Front

FRONT ABS WHEEL-SPEED SENSOR INSPECTION

Installation Visual Inspection
1. Inspect the following items:
^ If there is any malfunction, replace the applicable part.
1. Excessive play of the ABS wheel-speed sensor
2. Deformation of the ABS wheel-speed sensor

Clearance Inspection
1. Remove the front ABS wheel-speed sensor.
2. Measure the distance between the front ABS wheel-speed sensor installation surface and the ABS sensor rotor. This is dimension A.





3. Measure the distance between the front ABS wheel-speed sensor installation surface and the tip of ABS wheel-speed sensor. This is dimension B.
4. Calculate the clearance between the front ABS wheel-speed sensor and the ABS sensor rotor using the following formula:
Clearance (mm (in)) A - B
5. Verify that the clearance between the ABS sensor rotor and the front ABS wheel-speed sensor is as indicated below.
^ If there is any malfunction, replace it.
Clearance 0.3 - 1.0 mm (0.012 - 0.057 inch)

Sensor Output Value Inspection

Caution: Resistance inspection using other testers may cause damage to the ABS wheel-speed sensor internal circuit. Be sure to use the WDS or equivalent to inspect the ABS wheel-speed sensor.





1. Turn the ignition switch off.
2. Connect the WDS or equivalent to the DLC-2.
3. Select the following PIDs using the WDS or equivalent:
^ LF_WSPD
(LF wheel-speed sensor)
^ RF_WSPD
(RF wheel-speed sensor)
4. Start the engine and drive the vehicle.
5. Verify that the display of the WDS or equivalent shows the same value as the speedometer.
^ If there is any malfunction, replace the front ABS wheel-speed sensor.