There are many possible causes, some serious others not. ASR light is a very common problem and there are many good threads on the subject. Try a search above. Do a search also for building a fault code tester and reading fault codes. Your car has a 38 pin diagnostic connector that will help you determine the source of the problem. You can build a fault code reader for the car for less than $10.

ASR light still on. Light came on during hard acceleration, while passing on freeway. Where is the throttle acc. and can a reset it or clean it somehow?
Thanks

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.If it is spinning a tire at high acceleration, that is what it is supposed to do.
Why don't you take a previous posters advice and get the codes??

Update, i was doin 75 when i hit the gas !!! I seriously even my V12 span a tire at 75.

If it downshifted , it might..

Check tire PSI all around and then get codes ..you may have a Brake Switch code in there ,,,very common ASR fault. but check tires/psi first as tire sizing is critical for rev counting/comparison by the computer for ASR.

You may also consider running one thread on your problem. Dual threads take on a life of there own on and more often do not help get to the remedy of your complaint..........

If not where is it located and where are the numbers indicating which pins are what, as to jump out the asr?