Resetting timing belt light on 1HZ

Hi guys,
COOPS gave details on resetting timing belt warning light on 80 series 1HZ. I have a 100 series and I looked for the grommet on the dash beside the trip reset button but on the 100 series I could find no grommet hiding a reset button for the timing belt light.
Anyone with a simple way to reset the light after changing the timing belt? Or does it have to be done via the computer diagnostic socket?