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Home >> Audi >> 1990 >> 80 Base, 2.0 A, Standard >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Description >> Speed Sensor
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Speed Sensor

A speed sensor is located next to hub on each axle. A speed sensor rotor is attached to each hub and rotates past speed sensors. Rotary motion of wheels is picked up by each sensor and an electrical signal is sent to ABS control unit.