I have a 2001 Buick Century 3.1 with 48,000 miles that has been into the shop several times in 5 months for the same issue. When applying the brakes, a noise and a grinding happens as though the anti-lock brake system or TRAC is engaging when skidding on ice. This will happen a few times, then the " service eng. Soon" light comes on as well as the " ABS" light and the " TRAC OFF" light. After the lights come on, this does not happen again. I assume this is because the TRAC is no longer engaged. Code: #C1225 - Excessive left wheel speed control vibration and Code: #C1216 -" EBCM Commanded Pres Rel is too long" is given when scanned by mechanic. The left front wheel bearing (hub) has been replaced 3 times as well as the ABS Control Module. After each service call the car works for a few weeks, then it all happens again. This still has not resolved the problem. We are grasping here trying to figure out what could be creating this issue.
There is a Technical service bulliten on your car! Both front Wheel speed harnesses are to be replaced...
Reference # 03-05-25-008 Issued october 2003
Seems the sensor wire is too long and rubs or loops over tie rods, causing damage to the sensors.
Go to a dealer with this info and ask for this to be done!