It could be your ABS sensors, locate the wire leads and ABS sensors. The sensors are on inner side of the wheel hub and you should see the wire leads going to them. You can clean the ABS sensors with brake parts cleaner and inspect the wire leads for any damages like beaks and corrosion. The only other thing that would go bad also if all your ABS wheel sensors are good is the ABS module it self that may have gone bad and will need to be replaced.
One way to tell if this is the issue is..
1.go out to the vehicle.
2.turn the key on (dont start just turn on) and the (ABS) light should come on, go off and then come directly right back on and stay illuminated.
If this is the case you have a bad sheep speed sensor in either the left or right front wheel if the light does not go off even for a second when the key is turned on then it is probably the entire ABS module under the hood. Just disconected my entire ABS system from the jimmy by removing the fuse, this is a very common problem for these vehicles and nothing major. But i can say the light gets VERY annoying. It will be fine unless you really want your abs system to work and if you do, then you should replace the sensors in both front wheels the sensor is called "The Wheel Speed Sensor" and you can pick them up at Auto Zone or Part Source.
