Wheel Speed Sensor: Service and Repair

Removal








Disconnect the negative battery lead working inside the engine compartment, disconnect the sensors.





Free the cable of the body mounting clips. From under the car, remove the grommet from the floor pan.









Raise vehicle on hoist and loosen sensor mounting screw and remove assembly.
Do not disturb the adjustment screw, which serves to adjust the gap between sensor and tonewheel. This way it will not be necessary to readjust the gap if you reuse the sensor (though it should be checked).



Installation

To install the original sensors on the front wheels, perform the removal operations just described in reverse sequence, observing the following suggestions:

Make sure the sensors are mounted at the proper wheels; especially if a new sensor is installed. Be sure it is the proper type for mounting in that position. Sensors are not interchangeable.

Make sure the sensor cables are perfectly secured at all mounting points to avoid damage to them during driving. Tighten the mounting screw to 9-10 Nm (80-89 in. lbs.).

Make sure the gap between the sensor and the tonewheel is 0.7 Nm (.028 inch).








If you find a different value than specified, clean sensor then loosen adjustment screw and bring the sensor into contact with the brass feller gauge. Hold the sensor in this position, tighten adjustment screw to 2.4-3 Nm (21-27 in. lbs.).

CAUTION: the gap between sensor and tonewheel must be measured In at least two or three different points around the tonewheel.

The new wheel speed sensors that are used for service are always provided with calibrated cardboard spacers. To adjust the gap, you need only to loosen the adjustment screw and position sensor head against the tonewheel. Tighten screw to 2.4-3 Nm (21-27 in. lbs.). Rotate wheel to remove cardboard spacer.