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BMW Coding and Programming
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  #1  
Old 01-23-2013, 02:19 PM
JEG23 JEG23 is offline
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New Code: Adjust the Sensitivity of the Automatic Headlights

Many of you have complained that the Automatic Headlamp Control seems too sensitive. Many times my headlights are on as late as 9 or 10 AM, even when the sky is bright a clear.

You can adjust the sensitivity of the control by changing a few codes. This process can be a bit complex (there seems to be other controls in place) so I suggest the following changes:


JBBF->3530 RLS, 0C->RLS_DEF_FLC_SCHWELLWERT_SATZ-> unempfindlich (default is empfindlich)

JBBF->3530 RLS, 0C->RLS_FLC_SCHWELLWERT_SATZ unempfindlich (default is empfindlich)


Just this. Not not mess with the wertes.


After many tries, it seems that the default for "non-sensitive" (unempfindlich; werte=01) works for me (ignore the Japan/China comment in the setting). The default setting for North America (and perhaps other locations) is "sensitive" (empfindlich) or werte=07, which seems to fast in turning the lights, even in fairly bright conditions. The "normal" setting is still a bit too fast (in my opinion) turning the headlights on.

The settings range from (with the default werte value next to it): non-sensitive (01), normal (03), sensitive (07) and very sensitive (0B or 11 in decimal). The wertes range from 0 to 15 (0F). That said, adjusting the wertes is not a straight forward affair. For example 00 does not seem to make it less sensitive than 01 (at least in my hands).

The suggested setting works for me, but others can tested by you. Please report successful changes so we can all learn more about these settings.

Notes-

1) It seems this change sometimes is instantaneous but in other occasions it takes a bit of time to "set". Give it at least a day after the code change to assess its effect.

2) The sensor normally takes about a minute or two to respond to a change in brightness.

3) When you are indoors (a garage or a tunnel for example), the lights always come on regardless of brightness. This is controlled by another independent setting not affected by this change.

JEG23
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Last edited by JEG23; 01-24-2013 at 08:42 AM.
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  #2  
Old 01-23-2013, 02:46 PM
cn555ic cn555ic is offline
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Awesome find. Cool
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Last edited by cn555ic; 01-25-2013 at 06:54 AM.
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  #3  
Old 01-23-2013, 10:15 PM
tankren tankren is offline
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I found these long ago, but changes make no change, no difference between each "werte".
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  #4  
Old 01-23-2013, 11:14 PM
ilhan1103 ilhan1103 is offline
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awesome, i'll try these tonight
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  #5  
Old 01-24-2013, 05:01 AM
JEG23 JEG23 is offline
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Quote:
Originally Posted by tankren View Post
I found these long ago, but changes make no change, no difference between each "werte".
tankren,

That is not the case. There is a dramatic difference between the default (sensitive) and non-sensitive (unempfindlich). The specific werte changes are complex as I mentioned. That is why I recommend just the changes above. Try it and you will see.

JEG23
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2011 550i
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Last edited by JEG23; 01-24-2013 at 08:40 AM.
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  #6  
Old 01-24-2013, 05:03 AM
JEG23 JEG23 is offline
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Quote:
Originally Posted by cn555ic View Post
You are the new innovator of coding! Keep it going as your HOT!!!
cn555ic,

Thanks

JEG23
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  #7  
Old 01-24-2013, 06:39 AM
tankren tankren is offline
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Quote:
Originally Posted by JEG23 View Post
tankren,

That is not the case. There is a dramatic difference between the default (sensitive) and non-sensitive. The specific werte changes are complex as I mention. That is why I recommend just the changes above. Try it and you will see.

JEG23
my car was built in June,2012 , the default value was "very sensitive", I got my car an update in December and the value has been changed to "not sensitive", so I think the value was the "KEY", but I can't tell why it made no change before
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  #8  
Old 01-24-2013, 07:34 AM
gicamuci gicamuci is offline
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canadian 01/2011 535ix

The default werte values I have are different and still finding them too sensitive:

JBBF->3530 RLS, 0C->RLS_DEF_FLC_SCHWELLWERT_SATZ-> empfindlich/werte=02

JBBF->3530 RLS, 0C->RLS_FLC_SCHWELLWERT_SATZ -> empfindlich/werte=02

Choices for both are:

normal/werte=01
empfindlich/werte=02
unempfindlich/werte=03
sehr_empfindlich/werte=04

I'll try unempfindlich/werte=03 and see how it goes before changing its werte to 01
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  #9  
Old 01-24-2013, 08:06 AM
JEG23 JEG23 is offline
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Quote:
Originally Posted by gicamuci View Post
canadian 01/2011 535ix

The default werte values I have are different and still finding them too sensitive:

JBBF->3530 RLS, 0C->RLS_DEF_FLC_SCHWELLWERT_SATZ-> empfindlich/werte=02

JBBF->3530 RLS, 0C->RLS_FLC_SCHWELLWERT_SATZ -> empfindlich/werte=02

Choices for both are:

normal/werte=01
empfindlich/werte=02
unempfindlich/werte=03
sehr_empfindlich/werte=04

I'll try unempfindlich/werte=03 and see how it goes before changing its werte to 01
gicamuci,

As I mentioned, the werte values are complex. Just change from empfindlich to unempfindlich and do not mess with the werte values for now. That alone will have a dramatic impact on the sensitivity of the headlight control.

I have experimented with this for weeks. If you change in RLS_DEF_FLC_SCHWELLWERT_SATZ or RLS_FLC_SCHWELLWERT_SATZ the setting and also the werte, you defeat the setting. The wertes are defined by other settings below those.

I did not want to make this over complicated and confuse everybody. As I said just change:

JBBF->3530 RLS, 0C->RLS_DEF_FLC_SCHWELLWERT_SATZ-> unempfindlich (default is empfindlich)

JBBF->3530 RLS, 0C->RLS_FLC_SCHWELLWERT_SATZ unempfindlich (default is empfindlich)


and see if you are satisfied. I think you will.

JEG23
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  #10  
Old 01-24-2013, 08:07 AM
JEG23 JEG23 is offline
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Quote:
Originally Posted by tankren View Post
my car was built in June,2012 , the default value was "very sensitive", I got my car an update in December and the value has been changed to "not sensitive", so I think the value was the "KEY", but I can't tell why it made no change before
tankren,

That is why I was surprised by your initial response. As I mentioned I have experimented with these for weeks. Changing to non-sensitive (unempfindlich) makes a world of difference.

JEG23
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2011 550i
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ZAV, ZCV, ZCW, ZDA, ZP2, 4NB, 5DF, 610, 2VH, 465, 6UK, 5DL, 6NR

Last edited by JEG23; 01-24-2013 at 08:40 AM.
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  #11  
Old 01-24-2013, 10:10 AM
Tuesday Tuesday is offline
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Can't wait until my car gets out of service to try this. Having headlights on in the middle of a bright Southern California day is superfluous.

Thanks for finding this!
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  #12  
Old 01-24-2013, 08:35 PM
snj1013 snj1013 is offline
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Quote:
Originally Posted by gicamuci View Post
canadian 01/2011 535ix

The default werte values I have are different and still finding them too sensitive:

JBBF->3530 RLS, 0C->RLS_DEF_FLC_SCHWELLWERT_SATZ-> empfindlich/werte=02

JBBF->3530 RLS, 0C->RLS_FLC_SCHWELLWERT_SATZ -> empfindlich/werte=02

Choices for both are:

normal/werte=01
empfindlich/werte=02
unempfindlich/werte=03
sehr_empfindlich/werte=04

I'll try unempfindlich/werte=03 and see how it goes before changing its werte to 01
Mine were set the same and I set the same. Haven't had a chance to drive and test yet.
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  #13  
Old 01-24-2013, 08:38 PM
JEG23 JEG23 is offline
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Quote:
Originally Posted by snj1013 View Post
Mine were set the same and I set the same. Haven't had a chance to drive and test yet.
snj1013,

Do not set the werte just set to unempfindlich.

JEG23
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  #14  
Old 01-25-2013, 07:31 AM
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DreamCar DreamCar is offline
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Jeg i think you deserve a PHD in Coding
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  #15  
Old 01-25-2013, 08:11 AM
JEG23 JEG23 is offline
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Quote:
Originally Posted by DreamCar View Post
Jeg i think you deserve a PHD in Coding
DreamCar,

That is nice of you. How many bananas before I get the PhD?

JEG23
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  #16  
Old 01-25-2013, 08:18 AM
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DreamCar DreamCar is offline
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Quote:
Originally Posted by JEG23 View Post
DreamCar,

That is nice of you. How many bananas before I get the PhD?

JEG23
You have to contact the Dean Shawn for bananas he has patented them
you can ask Sean to write a recomendation letter for you.

Jokes aside thanks for all your new findings.
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  #17  
Old 01-25-2013, 08:27 AM
JEG23 JEG23 is offline
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Quote:
Originally Posted by DreamCar View Post
You have to contact the Dean Shawn for bananas he has patented them
you can ask Sean to write a recomendation letter for you.

Jokes aside thanks for all your new findings.
I think it is more like Provost Shawn!

He is pretty stingy with the Bananas

It is fun to find new functions, but my car is going to explode at some point. I am testing so many things at the same time, that every time I hit a pothole, I think my car finally felt apart.

JEG23
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2011 550i
Space Gray /Black Nappa, Dark Wood
ZAV, ZCV, ZCW, ZDA, ZP2, 4NB, 5DF, 610, 2VH, 465, 6UK, 5DL, 6NR

Last edited by JEG23; 01-25-2013 at 08:38 AM.
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  #18  
Old 01-25-2013, 08:28 AM
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DreamCar DreamCar is offline
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Quote:
Originally Posted by JEG23 View Post
It is fun to find new functions, but car is going to explode at some point. I am testing so many things at the same time, that every time I hit a pothole, I think my car finally felt apart.

JEG23
I really envy you, i wish i had my car
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  #19  
Old 01-25-2013, 08:37 AM
snj1013 snj1013 is offline
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Quote:
Originally Posted by JEG23 View Post
snj1013,

Do not set the werte just set to unempfindlich.

JEG23
Yes, that's what I did.
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  #20  
Old 01-25-2013, 08:38 AM
JEG23 JEG23 is offline
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Quote:
Originally Posted by snj1013 View Post
Yes, that's what I did.
snj1013,

How do you like it?

JEG23
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  #21  
Old 01-25-2013, 10:57 AM
ilhan1103 ilhan1103 is offline
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I may meet up with Shawn next week if he finds the time. I'll get him drunk and make him confess on a hidden camera that you get the bananas
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  #22  
Old 01-25-2013, 11:50 AM
JEG23 JEG23 is offline
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Quote:
Originally Posted by ilhan1103 View Post
I may meet up with Shawn next week if he finds the time. I'll get him drunk and make him confess on a hidden camera that you get the bananas
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  #23  
Old 01-26-2013, 05:10 PM
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shawnsheridan shawnsheridan is offline
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Quote:
Originally Posted by JEG23 View Post
I think it is more like Provost Shawn!

He is pretty stingy with the Bananas

It is fun to find new functions, but my car is going to explode at some point. I am testing so many things at the same time, that every time I hit a pothole, I think my car finally felt apart.

JEG23
This calls for the Banana Boat Song...



Day O, day O
Daylight come and me wan' go home
Day, me say day, me say day, me say day
Me say day, me say day O
Daylight come and me wan' go home

Work all night on a drink of rum
(Daylight come and me wan' go home)
Stack banana till the mornin' come
(Daylight come and me wan' go home)

Come, Mister Tally Man, tally me banana
(Daylight come and me wan' go home)
Come, Mister Tally Man, tally me banana
(Daylight come and me wan' go home)

Lift six foot, seven foot, eight foot bunch
(Daylight come and me wan' go home)
Six foot, seven foot, eight foot bunch
(Daylight come and me wan' go home)
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- Mods - 2TB SAT / 6WB MFID Cluster / 4U1 Ceramic Controls / 6NR BMW Apps / Rear Fog Lights / Cyba Double Layer Black Chrome Quad Tips
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  #24  
Old 01-26-2013, 10:18 PM
ImSW1 ImSW1 is offline
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Quote:
Originally Posted by shawnsheridan View Post
This calls for the Banana Boat Song...

You may have exeeded the authorized post limit! I am going to consult the forum user manual and decide how to proceed from here . Being out of the country does not allow you to break the rules! That's not how we do things in the BMW Coding and Programming forum I'm also not sure singing is authorized either.

Thanks to JEG23 I've been testing this for a while. Changing the "werte" selections definitely changes the sensors behavior.

Sean

Last edited by ImSW1; 01-26-2013 at 10:20 PM.
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  #25  
Old 01-27-2013, 12:33 AM
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shawnsheridan shawnsheridan is offline
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Originally Posted by ImSW1 View Post
You may have exeeded the authorized post limit! I am going to consult the forum user manual and decide how to proceed from here . Being out of the country does not allow you to break the rules! That's not how we do things in the BMW Coding and Programming forum I'm also not sure singing is authorized either.

Thanks to JEG23 I've been testing this for a while. Changing the "werte" selections definitely changes the sensors behavior.

Sean
Day O, day O....
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- Mods - 2TB SAT / 6WB MFID Cluster / 4U1 Ceramic Controls / 6NR BMW Apps / Rear Fog Lights / Cyba Double Layer Black Chrome Quad Tips
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