FUEL INJECTION SYSTEM
FI
ifl
Power supply to the fuel injector, fuel pump and ignistion coil are not
Fault code No. 43 Symptom
normal.
Used diagnostic code No. D09 (fuel system voltage)
Order
Inspection operation item and
probable cause
Operation item and countermeasure
Reinstatement
method
1
2
3
Connected condition of con-
nector
Inspect the coupler for any
pins that may have pulled
out.
Check the locking condition
of the coupler.
If there is a malfunction, repair it and connect
it securely.
ECU coupler
Reinstated by start-
ing the engine and
operating it at idle.
1
2
3
Faulty battery
Replace or charge the battery.
Refer to “CHECKING AND CHARGING THE
BATTERY” in chapter 3.
Reinstated by start-
ing the engine and
operating it at idle.
1
2
3
Open or short circuit in wiring
harness.
Execute the diagnostic mode (code No. D09)
NOTE:
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)
brown-brown
8 Between handlebar switch (engine stop
switch) and ECU
red/white-red/black
Reinstated by start-
ing the engine and
operating it at idle.
Error is detected while reading from or writing on EEROM (code re-
Fault code No. 44 Symptom
registering key code and throttle valve fully closed notification valve).
Used diagnostic code No. D60 (EEPROM improper cylinder indication)
Order
Inspection operation item and
probable cause
Operation item and countermeasure
Reinstatement
method
1
Malfunction in ECU
Execute the diagnostic mode (code No. D60)
8 01 is displayed on meter.
Readjust the CO of the displayed cylin-
der.
Refer to “ADJUSTING THE EXHAUST
GAS VOLUME” in chapter 3.
Replace ECU if defective.
Reinstated by turn-
ing the main switch
ON.
7-23
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