Kawasaki Ninja Service Manual: Front Wheel Rotation Sensor Signal Abnormal (Service Code b 42)

Kawasaki Ninja Service Manual / Self-Diagnosis System / KIBS Service Codes (KIBS Equipped Models) / Front Wheel Rotation Sensor Signal Abnormal (Service Code b 42)

Measure the air gap between the front wheel rotation sensor and sensor rotor.

Thickness Gauge [A]

Air Gap Standard: 0.4 1.6 mm (0.02
0.06 in.)

Front Wheel Rotation Sensor Signal Abnormal (Service Code b 42)

If the measurement is not the standard, check each part for deformation and looseness and correct accordingly.

If the measurement is the standard, go to next step.

Check that there is iron or other magnetic deposits between the sensor and sensor rotor, 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 proper part or replace faulty part.

If the all items are good, go to next step.

Perform the Pre-Diagnosis Inspection 1 and 2 (see Inquiries to Rider in the Brakes chapter).

If this service code appears even if all checks are ended, replace the KIBS hydraulic unit.

If the service code does not appear, the KIBS system normal (temporary failure).

KIBS Motor Relay Inspection (Service Code b 35)

Check the KIBS motor relay fuse (25 A) [A] (see Fuse Inspection in the Electrical System chapter) If the fuse is good, check the wiring continuity as follows. Disconnect: Battery Positive Ca ...

Front Wheel Rotation Sensor Wiring Inspection (Service Code b 43)

Disconnect the front wheel rotation sensor lead connector [A] (see Front Wheel Rotation Sensor Removal in the Brakes chapter). Disconnect the KIBS hydraulic unit lead connector (see ...

Other materials:

Exhaust Butterfly Valve Actuator Removal
NOTICE Never drop the exhaust butterfly valve actuator especially on a hard surface. Such a shock to the actuator can damage it. Remove: Front Seat (see Front Seat Removal in the Frame chapter) Clamp [A] Screws [B] and Washers Slide the covers [A] and loosen the lock nuts [B] ...

Service Code Reading
The service code(s) is displayed on the LCD by the number of two digits. NOTE The service code of the KIBS and ABS adds “b” at the left side of the code. The service code of the ESD adds “E” at the left side of the code. When there are a number of problems, all the serv ...

Wheel Alignment Inspection
Check that the notch [A] on the alignment indicator [B] aligns with the same swingarm mark or position [C] that the other side alignment indicator notch aligns with. If they do not, adjust the chain slack and align the wheel alignment (see Drive Chain Slack Adjustment). NOTE Wheel align ...