MX-5 Miata Mazdaspeed L4-1.8L DOHC Turbo (2004)
Wheel Speed Sensor: Testing and Inspection
FRONT/REAR ABS WHEEL-SPEED SENSOR INSPECTION
Clearance Inspection
1. Remove the wheel and tire, and inspect the sensor for looseness and damage. Replace the sensor as necessary.
2. Verify the clearance between the ABS wheel-speed sensor and the sensor rotor.
^
If not as specified, replace the ABS wheel-speed sensor or sensor rotor as necessary.
Clearance 0.3 - 1.1 mm (0.012 - 0.043 inch)
Resistance Inspection
1. Disconnect the ABS wheel-speed sensor connector.
2. Inspect for resistance at the ABS wheel-speed sensor.
Resistance 1.0 - 2.0 kilohm
Voltage Inspection
1. On level ground, jack up the vehicle and support it evenly on safety stands.
2. Disconnect the ABS wheel-speed sensor connector.
3. Inspect each wheel by rotating it at one revolution per second.
^
If not as specified, replace the ABS wheel-speed sensor or sensor rotor as necessary.
Voltage 0.25 - 2.0 V (AC)
