Kawasaki Ninja Service Manual: ECU Power Source Circuit

Kawasaki Ninja Service Manual / Fuel System (DFI) / ECU / ECU Power Source Circuit

ECU Power Source Circuit


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
Remove the upper air cleaner housing (see Air Cleaner Element Replacement in the Periodic Maintenance chapter). Visually inspect the ECU connectors. If the connector is clogged with mud or d ...

CAN Communication Line
CAN Communication Line Resistance Inspection In this model, resistors for CAN communication line are built in the ECU [A] and meter unit. Refer to the Meter Unit Inspection in the Electrical Sy ...

Other materials:

Subthrottle Valve Actuator Input Voltage Inspection
NOTE Be sure the battery is fully charged. Turn the ignition switch to OFF. Disconnect the subthrottle valve actuator connector and connect the measuring adapter [A] between these connectors as shown in the figure. Main Harness [B] Subthrottle Valve Actuator [C] Special Tool ...

For Secondary Fuel Injectors
Remove the fuel tank (see Fuel Tank Removal). Disconnect the secondary fuel injector connector [A]. Connect a digitalmeter to the terminals in each secondary fuel injector [A]. Measure the secondary fuel injector resistance. Secondary Fuel Injector Resistance Standard: Abo ...

Coolant Level Inspection
NOTE Check the level when the engine is cold (room or ambient temperature). Check the coolant level in the reserve tank [A] with the motorcycle held perpendicular (Do not use the sidestand). If the coolant level is lower than the “L” level line [B], remove the upper fairing assembly (s ...