Diagnostics vehicle code

Hello, does the FMB641 have a feature to read diagnostic codes in vehicles? If so, how do I set it up and how can I access it?

Good day,

FMB641 or any professional series device FMC640, FMM640, FMC650, FMM650 has Manual CAN.

Meaning device can connect directly to CAN lines of the vehicle and read data according to configuration.
More information can be found here:

This option is more often used with Heavy vehicles (Trucks, Tractors etc.)

For DTC codes from light vehicles, LV-CAN+DTC option can be explored: