Rear
TESTING THE WHEEL SPEED SENSOR1. Remove rear caliper and brake disc.
2. Check pulser for chipped or damaged teeth and replace as necessary.
Fig. 83 Measuring Rear Speed Sensor Air Gap:
3. Measure air gap between sensor and pulser all the way around while rotating driveshaft by hand, Fig. 83. If gap exceeds its maximum specification at any point, the knuckle is most likely distorted and should be replaced. Air gap should be 0.02-0.04 inches.