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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 - 911 CARRERA (996) >> Component arrangement (ABS and ABS/TC) >> Function of individual components >> 4. Speed sensors

4. Speed sensors

The speed sensors provide wheel speed information (speed information of each wheel) to the control module. These speed sensors operate according to the inductive principle, in which sinusoidal alternating voltages are generated in accordance with the number of teeth on a pulse wheel and at a frequency that is a measure of the wheel speed.