The headlights work on a totally different relay than the parking and fog lights. The headlight relay or headlight fuse is usually blown when only the parking and fog lights work.
check the earth connection at the lamp clusters
Well if your turn signals still work its not a short. I just fixed a pinched wire on my 96 and now my turn signals dont work. But according to a buddy of mine on Clubintegra.com there is a chance the fuse for the hazards is blown.
The Switch may be bad. Check the bulbs for the parking lights. Check the fuses / relays for the parking lights.
Fuse, wiring, bulbs
If the 4 Ways/Hazards are disconnected then neither will work the park lights nor the turn signals.
Check to see if parking lights are working - usually same fuse or could be light switch itself if all fuses are good
Fuses?
Simple your tail light bulbs have fused and needs replacing
Check the fuses.
If your parking lights are on and your left brake light doesn't work, the brake may have burnt out. You might also have a wiring problem.
u need to replace light switch