I don't have a '97 FSM but I do have a 2000 FSM. On the off chance that they may be the same, here's what it says:
The flasher is a combination unit -- serves both turn indicators and hazard warning. It isn't a normal flasher, it's in a housing shaped like and with contacts similar to a standard relay (square, not round, housing), but totally different internals.
The combination flasher is located in a wire harness connector which is secured to the diagnostics splice block bracket outboard of the steering column opening underneath the instrument panel.