Why does the Nissan Sylphy have only one reversing light on?

[Wood]

Nissan Sylphy has only one reversing light on, which is a common design in most vehicles nowadays to comply with national standards and save costs. Reversing light: When the car is put into reverse gear, the reversing light switch activates the reversing light circuit, illuminating the white reversing light at the rear of the car to warn vehicles and pedestrians behind, while also serving as illumination. Some vehicles are also equipped with a reversing buzzer or voice warning device, which emits an audible signal while reversing to indicate the car is in reverse. How the reversing light works: The reversing light switch operates as a normally open switch (normally disconnected). When the reverse gear is engaged, the mechanical mechanism presses down the switch contacts, closing the circuit, which turns on the reversing light and activates the reverse gear warning sound. When the reverse gear is disengaged, the switch contacts spring back, and the reversing light circuit returns to the open state.