Thumb throttle not responding

[Scotty]

I checked currant from the controler to the 3 pin throttle connector and it’s 4.5v. But, I can’t get any response once connected to the throttle. I replaced the throttle twice and then ran test wires bypassing the connector and still can’t get anything to happen. Could this no throttle response be a bad Controler, even if the throttle is getting juice?

 

[Osgood71]

Is your PAS level set to something higher than zero?
Just asking because a poster asked why his throttle didn't work unless pedal assist was turned on.