Schuppi ... Thanks for your response. It is one of two values that caught my eye.The other is the 25.50V at high beam and dipped beam in record number 2. I take that to mean a recording of a second attempt to initialize those functions??
I have nothing to compare what's listed to normal operational values. The amount of heat (419 degrees) might be a normal value but I don't have any normal reading to compare it to. Same with the 25.50V. Anyone care to supply those values? I would also like to determine what the abbreviation NTC stands for ... is it individual bulbs in the assembly?
If that is indeed excessive heat being generated, Hexcode has said their system has a specific code for the fan and controller issues so am I missing seeing those codes. Schuppi ... can you point me to the fault codes, in my scan, for that?
I sent my scan to Hexcode support and got a quick response. I'll share with the community the response from Hexcode support. Thanks Mornay for such a timely response :
Hi David,
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| Glad you managed to get you hands on your own GS-911!
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| After closing your ticket last week, we did a bit of deeper digging into the "LED EVG" that is seen in most of the LED fault codes. The "EVG" part is a German word that translates to LED ballast. The light ballast seems then to be the entire light enclosure, with thermal management, the bulb and power supply.
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| The LED EVG is then connected via a LINbus to the Body controller and headlights.
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| With that being said, the fault messages you are receiving does sound to me like the LINbus is at fault, either sending incorrect LIN messages to the body controller or perhaps even a physical wiring fault. The fact that you did not change anything recently lends to the idea that the communication is intermittent, causing the faults. (See specifically faults such as "No LIN message (voltage from LED-EVG) "
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| Unfortunately this is as far as our understanding of the error codes go. There might be a short somewhere causing the intermittent comms, however a BMW mechanic or a very clued-up auto electrician should be able to confirm this. I would personally start by checking the physical wiring to and from the LED assembly and then the connectors, just to be sure all wires are properly seated.
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| I hope the information can aid you to get to the bottom of the problem.
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| Kind regards,
| Mornay
I think I'll proceed as follows;
1. Run an additional scan
2. Try to find a wiring diagram specific to my bike (any and all help locating this would be greatly appreciated, I haven't found one in
my search).
3. Determine which control units are in the headlight chain. (switches, body controllers, light or LIN controllers)
4. Look at the physical state of all wiring connections to assemblies and controllers.
5. Remove connectors and try to figure out what voltages/grounds are present and if they are working correctly.
6. Remove headlight and see if I can get it to power up. Try to determine function. (This unit has worked in all functions
intermittently, even in conjunction with the driving lights when I've gotten low beam to work.)
I'm sure there will be additional work as I proceed through this. I'm going to see if Hexcode support can enlighten me regarding some of the controller/electrical information.
Everybody feel free to jump in!
Thanks again ... Dave
