You can use the accelerator pedal
key on wait 3 seconds (critical)
tap pedal 5 times 1 second intervals
wait 7 seconds (critical)
hold down pedal steady until code and hour meter alternate
lift pedal
hold down pedal until only hour meter flashes
turn off key

Or you can use an obd 2 code reader or scan tool, there is an obd 2 plug under cup holder taped to the harness, you may have to remove side cover for easier access, clear as you would any car.