Help decoding a CAN conversation?
Posted: 29 Feb 2020, 19:49
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)
.. and this is the CAN conversation I would like help with.
Looking forward to some tips that will allow some light on this (Fiat OBD) mistery.
Regards,
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)Code: Select all
//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 loopLooking forward to some tips that will allow some light on this (Fiat OBD) mistery.
Regards,