You might check your library to see if they carry the Shop Service Manuals in their reference section. Two of our local libraries do...they will usually tell you where to look for your flasher unit.
If your signal comes on, but doesn't flash...that almost always is due to a burned out light bulb. A standard duty turn signal flasher unit (which is usually yellow plastic, rather than silver metal, but still cylindrical) is going to indicate a burned out bulb by not flashing, but being on steady. If you happen to have a burned out bulb and replace the flasher with a heavy duty flasher (which is what the hazard flashers must use), then your signals will flash again, but you will also still have a burned out bulb.
Turn on your flashers, you should have one bulb on each side in the front flashing, plus two bulbs on each side in the rear flashing. If any one of them are out, it will cause the standard duty flasher to stay on steady when you use the turn signal for that side, but your heavy duty hazard flasher unit will not stop flashing. If your flashers are flashing all six lights, then it truly is your flasher unit.
Hope this helps.
