I have just fitted my set of OEM Xenons along with a Kufatec wiring loom. Think its because I had halogens before and how the wiring loom works but my lights work as follows:
Side lights - small side light on
Dip beam - xenon lower shutter
Main beam - xenon lower & higher shutter and DRL
Main beam flash (no other lights on), only the DRL light.
On vehicles with xenons as standard with no lights on when you flash main beam which light flash - is is low xenon, high xenon or neither