Question about 2002 Chevrolet Tahoe

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Where is ABS modual and how do you know it is defective, my ABS, anti lock break lights keep coming on in my truck.

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What you need to do is get the code or codes.This is the best way to find out what is causing the light to come on.The ABS module is not usually the problem.The usual problem is the speed sensors in the front hubs.Which means you need to replace the hub assembly.They are not cheap.That`s why your better off getting the codes.This will tell you which wheel it is.The only problem I`ve seen with the ABS module is that they will keep running and kill the battery.If yours was doing this you would know because you will hear it running.It is just under the drivers seat on the inside of the frame under the vehicle.Hope this helps.Good luck.

Posted on Feb 18, 2012

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Posted on Jan 02, 2017

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SOURCE: the ABS anti lock warning light is on

Could be as simple as low fluid level in the master cylinder. Check that first and then if it is not low or filling it and making a few starts and stops does not kill the light then stop by your local parts store and they will read your codes for free and tell you what the problem is. Free is good, bad brakes is bad, but hopefully it is just the fluid level.

Posted on Nov 13, 2009

bomark2002
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SOURCE: why do my anti lock breaks engage on my 1998 tahoe everytime?

either your antilock brake sensor is not working properly or your switch behind your foot brake is not working properly.

Posted on Jul 07, 2009

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SOURCE: anti lock break light on how much is it generaly for front sensor

This could be caused by a fuse being blown or this could mean that your brakes need to be changed.

Posted on Jul 08, 2009

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SOURCE: abs anti-locking faulty light came on filled brake

The anti lock brakes have nothing to do with the truck starting.I believe you have 2 different issues.What you need to do is see if your getting fuel pressure.If your getting fuel then you need to check and see if your getting spark at the spark plugs.As far as the ABS you need to get the codes to see what is causing the light to come on.The only way to clear the codes is with a scan tool.But it has to be repaired first or the light will come back on.The fluid being low will not make the ABS light come on,just the regular brake light.Once you get the codes just post back with the year and motor of your vehicle and I can help you out with your problems.Hope this helps.Good luck.

Posted on Sep 15, 2010

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1 Answer

Abs and traction control dash lites come on and off at various time..sometimes never come on


Your abs and traction control lights should only come on when you start to slide while breaking(ABS), and when your wheels spin in place when excelerating(TC). If those 2 things don't happen, which with some people they never do, you should never see the lights come on. Only when those mechanisms are in use do the lights come on. And they will always flicker as that is what abs and tc are, intermitant surges to break up the constant. ABS does this for obvious reasons...anti lock break, so when you slide, the abs "taps" the breaks in short bursts so they don't lock up. TC "taps" the exclelrator when it slips. Those "taps" are what trigger the lights on your dash, which is why they flicker and don't stay on.

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It would be best to have a diagnostic test performed at a garage, this will then tell you the exact fault.
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Good Day,

Usually that indicates bad ABS sensor or ABS component in the system. The quick fix is to locate the ABS fuse in your fuse panel, remove this fuse and abs is disabled. Your brake will function normal and it is safe to drive w/o abs until you can have it checked out, keep in mind you will lock you brakes under heavy braking conditions.

hope this helps

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