In Reply to: lack of "self-leveling system" on aftermarket HID posted by JIMMY on July 03, 2000 at 13:56:50:
Please do not confuse the issue by making a technical statement that is not correct.
The "low beam fault message" has nothing to do with the "self leveling system".
I am not surprised that dealers do not know how to correct this issue when someone shows up with aftermarket lamps.
The LCM is set to look for a specific resistance in the circuits to the various lamps. If the resistance is outside the speck range, then you will get a message fault.
And many of the lamps are monitored in both their hot (ON) and cold (OFF) state. So you might get a failure message in one condition and not the other.
Dealers do not know how to compensate for an aftermarket installation that is not within the speck range. And I would not expect them to try and do so.
On top of that I think the later hardware versions of the LCM (and associated software) may have a slightly greater resistance range - so may accept some lamps that would fail in previous versions. (I am not sure of this but there have been several reports to that affect).