The problem is the reverse light switch. It is located on the top of the transmission that should sloved your problem.
They are called mini blade fuses Fat Pete
Check your fuses
Try Replacing turn signal flasher
To fix the no reversing lights on a 1997 Hyundai Excel Sprint, first check the bulbs to ensure they are functioning properly. If the bulbs are good, inspect the reverse light switch, typically located on the transmission, for any issues or disconnections. Additionally, examine the wiring and fuses related to the reverse lights for any damage or blown fuses. If these steps don't resolve the issue, consider consulting a mechanic for further diagnosis.
have you checked the bulbs and fuses
check for blown fuses
Try bypassing the reverse light switch that plugs into the transmission. If your reverse lights come on, voila! Problem solved. Buy a new switch.
the reverse light switch is either out of adjustment. or broken. new one should be fairly cheap
check bulbs, fuses & reverse switch
I have 2000 accent, my fuse box is to the left of your feet as you sit in the drivers seat, on the side panel. There should be a small door. Hope this helps you out.
Check the diodes in the fuse box under hood and in the box in interior on the driver's side. The are black and look like mini fuses. Littelfuse makes them and they are also available from dealers. It's common they lose their resistance.
I'd check all the fuses