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Originally Posted by Rachel
So, I was autoxing recently and during my first run my car all of sudden shows a brake symbol with an exclamation point error light on the dash. The power is reduced and the revs jump from 1.5-2 up and down. I shut the car off, turn it back on and it's fine. Out of 16 runs it happened 8 times.
Also, I always turn both DSC/DTC off. I've been Autocrossing the car for 3 years, and have not had issues before.
Later in a run where I didn't get the error message, my brakes locked up - no ABS.
Took it to the dealer and they checked for faults.
- Engine Power reduced due to brake overheating (however, it was my first run and I doubt the brakes were hot, and it didn't happen in some of the later runs).
- There was also a wheel speed sensor fault. They have no idea.
Does anyone have any suggestions?? Thanks.
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The wheel speed sensor must have something to do with it. How else do you explain the code in the memory. Maybe it is failing intermittently. If they are cheap I would just change the sensor that threw the code. I would also try to find out what tells the computer that the brakes are overheating. Maybe it's part of the speed sensor.
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