Turn signals work on outside but not on dash?

for nothing on the dash to work ,it indicates that a ground wire is missing, broken or the ground point is rusted
Could be the BCM unit so run the fault codes as well

There is a Relay usually in the interior Fuse Panel under the Dash for the Turn signal that's where the clicking noise comes from also when your turn signals are on, I suspect you have a bad Relay or even a Fuse. Its unlikely the bulbs simultaneously went out in the Dash. So check your fuses and the Turn Signal Relay.

Check all fuses first. Then if they are not blown , check the bulbs and the wiring to the turn signals. Starting at the bulb socket and working your way back. Seems that the current is broken somewhere along the circuit.

if you check fuses to turn signal lights and hazard fuse problem could be in hazard switch or multifunction switch.

Replace the turn signal switch. They can be fixed if your up to it, but you have to disassemble the switch. there are parts that have to go back in the right order. Let me know. The longer you let this go , you will start to lose the headlights. All the outside lights run threw the turn switch.

Check turn signal fuse, if fuse is good, check turn signal flasher, this is identical to hazard flasher, I believe on the 1997 it is located under the dash near the center console. The turn signal and hazard flashers are the same part number so try switching places with them and see if the turn signals work. If turn signals work after switching them you need a flasher.

Change the flasher which is located up by fuse block under dash

check your bulbs

You loose all turn signal lights outside? Do they blink on the dash?

You need a turn signal flasher.