The 1993 Mazda. reverse light switch is located below the shifter column. The relay switch can be seen by removing the center console.
Above the brake pedal,its black plastic.
Switch is defective or out of adjustment.
reset it.
I suspect your hold switch on the shift lever might be bad..or ahs a broken wire.
Yes.
the reverse light switch.. aka backup light switch is located on the front of the transmission along the side screws into the transmission if standing in front of the car looking down at the transmission you can see it
did you check the reverse switch on the trans ?
Remove the high mount brake light retaining screws from your Mazda Protg. Remove the high mount brake light wiring harness. Reverse the process to install your new high-mount brake light.
Typically the light will remain on if the fluid is low, or maybe the ebrake just pulled just enough that it is on..... or the switch that is triggered by the handle is faulty
Fuse panel.
Bad ignition switch?