Wheel Sensor Inspection

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2005 Honda S2000, 2004 Honda S2000, 2003 Honda S2000, 2002 Honda S2000, and 2001 Honda S2000. However, it is still accessible from the selected car via links, so may be relevant.

Inspect the front and rear pulser for chipped or damaged teeth.
Measure the air gap between the wheel sensor and pulser all the way around while rotating the pulser. Remove the rear brake disc to measure the gap on the rear wheel sensor. If the gap exceeds 1.0 mm (0.04 in.), check for a bent suspension arm.
Standard:

Front/Rear: 0.4-1.0 mm (0.02-0.04 in.)

Fig 1: Measuring Air Gap Between Wheel Sensor And Pulser
Courtesy of AMERICAN HONDA MOTOR CO., INC.