ABS / TC 5.3 (4-channel system) system description: Function: Operation

Driving stability control:

If Traction Control (TC) detects that a certain speed difference between the wheels has been exceeded (wheel spin), engine power is automatically reduced.

Brake control: In addition to reducing the engine power (driving stability control), the TC (via the ABD) brakes the drive wheel that is spinning.

Since this control requires the drive wheels to be individually controlled, the ABS/TC system is a 4-channel system.