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In some cases, it's actually a bad ABS wiring harness, not the hub bearing that is bad on the Buick Century that causes the ABS light to illuminate. Back to your question, a scanner that has ABS, an Actron Brake Scan or Tech2 can reset it.
You most likely have a bad wheel speed sensor. The first thing to do is inspect the wires coming down to the front wheel speed sensors and check for any obvious damage (this is VERY common). If you don't see anything that looks obviously damaged or broken, then you will have to scan your Powertrain Control Module (PCM) and your Antilock Brake System Module (ABS) for fault codes that will lead you to the cause of the problem.
First of all your brake pads on this type of car do not have any kind of elec. sensor's, brake pads have tab's that will rub on your brake rotor's when brake pads are worn and make a ugly squeek sound to let you know you need brake's. I don't know if you all did the work or if a repair shop did, if a repair shop did the work a good tech would have seen both light's on and would have recommended computer diag. the reason the anti-lock light is on is your ABS computer pick up a bad signal from one of your sensor's, possible a wheel speed sensor, and same thing with your engine light computer got bad signal from one of your engine sensor's, one thing you could do is take it in and have computer diag. done and paid for that service or you could take it to almost any auto parts or some one like autozone and they will do a free computer code reading, but don't buy anything, then get back with us here at FixYa with rhe code number's so we can help you with your trouble code's.
ABS lite or regular brake lite?
If regular brake light you could have an internal leak in the master cylinder. The other options is that the brake light switch (on the emergency brake pedal or hand brake which ever is applicable) is grounded.
Either way have a repair shop check out both possibilities. They are a little tricky to diagnosis.
Your ABS has nothing to do with the brake pads. It is a computer controlled actuator that makes the brakes pulse intermittently when you lock them up. If your abs light is on, it means the system is off, down, broke, Get it fixed or put a piece of tape over the light, that is what everybody else does. The cost is high.
Check the ABS sensor there will be one on each of the front wheels and if it's not there believe it or not you have a bad ground connection on your battery post. Check all the wiring on each of the sensors make sure they don't have any 90* bends in them or you will have a faulty connection and maybe look for cracks in the protective plastic.
I have a 2002 Buick Century. The ABS light came on intermittantly. At first it was only around some turns, then eventually it was on most of the time. In addition the actual ABS brakes pumped which was annoying.
I jacked up my car, took off the front wheel, and found an exposed wire on the hire harness. The wire was encased in a black piece of plastic which was supposed to protect it. You can peel back the plastic to look at the wires inside. The exposed wire was interferring with the signal being sent from the speed sensor.
Wrapping the wire and the entire wire harness in black electrical tape solved the problem. Not sure if my fix is going to last too long, but it definately solved the problem.
I posted two pictures on Flickr ... the URLs follow (if they don't get edited out) http://www.flickr.com/photos/36273146@N02/4747740576 http://www.flickr.com/photos/36273146@N02/4747740658
i recently had this problem too, except i had all the lights on (ABS, service vehicle, trac-off, AND service engine) they are all easy to fix without spending more than 20-30$ for labour (depending how much your mechanic charges you) mine did it for free and he found out why the engine light is on afterwards too. so to fix all these lights (abs, trac-off, and service vehicle you MUST get another ABS cable (i went to a garage, they were towing a GM vehicle to the junk yard so i grabbed some scissors and cut BOTH abs cables on each side (good thing i did because one was bad) and braught them to my mechanic. the reason the lights come on is probably a defect or in my case my mechanic said it was salt buildup in the wires (on the drivers side) so he cut the wire off and rewired the new one and BOOM all the lights came off (service vehicle, abs, and trac-off) now for my service engine it says catalytic converter but im trying to put some fuel system cleaner to help it out i read somewhere that this is a defect of the car, so if you dont have that light yet, SELL your car ASAP for as much as you can get for it (after fixing the lights of course) and always google (car name+recalls) in the search bar to see what youre getting into, take care
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