Wheel Sensor Inspection

Remove the appropriate front driveshaft (see FRONT DRIVESHAFT REMOVAL ) or rear driveshaft (see REAR DRIVESHAFT REMOVAL ).
Check the magnetic encoder after cleaning the encoder. If necessary, replace the front wheel bearing (see KNUCKLE/HUB/WHEEL BEARING REPLACEMENT ) or rear wheel bearing unit (see KNUCKLE/HUB/WHEEL BEARING REPLACEMENT ).
Front

Fig 1: Checking Magnetic Encoder Cleaning Encoder (Front)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Rear

Fig 2: Checking Magnetic Encoder Cleaning Encoder (Rear)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Measure the air gap between the wheel sensor and the magnetic encoder all the way around while rotating the encoder.
Standard:

Front/Rear: 0.5-1.5 mm (0.02-0.06 in.)
NOTE:
- Install the wheel bearing with the magnetic encoder (brown color) toward the inside of the knuckle.
- Remove any oil, grease, dust, or other foreign material from the encoder surface.
- Keep magnetic tools away from the encoder surface.
- Be careful not to damage the encoder surface when you insert the wheel bearing.