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Date:         Sun, 4 May 2003 06:36:31 -0700
Reply-To:     "Loren A. Busch" <lbusch@IX.NETCOM.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         "Loren A. Busch" <lbusch@IX.NETCOM.COM>
Subject:      ADBQ
In-Reply-To:  <200305032110.19caPI2CY3NZFl40@penguin>
Content-Type: text/plain; charset="us-ascii"


Yes, Another D*** Battery Question
This question regards the use of the typical marine battery selector
switch.  These usually have four possible positions: Batt 1, Batt 2,
Both, or Off.
Off is simple: cuts ALL juice from the circuit, on startup ECU must go
through 'learning' period and clock must be reset.  But what happens
when switching between the other modes?  Are these switches 'break
before make' (as I suspect) or 'make before break'?  If the former, that
means that there will be a momentary interruption of power as the switch
is being thrown leading to the question, how long does power need to be
interrupted to cause the reset of the ECU?
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