Most injuries cause focal brain damage, damage confined to a small area of the brain. The focal damage is most often at the point where the head hits an object or where an object, such as a bullet, enters the brain. In addition to focal damage, closed head injuries frequently cause diffuse brain injuries or damage to several other areas of the brain.
As the wheel speed sensor is located very close to the braking system, the high heat generated by the brakes cause the wheel speed sensor to be more susceptible to damage. This in turn makes it one of the more common causes of the ABS light coming on. Unresponsive Hydraulic Pump or Valve.
The battery itself may be the cause if it has corroded cable terminals, damaged cells or plates inside or if it is leaking electrolyte. The charging system warning light should come on for a few seconds when you start the car, but if it turns on while you're driving, that signals a problem.