Question about 2001 Oldsmobile Aurora

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Stablity active system continue to come while under normal driving conditons. Could the wheel sensor be faulty.

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The steering wheel position sensor could be the problem. It is quite common. A scan of the system would be needed to get the trouble codes to be sure.

Posted on Dec 01, 2008

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1999 toyota Tocoma 2 wheel drive ABS light comming on and the brakes drage and ABS activates at light braking


Hi. Usually if the abs activates under normal braking, its usually one of the wheel sensors is malfunctioning .
Also i have seen the segmented ring which rotates with the wheel, come loose on its shaft (rust gets to them and the ring cracks so is then loose on its shaft) Or the segmented ring (toothed ring) has got dirt or rust between some teeth therefore giving wrong signal to the ABS system
Ihope tis will be of some help to you
John (south Wales UK)

Apr 15, 2011 | Toyota Tacoma Cars & Trucks

1 Answer

ABS and ESC off light came on. I cannot shut it off by making or breaking the switch. What does the ABS and ESC have to do with each other?


ABS = anti-lock braking system, ESC = electronic stablity control... they both use wheel speed sensors to function, so if you have a bad wheel speed sensor they both will throw codes and not operate.

Jan 04, 2011 | 2006 Hyundai Sonata

1 Answer

Abs light stays on, but brakes still seem to work ok


The ABS warning light means there is a malfunction in the anti lock system on the brakes. This will not affect the conventional braking system on the car which will continue to operate normally.

The car is safe to drive as long as you recognize that it will now be possible to lock up your wheels under hard braking or when braking in slippery conditions where the tires have poor grip.

The problem with the ABS malfunction is that you no longer have an anti -lock assistance on the brake system so in certain conditions, such as on a wet road, you will be able to lock up the wheels on the car when you brake hard. The anti-lock system identifies and retards lock up (by releasing brake pressure on a wheel or wheels) and allows the wheels to keep turning slowly even when you have full pressure being applied on the brake pedal.

The ABS system relies on sensors and if one or more fails you will get an ABS warning. It could be a faulty or dead sensor but it is impossible to say without testing and inspecting the vehicle.

The ABS has it's own fuse so you can check the fuse box in the car to ensure the fuse has not blown. The fuse location is shown in the car's owner's manual. A blown fuse would trigger a warning.

You should take the car to a competent brake specialist to have it checked and the problem rectified.

It's much safer to have the ABS in operation.

Dec 04, 2010 | 2001 Oldsmobile Aurora

1 Answer

My .a.b.s... is on, trac control isnt working, stablity control service light is on, and when im driving i can turn the wheel to 9 o'clock left andtiers dont move. when i reverse it locks my wheels up?...


This is a dangerous problem, dont worry about the abs or trac lite till you get the steering fixed..... Could be a loose steering rack ...when you move the steering wheel that much and the tires dont move you have a serious problem..PLEASE DO NOT DRIVE until you can have someone look under the car it should be vey very easy to see whats wrong Good luck

Aug 26, 2010 | 2005 Pontiac Grand Prix

3 Answers

Rear cluch not working


Depends on what model and components you have:

{ ...
ENGINE TORQUE DISTRIBUTION – DIRECTING THE FLOW OF POWER
In an all-wheel-drive vehicle, engine power can be directed to all four wheels. Subaru Symmetrical AWD differs slightly from model to model in how it directs power to the wheels, depending on its transmission.

MODELS WITH FIVE-SPEED MANUAL TRANSMISSION – CONTINUOUS ALL-WHEEL DRIVE: A viscous-type locking center differential and limited-slip rear differential help distribute torque – normally configured at a 50/50 split front to rear. If wheel speed differs between front and rear axles, the center and/or rear differentials lock up to help distribute power to the wheels with the most traction.

MODELS WITH FOUR-SPEED AUTOMATIC TRANSMISSIONS – ACTIVE ALL-WHEEL DRIVE: An electronically controlled variable transfer clutch and limited-slip rear differential distribute power to where traction is needed. Sensors monitor parameters such as wheel slippage, throttle position, and braking to help determine torque distribution and direct it to the wheels with optimum traction.

MODELS WITH FIVE-SPEED AUTOMATIC TRANSMISSION – VARIABLE TORQUE DISTRIBUTION ALL-WHEEL DRIVE: As with Active All-Wheel Drive, an electronically controlled variable transfer clutch distributes power, but through a planetary-type center differential and a viscous-type limited-slip rear differential. Torque distribution is normally configured at a performance-oriented rear-wheel-biased 45/55 split front to rear. Sensors monitor the same parameters as for Active All-Wheel Drive.

WRX STI, WITH SIX-SPEED MANUAL TRANSMISSION – DRIVER CONTROLLED CENTER DIFFERENTIAL (DCCD) ALL-WHEEL DRIVE: The STI uses an electronically managed multi-plate transfer clutch and a mechanical limited-slip differential in conjunction with a planetary-gear-type center differential to control power distribution between the front and rear wheels. Featuring manual and three automatic modes, DCCD is normally configured at a 41/59 split front to rear. Sensors monitor parameters such as wheel slippage, steering angle, throttle position, and braking to help determine torque distribution and direct it to the wheels with optimum traction. DCCD also features a limited-slip helical front and Torsen® rear differential. ... }

And what are the symptoms? How do you know the coupling to the rear is not working?

Jun 05, 2010 | 1995 Subaru Legacy

1 Answer

I have a 2001 Oldsmobile Silhouette and the traction active light comes on and makes a growling noise when you begin to take off and turn the steering wheel. How do I solve this problem?


the traction control system watches wheel speed thru the wheel speed sensors. it was designed to aid in traction in slippery conditions. when one of the wheels loses traction and the system sees an abnormal insrease of speed in one of the wheels the system will activate and derate the power to avoid wheel slippage. going around a corner the outside wheel will spin faster then the inside wheel. under normal acceleration nothing will happen, however under heay acceleration you may be causing a wheel to break free, especially on wet roads. you could have a speed sensor problem but i would expect you would also have an antilock problem. try a slower acceleration around corners then try a heavy acceleration, if it was ok on normal acceleration but activated on heavy acceleration then your going to have to lighten up on the pedal a bit. otherwise the system should be scanned for codes. i never liked this system much and it wasen,t around too long. good luck!

Mar 02, 2010 | 2003 Oldsmobile Silhouette

1 Answer

Abs light comes on while driving


Hi there,

In the event of the ABS light coming on whilst driving, means the ABS computer has detected either a malfunction, or one of the sensors is not operating as it should.

When the ABS light comes on, the computer will de-activate the ABS function of your braking, and your vehicle will now be operating under normal brakes (i.e. no anti-locking ability) and will now be susceptible to wheel lock-up under extreme emergency braking.

I would highly recommend you have the ABS computer scanned for 'trouble codes'. This will tell you "where" in the ABS system, the fault lies.

It could be anything from a simple wheel sensor needing adjustment, to a faulty pump.

As with all modern vehicles, your respective onboard vehicle computer will 'tell you' where the problem lies.


Regards,

Oct 11, 2009 | 1999 GMC Jimmy

1 Answer

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.

May 15, 2009 | 2004 Chevrolet Impala

1 Answer

Anti-lock brakes come on when applied under normal conditions


Sounds like a faulty wheel sensor. I would suggest a trip to the repair shop.

May 05, 2009 | 2002 Chevrolet Impala

1 Answer

Traction Active light comes on


1prettysmile,
The "traction active" light is a light that lets you know when a certain part of your Anti lock break system engages. Each tire has a sensor that detects a couple different things in the wheels. One of the sensors may be going bad and needs replaced. Any of these sensors going bad can cause those symptoms.

Oct 09, 2008 | 2004 Chevrolet Impala

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