Traction Control System (TCS)
It relies on the same wheel speed sensors as employed by the ABS.
However, the traction control system monitors wheel speed to identify when the driven wheel(s) is spinning faster than the others.
This occurs when the driver applies too much power for the conditions.
The traction control system intervenes to either reduce engine power (by reducing throttle opening), apply brake pressure to the spinning wheel or a combination of the two strategies.
This reduces or eliminates wheel spin and the driver is able to maintain steering control.