Vitara JS (4Dr) 2WD L4-2.0L (2000)
Wheel Speed Sensor: Service and Repair
Type 1
OUTPUT VOLTAGE INSPECTION
1. Turn ignition switch "OFF".
2. Hoist vehicle a little.
3. Disconnect connector of wheel speed sensor.
4. Connect voltmeter between connector terminals.
5. While turning wheel at a speed of approximately 2/3 to 1 full rotation per second, check AC voltage of sensor.
Output AC voltage at 2/3 to one rotation per second (35 - 53 Hz): 100 mV or more
If measured voltage is not as specified, check sensor, rotor and their installation conditions.
Reference