National Instruments CAN 372139B-01 - Manual (Page 216)

Chapter 6 Automotive Diagnostic Command Set API for C
Automotive Diagnostic Command Set User Manual 6-52 ni.com
Description
This function requests identification data from the ECU. mode identifies the type of
identification data requested. The ECU returns identification data that dataOut can access.
The dataOut format and definition are vehicle manufacturer specific.
For further details about this service, refer to the ISO 14230-3 standard.