Tail light fuse short 89 Mazda mpv?

Are your dash light off also? Is that circuit blowing fuses? If your not blowing fuses, then your turn signal/headlight switch is going bad. It cost abour $60 for a new one which is a sub unit of the column levers used to activate light/wipers/lights/headlights. Don't let them sell you the whole unit, it cost about $300.