Wheel Speed Sensor Inspection

NOTE: The outer board joint must be removed to inspect the magnetic encoder.

Clean the magnetic encoder, and make sure no metal or other debris is stuck to the magnetic encoder surface.
Check the magnetic encoder (A) for damage. If cracked or damaged, replace the encoder (wheel bearing).
- Front wheel bearing replacement (see KNUCKLE/HUB BEARING UNIT REPLACEMENT ).
- Rear wheel bearing replacement (see KNUCKLE/HUB BEARING UNIT REPLACEMENT ).
Front

Fig 1: Measuring Air Gap Between Wheel Speed Sensor And Magnetic Encoder (Front)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Rear

Fig 2: Measuring Air Gap Between Wheel Speed Sensor And Magnetic Encoder (Rear)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Measure the air gap between the wheel speed sensor (B) and the magnetic encoder all the way around while rotating the encoder.
Standard:

Front: 1.0-1.7 mm (0.04-0.07 in.)

Rear: 0.9-1.8 mm (0.04-0.07 in.)