BMW 2002 Series – Factory Diagnostic Plug

Have you ever seen this plug on your fender near the fuse box, and wondered what it did?  Well BMW had the best intentions to maintain the car with it.

As shown in the photos from the original 1974 era sales brochure, BMW had their own diagnostic system to read the car’s systems and conduct service.  Fortunately in today’s world you can do this with an inexpensive hand held automotive multi-tester unit.

With that in mind, here’s the diagram you want. You can use this for your own needs in diagnosing and maintaining the car.  If you’re handy with a volt meter and electronics, you have a new project!

Until further notice, we have suspended taking new registrations on the site.  We have no functions that yet support using it, but when we do we will open this back up.

Thanks… Keith

To make it easier to find all our articles on one page, I’ve added a table of contents under the Knowledgebase tab on the menu bar. This list is built dynamically each time you access the page.  Feedback welcome on this, always looking to improve our usability of the site.