The steering wheel must be removed and yes it requires special tools. This car has a drivers airbag and I would recommend you take this to a professional for that reason. Serious injury can occur if you make a mistake.
The turn signal flasher relay is defective, replace it.
If the bulbs are good buy it just will not flash the flasher relay is defective. Replace it.
I am assuming you have replaced any defective bulb. If none of the turn signals work, replace the turn signal flasher relay.
More likely than not the Flasher Relay is defective. Replace it.
If the turn signal bulbs light but will not flash, the flasher relay is defective, replace it.
Corroded or worn socket Loose connection Bad turn signal flasher? Defective bulb?
If the turn signal lights come on but will not flash you have a defective flasher relay. Replace the relay.
Defective flasher.
It can be blown fuse, defective turn signal Flasher Relay, or blown bulbs. In rare instances it can be a defective turn signal switch.
Flasher relay is defective. Replace it. Can also be both front and rear bulbs are burnt out.
Your flasher relay is defective, replace it. See sources and related links for bulb information.
It is either a blown fuse, defective Flasher Relay, defective turn signal switch, blown bulbs, or loose or corroded bulb socket. If none of the turn signals flash, then the flasher is bad. Replace it.