One of the more complex wiring aspects of the GTV6 is the flasher circuit. The flasher can power the lights even when the L/R column swith does not...and vice versa.
This is because the flasher circuit uses a common split circuit.
Out of the Flasher relay, the wiring splits going to the column switch AND the hazard switch.
From the Hazard switch the wiring continues to a common connector for the column switch L/R turn signal wires.
Either the hazard switch or the column switch can power the signal lights, and you can use a turn signal and the hazards at the same time because the original power source (the flasher relay) will supply the same single power source.
So what does this mean: you can have a bad hazard switch and good turn signals, and vv, you can have bad turn signal switch and the hazards work! So you may have a bad column switch or column connection.
Each side has its own color marking on the wires, and maybe striped for front vs rear...don't remember.