Question about 1998 Cadillac DeVille

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I changed the rear brakes yesterday and now the anti lock light is on and the traction control light is on i hooked the computer up and it said that the torque converter is stuck none of which were a problem til i changed the breaks. i know that i left a screw out that was attached to the parking break, does that have anything to do with it/ or what is the problem

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You need to reset your ecm " computer" The code has never been removed it will still have it in the system, Stop by autozone and they will empty your codes for free. Good luck to you.

Posted on Apr 04, 2011

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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.

May 20, 2011 | Buick Regal Cars & Trucks

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I have a Toyota RAV 4 2005 Model which just went above 95000Km. I had engine oil and the brake pads changed 3 days ago. Just yesterday my engine check light came on and the VSC TRAC read off. What do these...


have whomever replaced the brakes look into it. seems related. Also is the abs light on as well? usually both lights come on together related to anti-lock braking and traction control.

Feb 17, 2011 | 2004 Toyota RAV4

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In my 03 deville my traction control light is on an my 3rd brake light on the trunk not working


the rear brake light probably needs to have a new bulb. The traction control light on means traction system is off. There is a button I think on the dash or cosole that says TCS...try pushing the button and maybe that will turn light off. At hard throttle TSC keeps wheel from spinning
with the help of wheel speed sensors from the anti-lock brake system.when TSC is off car will drive like a hot rod. the TSC takes away power from engine by reducing power.anti -lock system lets the TSC know that one wheel is spinning faster than the rest.If that helps let me know

Feb 13, 2011 | Cadillac DeVille Cars & Trucks

3 Answers

Traction control and anti-locks(ABS) lights come on.


Traction control and anti-locks(ABS) lights come on there is sensors that are pluged in behind the rotors check and see if they are disconected or loose sometimes when you change your brake pads they might come loose and not making contact.

Jul 06, 2010 | 1998 Cadillac DeVille

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

2 Answers

Service vehicle soon light, anti-lock brake light


There could be a hundred causes for a check engine light. First step is to hook up a computer scan tool and see what codes the computer has. The next step depends on the codes.

Dec 22, 2009 | 2001 Oldsmobile Alero

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
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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.
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

    Anti lock abs and traction control light.


    did you accidently unplug a rear speed sensor

    Feb 27, 2009 | 1996 Cadillac Seville CA Value

    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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