Why do the reverse lights not work on a 1997 Toyota Tercel?

Answer 1

There is a switch called the reverse backup light switch attached to the shifter. When you move the shifter into reverse, the switch is closed and current goes back to the reverse lights. The switch is located on both auto and manual trans. After making sure your bulbs are good, that is where I would look. And make sure your fuses are not blown as well in your fuse block. There usually is not just a circuit dedicated to reverse lights only but there is always something a manufacturer will do some years just to be different.