Clearance inspection

Remove the rear ABS wheel-speed sensor.
Measure the distance between the rear ABS wheel-speed sensor installation surface and the rear ABS sensor rotor. This is dimension A.
Calculate the clearance between the rear ABS wheel-speed sensor and the ABS sensor rotor using the following formula:
Clearance (mm {in}) = A-15 mm {0.59 in}
Verify that the clearance between the ABS sensor rotor and the rear ABS wheel-speed sensor is as indicated below.
- If there is any malfunction, verify the installation condition and replace if necessary.
  Clearance
  
  0.3-1.1 mm {0.02-0.04 in}
  
  Fig 1: Inspecting Clearance Between Rear ABS Wheel-Speed Sensor And ABS Sensor Rotor
  Courtesy of MAZDA MOTORS CORP.