The Chilton's manuals I have do not go into good detail about all the existing Bugs wiring. For example, the key switch specifics are pretty lacking / incorrect -- one page lists the "Start" wire as Blk, and another lists it as Yel/Blk. That seems incorrect. Also, no mention of the "On" wire color. And no mention of the 50 other wires exiting the steering column! So on to other resources....
Found a mention of another brand of service manual (Bently, found this one), but before buying with fingers crossed, going to look at alternatives. Â
Edit:
Jackpot!!! At first glance, looks like this will clear up everything! Clear wiring, detailed symbols, test points, and a detailed key that even includes fuse descriptions! This is awesome (assuming it's correct for my 73 super..fingers crossed)!! Found from here: https://www.thesamba.com/vw/archives/info/wiringt1.php
Before my edit above:
Found this from Jbugs.com for a 72:
Key switch Operation:
And some notes from a post here:Â https://www.thesamba.com/vw/forum/viewtopic.php?t=633701
- Looks like Red 4.0 mm is incoming power
- With the ignition switch in the ON position, two wires will be shorted and allow current flow. Likely the red (#30) and the black (#15) wire.
- The black/red (#50) wire should not be connected to anything in this position.
- Turn the key and hold it in the START position, all three wires should be connected together (red, black, black/red). This is how the red wire powers BOTH the ignition (#15) and the starter solenoid (#50).
- The grey wire is optional and may be either grounded or powered while the ignition is OFF with key IN. This would set off a door buzz
Going to put a battery in her this weekend, bust out the meter, and do some testing to at least figure out the key switch and how I'll integrate it with the Zilla controller.
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