Hi Confused,
I think many users have experienced similar issues, but it would help us if you gave a little more information about your setup.
Like:
AOG version:
Hardware: PCB / homegrown / other
motor type, driver IBT_2 / Cytron
GPS position OK ?
Can you steer when using the drive tab in the Autosteer settings?
Did you enable Autosteer in the vehicle settings?
Did you connect the connector on the PCB?
Maybe you could check the following thread, a lot of troubleshooting steps are pointed out there for member Bluerabbit having a similar problem.