Trailer light on right side will not come on. lights are new, it has to be on the truck. How do you find the problem?
all lights are out on that side of trailer? If so double check the ground connection at that light assembly. Both lights use the same brown wire for the running/parking lights to work so if one is working and the other is not then it's either a bulb or ground issue. Also did you connect the white wire coming out of the pig tail to the frame of the trailer? If no you need to its the ground connection from your battery for those lights.
thanks for the quick answer
Hope it helps.
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