9-178
18, 46_ABS
EAS20709
18, 46_ABS
EAS33373
TROUBLESHOOTING
Item
Rear wheel sensor (missing pulses)
Procedure
If pulse gaps are detected when the vehicle is traveling at a speed of 30 km/h (19 mi/h) or more, DTC
No. 18 will be recorded. If the vehicle is traveling at a speed of 29 km/h (18 mi/h) or less, DTC No. 46
will be recorded first and DTC No. 18 will be recorded if the condition continues.
1. Foreign material adhered around the rear wheel sensor
• Check the surface of the sensor rotor and wheel sensor for foreign material, such as metal particles.
2. Incorrect installation of the rear wheel
• Check the components for looseness, distortion, and bends.
Refer to “CHECKING THE REAR WHEEL” on page 4-33.
3. Defective sensor rotor or incorrect installation of the rotor
• Check the surface of the sensor rotor for damage.
Refer to “MAINTENANCE OF THE REAR WHEEL SENSOR AND SENSOR ROTOR” on page 4-
34.
4. Defective rear wheel sensor or incorrect installation of the sensor
• Check the wheel sensor for damage and the installed condition of the sensor.
Refer to “MAINTENANCE OF THE REAR WHEEL SENSOR AND SENSOR ROTOR” on page 4-
34.
Is check result OK?
YES
Go to step 2.
NO
Clean the sensor rotor and wheel sensor.
Is check result OK?
YES
Go to step 3.
NO
Replace the wheel axle, tire, rear wheel, wheel bearings or oil seals.
Is check result OK?
YES
Go to step 4.
NO
Replace the sensor rotor.
Is check result OK?
YES
Replace the hydraulic unit assembly (ABS ECU).
NO
Repair or replace the wheel sensor.
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