i replaced the bulbs and the fuse and they still wont work. any ideas????
thanks
 
Your profile says manual. Its your reverse light switch on the tranny. There known to go bad. 
 
 
nope, pull of the front drivers side tire, its right trere, sticking out of the tranny.  its easier to get to if u pull the splash guard out.  unplug it and it just screws into the tranny   search for reverse switch for more detailed instructions
 
Im having this same problem with my z24, thank you very much..info was helpful.