Rear Wheel Speed Sensor On-Vehicle Inspection: 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 

Fig 1: Identifying Rear Wheel Speed Sensor Voltage Waveform

Courtesy of SUZUKI OF AMERICA CORP.