GTP

Hi, On my 2011 Galaxy I have a periodic issue with the position and backlight in left side (note that the car is left handed steering/right side driving). The position and backlight (LED on backlight) is on/off. Info display when off state "Position Bulb failure". No message when on. All other lamps on backlight is fully functional I do have a feeling that the problem is in or around the front position light, however it also influences the backlight. And only in the same side. Any one have an idea to where to locate the issue?