Yamaha YZFR6X(C) 2008 Service Manual page 389

Fault code No. 43
Diagnostic code No.
Item/components and probable
Order
cause
1 Connections
• Relay unit coupler (fuel pump relay)
• Main wire harness ECU coupler
2 Open or short circuit in wire harness.
3 Malfunction or open circuit in fuel
pump relay.
Power supply to the injectors and fuel pump is not nor-
Symptom
mal.
09 Fuel system voltage (battery voltage)
Check or maintenance job
• Check the couplers for any pins
• Check the locking condition of
• If there is a malfunction, repair
• Repair or replace if there is an
• Between relay unit coupler and
• Between relay unit coupler and
• Between relay unit coupler and
• Execute the diagnostic mode.
• Replace if defective.
• If there is no malfunction with
8-66
FUEL INJECTION SYSTEM
that may be pulled out.
the couplers.
it and connect the coupler
securely.
open or short circuit.
ECU coupler.
(blue/yellow–blue/yellow)
(red/blue–red/blue)
starter relay coupler.
(red–red)
right handlebar switch coupler.
(red/black–red/black)
(Code No. 09)
the fuel pump relay, replace the
ECU.
Reinstatement
method
Turning the
main switch to
"ON" when the
engine stop
switch is set to
" ".