Hino 600, Workshop Manual, Page: 398 / 451

ABS (ABS : HYDRAULIC (E VERSION)) BR03–14
WHEEL SENSOR
These sensors are mounted facing the sensor rings on each wheel on the
front and rear axles.
The wheel sensors are electromagnetic sensors consisting of a permanent
magnet core with a coil of wire wrapped around it. The frequency of the
pulse signals generated by magnetic inductance between the sensors and
the sensor rings they face is proportional to the rotational speed of the
wheels. These pulse signals are sent to the ABS ECU and are used to
determine the wheels' rotational status.
SENSOR RING
The sensor rings are press-fitted into the insides of the wheel hubs of each
wheel or integrated in the brake rotor on the front and rear axles, and they
face the wheel sensors described in the preceding section. The sensor
rings are made of a magnetic material, and teeth are cut into the surface
which faces the wheel sensor at regular intervals.Also, when the sensor
ring performs one complete rotation, the sensor generates pulse signals
corresponding to the number of teeth.
Sensor ring position and number of teeth
SAPH068010300014
SAPH068010300015
Model
238
NE
258LP
NE
268
NE, NF
338
NF
Front
Position Rotor integrated
Teeth No. 100
Rear
Position Rotor integrated
Teeth No. 100