Vida database analysis

The main focus is the CARCOM database. (since guess, here is the CAN messages get assembled or translated)

something key is the ecu-identification

As a starting point the diagnostic session was used. Looking up 31254684 AC diagnosticPartNO in T100, gave EcuvariantID = 2013.

  • it refers to T101 and from there to T102

so here I find identifier : 372302, CEM (this also is present in XML files) Suppose this is the CEM under the glove box.

  • T120 links to T121

Here if find “29” which refers to extended CANBUS ID

../_images/ecuvariant.png