We have a circa 1985 KitchenAid dishwasher and a Maytag batch disposer that may be from the same era. I had no doubt that the dishwasher turned on the disposer automatically when it was draining until the appliance installer came to our house and insisted that this isn't possible.
Is this an obsolete feature, or a kluge someone did when installing our appliances? Or am I just plain wrong? I did happen to see in this thread that the dishwasher has its own food grinder, which perhaps I have been mistaking for our disposer running?