At 09:07 PM 5/14/2011, Poppie Jagersand wrote:
>expected that if I test continuity between the D+ and ground when
>the motor off and alt unplugged it would be near 0 Ohm. After all
>the D+ wire is supposed to energize the field coil. However my
>continuity tester shows open circuit using either regulators, so
>there's maybe something less obvious going on, like a min voltage
>needed to trigger the regulator. Martin --- On Sat, 5/14/11, David
>Beierl <dbeierl@ATTGLOBAL.NET> wrote: > From: David Beierl
><dbeierl@ATTGLOBAL.NET> > Subject: Re: Voltage at alternator

Try the diode-check mode of your meter, both polarities.  If there's
a single silicon junction (or maybe two) to ground that should show a
reading, about .6-7V per junction.

d