Well you mean tail lights i think and it has to either they are burnt out or a brake edal sensor is the problem and is stuck
Could be a wiring problem. Could also be loose connections, which I doubt, but hey.. anything's possible, right? I'm voting for wiring.
on the back of the car
Remove the radio and check to see that the connectors are plugged in to the back of the radio.if they are connected then it may be a bad radio.
Likely, check the fuse panel for blown fuses. if this doesnt solve the problem you likely have a short in the wiring under the dash. you also should check the bulbs for the interior lights, its also possible you have them switched to off, where they wont come on at all. check the one in the center of the vehicle to see if it has a switch, if it does make sure its set to DOOR, check the fuses and bulbs, then if these are all set and it doesnt work have a mechanic check your wiring.
Assuming you have replaced the bulbs with no joy and the fuses are good, your problem may be linked to the Neutral Start Switch on the side of the transmission. This switches on that circuit when the transmission in in reverse. Many times the contacts inside it become worn or dirty. It can be disassembled cleaned and re lubed or simply replaced. Hope this helps.
I had the same problem with my 1987 Trans Am GTA. The turn signal indicator has gone bad and needs to be replaced. That will get the brake lights working again.
Fuses blow when there is a short circuit or an over current condition.
Check the headlight switch and make sure you are getting current out of the switch when you turn on the lights.
the 1973 f body fuses are separate for park lamps and dash lamps, so it must be in the light switch itself.
blown fuses
Im gonna guess that it depends on what year it is. Mine is an 1983. The dash fuses on my particular firebird are located on the driver's side lower panel
they are on separate fuses sometimes. check fuses, or wires
bad switch?
The problem is the reverse light switch. It is located on the top of the transmission that should sloved your problem.
Start with checking the fuses.
dash panel lights working? all fuses ok?, check on the fuses box under the hood it's a number 10 red, check if keeps blowing up
A simple first step would be to check the fuses to these lights, then go from there.