E46Fanatics - View Single Post - Road Speed Signal Implausible?
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Old 08-01-2013, 05:13 PM   #1
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Join Date: Dec 2012
Location: New York
Posts: 47
My Ride: Now:325xi Past:325i
Road Speed Signal Implausible?

EDIT: Problem Fixed. The Bluetooth ULF module was the problem.

Used PA Soft 1.4 and I got that error (Road Speed Signal Implausible) under Digital Motor Electronics. It is in Red meaning currently faulty but I can clear it and remove it but it comes back after some time. Can anyone help me out if they have gotten this then fixed it?

More info: My Speedo and MPG do not work. I have no other lights on my dash. No ABS,BRAKE.. And I have replaced my Speed sensors. I have ran the Odometer test and all lights work and needles. Also get P0500 on OBDII Scanner which says Speed Sensor A. I have ran my car with GT1 I believe and it shows all my sensors working and they each throw out the speed when I am driving.
I am all out of solutions and have tried everything. This problem is driving me nuts for the past couple of months and no one can solve my problem. I need to get the car inspected but I have a CEL.

Last edited by Chriis325i; 08-02-2013 at 11:20 AM.
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