lights?
