Yamaha RS Venture RST90GTY 2009 Mode D'emploi page 148

Er-1
Er-2
Fault code No.
Er-3
Er-4
Diagnostic code No. – –
Order Item/components and probable cause
1 Connections
• Wire harness ECU coupler
• Sub-wire harness 2 coupler
2 Open or short circuit in wire harness
and/or sub-wire harness 2.
3 Malfunction in speedometer unit.
4 Malfunction in ECU.
FUEL INJECTION SYSTEM
Symptom No signals are received from the ECU.
Symptom No signals are received from the ECU within the specified signal time.
Symptom Data from the ECU cannot be received correctly.
Symptom Non-registered data has been received from the meter.
Check or maintenance job
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.
Repair or replace if there is an open or short cir-
cuit.
Between speedometer unit coupler and ECU
coupler.
Blue/Yellow – Blue/Yellow
Replace the speedometer unit.
Replace the ECU.
70
FI
Reinstatement
method
Setting the
engine stop
switch to "RUN"
and turning the
main switch on.