Help decoding a CAN conversation?

[mprowe]

Hi,

Can anyone help me decode the following conversation between a Fiat Ducato (2010) and a PC?
This is a summery of the ELM327 "AT" commands (cosmetic commands have been excluded for brevity)

Code: Select all

AT H0          //Turn Headers OFF
AT PP 2CSV81   //See page 74
AT PP 2C ON    //Turn on ProgParam 2C (User1 protocol)
AT PP 2D SV 0A //0A = 10dec. 500/10=50kbps
AT PP 2D ON    //Turn on User1 baud rate
AT SPB         //Protocol "B" = User1 (11bit ID, 125kbaud)
AT CRA 7C0     //Set the CAN Rx address to 0x7C0
AT SH  7B0     //Set Header to 00 07 B0 (Same as SH xx yy zz)

.. and this is the CAN conversation I would like help with.

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//Now that the ELM327 has been setup, send the CAN commands....
                        |  Tester Sends...
Ducato replies...       |
                        |  04 02 10 81
F1 02 50 81 00000000    |
                        |  04 02 1A 97 1
F1 10 07 5A 97 40 83 46 |
                        |  04 30 FF 00
F1 20 08 E6 00000000    |
                        |  04 02 1A 91 1
F1 10 0D 5A 91 31 3336

Start loop...
                        |  04 02 21 30 1

F1 03 61 30 31 00 00 00 |  ...or
F1 03 61 30 30 00 00 00 |  

End loop

Looking forward to some tips that will allow some light on this (Fiat OBD) mistery.

Regards,