What device on the trailer will not function if the electrical connection to the towing vehicle is missing or interrupted?

The selected combination of answers is correct because both the electronic braking system (EBS) and the lighting system on a trailer rely on an electrical connection to the towing vehicle.

If this connection is missing or interrupted, the EBS will not function, which is crucial for safe braking performance, as it controls the braking force electronically. Similarly, the lighting system, which includes brake lights, turn signals, and other essential lights, also requires electrical power from the towing vehicle to operate effectively.

In Germany, traffic regulations emphasize the importance of these systems for vehicle safety. Proper function of braking and lighting is vital for preventing accidents and ensuring visibility on the road. Understanding how these systems work and their interdependence supports responsible towing practices.