All headlights are inoperative

[primem]

Hi New to bmw's but not automotive. Usually stick to fca products; I work for FCA. The wife brought home a used 2005 x5 4.4L. Now I gotta fix it.

Problem: All 4 headlights are inoperative
-xenon low beam and halogen high beams do not come on in auto or full on switch position.
-the park light do work in both switch positions
-the fog lights work
-the high beams come on for flash to pass
-check low beam message is displayed in the cluster

I've had a look at the headlight wiring diagram. Everything is fed from the headlight module. I plan to check for power and ground at the headlight connectors. If I get no power to the headlights and the wiring is intact, can I assume the headlight module is NFG?

Does the headlight module set dtcs that can be read with a scan tool?
If I need a new module...is it a dealer part only? does it need dealer programming?

Thanks

[primem]

bump

[primem]

Update:
With some help from some folks on another forum I have a diagnosis.

Turns out the high beams are daytime running lights and flash to pass only. the xenon option (xenons don't like to be switch on and off repeatedly) are the full time headlights that use shutters to switch from low and high beam.
so the "highbeam/dtrl are working normally...just no xenons.
I can hear the shutters working for both headlamp assemblies. power and grd were good at the right headlight. headlamp control module/ballast on order.