ESP Problems on 02 2.7t A6
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ESP Problems on 02 2.7t A6
The other day I turned off ESP and after the car was restarted esp is back on by default. We the past two days with ESP on the front right wheel will randomly brake. Its weird...I was driving and its like that wheel just locked up for now real reason..then the caution sign with the circle around it came on...any ideas or has anyone ever dealt with that? I am going to see if I turn esp off if it will stop...but it was crazy.
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I just spoke to my mechanic and
he was saying that sometimes when the speed sensor is really dirty that the ABS system will do weird things thinking one tire is going faster or slower than the others. But I am going today to see if any codes are there. If I understand what he was saying...when there is an ABS issue that the brake light and ABS light/or ESP lights will flash on the dashboard...that hasn't happened to me...the the ESP light came on. So two things...I will get the car and wheels cleaned up (there has been a lot of rain, pollen and I have a lot of brake dust on the wheels) and then take that wheel off and see what we can see. But whatever I find out I will post.
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You won't find much by removing the wheel.
I don't think this is a dirty sensor. That tends to engage the ABS just prior to a complete stop. I think there is a problem with the sensor that reports steering wheel position to the ECU.
I don't think this is a dirty sensor. That tends to engage the ABS just prior to a complete stop. I think there is a problem with the sensor that reports steering wheel position to the ECU.
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Hmmm...if you don't mind me asking...
could you go into a little further detail? Is that sensor possibly telling the ecu that the car is sliding or something? I'm just trying to understand why the car would engage the brakes.
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Is this a response to me?
Threaded view, or at least hit the quote button, please. This post is in a random place in threaded view.
Guessing, I'd say that the ECU is confused about where "straight ahead" is. It may think that the wheel is turned when it isn't, or vice-versa. It needs to know steering wheel position to calculate how fast each individual wheel should be going in relation to the others. If the ABS works fine but ESP is having trouble, I doubt that there is a problem with the sensors.
However, without codes, all we can do is guess.
Threaded view, or at least hit the quote button, please. This post is in a random place in threaded view.
Guessing, I'd say that the ECU is confused about where "straight ahead" is. It may think that the wheel is turned when it isn't, or vice-versa. It needs to know steering wheel position to calculate how fast each individual wheel should be going in relation to the others. If the ABS works fine but ESP is having trouble, I doubt that there is a problem with the sensors.
However, without codes, all we can do is guess.
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Sorry....Yes that was a question for you.
Is this a response to me?
Threaded view, or at least hit the quote button, please. This post is in a random place in threaded view.
Guessing, I'd say that the ECU is confused about where "straight ahead" is. It may think that the wheel is turned when it isn't, or vice-versa. It needs to know steering wheel position to calculate how fast each individual wheel should be going in relation to the others. If the ABS works fine but ESP is having trouble, I doubt that there is a problem with the sensors.
However, without codes, all we can do is guess.
Threaded view, or at least hit the quote button, please. This post is in a random place in threaded view.
Guessing, I'd say that the ECU is confused about where "straight ahead" is. It may think that the wheel is turned when it isn't, or vice-versa. It needs to know steering wheel position to calculate how fast each individual wheel should be going in relation to the others. If the ABS works fine but ESP is having trouble, I doubt that there is a problem with the sensors.
However, without codes, all we can do is guess.
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LOL at "old"
2002 is newer than the newest car I own. It is not old.
YAW sensor has nothing to do with the wheel sensors. IIRC, it is on the sterring column. Try searching the archives. This is not the first time I have seen this problem. I just don't recall seeing a solution anywhere.
YAW sensor has nothing to do with the wheel sensors. IIRC, it is on the sterring column. Try searching the archives. This is not the first time I have seen this problem. I just don't recall seeing a solution anywhere.
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I see your point about the age of the car. :)
2002 is newer than the newest car I own. It is not old.
YAW sensor has nothing to do with the wheel sensors. IIRC, it is on the sterring column. Try searching the archives. This is not the first time I have seen this problem. I just don't recall seeing a solution anywhere.
YAW sensor has nothing to do with the wheel sensors. IIRC, it is on the sterring column. Try searching the archives. This is not the first time I have seen this problem. I just don't recall seeing a solution anywhere.
Much like this:
"1 Fault Found:
01425 - Yaw Rate Sensor (G202): Signal Wire
57-10 - Electric Circuit Failure - Intermittent "
Now this isn't the exact code, by that I mean the numbers 012425 may have been different, not sure but the rest is right on point with what we pulled last night. so are you saying that this deals with wheel angle/steering? I do know my alignment isn't 100% at the moment but I have never experienced the brakes engage like they did. But I will keep searching.