Removal
Note: Installation is carried out in the reverse order of removal.
1. Disconnect the speed sensor connector.
a) Remove the fender liner.
b) Disconnect the connector.
2. Remove the speed sensor.
a) Unscrew the bolts securing the sensor wiring harness.
- Tightening torque during installation - 5.5 Nm
b) Remove the speed sensor from the steering knuckle.
- Tightening torque during installation - 8 Nm
Examination
1. Check the front wheel speed sensors.
a) Remove the fender liner.
b) Disconnect the speed sensor connector.
c) Measure the resistance between the connector terminals of each sensor.
- Nominal resistance - 0.6 -1.8 kOhm
If the value does not correspond to the nominal value, replace the sensor.
d) Check for continuity between each of the terminals and the sensor body. If there is continuity, replace the sensor.
d) Connect the speed sensor connectors.
e) Install the fender liner
2. Check that the wheel speed sensor is installed correctly and that the tightening torque of the sensor mounting bolt corresponds to the permissible value.
- Tightening torque - 7.8 Nm
3. Visually inspect the teeth of the wheel speed sensor rotor.
a) Remove the drive shaft.
b) Check the sensor rotor teeth for scratches, cracks, deformation or missing teeth
c) Install the drive shaft.
Caution: To prevent damage to the sensor rotor teeth, do not strike the drive shaft.
Checking the front wheel speed sensor
1. Connect the oscilloscope to the speed sensor connector.
2. While driving at a speed of 20 km/h, check the oscillogram.
3. Check that "C" = 0.5 V or more. If not, replace the sensor
4. Check that "B" is 30% or more of "A". If not, replace the drive shaft.