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Home >> Infiniti >> 2011 >> M56 x >> Repair and Diagnosis >> External Pages >> Different car >> Section 95 (Brake Control System (With VDC)) >> System Description >> Component Parts >> Wheel Sensor and Sensor Rotor

Wheel Sensor and Sensor Rotor

WARNING: This page is about a different car, the 2012 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • Wheel sensor and sensor rotor is integrated in wheel hub assembly.
  • Never measure resistance and voltage value using a tester because sensor is active sensor.
  • Downsize and weight reduction is aimed. IC for detection portion and magnet for sensor rotor are adopted.
  • Power supply is supplied to detection portion so that magnetic field line is read. Magnetic field that is detected is converted to current signal.
  • When sensor rotor rotates, magnetic field changes. Magnetic field change is converted to current signals (rectangular wave) and is transmitted to ABS actuator and electric unit (control unit). Change of magnetic field is proportional to wheel speed.
Fig 1: Wheel Sensor And Sensor Rotor Operation Diagram
G06936098Courtesy of NISSAN NORTH AMERICA, INC.
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