RE: [DML] Starter circuit theory?

["John Hervey" <john@xxxxxxxxxxxxxxxx>]

Dave, By reading the existing diagram, The main relay and the aux relay are
both activated by the key switch. At that point the power terminal terminal
#30 is coming from the brown wires off the back of the
alternator/solenoid/battery. Then when the relay's close the power is going
to #1 fuse instead of coming from #1 Fuse. #1 from the diagram is feeding
power to the ECU's via the green wire and other components. M:18:02 is a
little mis leading because they aren't consistent in the electrical drawings
of the position or power terminal input of the main & aux relay's.
The ignition switch is only activating the main relay and the aux relay not
carrying the current load.
The 105 ( Start Inhibit ) relay is getting is however getting the power from
the heavy brown wires from the alt to the ign switch to activate the starter
solenoid.
John Hervey



-----Original Message-----
From: Dave Swingle [mailto:swingle@xxxxxxxxxxx]
Sent: Monday, February 09, 2004 12:10 PM
To: dmcnews@xxxxxxxxxxxxxxx
Subject: Re: [DML] Starter circuit theory?


This is kind of a frankenstein car - the one I'm rebuilding from a
burned car and a wreck. The entire electrical system - wiring harness
and all, is out of the wrecked car, and I'm not really sure of the
vintage of that one but I think its about 10/81. I think you are
right - there is something "undocumented" in the wiring. At this
point it's a non-issue but I would really like to understand it. I'll
dive back into it with a voltmeter when I get a chance - an about a
week. This also seems like the kind of thing where someone may have
hacked the wiring to install a security system.

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