Yamaha Star XVS13AA(C) 2011 Service Manual page 485

Fault code No. 43
Diagnostic code No.
Order Item/components and probable
cause
1 Connections
• Relay unit coupler (fuel pump relay)
• Wire harness ECU coupler
2 Open or short circuit in the wire har-
ness.
3 Malfunction or open circuit in relay
unit (fuel pump relay).
Fault code No. 44
Diagnostic code No.
Order Item/components and probable
cause
1 Malfunction in ECU.
Symptom The ECU is unable to monitor the battery voltage (an open
or short circuit in the line to the ECU).
09 Fuel system voltage
50 Fuel pump relay
Check or maintenance job
• Check the coupler for any pins
• Check the locking condition of
• If there is a malfunction, repair it
• Repair or replace if there is an
• Between relay unit coupler (fuel
• Between relay unit coupler (fuel
• Between relay unit coupler (fuel
• Execute the diagnostic mode.
• Replace if defective.
• If there is no malfunction with
Symptom Error is detected while reading or writing on EEPROM (CO
adjustment value).
60 EEPROM improper cylinder indication
Check or maintenance job
• Execute the diagnostic mode.
• Replace ECU if defective.
8-78
FUEL INJECTION SYSTEM
that may be pulled out.
the coupler.
and connect the coupler se-
curely.
open or short circuit.
pump relay) and ECU coupler.
(blue/red–blue/red)
(red/blue–red/blue)
pump relay) and starter relay
coupler.
(red–red)
pump relay) and right handlebar
switch coupler.
(black/red–black/red)
(Code No. 09 and/or 50)
the relay unit (fuel pump relay),
replace the ECU.
(Code No. 60)
1. Check the faulty cylinder. (If
multiple cylinders are defec-
tive, the numbers of the
faulty cylinders are displayed
alternately at 2-second inter-
vals.)
Reinstatement
method
Start the en-
gine and let it
idle for approxi-
mately 5 sec-
onds.
Reinstatement
method
Turning the
main switch to
"ON".