Wheel Speed Sensor: Testing and Inspection

TESTING THE WHEEL SPEED SENSOR

Air Gap Front PULSER:

1. Check the PULSER for chipped or damaged teeth.
2. Measure air gap between the sensor and PULSER all the way around while rotating the driveshaft by hand.

Standard: 0.4 - 1.0 mm (0.02 - 0.04 in)

NOTE: If the gap exceeds 1.0 mm (0.04 in), the probability is a distorted knuckle which should be replaced.

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WHEEL SENSOR SIGNAL CONFIRMATION

Fig. 5 Inspection Connector Location:

1. On 1991 Prelude models, with ignition switch off, disconnect 6-P inspection connector from connector cover on the right side of front console and connect it to anti-lock brake checker No. 07HAJ-SG0010A or equivalent, Fig. 5.

Fig. 7 Inspection Connector Location. Accord:

2. On 1992 Prelude and Civic models, with ignition switch off, disconnect 6-P inspection connector from connector cover on crossmember under passenger seat and connect it to anti-lock brake checker No. 07HAJ-SG0010A or 07HAJ-SG0010B or equivalent, Fig. 7.

Fig. 6 Inspection Connector Location. 1992 Prelude & Civic:

3. On Accord models, with ignition switch off, disconnect 6-P inspection connector from connector cover on the crossmember under passenger seat and connect it to anti-lock brake checker No. 07HAJ-SG0010A or equivalent on 1991 models or No. 07HAJ-SG0010B or 07HAJ-SG00100 or equivalent on 1992 models, Fig. 6.
4. On all models, raise and support vehicle so that all four wheels are off the ground.
5. Turn ignition switch on, then turn mode selector switch on anti-lock brake checker to ``0.''
6. With transmission in neutral, rotate each wheel at least one revolution per second and confirm that its respective monitor light on the checker blinks as wheel is rotating.
7. If any monitor light fails to blink, check the suspected sensor, its air gap, wiring and connectors.