Wheel Speed

ABS/TCS HU/CM terminal:
RR: A (+)-B (-)

LR: C (+)-F (-)

RF: G (+)-D (-)

LF: I (+)-E (-)

Fig 1: Identifying Oscilloscope (Reference)
Courtesy of MAZDA MOTORS CORP.
Oscilloscope setting:
1 V/DIV (Y), 2 ms/DIV (X), AC range
Vehicle condition: Driving 30 km/h (18.6 mph)
NOTE:
- As vehicle speed increases, the wave period shortens.
- If there is malfunctioning in the sensor rotor, the wave profile warps.