- Do the 1st step test.
Measure the air gap between the front wheel rotation sensor and sensor rotor.
- Thickness Gauge [A]
Air Gap
Standard: 1 mm (0.04 in.)
If the measurement is over standard, check each part for deformation and looseness and correct accordingly. Recheck the air gap.
If the measurement is correct, 2nd step.
![](https://motoinstruction.ru/img/kawasaki/23/128894.jpg)
- Do the 2nd step test.
Check that there is iron or other magnetic deposits between the sensor [A] and sensor rotor [B], and the sensor rotor slots for obstructions.
Check the installation condition of the sensor for looseness.
Check the sensor and sensor rotor tip for deformation or damage (e.g., chipped sensor rotor teeth).
If the sensor and sensor rotor in bad condition, remove the any deposits. Install the properly or replace faulty part.
If the all correct, 3rd step.
![](https://motoinstruction.ru/img/kawasaki/23/128895.jpg)
- Do the 3rd step test.
Recheck the service code indication; erase the service code, perform the pre-diagnosis inspection 1 and 2, and retrieve the service code.
If the ABS indicator light (LED) [A] lit, faulty ECU in the ABS hydraulic unit. Replace the ABS hydraulic unit.
If the ABS indicator light (LED) [A] unlit, ABS system is normal (service code is not stored; temporary failure.).
![](https://motoinstruction.ru/img/kawasaki/23/128896.jpg)