FUEL INJECTION SYSTEM
8-60
Fault code No.
43
Symptom
Power supply to the injectors and fuel pump is not nor-
mal.
Diagnostic code No.
09
Fuel system voltage (battery voltage)
Orde
r
Item/components and probable
cause
Check or maintenance job
Reinstatement
method
1
Connections
• Relay unit coupler (fuel pump relay)
• Main wire harness ECU coupler
• Check 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 the coupler
securely.
Turning the
main switch to
“ON” when the
engine stop
switch is set to
“
”.
2
Open or short circuit in the wire har-
ness.
• Repair or replace if there is an
open or short circuit.
• Between relay unit coupler and
ECU coupler.
(Blue/Yellow–Blue/Yellow)
(Red/Blue–Red/Blue)
• Between relay unit coupler and
starter relay coupler.
(Red–Red)
• Between relay unit coupler and
right handlebar switch coupler.
(Red/Black–Red/Black)
3
Malfunction or open circuit in fuel
pump relay.
• Execute the diagnostic mode.
(Code No. 09)
• Replace if defective.
• If there is no malfunction with
the fuel pump relay, replace the
ECU.
Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
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