Kawasaki Ninja Service Manual: Backups

Kawasaki Ninja Service Manual / Self-Diagnosis System / Self-Diagnosis / Backups






(1): D-J Method: When the engine load is light like at idling or low speed, the ECU determines the injection quantity by calculating from the throttle vacuum (vacuum sensor output voltage) and engine speed (crankshaft sensor output voltage). This method is called D-J method.

(2): α-N Method: As the engine speed increases, and the engine load turns middle to heavy, the ECU determines the injection quantity by calculating from the throttle opening (throttle sensor output voltage) and the engine speed. This method is called α-N method.

*: This depends on the number of stopped cylinders.

The main throttle sensor is a rotating variable resistor that change output voltage according to throttle operating. The ECU senses this voltage change and determines fuel injection quantity, and ignition timing according to engine rpm, and throttle opening.

Input Terminal [A]: BL Output Terminal [B]: V/W Ground Terminal [C]: BR/BK


Service Code Erasing
When repair has been done, warning indicator light (LED) and warning symbol go off and service code are not displayed. But the service codes stored in memory of the ECU are not erased to preserve ...

Main Throttle Sensor (Service Code 11)

Other materials:

Air Intake Solenoid Valve Unit Test
Remove the air intake solenoid valve (see Air Intake Solenoid Valve Removal in the Fuel System (DFI) chapter). Set the hand tester [A] to the × 1 Ω range and connect it to the air intake solenoid valve terminals as shown in the figure. Special Tool - Hand Tester: 57001-1394 ...

Headlight Bulb Replacement
Turn the cover [A] counterclockwise, and remove it. Disconnect the headlight connector [A]. Open the clamp [B], and remove the bulb. NOTICE When handling the quartz-halogen bulb, never touch the glass portion with bare hands. Always use a clean cloth. Oil contamination from hand ...

Meter Unit Circuit (ZX1000J Model)
1. Ignition Switch 2. Joint Connector F 3. Stop Watch Button 4. Oil Pressure Switch 5. Crankshaft Sensor 6. Water Temperature Sensor 7. Gear Position Switch 8. Intake Air Temperature Sensor 9. ESD ECU (ZX1000JD/KD) 10. ECU 11. Rear Wheel Rotation Sensor 12. Engine Ground 13. Battery ...