I believe that is considered the "beeper" and is located on the underside of the dash below steering wheel. Check the gauges fuse on the engine fuse block. Since the engine starts I would guess it is that or bad beeper. To replace the beeper remove the dash and swap out.
Thanks good intel. Who knows the best ways to research and cross reference part numbers. I've been one SEA DOO PARTS link at the top and been searching high and low for a reference.