Hello, wanted to turn on the parking light on the left in a confusing place. 1. Problem: I had to use the cell phone lamp to find the correct switch position. Is there no lighting in the switch or is it broken and you can change the bulb? 2. The front of the lamp turned on normally, at the back the lamp only glimmered, which initially also on the right side, after several switching attempts went left nothing at all. With standing light all 4 went normal. Battery i It can’t be because of that. Does anyone have an idea LG Benno