### Wheel Speed Sensor

#### REMOVAL AND INSTALLATION

##### Sentra and 200SX

WARNING
Be careful not to damage the sensor edge or the teeth on the rotor.

1. Raise the safely support the vehicle.
2. Disconnect the harness connector to the wheel speed sensor.
3. Remove the wheel speed sensor mounting bolt and carefully remove the sensor.
4. Installation is the reverse of removal.
5. On 1993–94 Sentra models, torque both speed sensor mounting bolts to 8–11 ft. lbs. (11–15 Nm).
6. On all other models, torque the bolt on the front speed sensor to 13–17 ft. lbs. (18–24 Nm) and the bolt on the rear speed sensor to 18–25 ft. lbs. (25–33 Nm).

   NOTE: Always install the sensor by hand, never force it into place.

##### Altima and Maxima

Fig. 1:Rear wheel speed sensor mounting locations — 1993–94 Maxima shown, other models are similar

WARNING
Be careful not to damage the sensor edge or the teeth on the rotor.

1. Raise the safely support the vehicle.
2. Disconnect the harness connector to the wheel speed sensor.
3. Remove the wheel speed sensor mounting bolt and carefully remove the sensor.
4. Installation is the reverse of removal. Torque the bolt on the front speed sensor to 13–17 ft. lbs. (18–24 Nm) and the bolt on the rear speed sensor to 18–25 ft. lbs. (25–33 Nm).

##### 240SX and 300ZX

WARNING
Be careful not to damage the sensor edge or the teeth on the rotor.

1. Raise the safely support the vehicle.
2. Disconnect the harness connector to the speed sensor.
3. Remove the wheel speed sensor mounting bolt and carefully remove the sensor.
4. Installation is the reverse of removal.
5. Torque the bolt on the front speed sensor to 8–12 ft. lbs. (11–16 Nm) and the bolt on the rear speed sensor to 13–20 ft. lbs. (18–26 Nm).

   Fig. 2:Rear wheel speed sensor mounting — 1996–97 300ZX