Question about 2001 Pontiac Aztek

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Is there a way to check if the wheel speed sensors are working before replacing them?

Awd and abs lights on. possible wheel speed sensor. I don't want to pay for 4 of them so how do I know which one I need? Is there a way to test them?

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Easiest way is with a scanner. You can unplug each sensor and ohm test them but unless you need to... It\'s a pain that way. Find a scanner and get codes and change the wheel bearing assembly 7 out of 10 times it\'s RF

Posted on Nov 21, 2013

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Posted on Jan 02, 2017

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SOURCE: front passenger brake is pulsing

The ABS sensor, or wheel speed sensor is part of the hub wheel bearing assembly. If the bearing or ABS sensor fails, the entire hub assembly must be replaced. You can get further details about wheel hub assembly from http://www.carpartswarehouse.com/part/wheel-hub-bearing.html

Posted on Jun 06, 2011

  • 4044 Answers

SOURCE: MY 2002 AZTEC DOES A

You need to get a Haynes or Chilton's repair manual for those directions. Now as far as your problem is concerned it's not a sensor, it's a kinked brake line, bad Brake Compensator or bad Caliper. The compensator is the part that comes off the Brake booster and has all the brake lines attached to it, usually rectangle shaped. Now the problem could be an air bubble that got into the system if the brake fluid was low but that usually leads to mushy or soft brakes. And yes, it is possible the problem could be the ABS module itself but eliminate the other possible problems first.

Posted on Mar 21, 2011

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SOURCE: Wheel Speed Sensor on a 99 Grand Prix

i use a scanner to check to see all wheel sensors.getting a signal . it take two people. your scanner have to be type to check abs system. you can use ohms meter . it will tell you your wheel sensor is open or shorted out.

Posted on Mar 23, 2009

  • 24 Answers

SOURCE: where is the speed sensor located on a 1994 pontiac bonneville

Speed sensors are on the outside of the trans but mounted to it. Go to your parts store and ask for your part. Once you have a visual of what it looks like, get under the car, find the trans and bingo!

Posted on Oct 01, 2009

  • 506 Answers

SOURCE: I have a 2004 Pontiac

There are speed sensors in both front hubs as well as the transmission. One of the three is giving you issues. I did find this interesting recall for your car however.

http://www.carquest.com/common/downloads/partsTechBrakeCQB%2004-12.pdf

Posted on Jun 12, 2011

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Where is the speed sensor?


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Abs light on a 06 expedition


Having the vehicle checked for DTC'S - diagnostic trouble code's would be a good first step . ABS light on codes are stored . Suggest you take your vehicle to a qualified repair shop that has the knowledge an testing equipment to diagnose the problem properly .
Anti-Lock Brake System (ABS)
The 4-wheel, 4-channel anti-lock brake system (ABS) consists of the following components:
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  • Front wheel speed sensor
  • Front wheel speed sensor ring (integral to the front wheel bearing)
  • Hydraulic control unit (HCU)
  • Rear wheel speed sensor
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    CLEAR the DTCs. RETRIEVE the DTCs. If DTC B1342 is retrieved, INSTALL a new module. REFER to Anti-Lock Brake System (ABS) Module in this section. REPEAT the self-test. B1483 Brake Pedal Input Circuit Failure ABS Module Go To Pinpoint Test B . B1676 Battery Pack Voltage Out of Range ABS Module Go To Pinpoint Test C . B2477 Module Configuration Failure ABS Module CONFIGURE the ABS module. REFER to Section 418-01 . CLEAR the DTCs. REPEAT the self-test. If DTC B2477 is retrieved again, INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module . REPEAT the self-test. B2734 Pedal Travel Sensor Supply Error ABS Module Go To Pinpoint Test M . B2736 Pedal Travel Sensor Circuit Fault ABS Module Go To Pinpoint Test M . B2737 Pedal Travel Sensor Jammed Error ABS Module Go To Pinpoint Test M . B2738 Pedal Travel Sensor Velocity Error ABS Module Go To Pinpoint Test M . B2740 Pedal Travel Sensor Spike Error ABS Module Go To Pinpoint Test M . B2741 Sensor Cluster Defective ABS Module FOLLOW the diagnostic tool directions for the calibration procedure. B2900 VIN Mismatch ABS Module VERIFY that the module has the correct as-built data.
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2 Answers

AWD Disable and abs light always come on , already replaced rear selanoid . Whats going?


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Aug 30, 2010 | 2002 Buick Rendezvous

2 Answers

Suddenly the ABS light came on. Fluid OK, sensors not broken. Is there a way to check the speed sensors?


The abs light,has to do with the brakes,if the sensors have been checked then the brake liners most likely need attention,if the vehicle does not stop correctly the abs light will come on.

Apr 23, 2010 | 1993 Buick Roadmaster

1 Answer

Service Engine soon light and Service AWD ligths are on, also the abs light


ABS light is on due to a bad or dirty ABS sensor on the front wheel hub. Inspect the front wheel ABS sensor and wire leads on the front wheel inner hub where the speed ring is. At worst it's going to be a bad electronic Actuator at the transfer case or one of the speed sensor at the transfer case, but most likely it's going to be the vacuum switch if you don't have any check engine light on.

I suggest visit autozone or dealer for scanning and know exactly the fault code.

Hope helped.


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1 Answer

AWD Light stays on


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Jul 28, 2009 | 2002 Buick Rendezvous

1 Answer

Traction Contrl and ABS Light on


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