Right LED tail light staying on
Here's an unusual problem that has cropped up in the past week. Can't get my right LED tail light to shut off. The trailer is not plugged into my truck. The only way I can get it off is to disconnect ...
Forum Discussion
All the grounds are common. Every one. They all ground to the frame.
I agree this is a ground problem of some kind.
It would be interesting to check the light fixture's ground to trailer ground to see if you have current. Then check the light fixture's hot to trailer ground to see if you have current. THEN check whichever one is hot for polarity, to see which way the current is flowing.
I bet you are showing reverse polarity between the trailer ground and light fixture hot.
I agree this is a ground problem of some kind.
It would be interesting to check the light fixture's ground to trailer ground to see if you have current. Then check the light fixture's hot to trailer ground to see if you have current. THEN check whichever one is hot for polarity, to see which way the current is flowing.
I bet you are showing reverse polarity between the trailer ground and light fixture hot.
