Question about 2003 Buick Rendezvous

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Anti lock light keeps coming on and vibrating sound when use the breaks. The ABS sensor has been replaced times and no one can seem to figure out the problem. help

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  • 135 Answers

MOST LIKELY CAUSE IS WHEEL SPEED SENSOR WIRES BROKEN , CK THE VEHICLE WIRING HARNESS TO EACH WHEEL . WILL HAVE TO REMOVE THE WIRING INSULATION TO VERIFY THIS . HAVE DONE THIS MANY MANY TIMES ..

Posted on Aug 06, 2010

Testimonial: "This was great help. After taking my car to three different Mechanics and a Buick dealer, I just kept getting the sensor is the problem. "

  • hme0603 Aug 06, 2010

    Thanks for the help. How exactly do I ask my Mechanic to do this without sounding like I know his job.

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2 Answers

Why does my ABS light stays on and sometimes i get a vibration in the brake petal causing my 2002 Cadillac escalade not wanting to stop?


Sounds like a fault with the Antilock Braking System. The vibration in the pedal is the ABS working. With your foot on the brake pedal, it releases and re-applies the brakes to stop a skid from the wheels locking up. You need professional service for brakes.

Seems to be a known issue on all Cadillac and requires the ABS module to be replaced.

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1 Answer

Abs


sounds like the anti lock pump is gloing out

Oct 27, 2012 | 1998 Chevrolet Blazer

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

1 Answer

Anti loc brake problem


when the abs light comes on that disables the abs wich frees up your brakes u will need to go to the shop and have a code pull done on your car to figure out what is setting the abs code

Mar 15, 2010 | 2000 Jeep Grand Cherokee

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Whot is an anti lock and where do i find it and how it repaired.? when comming to a stop the brakes seem to pulsate.


you need to take your car in to a reputable brake shop. Your rotors are likely warped causing some pulsating. The anti-lock is an automatic function that helps keep wheels from locking up under hard braking. If your ABS/Anti-Lock light is on, definitely take it to get inspected.

Nov 12, 2009 | 2005 Buick LaCrosse

1 Answer

Just had breaks/rotors replaced. Car is still shuddering when breaking at times. Service light came on for traction service/anti lock breaks.Traction off light on. Any ideas? Did they actually replace my...


If the car shudders all the time stopping it could be a rotor out of round sometime this happens with new rotors, they should replace them under warranty. But if it is more like abs shudder then they could have damaged a sensor at one of the wheels, the sensors are used for abs and traction control.

Sep 23, 2009 | 2003 Buick Rendezvous

1 Answer

After driving for a short time the anti-lock break light comes on


you should check the ABS system under the hood. It's where the brake fluid reservoir is. make sure you're not losing fluid. and then, check your abs sensors on wheels; they could be going bad.

Sep 07, 2009 | 1995 Oldsmobile Cutlass Ciera

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2002 buick abs, trac off lights come on


BAD WHEE BEARING AND PROBABLY THE PLAY FROM THE WHEEL BEARING HAS DAMAGED THE SPEED SENSOR FOR THE ABS

Jul 29, 2009 | 2002 Buick Century

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

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