Fault code No.
43
Diagnostic code No.
Order Item/components and probable
cause
1
Connections
• Relay unit coupler
• Wire harness ECU coupler
• Front cowling wire harness coupler
2
Open or short circuit in the wire har-
ness and/or front cowling wire har-
ness.
3
Malfunction or open circuit in 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).
d:09
Fuel system voltage
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 and
• Between relay unit coupler and
• Execute the diagnostic mode.
• Replace if defective.
• If there is no malfunction with
Symptom An error is detected while reading or writing on EEPROM
(CO adjustment value).
d:60
EEPROM fault cylinder No.
Check or maintenance job
• Set the faulty cylinder's exhaust
• Replace ECU if it does not re-
8-95
FUEL INJECTION SYSTEM
that may be pulled out.
the coupler.
and connect the coupler se-
curely.
open or short circuit.
ECU coupler.
(blue/yellow–blue/yellow)
(red/blue–red/blue)
engine stop switch coupler.
(red/black–red/black)
(Code No.d:09)
the fuel pump relay, replace the
ECU.
gas volume.
1. Execute the diagnostic mode
(Code No.d:60) to check the
faulty cylinder number. (If
multiple cylinders are defec-
tive, the numbers of the
faulty cylinders are displayed
alternately at 2-second inter-
vals.)
cover from the malfunction.
Reinstatement
method
Starting the en-
gine and oper-
ating it at idle.
Reinstatement
method
Turning the
main switch to
"ON".
(Readjust the
exhaust gas
volume after it
is reinstated.)