Question about 2004 Pontiac Grand Am
The ABS light and the traction control system are all linked in with the BCM(Body Control Module) or more commonly known as a body control computer, when a short occurs in the ABS system, whether it may be a defective ABS Wheel Sensor which every wheel has one in the (Anti Lock Brake System) ABS, being the service engine light soon came on is an indication that the computer has stored a code, proper way to find out if a code is styored is to visit an Auto Zone Parts store and have them read(scan)it for free and also they will give you a computer read out of what the code means what part/parts are defective and where they are located in your car along with the cost of weach part needed to repair the problem.
If you like to do the scanning yourself, purchase a hand held scanner (OBDll) is what the later scan tool is refered to as, for a price ranging from $79.00-$299.00.
Many times the Body Control Module could be the problem and prices can be very expensive, ranging from used part $400.00 to new $1,000.00 just for the BCM.
If the codes show a defect in a wheel sensor, each one of these brake light wheel sensors can be anywhere in price from $49,00-$149.00 each if they are defective, the best and cheapest repair for this type of problem is the possibility of the wheel sensor or sensors being dirty, a professional clean up and walla the problem is cured for hardly any cost other then your time and effort. Jack the vehicle up and with a clean rag and paper towel, tools needed to remove the sensors for clean up or replacement are,a ratchet, jack, wheel lock and, of course, a rag or paper towel to clean it off with. After you have all of this stuff, you can feel free to get started. This should only take you an hour or two to do yourself.
First, you have to choose which side you want to get started on. You can choose either the passenger side or the driver side; it does not really matter. However, whichever side you do choose, that is the side that you, of course, need to jack up first. Before you jack up the car, you need to turn the steering wheel to the opposite side that you are working on. For example, if you are working on the driver side, then you are going to want to turn the wheel to the passenger side. Also, when you get it jacked up. You should use a jack stand, not just the jack. You never know how long you will need to have this car jacked up, so you will want the jack stand.
After you turn the wheel and get everything all set up, you will notice that you should be able to locate the ABS wheel sensor very easily. It should be located directly mounted to the knuckle. To take this off, you are going to have to remove the two bolts that are holding them in place. In most Toyota cars, they are 10mm bolts. However, some of them can change from time to time. Overall, there will be about four bolts you have to take out. To do this, just follow the ABS sensor around so that you can remove all of the bolts. When you get the sensor off, you will notice that it is all covered in dirt. Take your rag or paper towel, and start whipping it off. As you do, you will notice that the very middle of it has a sliver strip that you could not see before. A lot of times, dirt blocks this and can cause problems, as you found out. After cleaning it, simply reverse the steps you did to reinstall it. Also, be sure to check both of the front ABS sensors. The one on both sides of the car!
Posted on Jun 07, 2010
Sounds like u have a abs wire broken or a bearing going bad
Posted on Jun 07, 2010
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Posted on Jan 02, 2017
I have this same problem with my 2000 Grand Am and the mechanic that I had taken it to had told me it was from a bad ABS sensor in a wheel hub, in order to fix that I would need to purchase a new hub. He said that triggered the service vehicle soon light and had caused the ABS light to come on as well. Although I have not fixed it yet, I trust that this is the problem.
Posted on Jul 08, 2009
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