What causes the reverse light not to work?

[Christian]

There are several reasons why the reverse light may not work: 1. Fuse issue: If the reverse light is not working, you can pull out the fuse to check if it is blown. 2. Reverse light bulb issue: If the filament of the reverse light bulb is broken, even if there is power, the reverse light will not illuminate. 3. Reverse light switch issue: The reverse light will only illuminate if the reverse light switch is properly engaged. You can unplug the switch connector and use a wire to bridge the switch. If the reverse light turns on, it means the switch is damaged; if it doesn't, the switch is fine.