This a litte querk this car has had since I bought it,I bought the car with 90k miles on it,it now has 148k.The abs usually goes thru a check when first started and driven off,but every so often it doesn't perform it's check and throws a light,you can turn off the key and start over and that will reset the system,any clues?I have worked on abs systems on motorcycles and I know each system has there own litte bugs or common failure items,any info to cut to the chase is appreciated.