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ABS light My ABS light comes on and off. I have heard that it will not affect braking. How do I determine which wheel sensor is bad

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Posted on Nov 10, 2011


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My dash light abs and brake lights came on as well as internal lights.why

What I would do: get a fault code reader on you truck. Autozone will put one on it for Free. Record the codes and use a Haynes manual and on-line research to assist in diagnosis. You probably have several simultaneous issues that are affecting one another. Usually an ABS warning light comes on, when the vehicle isn't moving, when a wheel sensor or sensors is bad and/or the ABS computer module is bad. Rebuilt modules can be had for $100 or so. Sensors are easy to replace once you determine either with a specific fault code or with a multimeter which ones are faulty. If the vehicle is moving and the ABS light comes on when you are pressing the brake... this is normal when the ABS is activated and the vibration is felt through the brake pedal.

Apr 30, 2015 | 1999 Dodge Durango

1 Answer

When I am just about stoped the abs comes on and if I press brakes again it does not come on. I have a 2002 2500 chevy 4x4

This can be caused by a variety of reasons depending on make and model. If you have ONE newer tire than the rest, wet/slippery road conditions, loose/worn wheel bearing, poor connections at ABS sensors or bad sensors. I would have the system scanned to determine the affected wheel. In a lot of cases, especially on trucks, play in the wheel hub assembly is a major cause

Apr 06, 2015 | Cars & Trucks

1 Answer


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.

Mar 21, 2011 | 2004 Pontiac Aztek

4 Answers

Why is my abs light on in my 03 chevy? and on the passanger side the front tire is roaring really bad when i drive, please help

Ok, there are sensors on your front wheel hubs. This could easily cause the abs light to turn on. The loud noise could easily be your wheel hub going bad. Easiest way to check, jack up the front of the truck, grab tire, shake back and forth and up and down. Same amout of play each way? You're wheel hub is bad.......

Aug 27, 2010 | 2003 Chevrolet Tahoe

2 Answers

I have a BMW 1999 wagon with 64,000 mi . It runs great and I feel no apparent break problems. But... the ABS break light comes on with the triangle (caution) with the circle arrow with the exclamation...

The ABS brake light will go on whenever it doesn't see a signal coming from the wheel speed sensor on any of the 4 wheels.

May need to have it scanned for ABS Brake codes to determine which wheel is affected.

Aug 16, 2010 | 1999 BMW 323 Series

4 Answers

Abs brake light is coming on just had brakes on in spring, and just had the car inspected in June

The brakes should still be working alright even with the light on. That light is just showing that there is a fault in the anti-lock brake system, which just keeps the wheeles from locking up on a wet or snowy road. The problem could be a wheel speed sensor, dirt and road grime can get on the end of those sensors and send a false reading from the toner gear to the computor, which turns on the light.
The best thing to do is have a code scanner hooked up to it to find exactly what the problem is. If there is an autozone or advanced auto near you, go there and they can check it, usually free. Otherwise you'll be paying up to a $100.00 just for 30 seconds to retrieve the code.

Aug 12, 2010 | 2001 Ford Taurus

1 Answer

On my 1998 Grand Caravan, the ABS light has come on and I know that I need to replace the front brake pads as I heard them squeeling this weekend but also now the front blower stopped working for the AC...

The ABS light is most likely a bad Wheel Speed Sensor.

The Blower is most likely a Blower Resistor that rusted away. You should have a couple of blower speeds left.

The directional issues are the third problem

Work on one thing at a time.

Aug 03, 2010 | 1997 Dodge Caravan

5 Answers

What are probable causes for an ABS warning light to come on even though brakes feel normal?

you have a trouble code stored in the system and youll have to someone hook up a code reader to retrieve the codes to diagnose the problem,the brakes wont be affected unless you were involved in a vehicle skid and the abs wouldnt engage

Jan 19, 2010 | 1995 GMC Jimmy

2 Answers

ABS signal light comes on

it means that you are having a malfunction with the abs system on your have that checked immediately by a certified mechanic

Feb 11, 2009 | 2005 Chrysler Pacifica

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2001 olds ABS and traction control sensor issue

An ABS sensor DOES affect the traction control system. Traction control uses these sensors to determine if a wheel is losing traction. A bad sensor will cause both the ABS and TRACTION lights to come on.
The CHECK ENGINE light however is going to be a seperate problem.

Jun 08, 2008 | 1999 Mazda Pickup

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