Front Wheel Speed Sensor on-Vehicle Inspection
Front Wheel Speed Sensor On-Vehicle InspectionOutput Voltage Inspection
1) Turn ignition switch OFF.
2) Hoist vehicle a little.
3) Disconnect wheel speed sensor connector.
4) Disconnect wheel speed grommet from vehicle body.
5) Connect voltmeter between connector (1) terminals.
6) While turning wheel by hand at a speed of approximately 3/4 rotation to 1 1/4 rotation per second, check AC voltage of sensor.
Output AC voltage at 3/4 to 1 1/4 rotation per second
53 mV or more
7) If measured voltage is not as specified, check sensor, ring and their installation conditions.
Reference
When using oscilloscope for this check, check if peak-to-peak voltage (1) meets specification and waveform is complete.
Peak-to-peak voltage at 3/4 to 1 1/4 rotation per second
150 mV or more at 32 - 53 Hz
