Kawasaki Ninja Service Manual: Radiator Fan Relay Inspection

Kawasaki Ninja Service Manual / Self-Diagnosis System / Radiator Fan Relay (Service Code 56) / Radiator Fan Relay Inspection

If the radiator fan relay is normal, check the wiring for continuity, using the wiring diagram in this section.

Special Tool - Hand Tester: 57001-1394

If the wiring is good, check the ECU for its ground and power supply (see ECU Power Supply Inspection in the Fuel System (DFI) chapter).

If the ground and power supply are good, replace the ECU (see ECU Removal/Installation in the Fuel System (DFI) chapter).

Radiator Fan Circuit

Radiator Fan Circuit


1. ECU

2. Fan Motor

3. Ignition Switch

4. Joint Connector F

5. Fuse Box 1

6. Ignition Fuse 15 A

7. Relay Box

8. Fan Relay

9. Frame Ground 3

10. Fuse Box 2

11. Fan Fuse 15 A

12. Starter Relay

13. Main Fuse 30 A

14. Battery

15. Engine Ground

Radiator Fan Relay Removal/Installation
The radiator fan relay is built in the relay box [A]. Refer to the Relay Box Removal in the Electrical System chapter. ...

Subthrottle Valve Actuator (Service Code 62)
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Other materials:

Intake Air Temperature Sensor Output Voltage Inspection
NOTE Be sure the battery is fully charged. Turn the ignition switch to OFF. Remove the fuel tank (see Fuel Tank Removal in the Fuel System (DFI) chapter). Disconnect the intake air temperature sensor connector and connect the measuring adapter [A] between these connectors as shown in ...

Pressure Testing
Remove: Upper Fairing Assembly (see Upper Fairing Assembly Removal in the Frame chapter) Radiator Cap [A] Remove the radiator cap in two steps. First turn the cap counterclockwise to the first stop. Then push and turn it further in the same direction and remove the cap. Install the ...

Front, Rear Wheel Rotation Difference Abnormal Inspection (Service Code b 25)
Check the following and correct the faulty part. Incorrect Tire Pressure Tires not recommended for the motorcycle were installed (incorrect tire size). Deformation of Wheel or Tire Missing Teeth or Clogging with Foreign Matter of Sensor Rotor (see Wheel Rotation Sensor Rotor Inspe ...