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Home >> Porsche >> 2003 >> 911 Carrera 4S, Standard >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Anti-Lock Brake System (Abs) - 5.3 & Abs/TC 5.3, Diagnosis - 911 CARRERA (996) >> ABS 5.3 and ABS/TC 5.3 systems >> Function

ABS 5.3 and ABS/TC 5.3 systems: Function

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. 

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