Which pin on a 7-way plug supplies power for the right directional signal?

The correct answer is that Pin 5, which is colored green, supplies power for the right directional signal on a 7-way plug. Understanding the function of each pin on a 7-way connector is essential for safely operating a trailer or tow vehicle configuration.

In this configuration, the green wire is specifically designated for the right turn signal or right directional light. This wiring standard is crucial for ensuring that both the towing vehicle and trailer communicate effectively, allowing for proper signaling to others on the road.

While the other pins serve different functions—such as the yellow pin for the left turn signal and pins for functions like brake lights and ground—they do not intersect with the right signal function, which is why they are not the correct answer in this context. This structured approach to wiring not only helps in troubleshooting but also ensures compliance with electrical safety standards in towable connections.