Re: [opendiag] (unknown)

Chris

Your posting is not correct, the vaginfo protocol works even the car is not
OBDII compliant.
I've Used it for a Skoda Felicia.
And also if the VAG is OBDII it uses ISO 9141-2 and not J1850 PWM.
After ISO 9141-2 came ISO 14230 also called KWP2000 or EOBD, that's European
OBD stannderd for models produced from 2000.
For the EOBD only K-line is neccesary, so they have pins 4, 5, 7, and 16 for
their protocol, but said it could use other pins for manufacturer specific
parts.

Hope this will be of interest,

Bert

----- Original Message -----
From: "Chris Pronios" <hpro@...>
To: <opendiag@yahoogroups.com>
Sent: Monday, August 26, 2002 5:16 PM
Subject: Re: [opendiag] (unknown)

> Fabio,
>
> first check your e-mail program. You have sent to the list SEVERAL
messages with the same content.
>
> Regarding your question. All the cars after 1996 (or thereabout) have
ODB-II compatible engine management systems. This means that ALL cars
respond to the same commands, communicate with the same protocols etc.
>
> The only diffrence is that there are 3 distinct Communication protocols
supported by the OBD-II standard and a manufacturer like FIAT is free to
choose which protocol will be used on their cars.
>
> The information in the VAGINFO page is correct for any car using the J1850
PWM protocol.
>
> If FIAT is using this protocol then ALL info is OK for you. You need to
find what FIAT is using.
>
> The other 2 protocols are ISO 9141-2 and J1850 VPW. There is also a
variation of the ISO one which is the European ISO 9141.
>
> You can find which one by looking at your connector and following the
information from http://www.obdii.com/connector.html.
>
> I quote here:
>
> J1850 VPW--The connector should have metallic contacts in pins 2, 4, 5,
and 16, but not 10.
> ISO 9141-2--The connector should have metallic contacts in pins 4, 5, 7,
15, and 16.
> J1850 PWM--The connector should have metallic contacts in pins 2, 4, 5,
10, and 16.
>
> Sorry I do not have info regarding the European ISO protocol.
>
> Chris
>
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
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Received on Mon Aug 26 23:23:58 2002