Turn signals don't work and it's not the fuse?

These are just ideas, but In my simple attempt....start with checking, or have someone check every fuse in the fuse box. Another thought is that the turn signal indicator arm that controls blinkers, high beams has finally gave out. And when it did, it might have shorted out the horn. Being a 1993, it has probably seen some usage. Does the cigarette lighter work?? Also check the fuse in the fuse box that controls the horn, because in some of my experiences, the cigarette lighter and the horn are sometimes on the same fuse.

posable bad turn switch. something poped fuse

blown bulb

first of all check and confirm whether in the fuse box separates the left from right side and see for blown fuse. or check for any disconnection on the rear light

my 91 Montero did the same thing, I finally traced it to a bad rocker switch for hazard lights. The switch was broken and it messed up brakes and turn signals. Check your switches that they work and rock properly. My hazard switch was binding turning on and off causing a short. Got a new hazard switch that worked freely and suddenly everything worked right. The problem drove me crazy, and I did replace the turn signal lever assembly first, brake switch, turn signal relay. I found dash switches on eBay.

Dash board or gages

I would guess lose connections or blown fuse

if your hazzards flash, that means your bulbs will be good but, your turn signal fuse is blown. you should check that first, & don't forget to turn off your hazzards before you can see if your turn signals work again. give it a try.

might be an inline fuse

check both fuse boxes,, One is under the dash inside the van, the other is under the hood,,