hey

the stop light in my fiat bravo not working
not left not right and not the middle

what can be the problem?

it can be fuse?

fuse or switch depress the brake pedal with something and check for a supply voltage at the back, if you have 12v then check the bulbs, if you don't have any voltage check the fuse then the switch

where is the switch depress?

some where in the brake pedal?

how its looks?

looks like a white plunger switch should be on top of the pedal/pedal box.

fuses are in the fuse box follow the guide on the lid.