$2,000 programs specialized to the tasks.They all do that. Some are are better than others. Now computers diagnose most problems .....each manufacturer has its own system and most independents can't afford them. So you have to send it to the dealership.
With Ski-Doo's diagnostic programs they sell for downloading to a laptop or standard computer, it's thousands of dollars, and they want your address, IP address, social security number, etc. No bullshit.
And they make these newer (computerized) sleds for everyone, including those who live in the bush, for whom getting such a machine to town when it's dead often involves lots of towing on trails for many miles or a very expensive air charter, if the thing is small enough to fit on a plane like a Cessna Caravan
When folks I know in the bush are looking for a new snowmobile, I tell them to get a later-90s, early-2000 in good shape with lower miles, like a Skandic, with a 503 fan-cooled in it and repairs you can do in-place without a several-thousand-dollar computer that isn't allowed to leave the shop that owns it.