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Re: OBD-II

To: DOUG GILL 383-4291 <DGILL@a1.stim.tec.tn.us>
Subject: Re: OBD-II
From: Josh Sirota <jss@marimba.com>
Date: Thu, 25 Mar 1999 09:53:55 -0800
Well, yes, but see this web site:
        http://www.obdii.com/connector.html

Unfortunately, different manufacturers use different protocols.

Josh

DOUG GILL 383-4291 wrote:
> 
>           I wrote:
>           >>>All OBD-II vehicles use the same connector and you cannot flash
>           >>> an OBD-II diagnostic trouble code (DTC). For example, P0300 is
>           >>> a  misfire code and the cars can't flash a "P".
>           >>>
>           >>>           Mumbles
> 
>           KeS wrote:
>           >> A)  You're wrong.  There are at least two common OBD-II
>           >> connector configurations.
> 
>           Josh wrote:
>           >They are actually all the same connector, but have different
>           > pinouts. How silly.  So much for standards.
> 
>           Well, actually, pins 2, 4, 5, and 16 are standardized.
>           Pin 2 is the ECM/PCM data.
>           Pin 4 is chassis ground.
>           Pin 5 is signal ground to the ECM/PCM.
>           Pin 16 is battery power.
> 
>           With the wide part of the connector at the top, the pins are
>           numbered L-R 1-8 and the narrow part on the bottom is numbered L-R
>           9-16.
> 
>           \ 1  2  3  4  5  6  7  8 /
>            \9 10 11 12 13 14 15 16/
> 
>           The other pins are manufacturer specific.
> 
>           Mumbles

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