Rear ABS Sensor Air Gap Measurement

Air Gap Measurement

caution
Never lever directly against the disc, caliper or the pad lining material. Always use a levering tool made from a soft material which will not cause damage to the load bearing surfaces.
  1. Using feeler gauges, measure the air gap between the wheel speed sensor and the pulser ring.
    2. Rear ABS Air Gap

    ABS Wheel Speed Sensor Air Gap Measurement

  2. Rotate the wheel and repeat the measurement in several places to ensure the pulser ring is not distorted or bent. Renew a damaged pulser ring.
  3. Adjust the air gap using the correct shim to achieve an air gap between 0.74 mm to 1.36 mm.
    4. note
    Shims are available in the following sizes, 0.5 mm, 1.0 mm, 1.5 mm, and 2.0 mm.
  4. If necessary, remove the wheel speed sensor, fit the correct thickness shim and refit the wheel speed sensor and tighten the fixing to 9 Nm.
    5. Rear ABS Wheel Speed Sensor - Installation (cguu_2)

    1. Fixing

    2. ABS sensor

    3. Shim

  5. Repeat the air gap measurement. Re-adjust as necessary.