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:

Front Master Cylinder Removal
Remove the reservoir mounting bolt and nut [A]. Unscrew the banjo bolt [A] and disconnect the brake hose from the master cylinder (see Brake Hose and Pipe Replacement in the Periodic Maintenance chapter). Unscrew the clamp bolts [B], and take off themaster cylinder as an assembl ...

Front Fork Oil Change
Remove the front fork (see Front Fork Removal (Each Fork Leg)). Turn the spring preload adjuster fully counterclockwise for removing the piston rod assy easily. Hold the inner tube lower end in a vise. Using the wrench [A], unscrew the top plug [B] out of the outer tube. Special Too ...

Valve-to-Guide Clearance Measurement (Wobble Method)
If a small bore gauge is not available, inspect the valve guide wear by measuring the valve to valve guide clearance with the wobble method as indicated below. Insert a new valve [A] into the guide [B] and set a dial gauge against the stem perpendicular to it as close as possible to the cy ...