20111 Dvd2 Verified |top|: Bosch Esitronic
Bosch, as the world’s largest automotive supplier, was the architect of many of these systems. Their Esitronic software wasn't just a repair manual; it was a portal into the mind of the machine. It offered SIS (Service Information System), collision data, wiring diagrams that looked like architectural blueprints, and critical ECU pin-outs.