The USA vehicles also have the H6W lamps in the high-beam reflectors. These do nothing to illuminate in front of the car. They just light up the high-beam lenses.

Run the lamps when the car is facing a wall, so you can see what's going on. If the high-beam H7's don't light up but the H6W's stay lit, the high-beams will not be dark, but won't throw light at the wall.

The low beam lamps run in low and high beam (unlike older USA cars). The high-beam lamps come on with the high beam. I don't know if the H6W lamps turn off with the high beam.