Yamaha FZ6-SS 2004, Service Manual, Page: 364 / 456

7-23
FUEL INJECTION SYSTEM
FI
Fault code No. Er-1 Symptom No signals are received from the ECU.
Used diagnostic code No. – –
Order Inspection operation item and probable
cause Operation item and countermeasure Reinstatement
method
1 Connected condition of connector
Inspect 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 it
securely.
Main wiring harness ECU coupler
Sub-wire harness coupler
Reinstated by
turning the
main switch
ON and
receives a
2 Open or short circuit in wiring harness
and / or sub lead. Repair or replace if there is an open or short
circuit.
Between meter coupler and ECU coupler
yellow / blue - yellow / blue
black / white - black / white
normal signal.
3 Malfunction in meter Replace the meter.
4 Malfunction in ECU Replace the ECU.
Fault code No. Er-2 Symptom No signals are received from the ECU within the specified duration.
Used diagnostic code No. – –
Order Inspection operation item and probable
cause Operation item and countermeasure Reinstatement
method
1 Connected condition of connector
Inspect 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 it
securely.
Main wiring harness ECU coupler
Sub-wire harness coupler
Reinstated by
turning the
main switch
ON and
receives a
2 Open or short circuit in wiring harness
and / or sub lead. Repair or replace if there is an open or short
circuit.
Between meter coupler and ECU coupler
yellow / blue - yellow / blue
black / white - black / white
normal signal.
3 Malfunction in meter Replace the meter.
4 Malfunction in ECU Replace the ECU.
Fault code No. Er-3 Symptom Data from the ECU cannot be received correctly.
Used diagnostic code No. – –
Order Inspection operation item and probable
cause Operation item and countermeasure Reinstatement
method
1 Connected condition of connector
Inspect 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 it
securely.
Main wiring harness ECU coupler
Sub-wire harness coupler
Reinstated by
turning the
main switch
ON and
receives a
2 Open or short circuit in wiring harness
and / or sub lead. Repair or replace if there is an open or short
circuit.
Between meter coupler and ECU coupler
yellow / blue - yellow / blue
black / white - black / white
normal signal.
3 Malfunction in meter Replace the meter.
4 Malfunction in ECU Replace the ECU.