Suzuki GA413 Service Manual page 286

5E-32 ANTILOCK BRAKE SYSTEM (ABS) (OPTIONAL)
1. Wheel speed sensor connector
2. Rotate by hand
1. Peak-to-peak voltage
FRONT WHEEL SPEED SENSOR
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 1 full rotation
to 1 1/3 rotation per second, check AC voltage of sensor.
Output AC voltage at 1 to 1 1/3 rotation per second
: 100 mV or more
If measured voltage is not as specified, check sensor, rotor and
their installation conditions.
Reference
When using oscilloscope for this check, check if peak-to-peak volt-
age meets specification and waveform is complete.
Peak-to-peak voltage at 1 to 1 1/3 rotation per second
: 280 mV or more at 42 – 54 Hz
1. Left front wheel speed sensor
2. Left front strut
3. Sensor ring
4. Knuckle