I currently purchased a trailer with LED Left/Right lights. all light working fine if the switch turned on. But the Left/Right lights keep flashing (very tiny dark light, it still be able to see) after turn off switches or even turn off the engine and take out the key. Then I identified that the Left/Right wire remain the low voltage ( 2-3 volt ) on harness connector where LR3 (2006 year model) build in, which cause the Left/Right lights flashing all time.
Is it an electrical wire problem on LR3 ? or is the low voltage on the wire normal? Anyone know that? Please help

Thanks

 

You need to put resistors in the cable or across the turn LED's. Plenty of info on YouTube

 

It helps. I find lot of information on Youtube. Thanks