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/InstallationService Code Reading
The service code(s) is displayed on the LCD by the number
of two digits.
NOTE
The service code of the KIBS and ABS adds “b” at the
left side of the code.
The service code of the ESD adds “E” at the left side of
the code.
When there are a number of problems, all the serv ...
Rear Caliper Holder Shaft Wear
The caliper body must slide smoothly on the caliper holder
shafts [A]. If the body does not slide smoothly, one pad will
wear more than the other, pad wear will increase, and constant
drag on the disc will raise brake and brake fluid temperature.
Check to see that the caliper holder shafts ar ...
Catalytic Converter
This motorcycle is equipped with a
catalytic converter in the exhaust system.
The converter reacts with carbonmonoxide,
hydrocarbons and nitrogen
oxides to convert them into carbon
dioxide, water, nitrogen and oxygen resulting
in much cleaner exhaust gases
to be discharged into the atmosphe ...