The Bentley manual has wiring diagrams, and everything else about your vanagon, in great detail. If you go around the web asking for a wiring diagram, everyone will just tell you to buy a Bentley. If you ask for help with a wiring problem, they will ask you if you checked the Bentley, and if you don't have one, why not?
I'm not selling them or anything :). Just Google for Benley manual or Bentley service manual and "Vanagon" and you will find them. They are not cheap, but at least you get a very thorough explanation of the correct diagnostic and repair procedures for many, many things on your nearly-a-quarter-century-old vehicle.
Volkswagen Vanagon Official Factory Repair Manual Bently Publishers.com
Autozone
veryuseful.com/mustang/tech
on line
the only wiring diagram i have found on line for free so far is at autozone.com
The Nissan shop manual has a complete wiring diagram, they can be found on e-bay.
A wiring diagram can be found as a print out from an automotive store. A person can also get it from the cars maintenance manual.
In a wiring diagram or owners manual. Both can be gotten from MOTORLIT.COM
You can find a wiring diagram in HAYNES JEEP CJ AUTOMOTIVE REPAIR MANUAL. This manual covers 1949 thru 1986 - all models.
http://www.hondaspree.net/phpBB2/viewtopic.php?t=37
Find the leak and fix it.
Where can you find a wiring diagram for a 1994 F-350?