Kawasaki Z1000SX - Service manual > Rear Wheel Rotation Sensor Signal Abnormal (Service Code 44)

• Measure the air gap between the rear wheel rotation sensor and sensor rotor (see Wheel Rotation Sensor Air Gap Inspection).
• Check the rear wheel rotation sensor (see Rear Wheel Rotation Sensor Inspection).

  If both inspections are good, go to next step.

• 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 rotor tip for deformation or damage (e.g., chipped sensor rotor teeth).

  If the 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.

• 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] lights, the ABS hydraulic unit has trouble. Replace the ABS hydraulic unit.

  If the ABS indicator light (LED) does not light, ABS system is normal (service code is not stored; temporary failure.).

Rear Wheel Rotation Sensor Wiring Inspection (Service Code 45)

• Disconnect:
  ABS Hydraulic Unit Connector (see ABS Hydraulic Unit Removal)
  Rear Wheel Rotation Sensor Connector (see Rear Wheel Rotation Sensor Removal)
• Check the wiring continuity of the BK lead and BR/BK lead.

Special Tool - Hand Tester 57001-1394

Wiring Continuity Inspection
 ABS Hydraulic Unit
 Connector [A] ←→ Rear Wheel Rotation Sensor Connector [B]
  BK Lead Terminal [C]
  BR/BK Lead Terminal [D]

If there is not the continuity in the lead, replace or repair the main harness.

If the wiring is good, go to next step.

• 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] lights, replace the rear wheel rotation sensor (see Rear Wheel Rotation Sensor Removal).

  Still, when it is not good, replace the ABS hydraulic unit.

  If the ABS indicator light (LED) does not light, ABS system is normal (service code is not stored; temporary failure.).

Power Supply Voltage Abnormal (Low-Voltage) (Service Code 52)

• Check:
  Battery Condition (see Charging Condition Inspection in the Electrical System chapter)
  Charging Voltage (see Charging Voltage Inspection in the Electrical System chapter)
  If the battery and charging voltage are good condition, go to next step.
• 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] lights, the ABS hydraulic unit has trouble. Replace the ABS hydraulic unit.

  If the ABS indicator light (LED) does not light, ABS system is normal (service code is not stored; temporary failure.).

Power Supply Voltage Abnormal (Over-Voltage) (Service Code 53)

• Check the charging voltage (see Charging Voltage Inspection in the Electrical System chapter).

  If the charging voltage is good, go to next step.

• 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] lights, the ABS hydraulic unit has trouble. Replace the ABS hydraulic unit.

  If the ABS indicator light (LED) does not light, ABS system is normal (service code is not stored; temporary failure.)

ECU Inspection (Service Code 55)

• 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] lights, the ABS hydraulic unit has trouble. Replace the ABS hydraulic unit.

  If the ABS indicator light (LED) does not lgiht, ABS system is normal (service code is not stored; temporary failure.).

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