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  #11  
Old 08-28-2012, 11:45 PM
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  #12  
Old 08-28-2012, 11:59 PM
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before doing the module, check the speed sensors - they "report" to the ABS module plug, and the pinout is somewhere on this forum... there are four sensors, one at each corners, each one is responsible for a certain function but all come to that plug... you will need a multimeter with the ability to test diodes, as those sensors are "hall effect" diodes... worst case scenario, you can use an OhmMeter - do you know how to test a diode with an OhmMeter? best case scenario, if you have an O-scope, and can turn a wheel - then you can see the square wave from the sensor...
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Old 08-29-2012, 12:08 AM
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Quote:
Originally Posted by TerminatorX5 View Post
before doing the module, check the speed sensors - they "report" to the ABS module plug, and the pinout is somewhere on this forum... there are four sensors, one at each corners, each one is responsible for a certain function but all come to that plug... you will need a multimeter with the ability to test diodes, as those sensors are "hall effect" diodes... worst case scenario, you can use an OhmMeter - do you know how to test a diode with an OhmMeter? best case scenario, if you have an O-scope, and can turn a wheel - then you can see the square wave from the sensor...
Don't have any of those. However, I think if a wheel speed sensor is bad I should get a warning light - unless I'm confusing it with a different sensor. Let me double-check that.
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  #14  
Old 08-29-2012, 12:42 AM
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If a wheel speed sensor was possible, it should have set a wheel speed sensor fault code.

I would try the hard reset at the battery. It is worth a try.
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  #15  
Old 08-29-2012, 09:46 AM
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I had the same fault ..5foc. Read the ecm with INPA and it was a yaw sensor that was at fault thats located under the rear cupholders. Try to use INPa and see what you get..i almost bought the abs module as well until i decided to reread the code w/ another scanner.
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  #16  
Old 08-29-2012, 09:59 AM
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Twins, is that the only error you get on the dash? Does it clear on startup, and then come back?

According to this, if it was a speed sensor, you would get the specific error.
http://www.xoutpost.com/bmw-sav-foru...ht-lit-up.html

The code really means DSC internal. I don't think you can get any more accurate than that. But JCM3 might be on to something. Same year X, so maybe.
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  #17  
Old 08-29-2012, 10:45 AM
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Originally Posted by jcm3 View Post
I had the same fault ..5foc. Read the ecm with INPA and it was a yaw sensor that was at fault thats located under the rear cupholders. Try to use INPa and see what you get..i almost bought the abs module as well until i decided to reread the code w/ another scanner.
Thanks for the feedback. That's exactly what I was fishing for - that it may be one of the external sensors. I just don't have enough experience with the GT1 and BMWs like a BMW tech to narrow/widen diagnosis like they could.

Xoutpost is so valuable.

I did think about those rotation/acceleration sensors maybe were going bad and maybe that's related to the SLS inacive message too. One of the EHC messages is "Can bus message incorrect". So, maybe the EHC knows there's a problem with DSC via that sensor.

At the same time, I saw that sensor under the console in the BMW docs and was hoping NOT to hear what you're saying because I heard the console is a bitch to remove. LOL!
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  #18  
Old 08-29-2012, 10:50 AM
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Quote:
Originally Posted by SlickGT1 View Post
Twins, is that the only error you get on the dash? Does it clear on startup, and then come back?

According to this, if it was a speed sensor, you would get the specific error.
http://www.xoutpost.com/bmw-sav-foru...ht-lit-up.html

The code really means DSC internal. I don't think you can get any more accurate than that. But JCM3 might be on to something. Same year X, so maybe.
Should have noted that the light and SLS message always come back on after shutdown.

Yeah, I'll look do some more research and try to find out more about those sensors JCM3 is talking about.

When I looked more into getting the DSC/ABS module rebuilt, the messages were more ABS related. They would get the ABS light or a related ABS fault - I have none of those. So ....
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  #19  
Old 08-29-2012, 11:01 AM
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First thing I though when I saw this was the shitty plastic gear in the Transfer Case actuator. But I got way more lights, and the self level error. Flipped the gear, been fine since.
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  #20  
Old 08-29-2012, 11:09 AM
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Quote:
Originally Posted by SlickGT1 View Post
First thing I though when I saw this was the shitty plastic gear in the Transfer Case actuator. But I got way more lights, and the self level error. Flipped the gear, been fine since.
Dennis, that thread did come across my mind and I went through it. I think sooner or later I will be doing something about that too.

For now, rotational sensor and/or DSC/ABS module are front runners.
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