17prospective buyer

http://www.google.ca/url?sa=t&rct=j&...57700187,d.aWM

Very cool, i had no idea the DIN standards are why European cars use weird wiring diagrams, and why everything is derived from German.

linderpat

Great find. Now I kn ow what "DIN" means. Also, our own Alan has put together an impressive compendium of wiring diagram interpretations specific for our cars.

Ducman82

Very good find

Alan

Here you go - more information on the later wiring diagrams, mainly S4 & later, but very applicable to 84-86 diagrams, and still somewhat applicable to even earlier cars.

Download the Wiring Diagram Primer

However if you do download - you are agreeing that it is copyrighted material with restrictions:

The whole unaltered document may be redistributed by email, download or other methods for purely non-commercial uses providing these same terms are applied to all those it may be distributed to - that the document is not modified in any way, that copyright notices are retained and that it not be combined directly with or into any other document(s) except with the written permission of the copyright holder(s).

Exception: individual portions of the document may be posted or emailed (without other modification) providing the following statement is also posted with them:

This is an excerpt of Porsche 928 Electrics - Wiring Diagram Primer ©Copyright Alan C. Moore
- See www.928-Electrics.com for more info, the full Wiring Diagram Primer & Porsche 928-Electrics documents

Alan

Eplebnista

Thanks for both resources. After years of looking at US style schematic diagrams, the Porsche and VW wiring diagrams just made my head hurt so bad I gave up...

17prospective buyer

I've read that wiring diagram primer before Allan, it was very useful. I still find that tracing through the DIN wiring diagrams can be hard and tremendously complicated, especially when a wire just terminates in a box with a letter in it (eg. 57b).

There's a Bosch electrical course i might be going to in April in Toronto. It's only $299 for the three day sessions, 8-5 each day. It's just basics which i've already tooken in college, but for me repetition is needed for stuff like electrical.

depami

I say go for it. Especially if you can get your employer to pay.

And by the way, this is awsome!

Alan

I'm surprised you say that - I thought the early DIN diagrams were relatively easy to follow - at least wrt the electrical connectivity of specific functional systems and the CE elements of those. Great for debug.

They do a poor job of showing actual physical details - what is common with what, how looms are routed, connectivity across CE, wiring sizes, module placement, shared connectors, overall structure of the power system etc - but thats just inherent in the data chosen to be displayed.

This is of course an overall limitation but its also a boon to the readability of individual functions - rather helpful for debugging I think...

BTW later year diagrams (by a few years) usually changed very little - e.g. for an '83 - most things didn't change between it and an '84 - but the wiring diagrams in '84 switched from current flow to the first full sheet schematic types. For most functions you can look at either one (verify).

I never even considered doing an explanation of the current flow (DIN) diagrams - It didn't seem to be needed? Are there particular things you found missing or difficult to follow/particularly non-intuitive?

There are books on the DIN standard also - a bit dry but technically relevant: "DIN Standards for Electrical Engineering: Graphical Symbols and Wiring Diagrams" or dig out the actual DIN terminal numbering spec "DIN 72552" - takes dry to a new level...

Practically you may find something like this to be the most useful: How to Read a VW Wiring Diagram VW diagrams look a lot like early Porsche Current Flow diagrams...

Alan

69gaugeman

Audi / VW still use the diagrams like the early Porsche ones. They are so easy to use. Why did Porsche change?

Alan

See my previous reply... Personally - although it is harder work - I prefer the schematics - they are much (much) more complete - there is a huge amount more data contained in them. However for individual system functionality you do have to track down connectivity across pages pretty much for anything... so its a trade off.

Alan