Even though a 1970s Volkswagen is pretty late in the game as far as old Volkswagens go (the first model year was 1938) it was still early for the industry and gave VW mechanics a leg up on troubleshooting. From there they could tell if lights were burned out, some information on the ignition system, and (for fuel injected cars) some information on the fuel delivery system. (Here’s on in evidence in the author’s Beetle.) The proprietary test port that was installed in these cars gave the mechanics easy access to the electrical system via a “small” computer that could test a number of different aspects of the car. The first of these systems came online in the late 60s on some Volkswagens. That’s partially why the first mass-produced vehicle diagnostics systems had almost nothing to do with emissions and focused mostly on helping mechanics identify common problems. It was only a matter of time before someone hacked together a way to make the troubleshooting process easier. This can be especially troublesome on electrical problems because of their invisible nature.
In the beginning, the only way to diagnose a problem with a car was to investigate unusual noises, poor performance issues, or other problems directly. Eventually they would settle on the OBD system that we have today.įirst, though, we should go back in time to see what led to this sea change in the automotive industry. And, as one would guess, every car company had their own standard for managing and monitoring these computer systems. Cars began to carry rudimentary computer systems to manage and control the influx of valves, meters, and sensors that became the new norm. Most companies began switching from carburetors to efficient fuel injection systems, but even that wouldn’t be enough for the new standards. In the 1970s, vehicles (in some western countries, at least) were subject to ever-increasing restrictions on emissions. Whatever you did, though, it’s likely that one major event passed you by without a thought: The standardization of on-board vehicle diagnostics (in the US), otherwise known as OBD-II.
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You might have spent the year glued to the TV playing Super Mario 64, or perhaps you were busy campaigning for Bill Clinton or Bob Dole, or maybe you were so depressed that Princess Diana and Prince Charles divorced that you spent the whole year locked in your room, a prisoner of your own existential nihilism. The 90s were a pivotal time in world history, and 1996 was no different.
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