
1. Ignition Switch
2. Joint Connector E
3. ECU
4. Engine Ground
5. Battery
6. Starter Relay
7. Main Fuse 30 A
8. ECU Fuse 15 A
9. Frame Ground 2
10. Frame Ground 1
11. Fuse Box 1
12. Ignition Fuse 15 A
13. Joint Connector F
ECU Power Supply Inspection
CAN Communication LineWater Pump Impeller Disassembly/Assembly
Remove the water pump impeller (see Oil Pump Removal
in the Engine Lubrication System chapter).
The sealing seat and rubber seal may be removed easily
by hand.
Apply coolant around the surfaces of the rubber seal and
sealing seat.
Install the rubber seal [A] and sealing seat [B] into ...
Radiator Fan System
Fan Motor Inspection
Remove the air cleaner housing (see Air Cleaner Housing
Removal in the Fuel System (DFI) chapter).
Disconnect the connector [A].
Using an auxiliary leads, supply battery power to the fan
motor.
If the fan does not rotate, the fan motor is defective and
must be re ...
Air Switching Valve
Air Switching Valve Operation Test
Refer to the Air Suction System Damage Inspection in the
Periodic Maintenance chapter.
Air Switching Valve Unit Test
Remove the air switching valve (see Air Switching Valve
Removal in the Engine Top End chapter).
Set the hand tester [A] to the × 1 ...