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Old 08-01-2013, 06:26 PM   #9
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Join Date: Dec 2012
Location: New York
Posts: 47
My Ride: Now:325xi Past:325i
Road Speed Signal Implausible?

Originally Posted by Zell View Post
Hmmmmm.............well this is pretty odd. I'm starting to think it's going to be something hardware-related that the software itself will not be able to exactly detect. We know it's gotta be somewhere in the following:

- Wheel Speed Sensors
- Wiring from wheel speed sensors to DSC module
- DSC module itself
- DSC module to DME
- DME to instrument cluster
- The instrument cluster itself

We can rule out the wheel speed sensors and wiring to the DSC module because you could see the specific wheel speeds measured.

We know the DSC module is supposed to be working because it is able to receive that information and display it to your computer, which must be passed through the DME because it is done through OBD2.

But the DME is saying it's not getting the signal.

I wonder if it has to do with the DME.
Yea, this is a nightmare because I've searched and no one has had the same problem. My last option would be a BMW dealer. :'(

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