This is a third vehicle I have an Oldsmobile Silhouette 1998 I am not sure on the size of the engine yet. Wifey was driving and the ABS and TCS light came on and remains on. The vehicle is still driving fine and no other problems have come of this yet. The only difference in weather conditions is that the snow had start falling and then these lights came on.

Any suggestions would be great. I will be trying to purchase the book for my van soon but if there something that could be checked now that would be great. No work has been done on the van yet.

each wheel has a speed sensor it is on the back side of the hub. it has a connector with wires going to each one. the wires have a curve in them before the connector. it is possible that the connector is loose or a wire is broken.