He's talking about reading PID's, not DTC's.
Torque is a 'generic' or 'global' OBD2 program. It is limited in the amount of different PID's it will read; generally only those that are shared across all manufacturers. Again, it's the very common stuff, like coolant temp, engine speed, O2 voltage...VVT functionality is not part of it.
See:
http://en.wikipedia.org/wiki/OBD-II_PIDs
You'll note that there is a timing PID, but that's ignition, not camshaft/valve.