You can open this config page:
To have the motor to move you must have the compas green (purple in my picture)
If you check the PWM value (in the red rectangle) it should be greater than 0 if autosteer is active.
If there is a value > 0 and the motor is not moving, most likely you have a hardware problem.
It should, check PWM there too:
I guess tractor at bottom left must be green
