Yamaha Raptor 700R 2009, Service Manual

Page: 338 / 374

FUEL INJECTION SYSTEM
8-49
Fault code No. 43 Symptom Power supply to the fuel injector and fuel pump is not nor-
mal.
Diagnostic code No. d09 Fuel system voltage
Order 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 se-
curely.
Starting the en-
gine and oper-
ating it at idle.
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/red–blue/red)
(red/blue–red/blue)
• Between relay unit coupler and
battery terminal.
(brown/green–red)
• Between relay unit coupler and
handlebar switch coupler.
(red/black–red/black)
3 Malfunction or open circuit in fuel in-
jection system relay • Execute the diagnostic mode.
(Code No. d09)
• Replace if defective.
• If there is no malfunction with
the fuel injection system relay,
replace the ECU.
Fault code No. 44 Symptom Error is detected while reading or writing on EEPROM (CO
adjustment value).
Diagnostic code No. d60 EEPROM improper cylinder indication
Order Item/components and probable
cause
Check or maintenance job Reinstatement
method
1 Malfunction in ECU. • Execute the diagnostic mode.
(Code No. d60)
• Replace the ECU if defective.
Turning the
main switch to
“ON”.