Checking wheel sensor and sensor wheel

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off.
• Remove the wheel for better access.

  Check that the relevant wheel sensor is fitted tight to the spindle/hub. There must not be any dirt between the sensor and contact surface.

  Check that the relevant sensor wheel is properly tight and is free from damage (all teeth in place, no scratches, no deformations etc.).

  Do the necessary corrective action.

  Additional information: 

  • To remove/replace the front wheel sensor, see Wheel sensor, front, replacing .
  Fig 2: Identifying Wheel Sensor

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is there a fault? 

• YES 

  Refer to Verification 

• NO 

  Refer to Checking the brakes and wheel bearings