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Old 01-09-2016, 06:38 AM
Moments Moments is offline
Join Date: Apr 2005
Location: England
Posts: 86
Moments is on a distinguished road
I didn't need to reset anything - the check control error cleared down and I left the lights on with a battery charger connected while putting everything back together. I'll scan the LCM later today and clear down the shadow codes, I'm assuming all is well.

There is a TSB on this which is all I can add right now:
SI B 63 07 05
April 2006
Technical Service

This Service Information bulletin supersedes S.I. B63 07 05 dated November 2005.

[NEW] designates changes to this revision

Headlight(s) are Inoperative After Parts Replacement or Coding

E46 (3 Series) with SA 522 (Xenon lights)
E53 (X5) with SA 522 (Xenon lights)
[NEW] E83 (X3) with SA522 (Xenon lights)
[NEW] E85 (Z4) with SA522 (Xenon lights)

After replacing a headlight(s) assembly, Lamp Module (LCM), Lamp Switch Center (LSZ), Stepper Motor Controller (SMC), Active Headlight Control (AHL) or coding the LCM/LSZ the headlight is inoperative.

The System has not been initialized.

The headlight has to have a calibration sweep in order for the LCM/LSZ to recognize it.

Use the following procedure to calibrate the headlights:
^ Select - Control Module Function Screen
^ Select - Active Headlight Control (AHL)
^ Select - Activate Components
^ Select - Reference run with senior
^ Select - Control module reset

Covered under the terms of the BMW New Vehicle Limited Warranty.
This looks to me to be forcibly 'reminding' the LCM of the state it should be in.
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