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FI
FUEL INJECTION SYSTEM
An error is delected while reading from or writing on EEPROM (CO adjustment value,
code re-registering key code, and throttle valve fully closed notification value).
1
Fault code No.
44 Symptom
Used diagnostic code No. D60 (EEPROM improper cylinder indication)
Order
Inspection operation item and
probable cause
Operation item and countermeasure
Reinstatement
method
Reinstated by turn-
ing the main switch
ON.
Malfunction in ECU Execute the diagnostic mode (code No. D60)
8 01 is displayed on meter.
Readjust the CO of the displayed cylin-
der.
Replace ECU if defective.
Power supply to the fuel injector, fuel pump and ignistion coil are not
normal.
1
2
3
Fault code No.
43 Symptom
Used diagnostic code No. D09 (fuel system voltage)
Order
Inspection operation item and
probable cause
Operation item and countermeasure
Reinstatement
method
Reinstated by start-
ing the engine and
operating it at idle.
Connected condition of con-
nector
Inspect the coupler for any
pins that may have pulled
out.
Check the locking condition
of the coupler.
Faulty battery
Open or short circuit in wiring
harness.
If there is a malfunction, repair it and connect
it securely.
ECU coupler
Replace or charge the battery.
Refer to “CHECKING AND CHARGING THE
BATTERY” in chapter 3.
Execute the diagnostic mode (code No. D09)
TIP
When the leads are disconnected, the volt-
age check by the code No. D09 is impossable.
Repair or replace if there is an open or short
circuit.
8 Between battery and main switch
red-red
8 Between main switch and handlebar switch
(engine stop switch)
black/white-red/black
8 Between handlebar switch (engine stop
switch) and ECU
red/white-red/white
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