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From: One Stone
X-Mailer: Mozilla 4.75 [en] (Win98; U)
Subject: Re: Electronic Auto Dashboard
Organization: Chariot Internet - http://www.chariot.net.au
Date: Tue, 26 Nov 2002 19:36:07 +1030
NNTP-Posting-Date: Tue, 26 Nov 2002 20:02:52 EST
Ed Price wrote:
> "Pat Ford" wrote in message
> > most of the gm digital dashes work through the efi computers ALDL port.
> Was there ever a "transition time" for auto dashboards? (I'm at a bit of a
> personal disadvantage, since in almost 30 years, I have only owned a 74, a
> 75 and an 83 GM vehicle.) What I'm trying to ask is if there was some model
> year or time-frame when dashboards went digital but were not controlled by a
> central vehicle microprocessor?
There were some very early electronic dash attempts that preceeded
centralised engine management. Other than that all the most of it has
worked through the ECU. Why duplicate signal processing hardware and
software? The aftermarket versions usually piggyback the wiring harness
or intercept it in a junction box to extract the raw sensor data.
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