Re: Can't read fault codes on 2003 Vivaro diesel

Hi Grant,

This Vivaro van is a "rebadged" Renault, in terms of diagnostic.
I'm really not suprised, that you have some difficulties...
What program did you use?
What is the engine controller unit? Or the engine code?
EDC15Cxx, or EDC16Cxx?

Please try the following:

Init comms with the following sequence:

81,7A,F1,81,6D

The ecu should reply something, like this:

83,F1,7A,C1,D0,8F,0E, where

the D0, and 8F bytes are the keyword bytes (KWP-2000 protocol)

Then, you can try to get information about the system, with the
following command:

82,7A,F1,21,80,8E,

The reply will be something like this :

9A,F1,7A,61,80,82,00,38,95,19,19,30,33,37,82,00,35,51,71,00,CB,12,00,83,09,7C,03,BA,12,2E,

where 8200389519 will be the part number of your engine ecu.

This ecu should support the following command: (Testerpresent)

81,7A,F1,3E,2A, and the reply will be similar with this:

81,F1,7A,7E,6A,

Read fault codes:

83,7A,F1,17,FF,00,04, and the reply will be:

82,F1,7A,57,00,44, (I'm glad, there are no fault codes!)

And finaly, to close down the comms, you have to send :

81,7A,F1,82,6E, and the reply will be:

81,F1,7A,C2,AE,

Hope this helps you a bit.

Best regards,

Steve

--- In opendiag@yahoogroups.com, "gneobd" <gnorman@...> wrote:
>
> Hi all,
>
> I am struggling to communicate with a Vauxhall/Opel Vivaro van. It is a
> diesel 2003 1.9L DCI model.
>
> I can initiate communications on address 7A but everything I send
> afterwards gets a 7F..11 response. Does anyone know how to read fault
> codes on this model?
>
> Thanks in advance.
>
> Grant.
>

 
Received on Sat Feb 17 06:09:15 2007