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

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/InstallationBall Bearing and Needle Bearing
Do not remove pressed ball or needle unless removal is
absolutely necessary. Replace with new ones whenever
removed. Press bearings with the manufacturer and size
marks facing out. Press the bearing into place by putting
pressure on the correct bearing race as shown.
Pressing the incorrect ra ...
Front Wheel Removal
Remove:
Front Caliper Mounting Bolts [A] (Both Sides)
Front Caliper [B] (Both Sides)
Loosen:
Front Axle Clamp Bolts [A] (Right Side)
Front Axle [B]
Remove the lower fairings (see Lower Fairing Removal in
the Frame chapter).
Raise the front wheel off the ground.
...
KIBS System Circuit
1. Ignition Switch
2. Front Wheel Rotation Sensor
3. Front Brake Light Switch
4. Joint Connector C
5. Joint Connector D
6. ECU
7. Rear Wheel Rotation Sensor
8. Rear Brake Light Switch
9. Battery 12 V 8.6 Ah
10. Main Fuse 30 A
11. KIBS Motor Relay Fuse 30 A
12. KIBS Solenoid Valve Rela ...