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/InstallationWheel Rotation Sensor Air Gap Inspection
Raise the front/rear wheel off the ground (see Front/Rear
Wheel Removal in the Wheels/Tires chapter).
Measure the air gap between the sensor and sensor rotor
at several points by turning the wheel slowly.
Thickness Gauge [A]
Wheel Rotation Sensor Air Gap
Standard:
Front 0.4 1.6 mm ...
Location of labels
All warning labels which are on your
vehicle are repeated here. Read labels
on your vehicle and understand them
thoroughly. They contain information
which is important for your safety and
the safety of anyone else who may operate
your vehicle. Therefore, it is very
important that all warning ...
KIBS Warning Indicator Light (For models equipped
with KIBS)
The yellow warning indicator light in
the meter unit functions as the KIBS
warning indicator light. The yellow
warning indicator light and warning
symbol “KIBS” go on if there is a malfunction
in the KIBS system. When the
warning light is on, the KIBS system
stops functioning. However, th ...