NOTE
Use a fully charged battery when conducting self-diagnosis. Otherwise, the light (LED) and symbol do not light or blink.

When a problem occurs with DFI system and ignition system, the warning indicator light (LED) [A] goes on and FI warning symbol [B] are displayed on the LCD (Liquid Crystal Display) to alert the rider.
For models equipped with S-KTRC system, the warning indicator light (LED) [C] goes on and S-KTRC symbols [D] are alternately displayed on the LCD, when a problem occurs in the system.


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 the service code is displayed on the LCD, push the upper button and lower buttons for more than two seconds.
The display will return to the odometer.
When the ignition switch is turned to OFF.
Self-Diagnosis Flow Chart

Self-Diagnosis Outline
Service Code ReadingPiston Wear Inspection
Measure the outside diameter [A] of each piston 5 mm
(0.20 in.) [B] up from the bottom of the piston at a right
angle to the direction of the piston pin.
If the measurement is under service limit, replace the piston.
Piston Diameter
Standard: 75.959 75.974 mm
(2.9905 2.9911 in.)
...
Subthrottle Valve Actuator Resistance Inspection
Turn the ignition switch to OFF.
Disconnect the subthrottle valve actuator connector [A].
Connect a digital meter to the subthrottle valve actuator
connector [A].
Measure the subthrottle valve actuator resistance.
Subthrottle Valve Actuator Resistance
Connections: Y/BK lead [1 ...
Meter Unit Circuit (ZX1000K 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. Frame Ground 1
13. Engine ...