Question about 2000 Oldsmobile Silhouette

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The anti lock brake light and the traction control light came on at the same time... The vehicle seems to run ok..... is this a sensor malfunction ?....the master cylinder is full. When I turn off the traction control the light goes out until after restarting the vehicle. Can I run the van without hurting anything ...Thanks !!!

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Sound's like you just need to replace the brake pad's when they get to low the sensor will come on.

Posted on May 09, 2010

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If its an ABS and a low trac light, simultainiously, you need to have this checked out by your mechanic. Its a code pending in your cars computer for either regular maintenance due or a more severe problem that could interrupt your vehicles ability to start and run at all. Procrastinating is not a good idea, the repairs as a result could cost you more in the long run. Im inclined to believe that there are sensors somwhere that need to be repaired or replaced, most likely wheel speed sensors, 02sensors.

Posted on May 12, 2010

  • Hoyt Keys Apr 28, 2013

    Brakes are good,fluid level also good.had it tested no codes came up for this problem.

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1 Answer

Trac control light on & anti lock lite came on same time stays on


That means there is a problem with the ABS , has DTC'S - diagnostic trouble codes in the EBCM - electronic brake control module . You need to have diagnostics run on it !
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This vehicle is equipped with the BOSCH 5.3 antilock braking system.
The vehicle is equipped with the following braking systems:
?€¢
Antilock Brake System (ABS)


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Vehicle stability enhancement system (VSES)

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2 Answers

Where is the traction system sensor


what type of vehicle are you talking about, normally the traction systems use the vehicle abs/ speed sensors to monitor traction of the vehicle

Apr 17, 2013 | 2002 Oldsmobile Silhouette

1 Answer

Anti lock brake light keeps coming on and then the low traction light comes on and the brakes seem to be slipping


sounds like a ABS sensor has failed. Please have it checked soon,didnt like when you said brakes are slipping,this could be very dangerous.....hope this helps and good luck....Please rate my post and thank you ahead of time.

Aug 16, 2012 | 2003 Pontiac Bonneville

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2000 buick regal , track light on, anti lock brake light on???


You will need to take it to the GM dealer or any well equipped brake shop and have the system ABS/Traction Control system computer scanned, a fault has occurred in the system and at this time you have no Traction control or Anti-Lock brakes. When the lights were turned on the systems control module stored a code for the fault in the system. The ABS and Traction Control are one in the same system.

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My tahoe has the traction off light what doe that mean?


It means the traction control system has been disabled. It can be done manually by pressing the switch on the dash or by an onboard computer (meaning there is a problem). If you can't press the button to get the light off, then get it scanned. Traction control system works with the anti-lock braking system and the engine to help the driver control the vehicle in the event it should be slipping or skidding. It will activate the anti-lock brakes, help reduce steering pressure to better steer and can sometimes cut out engine cylinders to reduce the power going to the wheels to better control in the skid.

Jan 27, 2011 | 2007 Chevrolet Tahoe

1 Answer

Traction off light and anti lock brake light on at same time


You likely have a wheel speed sensor that is bad. You will need to have the vehicle scanned to find out which one

Mar 28, 2010 | 1998 Oldsmobile Aurora

1 Answer

ABS light came on and also the Advanctrac light....says check ADVtrac.


There are many sensors on your anti-lock brake system, as well as on your traction control system. Sometimes one giving a signal will set off the other one. Unless you are can physically feel any symptoms, then a computer test is really the only way to tell what the problem is. Many auto part stores offer to check the computer, and many of those will do it for free. One you know what the computer says is wrong, you can have the problem repaired. You can still drive your vehicle, but be aware that it is highly possible that your anti-lock function as well as the traction control system may not work. The anti-lock keeps your wheels from locking up if you slam on the brakes. The traction control diverts power and/or uses the anti-lock brake system to reduce braking on a certain wheel. I would imagine that there is a problem with the anti lock brake system since it is used in the traction control system. Hope it turns out to be small!

Jan 24, 2010 | 2003 Ford Expedition

1 Answer

Problem with my cruise control and ABS light on 03 Explorer


Anti-Lock Control —Vehicles Built After 03/2002 The 3-channel anti-lock brake system consists of the following components:
  • front wheel speed sensors
  • front wheel speed sensor rings
  • hydraulic control unit (HCU)
  • Anti-lock brake control module (ECU)
  • rear wheel speed sensor
  • rear wheel speed sensor rings
  • yellow anti-lock brake warning indicator
The 4-channel anti-lock brake system with traction control and stability assist system consists of the following components:
  • active brake booster with integral solenoid
  • brake booster release switch
  • front wheel speed sensors
  • front wheel speed sensor rings
  • hydraulic control unit (HCU)
  • stability assist module (ECU)
  • stability assist event indicator
  • lateral accelerometer
  • longitudinal accelerometer (4x4)
  • rear wheel speed sensors
  • rear wheel speed sensor rings
  • steering wheel position sensor
  • yaw rate sensor
  • yellow anti-lock brake warning indicator
  • brake pressure transducer
  • traction control switch
---------------------------------------------------------------------
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.
I would unplug it and see what happens. The connector should have a small tab to depress so you can pull the connector out.
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).
    Cut the carpeting along the perforations.
  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
  • A malfunction in the anti-lock brake system will cause the anti-lock brake control module to shut off or inhibit the system. However, normal power-assisted braking remains.
  • Malfunctions are indicated by the yellow ABS warning indicator in the instrument cluster.
  • The anti-lock brake system is self-monitoring. When the ignition switch is turned to the RUN position, the anti-lock brake control module will carry out a preliminary self-check on the anti-lock electrical system indicated by a three-second illumination of the yellow ABS warning indicator in the instrument cluster.
  • During vehicle operation, including normal and anti-lock braking, the anti-lock brake control module monitors all electrical anti-lock functions and some hydraulic operations.
  • Each time the vehicle is driven, as soon as vehicle speed reaches approximately 20 km/h (12mph), the anti-lock brake control module turns on the pump motor for approximately one-half second. At this time, a mechanical noise may be heard. This is a normal function of the self-check by the anti-lock brake control module.
  • Pedal pulsation coupled with noise while braking on loose gravel, bumps, wet or snowy roads is normal and indicates correct functioning of the anti-lock brake system.
  • Warning Lamp Indicator
    The anti-lock brake system (ABS) uses the yellow ABS warning indicator to alert the driver of a malfunctions in the ABS.
    The yellow ABS warning indicator will come on to warn the driver that the ABS has been turned off due to a symptom that exists in the ABS. Normal power assist braking remains but wheels can lock during a panic stop while the yellow ABS warning indicator is illuminated.

    -----------------------------------------
    Please report back, I am curious if that is what it is. Good luck

    Mar 03, 2009 | 2003 Ford Explorer

    1 Answer

    TRACTION CONTROL.


    that is what it is desgined to do - reduce acceleration and apply the brakes intermittently when the wheels spin. You have a switch you cn push to disable it. You need to disable each time you start car. See owner manual.

    06-10: Traction Control 1996 Contour, Mystique Workshop Manual
    DESCRIPTION AND OPERATION Traction Control System The optional traction control system is designed to control wheel spin when accelerating on slippery or loose surfaces. Traction control system is available only with anti-lock brakes. The traction control system includes the following components:
    • Hydraulic control unit.
    • Throttle control actuator (9N825).
    • Traction control switch.
    • Traction control warning indicator.
    • Front brake anti-lock sensor (2C204).
    • Rear brake anti-lock sensor (2C190).
    The traction control system operates as follows:
    • System functions by transferring torque from the spinning wheel to the wheel with the most traction.
    • This is achieved by applying the brake at the spinning wheel through the hydraulic control unit or reducing the throttle opening.
    • Traction control braking and throttle control occur at vehicle speeds up to 50 km/h (30 mph).
    • At vehicle speeds above 50 km/h (30 mph), only throttle limiting control is used.
    • If speed control is operating when traction control system engages the traction control system will disengage speed control through the use of a speed control relay. This action is the same as applying the brake pedal with speed control engaged.
    1996 contour
    Traction Control Switch The traction control switch is located on the instrument panel, left of the steering column.

    Oct 22, 2008 | 1995 Ford Contour

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