My left rear tail light on my 2015 VW Amarok won’t work, tried bulbs, left to right, new etc, bulbs are all fine, checked fuse panel, according to web sites it’s either number 16, 17 or 18, checked them all changed all of those just to be sure. Still no left rear tail light, brake light is good, indicator light is good etc, just the actual tail light just will not function??????????