Multiecuscan

You are right! Compared with an image of "Supported Vehicles" I saw the wrong side.
After correction of the jump to correct pins the ELM is connecting to ABS system.

Thank you very much for your help!!

Will this work for GM vehicles and what software would be used?

you can download a OBD access app on Google play store to check the modules that your elm327 scanner is possible to access.
https://play.google.com/store/apps/deta ... ster&hl=en