I don't know that there is a formal process on the commercial application. Key on, 3 slow full pumps of the throttle, key-off would be my first thought. I checked the the electronics manual on quickserve, it doesn't show anything either
I don't know "for certain" but I don't think I've seen a 24v VP engine that didn't have the TPS mounted right on the side of it. even the industrial we have in a forklift at work has it on the side of the engine.