Question about 2002 Chevrolet Impala

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2002 Chevy Impala Traction control /ABS problem

When backing out of driveway first thing (turning the steering wheel all the way to the left) the car will shutter in the front and that is when the ABS light comes on. Once moving forward the car will do it again this time lights up saying have traction control serviced then it goes out. I have replace the passanger front wheel hub assembly and had the Chevy garage check it out and reset the code it worked for about a month and then it started it again. Sometimes it feels like the ABS is trying to activate when I step on the brakes. Is there away to totally bypass this system other than the button on the dash?

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  • Anonymous Dec 31, 2008

    I have the same problem on a 2003 Impala. The traction control indicator lites and the car stutters when turning and accelerating from a stop. Also the traction lite comes on when accelerating on a steep hill. I have jumped out all the wheel speed sensors and the problem remains. Any ideas?

  • Anonymous Mar 11, 2009

    same

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I have a 2002 chevrolet impala and the same thing happened to me. abs light came on as well as my traction controll light. when i would step on the gas or brakes my car sounded like the brake pads were skiping against my rotors. i had my hub sensor replaced 5 times. the machanic kept telling me it was the part that need to be replaced.they hooked it up to have a dianostic done and the computer keep telling them to replace the hub sensor. so finally we brought my car to an electric auto shop. they found it was a loose wire that was turning my brakes on and off.(haywire)they fix my car in 30mins.

Posted on May 27, 2009

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My best guess would be to look at the sensor and the wires and look for a short somewhere in that system. i had trouble with my trction control sesor in the wheel hub assembly and it was a broken wire that caused the whole abds and tcs not to work period. replaced the sensor and patched the wire and it works fine for bout 6 months now havnt had a mproblem since

Posted on Dec 31, 2008

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This is probably going to upset a lot of Chevy owners that paid for expensive repairs without having their brake problems fixed. Most of the failures in the function of the Traction and Anti-lock Brakes for these Chevy's is caused by age. Each wheel hub has a two prong pin electrical connection that relaxes with age until it's impedance falls outside the sensors operating range. These rotor sensors are Hall Effect Transistors they output a a biased low voltage proportional to the rotation of each wheel hub. If the Anti-Lock computer can't see a voltage at a hub when all the others are showing vehicle speed it assumes a wheel lock up (skid) and will cause a system anomaly such as low speed brake actuation without you touching the brakes, or traction control actuating on a turn, etc. In effect the problem will usually be a connector. This would have been a safety issue but for the fact that it only occurs at low speed and does not impede stopping the vehicle. GM diagnostics will read this as a hub transducer fault, hence the expensive repair. Once you have the connectors disconnected, clean the contacts and spread the male pins with a small tool. Your brakes will work fine until the connector relaxes again. A long lasting fix is to remove the connectors and solder the sensor wires together. If the problem is with a hub transducer it is most likely due to some form of contamination that could simply be cleaned off the removed hub and then put the hub back on the vehicle.

Posted on Nov 28, 2011

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  • Wanda Mar 05, 2012

    Steve, this sounds like a good starting point (and hopefully ending point!) for my 2005 Impala. My husband, who's a retired auto mechanic, will take a look at it. We just got new tires and I thought that might have something to do with the problem, he thought it might be a transmission problem. I'm glad I did this search! He just had surgery so we'll have to wait a few more weeks before he can address the problem, but I will come back here and let you know if this fixed our problem.

  • Linda Schales Oct 29, 2013

    This is exactly what my 2002 chevy impala is doing and after

  • Linda Schales Oct 29, 2013

    buying two new wheel hubs this noise started. Thanks for the info.

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I have a 2002 Chevy Impala and our ABS lite is on all the time and so is our message lite on also. Can u reset it will the radio reset it.

Posted on Aug 21, 2010

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SOURCE: 2001 impala- Traction, Abs, Brake lights on

abs sensor is built into hub[bearing]common problem when changing them and or brakes r that the sensor connection is not properly reconnected or wire got damaged recheck the sensor wiring and that connector is connected to clip by strut clip is part of system

Posted on Jul 26, 2010

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SOURCE: 2001 Impala Traction Activates unnecessarily

THE SPEED SENSOR IS LOCATED INSIDE THE HUB ASSEMBLY. THE TWISTED WIRES GOING TO THE SENSORS ARE PROBABLY AT FAULT. THE WHEEL SPEED SENSOR HARNESSES ARE AVAILABLE THROUGH A DEALERSHIP.

Posted on May 24, 2009

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SOURCE: 2005 Impala abs & traction control problem

2005 Impala it turn off some times when I am coming to a complete stop or when I am slowing down but it starts right back up with no problem can you help me

Posted on Oct 01, 2009

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On my 2004 chevy impala the traction control abs warning lights come on and stay on .


If the ABS has failed, there will not be any traction control since the latter is dependent on it.

You could have failed or damaged wheel sensors.

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04 chevy impala trac cantrol active while starting of with wheels cut sharp to the left


Cou;d be a speed sensor/ABS. Cutting hard left or right is causing one wheel to move faster than the other. Slight variations will cause a traction light. Over time this will cause the ABS light to come on. I wouldn't worry about it right now. It would be hard to pinpoint the sensor that is going out. Just a note. When the ABS and Traction lights are on. All it does is revert your car back to the old system. Meaning that, your tires will lock up if you hit the brakes hard...

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2001 Chevy Impala. When I turn my traction system off the steering act like the pump is going out. But when I turn it back on it go away. But when it the traction is on it sometime stall in the front...


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I have a 2002 chevy impala ls 3.8 V6 automatic transmission with traction control problems, when its cold and you start the car a let it run for about 20 min sometimes when taking off the traction control...


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Have a 2004 Chevy Impala recently purchased used.


sounds like you have a wheel hub out causing the lights to come on. odds are it would be the front left. it's not sensing right causing the traction control to be turned on. or it could be a loose wire for that hub. gm cars has had a problem with these two issues.

Nov 15, 2009 | 2003 Chevrolet Impala

1 Answer

Traction Control comes on


I would recommend you have the vehicle scanned for trouble codes. You can get this done at no charge at your local Auto Zone or Advance Auto Parts store.
Record the code numbers and reply back to this message and we can go from there.
Based on your description, I would guess you may have a HWSS ( hand wheel speed sensor) issue or possibly an ABS wheel speed sensor problem, again, this is only a guess until you have the codes read.
Let me know.
Regards,

Apr 16, 2009 | 2003 Chevrolet Impala

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I can't answer the question about the gas fumes, but I had the same problem last year with the "Service Traction Sysytem" message and the Trac and ABS lights coming on in my Impala. Mine turned out to be because of a bad wheel bearing, that was causing the ABS and traction system not to work. I'm not sure if you've experienced this, but another thing that would happen with mine was that I would go to brake and have a hard time depressing the brake pedal, almost like it was pushing back. That is the point when the Trac and ABS lights came on.

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This light is usually caused by a problem in the ABS system. A problem in the ABS system will dissable the traction control system. you will need to have the computers scanned for trouble codes.


Tech JK
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