Quote:
Originally Posted by fwayfarer
Well looks like I'm wrong on the bulb I guess. That's a very, very stupid way to wire it if that is the case. A true parallel circuit wouldn't care if the bulb existed at all, let alone was blown out.
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No, actually I think you might be right as a 'parallel' circuit is achieved with the shunt resistor across the bulb (#18 in diagram). If the bulb goes, current can still flow via the resistor, albeit the CCT resistance has increased. But, as I mentioned above, both the bulb and resistor would have to fail for the alternator not to charge.
See diagram:
What I find unusual is looping the CCT throught the alarm - not sure why they did that, anyone know?