See Figure 1
- Remove the sensor from the rear axle. Inspect the sensor for physical damage, such as cracks or missing pieces. If any such damage is evident, replace the sensor with a new one.
- Using a Digital Volt-Ohmmeter (DVOM), set to the ohmmeter function, measure the resistance between the sensor terminals, which should be 1.2-1.6 kilohms at 68°F (20°C). If the resistance is not as specified, replace the sensor with a new one.
- Measure the resistance between each sensor terminal and the sensor metal body, which should be 1 megohm or more. If the resistance is not as specified, replace the sensor with a new one.
- Install the sensor in the rear axle.
REMOVAL & INSTALLATION
See Figure 2
The rear wheel sensor should not be disassembled; if the sensor is found to be defective, the sensor should be replaced with a new one.
- Disconnect the negative battery cable.
- Block the front wheels, then raise and safely support the rear of the vehicle on jackstands.
- Detach the wiring harness connector from the sensor.
- Remove the wheel speed sensor retaining bolt, then pull the sensor out of the axle.
- Inspect the sensor and rotor for damage, especially that the sensor and rotor teeth are free of metal particles.
- Install the sensor into the rear axle, then install and tighten the retaining bolt to 186 inch lbs. (21 Nm).
- Reattach the wiring harness connector to the sensor.
- Lower the vehicle, and connect the negative battery cable.