Auto-electronics. Need help with measurements for testing 🙂

Please move thread in the wrong place. First of all: I started training as an automotive mechanic at VW a month ago. I soon had a practical exam but unfortunately I didn’t really get to practice the basics of electrical engineering in the course. That’s why I hope for help. The whole exam will be carried out at a table full of electronics (blinker, diaphragm, headlights, etc.). If, for example, I want to measure the consumer voltage or voltage drop on the right turn signal, I have to plug out the turn signal on the left? The cables and plugs are respectively original ones of a VW, all cables lead either to the mass or to the relays where the light can be switched on-off. To the test questions: 1. Voltage drop lead dipped light on the left. How do I proceed and how do I measure here? 2. Consumer voltage dipped light on the left.? 3. S Do I measure dipped light on the left? How exactly and where do I measure? 4. Consumer voltage dipped light on the right? 5. Total current flow when the dipped light is switched on? Put out stand lights first? 6. Current flow dipped light on the left? Would be extremely grateful if someone could help me. Thank you for answers and nice evening Joel