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:

Brake Pedal Removal
Remove: Rear Master Cylinder Mounting Bolts [A] Foot Guard [B] Screw and Stopper [C] Bolt [D] Front Footpeg Bracket Bolts [E] Cable Guide [F] Remove: Cotter Pin [A] Joint Pin [B] Rear Brake Light Switch Spring [C] Return Spring [D] Remove the brake pedal mounting b ...

Gear Position Switch Installation
Securely place the springs [A] and pins [B] into the holes [C] of the shift drum. Apply grease to the new O-ring [D]. Install the gear position switch [E]. Apply a non-permanent locking agent to the threads of the gear position switch screws [F]. Tighten: Torque - Gear Position Swit ...

Drive Chain Slack Inspection
NOTE Check the slack with the motorcycle setting on its sidestand. Clean the chain if it is dirty, and lubricate it if it appears dry. Check the wheel alignment (see Wheel Alignment Inspection). Rotate the rear wheel to find the position where the chain is tightest. Measure the ver ...