With my current HID set-up in my gen 1, it throws a bulb out code when I turn on my lights. Anyone familiar with these newer CANBUS ballasts? Sounds like they are supposed to fix this problem but I don't know if it will work with our older cars.
If you are using relays you'll need to wire in the resistor to solve the bulb out message issue.
If you google hid resistor fix you will find tons of info.