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Fault Code 000091 SMG: Evaluation, roadspeed, rear left - Wheel Speed sensor?

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    Fault Code 000091 SMG: Evaluation, roadspeed, rear left - Wheel Speed sensor?

    I recently had my SMG cog light, abs light, and DSC light turn on while driving. Car runs and drives great no issues. I plugged in ISTA and I got the following code - Fault Code 000091 SMG: Evaluation, roadspeed, rear left.


    Anyone ever had this happen or dealt with this? Is this a wheel speed sensor issue?

    #2
    Originally posted by bmw m3 s50 View Post
    I recently had my SMG cog light, abs light, and DSC light turn on while driving. Car runs and drives great no issues. I plugged in ISTA and I got the following code - Fault Code 000091 SMG: Evaluation, roadspeed, rear left.


    Anyone ever had this happen or dealt with this? Is this a wheel speed sensor issue?
    Did you also scan the DSC unit for codes? Wheel speed sensor issue should also have code in DSC.

    Can also try logging wheel speeds to see if they are off.

    Comment


      #3
      Originally posted by eacmen View Post

      Did you also scan the DSC unit for codes? Wheel speed sensor issue should also have code in DSC.

      Can also try logging wheel speeds to see if they are off.
      How would I do that in ISTA?

      Comment


        #4
        Originally posted by bmw m3 s50 View Post

        How would I do that in ISTA?
        Not sure I just use the foxwell scan tool. ISTA too fancy for me.

        Comment


          #5
          Originally posted by eacmen View Post

          Not sure I just use the foxwell scan tool. ISTA too fancy for me.
          Also trying to learn to use ISTA to it's fullest, LOL. So I can not say I am an expert in it.

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