Listening to the computers does not work. Debugging electronics also requires different skillset and oftenly, expensive equipment to even talk to it. Also, manu

Listening to the computers does not work. Debugging electronics also requires different skillset and oftenly, expensive equipment to even talk to it. Also, manufacturers are increasingly locking down debugability of the cars and after market part availability via parts pairing. That's why people don't like increasing amount of electronics in cars.