Question about 2003 Buick Century

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The anti-lock brake light keeps coming on. After the first time and 3 mechanics later it was determined that the hubs on the front right and left had to be replaced,which I did. It was fine for awhile and then the light started coming on intermittently. Now, either right after backing up or after I make my first right turn (seriously) the light comes on and stays on.

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  • jfoerster129 Aug 04, 2010

    I should mention that after it started coming on intermittently, I did take it back to the mechanic and it didn't do it during the test drive they did. And they put it on the computer and couldn't find anything.

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There may be a loose connection at the front hubs, or damged CV boots allowing grease to accumilate on the sensors, bring it back to the mechanic as they didnt properly fix it!!

Posted on Aug 04, 2010

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Anti-Lock Control —Vehicles Built After 03/2002 The 3-channel anti-lock brake system consists of the following components:
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I suspect the abs issue is causing the speed control not to work if it happened at the same time the cruise control stopped working. When the yellow ABS light comes on, it means the ABS is dactivated. You may have a faulty accelerometer which senses acceleration and yaw (side to side lean). I have not seen a bad one but you said it is sensitive to acceleration.
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Here is where it is:

Accelerometer Removal and Installation
  1. NOTE: The accelerometer is located under the center, rear passenger seat carpet. (I think you have to remove seat for access).
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  1. Disconnect the electrical connector.
  1. Remove the nuts and remove the accelerometer.
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Have dealer hook up tester and pull fault codes if you can't find an easy solution.
Some background info
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  • Malfunctions are indicated by the yellow ABS warning indicator in the instrument cluster.
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    Please report back, I am curious if that is what it is. Good luck

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