signals and four ways do not work

Hello,

Given that the fuses are good, you probably have a faulty flasher relay/fuse.
It controls the turn signal flash as well as hazard.

It is located on the left side of instrument panel under the dash.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

I have attached the location diagram as well as replacement procedure.

Please let me know if you have any questions.

Thank you.